Sateliot is a Barcelona-based startup in the New Space sector, becoming the first satellite telecommunications operator that will provide general and continuous connectivity to all the elements that will make up the massive Internet of Things (IoT) universe under the 5G protocol. Sateliot is the perfect complement for large telecommunications companies by providing them with the necessary infrastructure where terrestrial technologies do not arrive.

YOUR MISSION Sateliot is seeking an experienced Principal Antenna Product Engineer to lead the end‑to‑end development of an advanced antenna array for space applications. The successful candidate will take full ownership of the product lifecycle—from concept definition through design, simulation, prototyping, fabrication, testing, qualification, and flight readiness. This role requires deep expertise in antenna engineering for the space environment, including materials selection, lightweight and semi‑rigid structures, and deployable antenna systems.

The candidate will work closely with a senior mechanical engineer to ensure seamless RF‑structural integration and optimized system performance. Own the antenna system from concept to design for manufacture, qualification, testing and flight readiness. Maintain a pragmatic and goal‑oriented mindset, balancing performance, cost, schedule, risk, and manufacturability.

Design high‑performance antenna arrays (e.g., Mechanical constraints (stiffness, launch loads, vibration, deployment reliability) Manufacturability and assembly constraints Optimize radiation performance, efficiency, bandwidth, polarization, and thermal stability.



Make data‑driven decisions grounded in electromagnetic fundamentals while ensuring structural and thermal robustness.

Space

Environment & Materials Select And Qualify Materials Considering Collaborate closely with the senior mechanical engineer to co‑design RF and structural elements from early concept stages. Ensure RF performance stability under mechanical stress, thermal cycling, and deployment dynamics. Oversee prototype development, including PCB‑based RF structures, waveguide assemblies, and hybrid solutions.

Testing & Qualification Analyse test data rigorously and implement corrective design improvements. Deliver test requirements and test reports. Work closely with the senior mechanical engineer to ensure fully integrated RF‑mechanical‑thermal co‑design.

Interface with systems, thermal, manufacturing, and mission engineering teams. Master’s or PhD in Electrical Engineering, Electromagnetics, RF Engineering, or related field. ~Task oriented focused to close out actions ASAP. ~ Antenna design for space qualified systems. Hands‑on engineering attitude with attention to detail and quality.

WHAT YOU’LL FIND WHEN WORKING AT SATELIOT You will be part of one of the fastest‑growing start‑ups in Spain with global reach along getting into the challenging world of New Space & Telecommunication. Full‑time permanent contract Hybrid work model Flexible compensation package: tax benefits with ticket restaurant, transportation and kindergarten, training programs. We promote good physical and mental health, with a health insurance, fresh fruit in the office and the possibility of sharing the cost of bicycle transport or gyms.

The chance to be part of one of the most exciting and disruptive space projects in Europe #

📌 Principal Antenna Product Engineer (Cataluña)
🏢 Sateliot
📍 Cataluña