Mission Planning Software Engineer
Job description
Team & Reporting Line: Imaging Operations/Mission Planning Unit, Reporting to the Image Operations Lead.
Our Mission
At constellr, we're harnessing the power of space to solve one of Earth’s greatest challenges: climate resilience & security in a changing world. Our thermal satellite constellation delivers the most accurate land surface temperature data on the market, equipping commercial players, governments, defence agencies, and global institutions with the thermal intelligence they need to make strategic decisions- from national security and infrastructure to agriculture and climate resilience.
As a fast-scaling company with offices in Brussels, Freiburg, Munich, Washington and Toulouse, our multidisciplinary team of engineers, scientists, and strategists is building the future of space-based Earth observation
Your Role
As our Mission Planning Software Engineer, you will shape the software systems that enable automated, scalable mission planning for our satellite constellation. Working at the intersection of space operations and software engineering, you will transform mission objectives and operational constraints into reliable planning systems that power daily satellite activity. You will collaborate across operations and product teams to define how missions are planned and executed at scale, supporting the evolution from manual workflows to a unified, automated platform that directly drives satellite command and imaging execution.
Key responsibilities
Build core mission planning services and algorithms that power mission planning applications for a growing satellite constellation
Shape the architecture and design of mission planning systems to ensure scalability, reliability, and long-term operability
Run, monitor, and maintain mission planning systems in live production environments
Define engineering standards for reliability, CI/CD, infrastructure-as-code, observability, safety, and operational compliance
Collaborate across Flight Operations, Flight Dynamics, Payload, Satellite Operations, and Product leadership to turn mission needs into technical direction and system design
Drive adoption of CI/CD pipelines, infrastructure-as-code, and robust deployment practices across mission-critical systems
Translate mission requests into executable satellite telecommands, including interaction with the telecommand database
Align mission plans with onboard scheduling and execution constraints to ensure feasible satellite operations
Job requirements
About you
Required:
Bachelor’s or Master’s degree in Aerospace Engineering, Computer Science, Physics, or a related technical field
3-5+ years of experience in software engineering, space systems engineering, satellite operations software, or ground segment development
Strong experience building production-grade distributed systems, backend services, or mission-critical software
Experience designing or working with mission planning, scheduling, automation, or orchestration systems in complex operational environments
Strong software engineering skills in Python, Java, SQL, and containerised application development.
Proven experience developing reliable, scalable software for production environments with a strong focus on correctness, robustness, and maintainability
Familiarity with Linux environments and operating services in production (deployment, debugging, performance tuning)
Experience with infrastructure components such as AWS, CI/CD pipelines, containerised deployments, and service orchestration
Ability to design and debug complex systems involving multiple services, data flows, and external operational dependencies
Strong communication skills and ability to collaborate effectively with Imaging Operations, Flight Operations, product and engineering teams
High level of ownership, autonomy, and attention to detail in mission- or safety-critical contexts
Comfort working in a fast-paced environment where systems evolve quickly, and operational reliability is essential
Nice to Have:
Prior exposure to satellite operations environments or ground segment toolchains; particularly satellite tasking, commanding, and on-board schedule (plan) generation.
Experience with real-time systems or high-reliability distributed systems.
Experience with data systems and observability tooling (e.g., PostgreSQL, time-series databases, Grafana, logging/monitoring stacks).
Experience designing and consuming RESTful APIs, and Django for server-side web application development.
Hands-on experience with infrastructure as code (Terraform, Terramate) and automated configuration management using Ansible.
Ability to build full-stack web applications with Next.js, JavaScript, HTML, and CSS.
Experience managing cloud infrastructure on AWS.
Theoretical and applied background in AI planning and optimisation, including PDDL formulation, constraint satisfaction, Markov decision processes, and combinatorial optimisation algorithms.
Practical experience integrating automated planning and optimisation algorithms into real-world software systems.
Experience in event-driven software architecture design and implementation.
Hands-on experience with container orchestration using Kubernetes.
Why join constellr?
- 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.
- 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.
- Broad Interdisciplinary Exposure: Accelerate your professional growth by collaborating daily with a diverse, international cohort of astrophysicists, software developers, and defence-system engineers.
- 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.
- 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.