Software Developer

Who we are and what we do
NorthStar is a global leader in space-based data and analytics, specializing in Space Situational Awareness (SSA) and Space Domain Awareness (SDA) for government and commercial clients. Operating across North America, Europe, and allied markets, NorthStar delivers advanced space surveillance and analytics capabilities that support national security, operational resilience, and the safe and sustainable use of space. With a truly global footprint, NorthStar delivers first-in-class space surveillance capabilities, validated by leading defense agencies such as DARPA, and directly supporting the security, resilience, and sustainability objectives of NATO, Canada, the US, the EU, and allied partners.
To support the growth of our Luxembourg office, we are looking for a Software Developer.
Who you'll work with
The Luxembourg team is responsible for building customer facing applications, leveraging space and terrestrial data generated by NorthStar’s satellite-based sensors or from its third-party partners. The team is composed of experts specializing in orbital dynamics, software development, and artificial intelligence.
We are developing a new set of unique SSA analytical tools that exploit our data to help space operators execute their missions more safely and efficiently. We work closely with the Space Intelligence and Information (Si2) team based in Montreal, which is dedicated to developing innovative solutions for monitoring the space environment using multiple sources of observations and geospatial data.
What you will do
We are counting on you to:
Contribute to development of NorthStar SSA software from design to production.
Build and deploy workflows for automated and on-demand data processing.
Participate in design and architecture sessions, perform code reviews, and verify the quality of our tools in collaboration with NorthStar’s software and astrodynamics experts.
Create and maintain technical documentation for our products (APIs, Services, etc.).
Help us improve our way of working and contribute to a culture of continuous learning.
What you bring to the table
An undergraduate degree in computer science, software engineering, mathematics, physics, or similar. A graduate degree is preferred.
At least 5 years of experience in a professional software development role.
Experience using different development languages and tools, including Java, to build production-grade software.
Passion and aptitude for solving complex problems using machine learning, AI, and algorithmic methods.
Open and honest communication, and a passion for problem-solving and taking on new challenges.
A sense of pride and responsibility for delivering high-quality work in the multi-disciplinary space domain.
Professional experience and openness to responsibly using generative AI tools, such as Claude Code, for software development.
Experience in any or all of the following: physics-driven domains, deep learning, big data, frontend development, DevOps.
Legal authorization to work in Luxembourg at the time of application.
Below are some of the technologies we use. Related experience is appreciated, but we expect to grow your skills together with the team:
Orekit for orbital dynamics.
Temporal.io for workflow orchestration.
PostgreSQL and other relational and NoSQL database technologies.
CI/CD technologies like Gradle, Docker, Kubernetes, and Gitlab CI.
What you can expect
To contribute to a company whose mission is to protect the sustainability of our planet and its critical orbits in Space.
To work with a smart, supportive, and highly collaborative team of world-class experts.
Opportunities for career growth while working on state-of-the-art, high-visibility projects.
Competitive compensation with flexible working conditions.
A bright and modern office within walking distance of the historic city center and the central train station.

Employment type
Permanent (Full-Time)

Work arrangement
No