Curriculum Vitae (CV)

This is a shortened version of my CV to protect some sensitive information. The full version of my CV can be requested via e-mail.

Personal Details

Salutation	Mr. M.Eng.
Full Name	René Schwarz
E-Mail Address	mail@rene-schwarz.com (PGP: 0x687A7D75)
Personal Website	https://www.rene-schwarz.com

Profile Summary

• Master of Engineering (M.Eng.) in Computer Science and Communication Systems; Bachelor of Engineering (B.Eng.) in Mechatronics, Industrial and Physics Technology
• 10+ years of professional experience in space systems engineering, research & development with a focus on Guidance, Navigation, and Control (GNC) systems in international project contexts with globally distributed teams of engineers and scientists with medium to large team sizes (up to 200 team members)
  • main fields of work and expertise: systems engineering (system design, product realization, technical management); MiL/SiL/PiL/HiL (real-time) simulation & verification; (model-based) software engineering; safety-critical embedded systems development; lab setups and software toolchains for development and verification
  • familiar with associated civil and military norms & standards as well as legal frameworks
  • strong affinity to technical documentation
• 9+ years of technical and administrative management experience of interdisciplinary, multinational, geographically distributed teams of engineers and scientists in varying team sizes (3–25 persons)
  • held overall technical and scientific responsibility as well as partial budget, schedule, and staff responsibility
  • product owner, subsystem manager, technical manager, and systems engineer roles in the context of the development of complex, safety- and mission-critical avionics systems for space applications in various projects
  • prepared and supported several hundreds of public procurement processes, including national and international tendering processes
• 20+ years experience in planning, implementation, and operation of IT infrastructure and services

Professional Experience

since October 1, 2023

System Developer for Networked Soldier Systems Rheinmetall Electronics GmbH, Bremen, Germany Business Unit Integrated Electronic Systems Department of Networked Land Combat Systems via SThree Temp Experts GmbH, Frankfurt am Main, Germany

May 21, 2012 – September 31, 2023

Research Group Leader (since January 1, 2014) and Research Engineer German Aerospace Center (DLR) Institute of Space Systems, Bremen, Germany Department of Guidance, Navigation and Control Systems Roles: Head of GNC Appliances Group (since January 1, 2014) Technical and administrative management of a research group (permanently established organizational unit) consisting of 5 team members with the main focus on holistic research, design, development, simulation, implementation, test, and verification of Guidance, Navigation, and Control (GNC) appliances for space applications. responsible and independent professional representation of the whole subject area “GNC Appliances” for the entire department, both internally and externally overall technical and scientific responsibility for all group activities partial disciplinary management responsibilities towards employees: goal agreements; appraisal interviews; business travel permits; holiday/flextime permits; right to make suggestions for further training measures; involvement in hiring processes (job descriptions, requirements for applicants, selection of candidates); right to have a say in decision processes to extend or terminate employment contracts and the payment of allowances/bonuses planning and assignment of tasks to individual team members coordination and monitoring of the implementation of research and development projects and tasks; assumption of overall professional responsibility for all project and work package managers within the group planning of professional development of the research group independent initiation, preparation, and planning of new research projects and projects with national and international partners in science and industry accountability for scientific results and their dissemination coordination of knowledge management ensuring occupational health and safety in the area of responsibility Deputy Head of the GNC Systems Department (ex officio since January 1, 2014) Head of the Hardware-in-the-Loop Technology Laboratory (Feb. 2014 – Feb. 2023) Laboratory for developing and testing GNC sensors, electronics, hardware, and embedded software in distributed real-time simulations. Deputy Head of the GPS/INS Test & Verification Facility (Dec. 2014 – Feb. 2016) Facility for test and verification of GPS and inertial navigation sensors; equipped with a 3-axis rotation table, thermal chamber, and an L1/L2/L5 GPS constellation simulator. Department IT Manager (since June 2013) Further project-related roles: see section “Research & Development Experience” Fields of Work and Expertise: systems engineering; simulation & verification of GNC appliances; software engineering for GNC systems; embedded systems development; real-time data acquisition and handling; distributed reliable systems design; reliability and fault tolerance; model-based design, code generation, and verification; lab setups and software toolchains for development and verification; IT infrastructure planning and administration Projects: see section “Research & Development Experience”

Secondary and Free-Lance Activities

since March 1, 2024	Sole Proprietor (secondary occupation) M.Eng. René Schwarz International Goods Trading Syke, Germany Business Focus: Online retail of various goods from international origins, with a focus on products from Latin America and distribution of products with own designs (e. g., textiles, pins, stickers).
since February 1, 2023	Sole Proprietor (secondary occupation) M.Eng. René Schwarz Information Technology & Engineering Services Syke, Germany Business Focus: IT consulting: digitalization/automation of business and engineering processes network technology servers, user-specific applications IT security creation, hosting, operation, and maintenance of websites and web applications advertising/marketing and technical documentation: design of online and print media corporate design and public relations conceptualization and creation of technical documentation consulting and support in systems engineering: elicitation, analysis, documentation, and management of requirements system analysis and decomposition validation and verification technical planning interface management technical risk management configuration management technical data management technical evaluation and decision analysis
Jun. 2011 – Dec. 2011	Consultant and Proposal Writer Merseburg University of Applied Sciences, Merseburg, Germany Prof. Dr. phil. Hardy Geyer, Vice-Rector for Teaching and Learning Multiple work contracts for the university management for the development of a concept for the increase of application-oriented teaching and the improvement of supervision of beginning students
Oct. 2009 – Sep. 2010 & Oct. 2007 – Mar. 2009	Student Assistant Merseburg University of Applied Sciences, Merseburg, Germany Faculty of Computer Science and Communication Systems Prof. Dr.-Ing. Karsten Hartmann, Dean Research Project “Virtual Places”
Oct. 2009 – Mar. 2010	Student Assistant Merseburg University of Applied Sciences, Merseburg, Germany Faculty of Computer Science and Communication Systems Prof. Dr. rer. pol. Ronny Weinkauf Development of an E-Learning Module
Mar. 2009 – Nov. 2009	Intern German Aerospace Center (DLR), Institute of Space Systems, Bremen, Germany Department of Guidance, Navigation and Control Systems Experimental setup, protocol and software implementation for the system identification of reaction wheels of type RW90
Apr. 2007 – Sep. 2007	Student Assistant Merseburg University of Applied Sciences, Merseburg, Germany Faculty of Computer Science and Communication Systems Prof. Dr.-Ing. Monika Trundt Preparation of teaching materials in the field of electrical engineering

Professional & General Competencies

Development Methods & Tools	embedded C/C++ software development using (cross-)compiler toolchains based on GCC on Linux and Windows (Cygwin, MinGW) systems version control of source code, documentation, and other data using Git and Subversion (SVN), both on CLI and using graphical interfaces such as TortoiseSVN/TortoiseGit collaborative development and management of source code, documentation, and other versioned data with GitLab and GitHub extensive use of collaboration tools such as Confluence, Jira, Mattermost, SharePoint software development automation using Jenkins and GitLab CI model-based C/C++ code generation using MATLAB/Simulink/Embedded Coder implementation of real-time software on RTEMS, FreeRTOS, and µC/OS-II RTOSs technical documentation writing with LATEX (XeLaTeX, LuaLaTeX) utilizing MiKTeX and TeX Live on Windows and Linux systems; in-code documentation with Doxygen real-time simulations (PiL and HiL) with dSPACE SCALEXIO and PHS real-time simulation platforms and dSPACE ConfigurationDesk/ControlDesk static C/C++ code analyses using MathWorks Polyspace Bug Finder and Code Prover software architecture modeling with UML and Enterprise Architect requirements management with DOORS Classic & Next Generation, among others tailoring of relevant civil and military norms & standards to specific applications establishment of verification programs with the definition of associated verification methods, planning, tools, control methodology, documentation as well as verification management and organization based on ECSS-E-ST-10-02C
Programming/Scripting Languages	Basic, C, C++, C#, CSS, HTML, JavaScript, $\LaTeX$, Lua, Mathematica, (Embedded) MATLAB, Pascal, Perl, PHP, Python, R, XML
Project & Technical Management	used traditional (waterfall, V model) and agile methods for project management held product owner, subsystem manager, and technical manager roles in various projects: responsibility for coordination of engineering teams; completion of work on budget and schedule; compliance to technical and legal requirements; management of stakeholder expectations; fulfillment of quality, reliability, and safety objectives; risk management prepared and supported several hundreds of public procurement processes, including national and international tendering processes, with a cumulative order value of several million euros with responsibility for the statement of work definition, technical specification definition, supplier selection, acceptance of deliverables, and supervision in technical officer role throughout the entire procurement process knowledge of relevant German, European, and international legal regulations such as AWG, AWV, KrWaffKontrG, Regulation (EU) 2021/821 (EU Dual Use Regulation), Regulation (EC) No 765/2008 (CE Marking), Directive 2011/65/EU (RoHS), Regulation (EC) No 1907/2006 (REACH), EAR, ITAR
Systems Engineering	held systems engineering roles in the context of the development of complex, safety- and mission-critical avionics systems for space applications in various projects; responsibilities: system design: stakeholder expectations definition; technical requirements elicitation; logical/functional system decomposition; design solution definition & trade-offs product realization: product implementation; product integration; product verification; product validation technical management: technical planning; requirements management; interface management; technical risk management; configuration management; change management; technical data management; technical assessment; decision analyses Certified Professional for Requirements Engineering (CPRE) — Foundation Level
IT Competencies	extensive knowledge and over 20 years of experience with planning, implementation, administration, and operation of IT infrastructure and services administration of servers and clients based on Linux (mainly Ubuntu and Debian) and Windows, manually and with automated system configuration management tools such as Puppet virtualization with classical (VMware vSphere & ESXi, VirtualBox, VMware Workstation) and container-based (Docker) approaches setup and operation of web servers with Apache and PHP; MySQL, PostgreSQL, and IBM Db2 database servers; e-mail servers with Postfix and Dovecot; DNS servers with BIND; DHCP servers with ISC DHCP; SVN servers; SMB/CIFS file servers with Samba; Docker container registries with VMware Harbor installation and administration of various web applications, among others: Confluence, DOORS Next Generation, Etherpad, Gitea, GitLab, ILIAS, Matomo (formerly Piwik), MediaWiki, Nextcloud, Overleaf (formerly ShareLaTeX), Owncloud, phpMyAdmin, Roundcube, WordPress setup and operation of computer networks utilizing Cisco equipment with IOS (XE) planning and administration of network firewalls based on pfSense & OPNsense setup and operation of Synology iSCSI NAS systems in high availability settings IT infrastructure monitoring with Zabbix conception and programming of own software, contributions to several open source projects (e. g. Drupal CMS, Mozilla Firefox) developed own software to support professional activities in space engineering, e. g., in the domains of requirements management, verification control, automated documentation
Norms & Standards	ECSS standards for verification (E-ST-10-02C), testing (E-ST-10-03C), systems engineering & requirements management (E-ST-10C, E-ST-10-06C), project lifecycle management (M-ST-10C), software engineering (E-ST-40C, Q-ST-80C), AOCS/GNC (E-ST-60-30C), dependability (Q-ST-30C), safety (Q-ST-40C) DO-178C/254/330/331/332 (EUROCAE ED-12C/80/215/218/217) for safety-critical software engineering and avionics development for aerospace applications IEC 60812/61025 and ECSS-Q-ST-30-02C for FMEA/FMECA/FTA for technical risk management and reliability & dependability engineering various IEEE standards in the context of software engineering and inertial sensors MIL-STD-810 for environmental qualification of U. S. military equipment various NASA standards and handbooks for verification and systems engineering CCSDS standards for Space Packet Protocol and XTCE MISRA-C/MISRA-C++ as coding guidelines for C/C++ programming
Software	Coding & Software Engineering: Cygwin, Docker, Eclipse, Enterprise Architect, GCC, GDB, Oxygen XML Editor, Polyspace Bug Finder & Code Prover, Visual Studio, Visual Studio Code Documentation, Illustration, and Publishing: Adobe Illustrator, InDesign & Photoshop, Affinity Designer & Photo, Doxygen, GIMP, Inkscape, $\LaTeX$/XeLaTeX/LuaLaTeX (MiKTeX and TeX Live), LibreOffice, Microsoft Office, pandoc Engineering Tools: Altium Designer, CATIA V5-6, dSPACE ConfigurationDesk & ControlDesk, IBM Rational DOORS, IBM Rational DOORS Next Generation, KiCad Operating Systems: Windows, Linux (especially Debian-based derivatives), VMware ESXi, Cisco IOS (XE), µC/OS-II, RTEMS Scientific Computing and Simulation: Mathematica, MATLAB/Simulink, R, Scilab/Scicos, SPICE (NASA), Statistica, STK Other Software: Citrix Workspace, SAP, VirtualBox, VMware Workstation Pro
Accreditations	Under the Laws of the Federal Republic of Germany: Driver’s License, Classes AM, A1 (79.05), A2, A (79.03, 79.04), B, L Restricted Flight Radiotelephone Operator’s Certificate II (BZF II) Emergency Responder According to § 10 Arbeitsschutzgesetz (ArbSchG) and § 21 Sozialgesetzbuch VII (SGB VII) — expired Permission to Operate Bridge and Pillar-Mounted Slewing Cranes According to the Regulations of the German Employer’s Liability Insurance Association Under the Laws of the European Union: Medical Certificate for Pilots, Class 2 (pertaining to an EASA Part-FCL license, issued in accordance with EASA Part-MED, complying with ICAO standards)
Languages	German (native) English (proficient) Spanish (novice) Russian (learned in school, but never actively used)

Graduations & Certifications

September 18, 2024	Certified Professional for Requirements Engineering (CPRE) Foundation Level International Requirements Engineering Board (IREB) certified by Certible
May 4, 2012	Master of Engineering (M.Eng.) in Computer Science and Communication Systems, Specialization in Artificial Intelligence Merseburg University of Applied Sciences, Merseburg, Germany Master's Thesis: Development of an illumination simulation software for the Moon's surface: An approach to illumination direction estimation on pictures of solid planetary surfaces with a significant number of craters in cooperation with the Institute of Space Systems of the German Aerospace Center (DLR) German Grade ECTS Grade U.S. Grade Thesis Grade 1.0 (very good) A (excellent) A Overall Grade 1.0 (very good) A (excellent) GPA: 3.97/4.00 Supervisors: Prof. Dr. rer. nat. Hartmut Kröner (Merseburg University of Applied Sciences) Dipl. Math.-Techn. Bolko Maass (DLR)
November 13, 2009	Bachelor of Engineering (B.Eng.) in Mechatronics, Industrial and Physics Technology, Specialization in Mechatronics Merseburg University of Applied Sciences, Merseburg, Germany Bachelor's Thesis: Simulationsmodell eines Reaktionsrades für den Satelliten “AsteroidFinder/SSB” in cooperation with the Institute of Space Systems of the German Aerospace Center (DLR) German Grade ECTS Grade U.S. Grade Thesis Grade 1.0 (very good) A (excellent) A Overall Grade 2.0 (good) B (very good) GPA: 3.67/4.00 Supervisors: Prof. Dr.-Ing. Karsten Hartmann (Merseburg University of Applied Sciences) Prof. Dr.-Ing. Rainer Winz (Merseburg University of Applied Sciences) Dr.-Ing. Markus Schlotterer (DLR) Dipl.-Ing. Ansgar Heidecker (DLR)
July 7, 2006	Higher Education Entrance Qualification with Honors (overall German grade 1.3)
July 9, 2003	Secondary School Certificate with Permission to Attendance at Senior Classes with Honors (overall German grade 1.22)

Education

since Oct. 2016	Undergraduate Student FernUniversität in Hagen — University of Hagen, Germany Faculty of Law, Bachelor of Laws (LL.B.) Degree Program Attended and Passed Courses Propädeutikum (Frau Prof. Dr. Katharina Gräfin von Schlieffen)
Oct. 2009 – May 2012	Graduate Student Merseburg University of Applied Sciences, Merseburg, Germany Faculty of Computer Science and Communication Systems Master of Engineering Degree Program in Computer Science and Communication Systems, Specialization in Artificial Intelligence Attended and Passed Courses Computergestützte Datenanalyse (Herr Prof. Dr. rer. nat. habil. Eckhard Liebscher) Computergrafik (Herr Dr. rer. nat. habil. Andreas Hartwig) Echtzeitbetriebssysteme (Herr Prof. Dr.-Ing. Rainer Winz) Einführung in die Künstliche Intelligenz (Herr Dipl.-Inform. Thomas Wendt) Elektronische Dokumentation und Multimedia I Auszeichnungssprachen I (Herr Dr. rer. nat. Thomas Meinicke) Grundlagen der 2D-Animation (Herr Prof. Dipl.-Des. Frank Hofmann) Entwurf integrierter Schaltungen und Systeme (Herr Prof. Dr.-Ing. Steffen Becker) Höhere Logikkalküle (Herr Prof. Dr. phil. Dr. rer. nat. habil. Michael Schenke) Mobile Computing (Herr M.Eng. Ulrich Borchert) Projektarbeit: Entwurf integrierter Schaltkreise und Systeme (Digital) (Herr Prof. Dr.-Ing. Steffen Becker) Projekt- und Innovationsmanagement Wirtschaftsrecht und Produkthaftung (Frau Prof. Dr. Gerlind Federhoff-Rink) Projektmanagement (Herr Dr. André Döring) Rechnernetze (Herr Prof. Dr. rer. nat. Uwe Heuert) Roboter in der Künstlichen Intelligenz (Herr Prof. Dr.-Ing. Karsten Hartmann) Simulation und numerische Methoden (Herr Prof. Dr. rer. nat. Hartmut Kröner) Softwareengineering (Herr Prof. Dr. rer. pol. Ronny Weinkauf) Ubiquitous Computing (Herr M.Eng. Ulrich Borchert) Verteilte Systeme (Herr Prof. Dr. rer. pol. Ronny Weinkauf) Wissensbasierte Systeme (Herr Prof. Dr.-Ing. Karsten Hartmann) Zuverlässigkeit und Qualitätssicherung (Herr Prof. Dr. rer. nat. habil. Eckhard Liebscher)
Oct. 2006 – Nov. 2009	Undergraduate Student Merseburg University of Applied Sciences, Merseburg, Germany Faculty of Engineering and Natural Sciences Bachelor of Engineering Degree Program in Mechatronics, Industrial and Physics Technology, Specialization in Mechatronics Attended and Passed Courses Aktorik - elektrische Maschinen und Antriebe (Prof. Dr.-Ing. Jörg Scheffler) AutoCAD (Dipl.-Ing. Kieser) Computeralgebra (Prof. Dr. rer. nat. Hartmut Kröner) Elektrotechnik / Elektronik I - Gleichstromgrößen und Messtechnik (Prof. Dr.-Ing. Monika Trundt) Elektrotechnik / Elektronik II - Wechselstromtechnik (Prof. Dr.-Ing. Monika Trundt) Embedded Systems (Prof. Dr.-Ing. Manfred Lohöfener) Fachsprache Englisch I (Angelika Wölfer) Fachsprache Englisch II (Angelika Wölfer) Informatik I - Algorithmen und C-Programmierung (Prof. Dr. rer. nat. Thomas Buchanan) Informatik II - Datenbanksysteme (Prof. Dr. rer. nat. Thomas Buchanan) Informatik III - Prozessdatenverarbeitung (Prof. Dr.-Ing. Rainer Winz) Fertigungstechnik (Dipl.-Ing. Heinrich Schwammel) Fertigungssysteme (Prof. Dr.-Ing. Rolf Kademann) Maschinendynamik (Prof. Dr.-Ing. Horst-Herbert Krause) Maschinenelemente / Konstruktionstechnik I - Grundlagen des technischen Zeichnens (Prof. Dr.-Ing. Bernd Zöphel) Maschinenelemente / Konstruktionstechnik II (Prof. Dr.-Ing. Bernd Zöphel) Maschinenelemente / Konstruktionstechnik III (Prof. Dr.-Ing. Bernd Zöphel) Maschinenelemente / Konstruktionstechnik IV - CAD und Konstruktionsmethodik (apl. Prof. Dr.-Ing. Dietrich Knoll) Mathematik I (Prof. Dr. rer. nat. habil. Otfried Lange) Mathematik II (Prof. Dr. rer. nat. Hartmut Kröner) Mathematik III - Funktionentheorie und Funktionaltransformation (Prof. Dr. rer. nat. Hartmut Kröner) Mechatronische Systeme I (Prof. Dr.-Ing. Manfred Lohöfener) Mechatronische Systeme II (Prof. Dr.-Ing. Manfred Lohöfener) Mechatronische Systeme III (Prof. Dr.-Ing. Manfred Lohöfener) Messtechnik / Sensorik (Prof. Dr.-Ing. Manfred Lohöfener) Qualitätssicherung und Produkthaftung (Dipl.-Ing. Heinrich Schwammel) Physik I - Experimentalphysik (Prof. Dr. rer. nat. Eike Rosenfeld) Physik II - Elektrostatik, Schwingungen und Wellen (Prof. Dr. rer. nat. Eike Rosenfeld) Projektmanagement (Prof. Dr.-Ing. Heike Mrech) Regelungstechnik (Prof. Dr.-Ing. Tatjana Lange) Steuerungs- und Automatisierungstechnik (Prof. Dr.-Ing. Peter Helm) Strömungslehre (Prof. Dr.-Ing. Martin Staiger) Technische Betriebswirtschaftslehre (Dipl.-Wirtsch.-Inform. Petra Schwerin) Technische Mechanik I - Statik (Prof. Dr.-Ing. Jörg Kirbs) Technische Mechanik II - Elastostatik (Prof. Dr.-Ing. Jörg Kirbs) Technische Mechanik III - Dynamik / Kinematik, Getriebetechnik (Prof. Dr.-Ing. Jörg Kirbs) Technische Thermodynamik (Prof. Dr.-Ing. Hans-Peter Picht) Werkstofftechnik I (Dr.-Ing. Susanne Fiedler) Werkstofftechnik II (Dr.-Ing. Susanne Fiedler) Werkzeugmaschinen und Fertigungstechnik (Prof. Dr.-Ing. Rolf Kademann)
Aug. 2003 – Jul. 2006	Student Technical High School, Merseburg, Germany Major: Electrical Engineering
Aug. 1997 – Jun. 2003	Student “Bertolt Brecht” Secondary School, Zöschen, Germany
Sep. 1993 – Jun. 1997	Student Elementary School, Wallendorf, Germany

Advanced Training

March 2021	Training “Polyspace for C/C++ Code Verification” (Certified Training), MathWorks Online Training. Instructor: Nicolas Schoonbroodt, MathWorks, France
February/March 2021	Training “C++ Programming for Embedded Systems” (Certified Training), Doulos Online Training, United Kingdom. Instructor: Des Howlett, Doulos, United Kingdom
December 2020	Training “C Programming for Embedded Systems” (Certified Training), Doulos Online Training, United Kingdom. Instructor: David Long, Doulos, United Kingdom
October 2020	Training “Legally Compliant Design of DLR Websites for Content Responsibles”, German Aerospace Center (DLR), Internal Online Training.
June 2018	Training “Requirements Management with DOORS Next Generation”, German Aerospace Center (DLR), Bremen. Instructor: Jan Jancar, Solution Director and Member of the Executive Board, Softacus GmbH, Germany
November 2017	Training “Business Management Processes”, German Aerospace Center (DLR), Internal Training for Executives, Cologne, Germany. Contents: Business Control Processes; Strategy and Key Figures; Programmatic Control; Specific Management Instruments (Innovation Management, Process Management, etc.)
November 2017	Training “Labor Law”, German Aerospace Center (DLR), Internal Training for Executives, Cologne, Germany.
September 2017	Training “Successful Acquisition of Third-Party Funding”, German Aerospace Center (DLR), Internal Training, Bremen, Germany. Instructor: Dr. rer. nat. Wilma Simoleit, Förderungsberatung Simoleit, Germany
July 2017	Training “Personnel Responsibility”, German Aerospace Center (DLR), Internal Training for Executives, Rösrath, Germany.
September 2016	Training “Leadership and Team Management”, German Aerospace Center (DLR), Internal Training for Executives, Rösrath, Germany. Instructor: Dipl.-Psych. Ulrike Wörrle, Cologne Contents: DLR Requirements Profile for Managers; Management of Groups; Tools for Efficient Leading of Meetings; Phases of Team Development; Team Building; Systematic Decision Making and Problem Solving in Teams; Conflict Management in Groups and Teams: Emergence of Conflicts, Conflict Prevention and Resolution
June 2016	Training “Peer-Reviewed Publishing”, German Aerospace Center (DLR), Internal Training for Scientific Personnel, Stuttgart, Germany. Instructor: Prof. Dr. Gordon Müller-Seitz, Dahlem Research & Consulting Group GmbH
June 2016	Training “Personnel Management Through Efficient Communication”, German Aerospace Center (DLR), Internal Training for Executives, Rösrath, Germany. Instructor: Dipl.-Psych. Ulrike Wörrle, Cologne Contents: DLR Requirements Profile for Executive Personnel; Situational Leadership Style; Leading with Goals; Appraisal Interviews; Motivation and Job Satisfaction; Basics of Communication; Providing and Receiving Feedback; Emotion Control in Conflict-Ridden Situations
May 2016	Seminar “Liability Pitfalls”, German Aerospace Center (DLR), Internal Training for Project Managers, DLR Headquarters, Cologne, Germany.
May 2016	Seminar “Export Control Laws”, German Aerospace Center (DLR), Internal Training for Project Managers, DLR Headquarters, Cologne, Germany.
March 2016	Seminar “Project Management Compact” (Certified Training), German Aerospace Center (DLR), Bad Neuenahr, Germany. Instructor: Dr. Ralf Braune, Dr. Braune + Partner Project Management, Essen Contents: Project Management Terms and Definitions, Project Initiation, Project Planning, Risks and Risk Management, Project Controlling, Leading of Project Teams, Claim Management 24 Professional Development Units according to the guidelines of the Project Management Institute (PMI) have been earned with this training.
February 2016	Seminar “Copyright Law”, German Aerospace Center (DLR), DLR Headquarters, Cologne, Germany.
November 2015	Attendance at the Space Tech Expo Europe, November 17–19, 2015, Bremen, Germany.
October 2015	Attendance at the 9th ESA Workshop on Avionics, Data, Control and Software Systems (ADCSS 2015), European Space Research and Technology Centre (ESTEC), European Space Agency (ESA) in Noordwijk, Netherlands.
June 2015	Participant in the Dialog between the Executive Board and Junior Managers as Part of the Training for Young Executives. DLR Headquarters, Cologne, Germany.
May 2015	ESA Level 2 Standardization Training Program: “Multidisciplinary Program on the Application of ESA List of Approved Standards”, ESA Internal Training, European Space Research and Technology Centre (ESTEC), European Space Agency (ESA) in Noordwijk, Netherlands. Contents: Training on Selected Disciplines of the ECSS Standards: E10: System Engineering E20: Electrical and Optical Engineering E60: Control Engineering Q60: Electrical, Electronic and Electro-Mechanical (EEE) Components
April 2015	ESA Level 1 Standardization Training Program: “Introduction to ESA Standardization System and its Implementation in the Agency's Programs and Projects”, ESA Internal Training, European Space Research and Technology Centre (ESTEC), European Space Agency (ESA) in Noordwijk, Netherlands.
March 2015	Seminar “Preventing Espionage”, DLR-Internal Training for Executive Personnel, DLR Headquarters, Cologne, Germany.
October 2014	Laboratory Head Training, German Employer's Liability Insurance Association, German Aerospace Center (DLR).
May 2014	Attendance at the 2014/May TEC-ED & TEC-SW Final Presentation Days, European Space Research and Technology Centre (ESTEC), European Space Agency (ESA) in Noordwijk, Netherlands.
March 2014	Seminar “Introduction to Patent Law”, German Aerospace Center (DLR).
January 2014	Attendance at the Workshop on ATD Experiment Flight Opportunities in the Frame of the German SHEFEX Program, European Space Research and Technology Centre (ESTEC), European Space Agency (ESA) in Noordwijk, Netherlands.
November 2013	Attendance at the 4th Astrium Space Transportation Research & Technology Days, November 28–29, 2013, Paris, France.
October 2013	Attendance at the 7th ESA Workshop on Avionics, Data, Control and Software Systems (ADCSS 2013), European Space Research and Technology Centre (ESTEC), European Space Agency (ESA) in Noordwijk, Netherlands.
May 2013	Seminar “Legal Aspects of Open Source Software”, German Aerospace Center (DLR), DLR Headquarters, Cologne, Germany.
April 2013	Seminar “Navigation and Data Fusion” (Certified Training), Technische Universität München (TUM) in Cooperation with MBDA Missile Systems, Garching, Germany. Instructors: Prof. Dr.-Ing. Florian Holzapfel TUM, Chair of the Institute of Flight System Dynamics Dr.-Ing. Johann Dambeck, MBDA Missile Systems, TUM Dipl.-Ing. Georg Herbold, MBDA Missile Systems, TUM Dipl.-Ing. Benjamin Braun, TUM Contents Geodesy Geodetic Datum: Historical and Current Earth Ellipsoids Geometrical Figure of the Earth: Cartesian, Spherical, Geodetic and (Spatial) Ellipsoidal Coordinates, Ellipsoid of Revolution, Curvatures of an Ellipsoid of Revolution, Physical Figure of the Earth: Integral Gravitation Field Equation, Differential Gravitation Field Equations, Laplace vs. Laplace-Beltrami Operator, Surface Harmonics, Earth's external Gravitational Potential Earth Gravity Model 1996 (EGM96): Introduction, Normalized EGM96 Gravitational Coefficients truncated at $n = m = 9$, WGS84 EGM96 Geoid, The Geoid as Reference Surface for Heights, Example: Deflection of the Vertical Gravity Field of an Equipotential Ellipsoid of Revolution (Level Ellipsoid): Gravity Potential Field as (Truncated) Spherical Harmonics Series Expansion, Gravity Vector and Gravity Vector Gradient Truncated After $J_2$ and $J_4$ Term, Exact Closed-Form Solution in Ellipsoidal Coordinates, Derivation of Somigliana's Formula, Exact Formula of Somigliana, Free Air Reduction of Altitudes < 30 km, Evaluation and Residuals of Normal Gravity Formula, Somigliana (Normal) Gravity Gradient in n-Frame, Evaluation of WGS84 Gravity Vector Gradient World Geodetic System 1984 (WGS84): WGS84 Datum and Refinements, Defining Parameters, Derived Geometric Constants, Derived Physical Constants Inertial Navigation Sensors Sensor Technologies History Platform Systems vs. Strapdown Systems Accelerometers: Principle, Sensor Errors, Mechanical Pendulous Accelerometer, Micro-Electromechanical Pendulous Accelerometers, Performance Overview Gyroscopes: The Sagnac Effect, Ring Laser Gyro (RLG), Fiber-Optic Gyro (FOG), Performance Overview IMU Calibration: Introduction, Models and Governing Equations for Accelerometer Sensor Errors, Accelerometer Calibration Example, Assessment of Required Calibration Lab Setup Accuracies, High-Precision Turn Table, Industrial Robot Calibration, Models and Governing Equations of Gyroscope Sensor Errors, Gyroscope Calibration Example Stationary Alignment: Leveling, Gyro Compassing, Stationary Alignment in Polar Regions, Influence on Attitude of IMU Error Propagation, IMU Classification, Tactical and Navigation Grade IMUs Inertial Navigation Algorithms Reference Frames Derivation of the Strapdown Inertial Navigation ODEs Conventional Rotation Parameters Parameterizations of the Group of Rotation Matrices Parameterized Orientation Differential Equations Strapdown Inertial Navigation ODEs for Non-Integrating IMUs Numerical Integration of Ordinary Differential Equations All-Earth Navigation: Motivation, Introduction of Local Quaternions, Alternatives to the North-Indicating n-Frame, The Free Azimuth Horizontal Wander Frame Integrating IMU Algorithms Navigation Error Propagation Stochastic Sensor Error Processes Satellite Navigation Navigation System Theory Multi-Sensor Multi-Frequency Data Fusion Integrated Navigation Systems
October 2010	Seminar “Agil Extrem: Houston, we've had a problem. — Agile Methoden im Projektmanagement am Beispiel von Apollo 13” (Certified Training), Merseburg University of Applied Sciences, Merseburg, Germany. Instructor: Lucius Bobikiewicz, MBA, Halle (Saale)
May 2010	Seminar “Eventrecht” (Certified Training) Instructor: Mandy Risch-Kerst, Lawyer (eventlawyers.de), Berlin Contents: contract and liability law, employment law, business and company law, industrial property protection, entertainment and internet law, law of GEMA, insurance law, public law, fiscal law (all in the context of public events under the legislation of the Federal Republic of Germany)

Awards and Distinctions

November 26, 2009	2009 Student Research Award of the Merseburg University of Applied Sciences (monetary award of 750.– €) Research Paper: Versuchsaufbau, Protokoll- und Softwareimplementierung zur Systemidentifikation von Reaktionsrädern des Typs RW90
September 24, 2009	Certificate of Appreciation for the Contributions as Member of the Senate by the Principal of the Merseburg University of Applied Sciences
July 2006	Distinction — Valedictorian of the 2006 Class (3rd Place)
July 2004	Distinction — Valedictorian of the 2006 Class with Specialization in Engineering
July 9, 2003	Distinction — Valedictorian of the 2003 Class (3rd Place)

Research & Development Experience

Sept. 2017 – June 2022	Cooperative Action Leading to Launcher Innovation for Stage Tossback Operation (CALLISTO) Development of a Vertical Takeoff, Vertical Landing (VTVL) reusable first stage of a space launcher, serving as technology demonstrator for future RLVs. CALLISTO is a joint project between the French National Center for Space Studies (CNES), DLR, and the Japan Aerospace Exploration Agency (JAXA). The development is carried out by a project team of ~200 engineers and scientists located at various sites across three continents. Responsibilities & Fields of Work: Hybrid Navigation System (HNS) and Vehicle On-Board Computer (OBC): work package manager; product owner (responsible for overall implementation of aforementioned systems); systems engineering; software engineering; avionics validation & verification; SiL/HiL test bench; ground support equipment
Jan. 2016 – June 2022	Reusability Flight Experiment (ReFEx) DLR-internal project for the research and development of technologies for reusable launch vehicles. The flight experiment shall demonstrate the capability to autonomously control the flight of a vehicle in hypersonic to transonic flight regimes. Responsibilities & Fields of Work: Hybrid Navigation System (HNS) and Guidance & Control Computer (GCC): work package manager and systems engineer; design of on-board computing and data handling architecture; highly reliable distributed systems design; software engineering; validation & verification; HiL test bench; ground support equipment
Feb. 2014 – July 2016	Euglena Combined Regenerative Organic-Food Production in Space (Eu:CROPIS) Astronauts must be supplied with air, water and food whilst in space. In order to recycle these vital resources over a long period of time and to make them available for several years, closed life support systems are needed. Eu:CROPIS was a biological life support system experiment to test the long-term stability and self-sustainability of a biological life support system for missions to the Moon or Mars. The satellite was launched on December 3, 2018 and was successfully operated with the AOCS working as planned. Responsibilities & Fields of Work: Attitude Control System Engineer (sensor front-end electronics, radiation test campaign)
Jan. 2013 – Dec. 2015	Sharp Edge Flight Experiment III (SHEFEX III) Third flight experiment mission within the Sharp Edge Flight Experiment (SHEFEX) program of DLR for the development of hypersonic flight and re-entry technologies. Project has been discontinued in favor of the new ReFEx project. Responsibilities & Fields of Work: Navigation System: work package manager and systems engineer, design of on-board computing and data handling architecture, highly reliable distributed systems design, software engineering
May 2012 – Dec. 2013	Simulation Model Library (SimMoLib) A simulation model library prototype for the exchange of validated, verified, and extensively documented simulation models between all DLR institutes. Responsibilities & Fields of Work: Ontology for the Linking of Simulation Models, Model Developer
May 2012 – Sept. 2023	Hybrid Simulation Platform for Space Systems (HPS) A MATLAB/Simulink-based simulation framework and library of simulation models for the simulation of AOCS and GNC systems for space applications. Developed in cooperation with the Center of Applied Space Technology and Microgravity (ZARM), Bremen, Germany. The HPS modules are the modular building blocks for GNC simulators; as of 2022, the HPS provides more than 90 interconnected modules out of the box, which are steadily used, extended, and improved throughout the DLR and ZARM projects. One major application focus of these modules are science missions with a high demand for measurement and control accuracy. Responsibilities & Fields of Work: Technical Manager, Developer

Teaching Experience

Courses

Summer Term 2010

Reliability and Quality Assurance Merseburg University of Applied Sciences, Germany Master Course, on behalf of Prof. Dr. rer. nat. habil. Eckhard Liebscher Lecture “Accelerated Life Testing” Practical Courses “Systems Reliability”

Supervised Theses

Master's Theses

• Ayoub, Samy: Development of a Power Distribution Unit Controller for the SHEFEX III Navigation System. Master of Science in Electrical Engineering. Cologne University of Applied Sciences, Cologne, Germany, July 13, 2015. (Research Advisor)
• Körner, Felix: Development of a Monitoring and Switchover System for Redundant Computers in a Fault-Tolerant Navigation System for Space Transportation Applications. Master of Science in Electronic Systems for Automotive and Aerospace Systems. Braunschweig University, Germany, December 20, 2019. (Research Advisor)
• Kwiatkowski, Norbert: Entwicklung von Test- und Verifikationsprozeduren für eine hochverfügbare Leistungsversorgungseinheit auf Basis einer Fehlermöglichkeits- und -einflussanalyse. Master of Engineering in Electrical Engineering. Jade University of Applied Sciences, Wilhelmshaven Oldenburg Elsfleth, Germany, December 22, 2015. (Research Co-Advisor)
• Reigenborn, Martín: Development and Verification of a Power Distribution Unit Controller Software for a Hybrid Navigation System. Master of Science in Space Engineering. Technische Universität Berlin, Germany, October 9, 2018. (Research Advisor)
• Schneider, Matthias Martin: Development of a Real-Time Capable Ethernet Gateway for the SHEFEX III Navigation System. Master of Science in Embedded Systems. Eindhoven University of Technology (TU/e), The Netherlands, August 7, 2015. (Research Advisor)

Bachelor's Theses

• Johannsen, Lars: Erarbeitung eines Konzeptes zur aktiven Steuerung einer hochzuverlässigen Leistungsversorgungseinheit für ein hybrides Navigationssystem. Bachelor of Engineering in Electrical Engineering. Bremen University of Applied Sciences, Bremen, Germany, July 13, 2015. (Research Advisor)
• Kwiatkowski, Norbert: Entwicklung eines Referenzdesigns einer hochverfügbaren Leistungsversorgungseinheit für das SHEFEX III-Navigationssystem. Bachelor of Engineering in Electrical Engineering. Jade University of Applied Sciences, Wilhelmshaven Oldenburg Elsfleth, Germany, January 27, 2014. (Research Co-Advisor)
• Proppe, Myrthe: Prototyp-Entwicklung einer Auswerteelektronik für Beschleunigungssensoren einer Inertialmesseinheit. Bachelor of Engineering in Electrical Engineering. Bremen University of Applied Sciences, Faculty of Electrical Engineering and Computer Science, Bremen, Germany, July 18, 2014. (Research Advisor)

Professional Affiliations

May 2007 – Dec. 2013	The Association of German Engineers (VDI) Student Member
Mar. 2011 – Dec. 2012	Deutsche Physikalische Gesellschaft e. V. (DPG) Member

Professional Service to Scientific Community

Organization of Events, Workshops, and Special Sessions

Feb. 2009 – Jun. 2009

Organizing Committee Member 2009 Whitsun Meeting. German Statistical Society (DStatG), Merseburg University and University of Halle, Germany, June 2009.

Academic Administration

Merseburg University of Applied Sciences

Member of the Senate (Oct. 2007 – Mar. 2009) Chair of the Student Council (Oct. 2007 – Sep. 2008) Member of the Faculty Board (Oct. 2008 – Mar. 2009) Faculty of Engineering and Natural Sciences Deputy Member of the Faculty Board (Oct. 2007 – Sep. 2008) Faculty of Engineering and Natural Sciences Member of the Appointments Committee (2007 – 2008) Faculty of Engineering and Natural Sciences Professor of Mechanical Engineering

Voluntary and Social Activities

Promotion of Open Source Software	Owner and Operator of the Comprehensive TeX Archive Network (CTAN) Mirror (ctan.space-pro.be) for Germany and Europe Owner and Operator of a SpamAssassin Update Server (sa-update.space-pro.be)
streetracer merseburg e. V.	Non-Profit Motorsports Association Chairman (Jan. 2006 – May 2009) Foundation Member, Secretary (2005)
Studentenclub REAKTOR e. V.	Non-Profit Students' Association Trustee, Legal Counselor (November 2, 2012 – October 7, 2021) Treasurer, Legal Representative (Aug. 2008 – Nov. 2012) Member (April 2008 – October 2021)
Wikimedia Deutschland e. V.	Local Chapter of the Wikimedia Foundation (Operator of Wikipedia) in Germany Member (2007 – 2013)

Presentations

Conference Presentations

October 23/24, 2019	70th International Astronautical Congress (IAC) Venue: Washington, D.C., United States Titles: Architectures of Hybrid Navigation Systems (HNS) for Reusable Space Transportation Systems The Hybrid Simulation Platform for Space Systems (HPS): A Modular MATLAB/Simulink-Based Simulation Library for GNC Systems Development
July 1–4, 2019	8th European Conference for Aeronautics and Space Sciences (EUCASS), Conference on “Reusable Systems for Space Access” Venue: Madrid, Spain Title: Overview of Flight Guidance, Navigation, and Control for the DLR Reusability Flight Experiment (ReFEx) Preliminary Design of the Hybrid Navigation System (HNS) for the CALLISTO RLV Demonstrator
May 8, 2014	13th International Conference on Space Operations (SpaceOps) Venue: Pasadena, California, USA Title: A Fault-Tolerant On-Board Computing and Data Handling Architecture Incorporating a Concept for Failure Detection, Isolation, and Recovery for the SHEFEX III Navigation System

Publications

Author Identifiers
ORCID: 0000-0002-8255-9451	ResearcherID: D-4186-2015	Scopus Author ID: 56176660500

Refereed Publications

Articles in Scientific Journals

• Dumont, Etienne; Ishimoto, Shinji; Tatiossian, Pascal; Klevanski, Josef; Reimann, Bodo; Ecker, Tobias; Witte, Lars; Riehmer, Johannes; Sagliano, Marco; Giagkozoglou, Sofia; Petkov, Ivaylo; Rotärmel, Waldemar; Schwarz, René; Seelbinder, David; Markgraf, Markus; Sommer, Jan; Pfau, Dennis; Martens, Hauke: CALLISTO: A Demonstrator for Reusable Launcher Key Technologies, International Symposium on Space Technology and Science, June 15–21, 2019, Fukui, Japan. In: Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan 19(1): 106–115. The Japan Society for Aeronautical and Space Sciences, January 4, 2021. ISSN 1884-0485. DOI 10.2322/tastj.19.106.

• Bauer, Waldemar; Rickmers, Peter; Kallenbach, Alexander; Stappert, Sven; Wartemann, Viola; Merrem, Clemens Hans-Joachim; Schwarz, René; Sagliano, Marco; Grundmann, Jan Thimo; Flock, Andreas; Thiele, Thomas; Kiehn, Daniel; Bierig, Andreas; Windelberg, Jens; Ksenik, Eugen; Bruns, Thorben; Ruhe, Tobias; Elsäßer, Henning: DLR Reusability Flight Experiment ReFEx. In: Acta Astronautica 168: 57–68. Elsevier, March 2020. DOI 10.1016/j.actaastro.2019.11.034.

Conference Proceedings

• Deshmukh, Meenakshi; Schwarz, René; Braukhane, Andy; Lopéz, Rosa París; Gerndt, Andreas: Model Linking to Improve Visibility and Reusability of Models during Space System Development. In: Proceedings of the 35th IEEE Aerospace Conference, March 1–8, 2014, Big Sky, Montana, USA. Institute of Electrical and Electronics Engineers (IEEE), March 2014. ISBN 978-1-4799-5582-4. DOI 10.1109/AERO.2014.6836287.

Non-Refereed Publications

Articles in Scientific Journals

• Hallmann, Marcus; Schlotterer, Markus; Heidecker, Ansgar; Sagliano, Marco; Fumenti, Frederico; Maiwald, Volker; Schwarz, René: GTOC 9: Results from the German Aerospace Center (Team DLR). In: Acta Futura (11): 47–53. Advanced Concepts Team, European Space Technology Center (ESTEC), Noordwijk, Netherlands, 2018. ISSN 2309-1940. DOI: 10.5281/zenodo.1142857.

Books

• Schwarz, René: Development of an illumination simulation software for the Moon's surface: An approach to illumination direction estimation on pictures of solid planetary surfaces with a significant number of craters. Master's Thesis, Merseburg University of Applied Sciences, German Aerospace Center (DLR). Books on Demand, Norderstedt, Germany, 2012. ISBN 978-3-8482-1628-4.
  
  Website with Supplemental Information • E-Book (PDF)

Book Chapters

• Schwarz, René; Kröner, Hartmut: Wie weit ist es von Berlin bis Tokio? Entfernungsberechnung mit Quaternionen und Geodäten. In: Hochschule Merseburg (ed.): Forschungsbericht 2011: 245–255. Hochschulverlag Merseburg, 2011. ISBN 978-3-942703-07-9. Online available at http://www.hs-merseburg.de/fileadmin/_migrated/content_uploads/FoBe_2011_HS_Merseburg_03.pdf.
  
  Preprint (PDF) • Preprint (HTML)

Conference Proceedings

• Tatiossian, Pascal; Millet-Lacombe, Laurent; Iizuka, Nobuyuki; Häseker, Janis Sebastian; Schwarz, René; Grimm, Christian: CALLISTO avionics development and Avionics Validation Facility. 33rd International Symposium on Space Technology and Science (ISTS), February 28–March 4, 2022, Oita, Japan. Paper No. 2022-g-15.

• Dumont, Etienne; Ishimoto, Shinji; Illig, Michel; Sagliano, Marco; Solari, Marco; Ecker, Tobias; Martens, Hauke; Krummen, Sven; Desmariaux, Jean; Saito, Yasuhiro; Ertl, Moritz; Klevanski, Josef; Reimann, Bodo; Woicke, Svenja; Schwarz, René; Seelbinder, David; Markgraf, Markus; Riehmer, Johannes; Braun, Benjamin; Aicher, Moritz: CALLISTO: towards reusability of a rocket stage: current status. 33rd International Symposium on Space Technology and Science (ISTS), February 28–March 4, 2022, Oita, Japan. Paper No. 2022-g-13.

• Krummen, Sven; Desmariaux, Jean; Saito, Yasuhiro; Boldt, Marcelo; Briese, Lale Evrim; Cesco, Nathalie; Chavagnac, Christophe; Cliquet-Moreno, Elisa; Dumont, Etienne; Ecker, Tobias; Eichel, Silas; Ertl, Moritz; Giagkozoglou, Sofia; Glaser, Thilo; Grimm, Christian; Illig, Michel; Ishimoto, Shinji; Klevanski, Josef; Lidon, Norbert; Mierheim, Olaf; Niccolai, Jean-François; Reershemius, Siebo; Reimann, Bodo; Riehmer, Johannes; Sagliano, Marco; Scheufler, Henning; Schneider, Anton; Schröder, Silvio; Schwarz, René; Seelbinder, David; Stief, Malte; Windelberg, Jens; Woicke, Svenja: Towards a Reusable First Stage Demonstrator: CALLISTO — Technical Progresses & Challenges. 72nd International Astronautical Congress (IAC), October 25–29, 2021, Dubai, United Arab Emirates. International Astronautical Federation (IAF). Paper No. IAC-21-D2.6.1.

• Winter, Matthias; Krüger, Hans; Fari, Stefano; Redondo Gutierrez, Jose Luis; Razgus, Bronislovas; Woicke, Svenja; Seelbinder, David; Hervieu, Calum; van Camp, Adriaen; Magalhaes Oliveira, Willem; Solari, Marco; Wenzel, Andreas; Theil, Stephan; Maass, Bolko; Sagliano, Marco; Schlotterer, Markus; Trigo, Guilherme Fragoso; Heidecker, Ansgar; Schwarz, René; Bremer, Stefanie: ALINA Moon Lander GNC — Architecture, Design and Test Results. 11th International ESA Conference on Guidance, Navigation & Control Systems, June 22–25, 2021, Virtual Event. European Space Agency (ESA).

• Schwarz, René; Solari, Marco; Razgus, Bronislovas; Bestard Körner, Matias; Braun, Benjamin; Dumke, Michael; Markgraf, Markus; Reigenborn, Martín; Sommer, Jan; Pfau, Dennis; Thiele, Thomas; Riehmer, Johannes: Architectures of Hybrid Navigation Systems (HNS) for Reusable Space Transportation Systems. 70th International Astronautical Congress (IAC), October 21–25, 2019, Washington, D.C., United States. International Astronautical Federation. Paper No. IAC-19.D2.5.3.

• Schwarz, René; Bremer, Stefanie; Seelbinder, David; List, Meike; Rievers, Benny; Kato, Takahiro; Wöske, Florian: The Hybrid Simulation Platform for Space Systems (HPS): A Modular MATLAB/Simulink-Based Simulation Library for GNC Systems Development. 70th International Astronautical Congress (IAC), October 21–25, 2019, Washington, D.C., United States. International Astronautical Federation (IAF). Paper No. IAC-19.C1.IP.5.

• Schwarz, René; Solari, Marco; Razgus, Bronislovas; Dumke, Michael; Markgraf, Markus; Bestard Körner, Matias; Pfau, Dennis; Reigenborn, Martín; Braun, Benjamin; Sommer, Jan: Preliminary Design of the Hybrid Navigation System (HNS) for the CALLISTO RLV Demonstrator. 8th European Conference for Aeronautics and Space Sciences (EUCASS), Conference on “Reusable Systems for Space Access”. July 1–4, 2019, Madrid, Spain. Paper No. 735. DOI 10.13009/EUCASS2019-735.

• Schwarz, René; Kiehn, Daniel; Trigo, Guilherme Fragoso; Razgus, Bronislovas; Wenzel, Andreas; Seelbinder, David; Sommer, Jan; Theil, Stephan; Markgraf, Markus; Dumke, Michael; Reigenborn, Martín; Bestard Körner, Matias; Solari, Marco; Braun, Benjamin; Pfau, Dennis: Overview of Flight Guidance, Navigation, and Control for the DLR Reusability Flight Experiment (ReFEx). 8th European Conference for Aeronautics and Space Sciences (EUCASS), Conference on “Reusable Systems for Space Access”. July 1–4, 2019, Madrid, Spain. Paper No. 739. DOI 10.13009/EUCASS2019-739.

• Dumont, Etienne; Ishimoto, Shinji; Tatiossian, Pascal; Klevanski, Josef; Reimann, Bodo; Ecker, Tobias; Witte, Lars; Riehmer, Johannes; Sagliano, Marco; Giagkozoglou, Sofia; Petkov, Ivaylo; Rotärmel, Waldemar; Schwarz, René; Seelbinder, David; Markgraf, Markus; Sommer, Jan; Pfau, Dennis; Martens, Hauke: CALLISTO: A Demonstrator for Reusable Launcher Key Technologies. 32nd International Symposium on Space Technology and Science (ISTS), June 15–21, 2019, Fukui, Japan.

• Sagliano, Marco; Trigo, Guilherme Fragoso; Schwarz, René: Preliminary Guidance and Navigation Design for the Upcoming DLR Reusability Flight Experiment (ReFEx). 69th International Astronautical Congress (IAC), October 1–5, 2018, Bremen, Germany. International Astronautical Federation (IAF). Paper No. IAC-18.D2.5.9.

• Rickmers, Peter; Bauer, Waldemar; Sippel, Martin; Stappert, Sven; Schwarz, René; Sagliano, Marco; Trigo, Guilherme Fragoso; Wübbels, Guido; Martens, Hauke: An Update of the Upcoming DLR Reusability Flight Experiment — ReFEx. 69th International Astronautical Congress (IAC), October 1–5, 2018, Bremen, Germany. International Astronautical Federation (IAF). Paper No. IAC-18.D2.6.1.

• Bauer, Waldemar; Rickmers, Peter; Kallenbach, Alexander; Stappert, Sven; Schwarz, René; Sagliano, Marco; Häseker, Janis S.; Flock, Andreas; Thiele, Thomas; Bierig, Andreas; Windelberg, Jens; Ksenik, Eugen: Upcoming DLR Reusability Flight Experiment. 68th International Astronautical Congress (IAC), September 25–29, 2017, Adelaide, Australia. International Astronautical Federation (IAF). Paper No. IAC-17-D2.6.1.

• Hallmann, Marcus; Schlotterer, Markus; Heidecker, Ansgar; Sagliano, Marco; Fumenti, Federico; Maiwald, Volker; Schwarz, René: GTOC 9, Multiple Space Debris Rendezvous Trajectory Design in the J2 environment. In: Proceedings of the 31st ISTS, 26th ISSFD & 8th NSAT Joint Conference, June 2017, Pasadena, Matsuyama, Japan.

• Schwarz, René; Theil, Stephan: A Fault-Tolerant On-Board Computing and Data Handling Architecture Incorporating a Concept for Failure Detection, Isolation, and Recovery for the SHEFEX III Navigation System. In: Proceedings of the 13th International Conference on Space Operations (SpaceOps), May 5–9, 2014, Pasadena, California, USA. American Institute of Aeronautics and Astronautics (AIAA), May 8, 2014. AIAA Paper No. 2014-1874. DOI 10.2514/6.2014-1874.