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# Backend Software Engineer - Mission Planning Strategy

- **Company:** Loft Orbital
- **Location:** Toulouse, France
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Software Applications, Application Performance Management, C++ (Programming Language), Distributed Systems, Django Web Framework, Python (Programming Language), Software Engineering, High Performance Computing, Parallel Computation, Backend, Multi-objective Optimization, Build Tools, Graphql, Vectorization
- **Published:** November 10, 2026
- **Apply:** https://www.welcometothejungle.com/en/companies/loft-orbital/jobs/backend-software-engineer-mission-planning-strategy_occitanie

## About the Role

We're looking for someone with a solid background in software engineering, ideally with a proven track record of building systems from scratch and solving complex, system-level problems. The ideal candidate can operate independently in a fast-paced environment and challenge requirements., * Bachelor's degree in Software Engineering, Physics/Astrodynamics, Mathematics or a related field

 * 2+ years of experience with designing and developing software libraries and backend services, preferably in Python
 * Proven track record of operating independently and solving complex problems
 * Experience with system design
 * Excellent communication skills, both written and verbal, for technical and non-technical audiences

 * Master's degree in Software Engineering, Physics/Astrodynamics, Mathematics or a related field
 * 5+ years of experience designing and developing software libraries and backend services, preferably in Python
 * Proficiency with Django/GraphQL stacks
 * Hands-on experience operating spacecraft
 * Experience with C++ / high-performance Python (vectorization, JIT compilation like Numba, GPU parallelization)
 * Demonstrated practical experience building high-performance backend software applications and/or libraries
 * Specialization in one of the following disciplines:
 + Integer/linear/multi-objective optimization or other Operations Research style problems
 + Back-end/API performance optimization
 + Distributed systems
 + Security
 + Earth observation tasking
 + High-performance computing

## Description

* Develop and improve a new software product that manages customer orders across a multi-sensor constellation of satellites
 * Interface with teams to help design the customer-facing interfaces and the back-end pipeline that goes from a plan to onboard execution
 * Build tools and services that help sales and operators understand current and future capacity, operational risks and opportunities for growth
 * Solve complex multi-objective optimization problems that maximize collection capacity, balancing various (conflicting) customer constraints, and help define what "optimal" means
 * Design systems of systems: decompose complex problems into well-bounded services with clear interfaces, and reason about how they interact, fail, and scale together