Software Engineer, Simulation and ModelingLocation: ValenciaReports to: Reports to: Laboratory Lead & Test ArchitectEmployment type: As a Software Engineer, Simulation and Modeling, you'll build the software world the satellites live in (orbits, emitters, signals, truth and scoring) so the whole team can ask "what if" and get a number back. It doesn't exist yet. You'll build it, and it will become a tool used by engineers, analysts and customer?To our customers we provide intelligence with unmatched quality, latency and revisit times, in any weather, day or night. ICEYE-built constellations serve customers in defence and intelligence, environmental monitoring, insurance and emergency management. Founded and headquartered in Finland, ICEYE operates globally with over ***
* employees across Europe, North America, the Middle East, and Asia?Your day-to-day responsibilitiesModel the constellation: orbit propagation, cluster geometry, attitude and pointing, antenna beams, access and contact windows, with spacing and timing as swept variables.
Own the truth together with the processing team: a truth ledger of every simulated emission, position and time, kept out of reach of the system under test, plus the association and scoring that turn a run into detection rate, false?Make it a platform: versioned scenarios, seeded and reproducible runs, provenance on every result, tests, CI, documentation and an interface that non?Answer real questions: capacity, revisit and performance studies for the payload, product and sales teams, and architecture trades for future generations.
Strong software engineering in Python (and ideally a compiled language): clean architecture, version control, testing,



code review, packagingExperience building a simulation or model of a physical system that others used, and validating it against measurement or real dataNumerical and scientific computing: NumPy/SciPy or equivalent, vectorisation, performance awarenessWorking knowledge of at least one of orbital mechanics and access computation, RF link budgets and propagation, or signal processingHabits that make results reproducible: seeds, configuration management, data provenanceClear written and spoken EnglishNice to haves:time and hardware?in?the?loop interfacesCloud?native deployment, containers, workflow orchestration, and data stores for large runsA simulation framework of yours that outlived your involvement in itEligibility for national security clearance (an advantage)What success looks like:6 months: a first end?to?end scenario (cluster geometry, a handful of emitters, synthetic I/Q per satellite, truth logged, a first score) is used to answer at least one real capacity or performance question.24 months: the simulation is part of the end?to?end loop with the flatsat and ground pipeline, runs in regression, and backs performance numbers we put in front of customers.
As a general scale?Your growth, wellbeing, and success are a priority, with continuous professional development, training opportunities, and a culture where collaboration is how we win.
Stay close to what's happening across the company so you can make better decisions. Create psychological safety, invite different perspectives, and build inclusive teams. We match tasks to the right owner and stay agile as priorities shift.
Have fun : What we do matters—and it should be enjoyable.

📌 Software Engineering Specialist (Valencia)
🏢 ICEYE Oy
📍 Valencia