Senior Software Engineer

Celestia Antwerp BV is active in the space sector enabling customers to fulfill their needs when it comes to Satellite Integration with products ranging from Ground Station Products to Test Systems.

The Senior Software Engineer will join the department in charge of the development of satellite communication products. These include equipment covering a wide span of products such as high-speed data receivers used in scientific missions, telecommand and telemetry baseband modems, RF digitizers, RF frequency converters and many others.

• Actively contribute to the development of real‑time software applications, including Linux kernel device driver, CCSDS communication protocol stack, Monitoring & Control agent, Web‑GUI…
• Play a key role in the software architectural design activities, finding synergies amongst products.
• Participate in conferences and sometimes present technical achievements.

• Master’s degree in software engineering or equivalent through experience.
• Strong C / C++ development skills on Linux are mandatory.
• Proven experience with developing high‑performance multi‑threaded “real time” software applications.
• Solid understanding of Linux systems programming (POSIX threads, synchronization mechanisms, shared memory, IPC, process scheduling).
• Experience with high‑speed data transfer (PCIe, DMA, DPDK) is a strong asset.
• Experience with containers and deployment technologies (Docker, Kubernetes) is a plus.
• Ability to write clear technical documentation and interface specifications.
• Highly motivated, team player, dynamic, creative, sense of ownership and commitment.
• Fluent in English is mandatory.

A professional and stimulating working environment in the space sector. We also offer an attractive remuneration with many fringe benefits. If interested, please send your motivation letter and your resume to

• Great team of smart people, in a friendly and open culture
• No wasted time in enterprise processes, real responsibilities and autonomy
• Expand your knowledge of various business industries
• Create content that will help our users on a daily basis
• Real responsibilities and challenges in a fast evolving company

Each employee has a chance to see the impact of their work. You can make a real contribution to the success of the company. Several activities are often organized all over the year, such as weekly sports sessions, team building events, monthly drinks, and much more.

A full-time position.
Attractive salary package.

12 days per year, including 6 of your choice.

Play any sport with colleagues. The bill is covered.