Onboard Software Engineer - Peripheral Services

The role

You will work on the onboard software for Loft's satellites, focused on peripheral services. You will design, build and test software with a high degree of ownership, and review peer code.

What you will do

• Design, implement and refine software with high ownership, from concept through delivery
• Review code, give clear feedback, and enforce development processes, style guides and design standards
• Design and implement unit and integration tests for self-authored and peer-authored code
• Use version control to create feature branches, push code, and merge approved code into production branches
• Contribute to the onboard software architecture through design proposals and collaborative review
• Participate in reviewing and improving software development processes and design standards
• Coordinate with downstream teams on distribution and adoption of the latest releases
• Get involved in operating Loft's on-orbit fleet of satellites

Required qualifications

• 3+ years of software engineering experience
• Programming in C/C++ (C++11 or newer) and Python
• Proficiency with Git and collaborative development workflows
• Experience with continuous integration tools (GitLab-CI, Jenkins, or similar)
• Knowledge of build systems (e.g., Make, CMake)
• Understanding of distributed architecture
• Familiarity with networking protocols (e.g., UDP, TCP, IP) and POSIX standards
• Experience developing multi-threaded applications
• Previous team leader or manager role

Nice to have

• Familiarity with other programming languages, such as Go or Rust
• Experience with embedded Linux, including Yocto, device trees, systemd, and Linux on ARM platforms
• Proficiency with unit test frameworks (e.g., pytest, Googletest, Unity)
• Experience with middleware frameworks (gRPC, ZMQ / NATS, etc.)
• Experience with containerization technologies (Docker, K3S, systemd-nspawn)
• Experience with space systems and concepts

Benefits

• Equity
• Up to 35 days of paid time off (vacations and RTT) and flexible working hours
• Health and life insurance
• Lunch vouchers
• Cross-office travel opportunities between San Francisco, Colorado, and Toulouse
• Company and team off-sites and other events
• Relocation assistance to Toulouse when applicable

Before you apply

• Attach a copy of your resume in English, as it will be reviewed across Loft's offices

About the company

Loft provides governments, companies and research institutions with a simple way to deploy missions in orbit, offering end-to-end missions as a service. Founded in 2017, it has flown more than 30 missions and is growing its fleet toward 30 satellites by 2027.