The Electronics team is where the magic happens - from power systems and flight computers to comms boards and payload interfaces, they make sure every mission succeeds. It’s creative, hands-on, and mission-critical work solving tricky problems, testing every circuit, and making sure our satellites are ready to thrive in the toughest environment of all: Space.

What You'll Be Doing

We're looking for a Senior Electronics Engineer to take on the technical lead of the Embedded side of the Electronics Team. You will be responsible for the design & development of the On-Board Data Handling (OBDH) system of our satellite platform. Beyond technical leadership, you will be responsible for growing the Embedded team, mentoring junior engineers, and delegating tasks to manage product development across multiple projects.

This is a hands-on, impactful role where you'll collaborate across disciplines to realise robust, high-performance electronics destined for orbit. You’ll be at the heart of the full electronics lifecycle and in a position to steer the technical direction of the team to realise Open Cosmos’ vision.

As a Senior member of the Electronics Team, you will:

• Provide hands-on technical oversight
• Lead in PCB design and schematic capture for embedded, mixed signal, high-speed data designs
• Help define & execute test procedures for mixed-signal designs
• Leading debugging & investigations on flight hardware
• Maintain and improve team processes, drive continual improvement
• Define design development roadmaps that are in line with company strategy
• Working with the Electronics Team Lead to grow the Embedded team and mentor junior engineers
• Working cross-disciplinary with Power Electronics & Software Teams

What You’ll Bring

• Deep understanding of embedded systems design, ideally within aerospace, defence, or other safety-critical environments.
• Skilled in PCB design and schematic capture for mixed-signal, high-speed data, and embedded systems (Altium or similar).
• Strong grasp of microcontrollers, processors, and digital communication protocols (SPI, I2C, UART, CAN, SpaceWire, etc.).
• Confident in board bring-up, testing, and debugging using lab tools such as oscilloscopes, logic analysers, and JTAG.
• Solid understanding of firmware integration and software-hardware interaction, working closely with cross-functional teams.
• A hands-on problem solver who thrives on turning complex challenges into elegant, reliable solutions.
• Genuine passion for innovation and for building space-ready electronics that push boundaries.

For this role you can be based in any of our locations:

• Barcelona, Spain
• Porto, Portugal
• Athens, Greece

To apply, you must have the legal right to work in your chosen location.

Why Open Cosmos?

• Work at the cutting edge of space technology with customers around the globe.
• A mission-driven company making space accessible to help solve real-world challenges.
• A diverse, ambitious, and supportive team.