<h2 class="sc-1npqnwg-4 sc-1npqnwg-5 sc-1uwf3m5-0 ghXWGq custom-css-style-job-description">Job description</h2> Team & Reporting Line: Mission and Space Segment - Reporting to Lead Satellite Systems Our Mission  At constellr, we use thermal intelligence from space to understand what is happening on Earth - where, when and at scale. Our satellite constellation delivers high-resolution land surface temperature data, giving governments, defence organisations, commercial operators and global institutions the intelligence they need to monitor change, assess risk and make better-informed decisions. From national security and critical infrastructure to agriculture and climate resilience, constellr turns temperature into actionable intelligence for a changing world. Your Role You will join the constellr Mission & Space Segment team, playing a key role in shaping the onboard software that powers our satellite constellation across its full lifecycle — from early design through to in-orbit operations.  This is a hands-on, high-impact role where you will help define how our satellites compute, behave, and evolve in space. Your work will directly influence the reliability, performance, and long-term success of constellr’s mission.  You’ll collaborate closely across the business — working day-to-day with internal engineering teams, Product Assurance, Project Management, and Operations, as well as external suppliers. Together, you will help turn mission concepts into robust, flight-ready software systems.  In addition to software development, you will contribute to system-level design decisions, support procurement and supplier technical alignment, and help ensure our onboard software is continuously validated, improved, and ready for operation in orbit.  Key responsibilities <ul data-pm-slice="3 3 []"> <li> Design, develop, test, and maintain high-reliability onboard flight software in compliance with product assurance and safety standards. </li> <li> Collaborate with cross-functional stakeholders to define, refine, and manage software requirements across all onboard satellite systems. </li> <li> Contribute to the definition and evolution of onboard software architecture, supporting both laboratory-based validation environments and in-orbit operational systems. </li> <li> Develop and implement robust Fault Detection, Isolation and Recovery (FDIR) strategies to ensure resilience and autonomy of onboard systems. </li> <li> Support the planning, coordination, and delivery of new software features and upgrades, working closely with external suppliers and development partners. </li> <li> Champion strong configuration management practices across all onboard software components to ensure traceability, integrity, and control. </li> <li> Define and drive verification and validation strategies, ensuring comprehensive testing and high confidence in flight software performance. </li> <li> Participate in end-to-end verification and validation activities for onboard systems and flight software. </li> <li> Ensure all software—whether developed in-house or delivered by suppliers—meets stringent technical, safety, and quality requirements. </li> <li> Support investigation and resolution of software anomalies and non-conformance issues, contributing to continuous improvement and system reliability. </li> <li> Help define and enhance the in-orbit software update process for satellites within the constellation fleet. </li> <li> Contribute to integration and testing activities using Flatsat environments and other ground-based simulation and validation platforms. </li> </ul>   <h2 class="sc-1npqnwg-4 sc-1npqnwg-5 sc-1uwf3m5-0 sc-1uwf3m5-1 kIUTHT custom-css-style-job-requirements">Job requirements</h2> About you  Required:  We’re looking for someone with strong engineering fundamentals and real-world experience building software for complex, safety-critical or aerospace systems.  <ul class="BulletListStyle1 SCXW155681511 BCX0"> <li> Degree in Aerospace Engineering, Software Engineering, Computer Science, or a related field   </li> </ul> <ul class="BulletListStyle1 SCXW155681511 BCX0"> <li> Strong understanding of systems engineering principles and full software development lifecycles in complex technical environments   </li> </ul> <ul class="BulletListStyle1 SCXW155681511 BCX0"> <li> At least 4 years of experience in software development or software assurance, ideally in aerospace or other safety-critical domains   </li> </ul> <ul class="BulletListStyle1 SCXW155681511 BCX0"> <li> Experience with embedded software development, including familiarity with low-level hardware interfaces (e.g., CAN, Camera Link, or similar)   </li> </ul> <ul class="BulletListStyle1 SCXW155681511 BCX0"> <li> Exposure to FPGA-based systems and familiarity with relevant ECSS standards (especially Q-ST-60-02)   </li> </ul> <ul class="BulletListStyle1 SCXW155681511 BCX0"> <li> Solid grounding in software engineering principles, development methodologies, and lifecycle management tools   </li> </ul> <ul class="BulletListStyle1 SCXW155681511 BCX0"> <li> Experience with software testing frameworks, tools, and processes   </li> </ul> <ul class="BulletListStyle1 SCXW155681511 BCX0"> <li> Strong practical experience using Git and working within CI/CD pipelines   </li> </ul> <ul class="BulletListStyle1 SCXW155681511 BCX0"> <li> Proficiency in Python and C++  </li> </ul>   Nice to Have:  These skills would further strengthen your profile, but are not essential:  <ul class="BulletListStyle1 SCXW35283398 BCX0"> <li> Familiarity with ECSS standards and handbooks, including:   <ul class="BulletListStyle2 SCXW121260380 BCX0"> <li> ECSS-E-ST-40C   </li> </ul> <ul class="BulletListStyle2 SCXW121260380 BCX0"> <li> ECSS-E-HB-40A   </li> </ul> <ul class="BulletListStyle2 SCXW121260380 BCX0"> <li> ECSS-E-ST-20-04C   </li> </ul> <ul class="BulletListStyle2 SCXW121260380 BCX0"> <li> ECSS-Q-ST-80C   </li> </ul> <ul class="BulletListStyle2 SCXW121260380 BCX0"> <li> ECSS-Q-ST-60-03C   </li> </ul> <ul class="BulletListStyle2 SCXW121260380 BCX0"> <li> ECSS-Q-ST-30-02C   </li> </ul> <ul class="BulletListStyle2 SCXW121260380 BCX0"> <li> ECSS-E-ST-70-11C   </li> </ul> <ul class="BulletListStyle2 SCXW121260380 BCX0"> <li> ECSS-E-ST-70-41C   </li> </ul> <ul class="BulletListStyle2 SCXW121260380 BCX0"> <li> ECSS-E-HB-40-02A   </li> </ul> </li> </ul> <ul class="BulletListStyle1 SCXW35283398 BCX0"> <li> Experience with space communication protocols such as CCSDS and CSP   </li> </ul> <ul class="BulletListStyle1 SCXW35283398 BCX0"> <li> Strong analytical and structured problem-solving skills   </li> </ul> <ul class="BulletListStyle1 SCXW35283398 BCX0"> <li> High attention to detail and a strong quality mindset   </li> </ul> <ul class="BulletListStyle1 SCXW35283398 BCX0"> <li> Confidence in identifying inconsistencies and improving technical standards   </li> </ul> <ul class="BulletListStyle1 SCXW35283398 BCX0"> <li> Clear communication skills and ability to work across multidisciplinary teams  </li> </ul> Why join constellr? <ul> <li>High-Impact National Security Mission: Be part of an ambitious mission to launch the world’s first commercial thermal infrared constellation, delivering sovereign-grade "behavioural" intelligence from space to close critical blind spots for defence, intelligence, and maritime surveillance agencies.</li> <li>Fast-Paced "New Space" Innovation: Work at the leading edge of a rapidly evolving defence sector. By leveraging modern, agile New Space methodologies, you will help design, build, and deploy dual-use thermal payloads into operational orbit at a speed and scale that traditional aerospace models simply cannot match.</li> <li>Broad Interdisciplinary Exposure: Accelerate your professional growth by collaborating daily with a diverse, international cohort of astrophysicists, software developers, and defence-system engineers.</li> <li>Inclusive & Scientific Culture: Join a high-trust team deeply committed to diversity, inclusion, and scientific excellence, where academic curiosity is paired with high autonomy and a flat hierarchy.</li> <li>Financial Upside & Well-being: Benefit from a Virtual Share Option Plan (VSOP) for permanent employees, giving you a true stake in the company's growth, alongside highly flexible hybrid working models.</li> </ul>

Embedded Flight Software Engineer @ Constellrgmbh

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