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Flight Software Engineer
Hybrid in Barcelona·Full-time·Added 25 days ago
Overview
Job details
Full-time hours
Per the ad.
Hybrid
Only from certain places, per the ad: “Based in Barcelona or willing to relocate: this is a hybrid role with regular on-site presence at our Barcelona HQ”
A relocation package
Help with the move, per the ad.
Requirements
Have the right to work in Spain
Sateliot doesn't mention sponsorship in the ad.
Work in English
English is required, per the ad.
Be near Barcelona for hybrid days
A relocation package offered.
Have 5+ years of experience
Mid-level role.
Pay & benefits
What you'll get
Real impact on one of Europe's most ambitious space projects.
Growth: we cover 50% of courses or master's degrees (up to 5% of your salary), plus Spanish and Catalan classes.
Health & balance: 50% on private health insurance and Urban Sports Club, a flexible schedule, and hybrid work, we focus on results, not hours.
Flexible Compensation: flexible compensation through Cobee (meal, transport, kindergarten).
A truly global team: 20+ nationalities building something genuinely new - and genuinely nice to work with. Great vibes, real teamwork.
A real welcome: a dedicated buddy from day one.
Life outside work: we organize leisure and sports activities both during and outside working hours - because great teams connect beyond the screen.
Catering: if you don't have time to cook, we partner with a catering company so a freshmeal is sorted, no need to think about it.
Parking: on-site parking at the office, with Sateliot covering 50% of the cost - plus free bike parking if you prefer to pedal in.
Requirements
What we're looking for
5+ years developing embedded software in C or C++ for resource-constrained targets.
Hands-on development on real-time operating system (FreeRTOS, RTEMS, VxWorks or equivalent).
Hands-on development on data interfaces used in satellite systems (SpaceWire, CAN Bus, RS-422, RS-485, Ethernet, MIL-STD-1553).
Demonstrated ownership of embedded software verification: authored unit and integration test suites and executed them on target hardware.
Nice to have
Python or other modern scripting languages, applied to test automation and tooling.
Familiarity with ECSS and CCSDS standards.
Experience developing software for aerospace or safety-critical systems.
Experience with CI/CD for embedded systems.
Experience with Linux, Git and modern software development workflows.
Experience running FlatSat and hardware-in-the-loop test campaigns.
Experience working in a cleanroom environment, or willingness to.
Previous involvement in satellite AIT/AIV, commissioning, or in-orbit operations.
The role
Sateliot is a Barcelona-based satellite company with one goal: connect everything, everywhere. Founded in 2018, we've built the first satellite constellation that lets standard commercial devices communicate directly from space. Our technology bridges the gaps that terrestrial networks will never reach, bringing affordable and secure connectivity to industries, governments, and communities across the planet.
What you'll do
Own the development of the on-board flight software for the platform, through to a flight-ready release.
Own its verification and validation: define and run the unit, integration and system-level test campaigns that produce the acceptance evidence for each release.
Deliver software that is robust and reliable in the space environment.
Own the integration of the on-board software with the satellite subsystems, interfaces and overall system architecture, working closely with the Hardware, Systems and AIT teams.
Resolve issues across software, hardware, interfaces and communication protocols, from the bench and AIT campaigns through to in-orbit operations.
Additional requirements
Based in Barcelona or willing to relocate: this is a hybrid role with regular on-site presence at our Barcelona HQ, where the hardware benches and FlatSat are.
Availability for occasional travel to external test campaigns, and for extended hours around launch and in-orbit commissioning windows.
About Sateliot
Sateliot is a Barcelona-based company operating in the space tech sector, specializing in low-Earth orbit (LEO) satellite connectivity for the Internet of Things (IoT). The company builds and operates a constellation of small satellites that provide global, continuous connectivity for devices in remote areas where terrestrial networks are unavailable, effectively creating a 'space-based' telecom operator. Sateliot's scale is that of a growth-stage startup, with a workforce of around 100 employees, and it has secured significant funding rounds to deploy its satellite constellation.
Sateliot's headquarters and main operations are in Barcelona, Spain, which is also the hub for its engineering, product, and business teams. The company's work culture is that of a fast-moving, deep-tech startup, with a strong emphasis on R&D and innovation. For international professionals, Sateliot offers a compelling opportunity to work on cutting-edge space technology in a European startup environment, with roles spanning from software and firmware engineering to AI and project management. The company is actively hiring for a variety of technical and non-technical positions, making it an accessible entry point for international talent looking to enter the space industry in Spain.
- Industry
- Space Tech
- Founded
- 2019
- Employees
- 50–200
- Headquarters
- Barcelona, Spain
- In Spain
- Barcelona
- Website
- sateliot.com
Good to know if you are moving
- Barcelona is the company's global HQ, so most roles are based there, offering a chance to live in a major Mediterranean tech hub.
- The company works in English, making it accessible for international professionals who do not speak Spanish.
- Sateliot is a deep-tech startup, so roles involve hands-on work on satellite communications, firmware, and AI, offering strong career development in a niche industry.
- The company has raised significant funding, indicating a stable runway and growth potential for early employees.
- Spain's space sector is emerging, and Sateliot is one of its most prominent startups, offering a unique opportunity to be in on the ground floor.
In their own words
About the company & team
The Mission and Systems Engineering team is responsible for the development, integration and validation of the satellite's core avionics and on-board software, ensuring reliable operation across all spacecraft subsystems.
As Flight Software Engineer, you'll own the On-Board Software (OBSW) for Sateliot's satellites - from today's baseline to the next generation - developing, verifying and validating it, and supporting the platform through integration campaigns and in orbit, working closely with the Systems, Hardware, AIT and Operations teams.
We lead with humility, move fast, and take ownership. We collaborate without ego and measure ourselves by real impact, not titles or hierarchy. We hire people who already live these values.
Additional information
Learn more: https://sateliot.space/
Sateliot is an Equal Opportunity Employer. Employment decisions are based on merit, qualifications, and business needs, without discrimination on the basis of any legally protected characteristic.
Location
Sateliot · Barcelona
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