Senior Flight Platform Engineer - Spacecraft Software

ReOrbit; Helsinki; On-site; EUR 90,000 - 140,000; Full time

Benefits offered by this job

Lunch vouchers

Events

Occupational health care

Additional health insurance

Relocation support

Team activities

Job summary

ReOrbit seeks a Senior Flight Platform Software Engineer to advance mission critical software for UKKO, SILTA and future satellite campaigns. You will design, implement and verify flight software, lead code reviews, and mentor junior engineers in Helsinki, Finland.

Join a space-tech start‑up focused on software‑defined satellites, networking, and secure, reliable systems with a multidisciplinary team and collaborative culture.

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, Aerospace Engineering, or a related field
• Minimum of 10 years of professional experience in embedded systems, distributed systems, or mission‑critical software
• Strong proficiency in C/C++ for embedded or real‑time software, with solid software‑design fundamentals including data structures, concurrency, and debugging
• Demonstrated expertise in core software engineering practices, including system architecture, code reviews, static analysis, CI/CD pipelines, configuration management, and observability/logging
• Solid knowledge of real‑time systems, including scheduling, interrupts, concurrency, determinism, and efficient design for limited compute and memory resources
• Experience with spacecraft software, satellite operations, or aerospace systems
• Understanding of networking protocols, inter‑process communication, or distributed autonomy
• Experience with security‑focused software development for mission‑critical systems

Responsibilities

• Perform the speciation, design, implementation, build and verification of Mission Critical Flight Platform Software aligned with ReOrbit’s software‑defined satellite philosophy.
• Perform thorough code reviews and contribute to architectural and design decision‑making of software.
• Contribute and support tool and infrastructure development and the engineering process evolution of the software team.
• Support mentorship of junior engineers, enhancing technical growth and capability within the team.
• Be able to communicate effectively with systems and test teams to troubleshoot defects and accelerate software integration.

Skills

C/C++ for embedded RT

Distributed systems

Real-time scheduling

Data structures & debugging

System architecture

Code reviews & CI/CD

Observability/logging

Security-focused development

Networking / IPC

Education

Bachelor’s or Master’s degree in Computer Science, Software Engineering, Aerospace Engineering, or related field

Tools

Git

Linux

RTOS

CI/CD pipelines

Job description

ReOrbit seeks a Senior Flight Platform Software Engineer to advance mission critical software for UKKO, SILTA and future satellite campaigns. You will design, implement and verify flight software, lead code reviews, and mentor junior engineers in Helsinki, Finland.

Join a space-tech start‑up focused on software‑defined satellites, networking, and secure, reliable systems with a multidisciplinary team and collaborative culture.