Back-End IT Specialist

Job description

Team & Reporting Line: IT Team, reporting to the Director - IT

Our Mission 

At constellr, we use thermal intelligence from space to understand what is happening on Earth - where, when and at scale. Our satellite constellation delivers high-resolution land surface temperature data, giving governments, defence organisations, commercial operators and global institutions the intelligence they need to monitor change, assess risk and make better-informed decisions.

From national security and critical infrastructure to agriculture and climate resilience, constellr turns temperature into actionable intelligence for a changing world.

Your Role

You'll design and build the systems and integrations that connect constellr's core business platforms. Your work will keep data flowing reliably between our ERP, CRM, HRIS and other systems, giving the business a solid foundation as we scale.

Key responsibilities

• Develop, maintain and improve our backend systems and APIs
• Build and support integrations across our ERP, CRM, HRIS and other business systems
• Maintain our data pipelines and make sure data stays accurate and consistent across every system
• Troubleshoot and resolve backend system issues as they arise
• Clearly document our system architecture and the logic behind each integration

Job requirements

About you 

Required: 

• Hands-on experience in backend development and systems integration
• Familiarity with APIs and common business systems such as ERP, CRM and HRIS
• Strong problem-solving skills and a methodical approach to debugging
• Fluency in English

Hice to Have:

• German language skills
• Experience integrating platforms such as Personio, SAP, Salesforce or similar
• Experience with database administration
• Experience working in a regulated or security-conscious environment

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.