Your mission

You will be the technical owner of our satellite platform- the person who turns mission needs into a buildable, testable and reliable system, and who is not afraid to go hands-on when reality hits hardware.

Own the platform technical direction: define and drive the system architecture, requirements, interfaces and budgets to ensure a coherent end-to-end platform.
Make the right engineering calls: lead trade-offs across mass, power, thermal, data, RF and reliability to converge on a design the team can actually deliver.
Bring systems to the lab: define the verification approach and actively support AIT and test campaigns (planning, procedures, acceptance criteria, reports).
Be the “go-to” technical problem solver: troubleshoot anomalies, unblock the team, and push issues to closure with pragmatic engineering judgement.
Connect specialists into one system: align subsystem/domain experts across departments, ensuring interfaces, assumptions and decisions are consistent and documented.
Enable execution with structure: work with a Project Manager who supports planning and delivery tracking, so you can focus on technical leadership and hands-on execution.

On-site role: work from our facilities in Porto do Molle (Nigrán, Spain), close to the hardware, the lab and the engineering team.

Your profile

Engineering degree in Aerospace / Industrial / Telecommunications / Electronics (or similar).
7+ years in space systems engineering, with participation in flight projects.
Proven hands-on experience in system/subsystem integration and verification (AIT).
Strong background in:

Requirements engineering & traceability

System architecture & interface management (ICDs)

V&V / test logic (procedures, reports, anomaly tracking)
Risk & reliability methods and engineering margins
Space standards (ECSS or equivalent)
Comfortable working across structures, avionics, ADCS, thermal, propulsion, SW/FDIR and operations.
Mindset/skills: technical leadership, autonomy, clear communication, prioritization, ability to move from high-level architecture to detailed problem solving.

Nice to have

MBSE / SysML and architecture tools.
Exposure to EGSE/MGSE, TVAC/vibration, EMC/EMI campaigns.
Experience with avionics/electrical interfaces, harnessing, C&DH, or on-board SW verification.
Strong configuration/documentation discipline (baselines, change control, review packages).

Why us?

This is a place for people who want to push boundaries, challenge conventions, and work on problems that have never been solved before. We operate at the intersection of cutting-edge physics, aerospace engineering, and real-world impact- where your work doesn’t stay on paper, it flies.

What makes us different:

Deep-tech challenges at the frontier: We’re tackling problems that only a handful of teams in the world are attempting. This means high intellectual rigor, constant learning, and the opportunity to work alongside exceptional engineers and scientists.

Top-tier talent, low ego culture: We’re building a team of ambitious, high-performing people who care deeply about what they do- but who also value collaboration, humility, and clarity of thinking.

A company on a mission, not just a roadmap: Kreios is not optimizing an existing solution- we are creating a new category in space propulsion. Joining now means shaping the technology, the culture, and the future of the company.

Growth that matches your ambition: As we scale, so will your scope. This is the right place if you want your career trajectory to be as bold as the problems you’re solving.