Embedded Flight Software Engineer

Job description

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

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Design, develop, test, and maintain high-reliability onboard flight software in compliance with product assurance and safety standards.

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Collaborate with cross-functional stakeholders to define, refine, and manage software requirements across all onboard satellite systems.

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Contribute to the definition and evolution of onboard software architecture, supporting both laboratory-based validation environments and in-orbit operational systems.

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Develop and implement robust Fault Detection, Isolation and Recovery (FDIR) strategies to ensure resilience and autonomy of onboard systems.

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Support the planning, coordination, and delivery of new software features and upgrades, working closely with external suppliers and development partners.

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Champion strong configuration management practices across all onboard software components to ensure traceability, integrity, and control.

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Define and drive verification and validation strategies, ensuring comprehensive testing and high confidence in flight software performance.

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Participate in end-to-end verification and validation activities for onboard systems and flight software.

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Ensure all software—whether developed in-house or delivered by suppliers—meets stringent technical, safety, and quality requirements.

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Support investigation and resolution of software anomalies and non-conformance issues, contributing to continuous improvement and system reliability.

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Help define and enhance the in-orbit software update process for satellites within the constellation fleet.

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Contribute to integration and testing activities using Flatsat environments and other ground-based simulation and validation platforms.

Job requirements

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.

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Degree in Aerospace Engineering, Software Engineering, Computer Science, or a related field

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Strong understanding of systems engineering principles and full software development lifecycles in complex technical environments

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At least 4 years of experience in software development or software assurance, ideally in aerospace or other safety-critical domains

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Experience with embedded software development, including familiarity with low-level hardware interfaces (e.g., CAN, Camera Link, or similar)

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Exposure to FPGA-based systems and familiarity with relevant ECSS standards (especially Q-ST-60-02)

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Solid grounding in software engineering principles, development methodologies, and lifecycle management tools

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Experience with software testing frameworks, tools, and processes

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Strong practical experience using Git and working within CI/CD pipelines

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Proficiency in Python and C++

Nice to Have :

These skills would further strengthen your profile, but are not essential:

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Familiarity with ECSS standards and handbooks, including:

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