> Markdown version of [/jobs/ext/3855311-hardware-development-engineer](https://www.wearedevelopers.com/jobs/ext/3855311-hardware-development-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Hardware Development Engineer - **Company:** Skydweller Aero - **Location:** Spain - **Contract:** Permanent contract - **Skills:** Altium Designer, Computer Programming, Electrical CAD, Python (Programming Language), LTspice, MATLAB, Verification and Validation (Software), Test Data, Scripting, HR Software - **Published:** October 22, 2026 - **Apply:** https://startup.jobs/hardware-development-engineer-skydweller-sl-10540555 ## About the Role * Bachelor's or Master's degree in Electrical, Electronic, Telecommunications or Industrial Engineering (or similar). * 2+ years of experience in electrical or electronic engineering. More experienced candidates are welcome. * Knowledge of electrical power systems, circuit design and wiring/harness design. * Experience with electrical CAD and simulation tools (e.g., Altium Designer, LTspice). * Experience with PCB design for embedded hardware. * Hands-on experience with lab equipment, testing and troubleshooting. * Strong problem-solving skills, curiosity and the ability to learn quickly. * Fluent English (written and spoken); Spanish is a plus. * Eligible to work in Spain. Preferred Qualifications * Experience in aerospace, UAV, automotive/EV or another regulated industry. * Knowledge of batteries, solar arrays, power electronics or high-voltage DC systems. * Familiarity with DO-160, MIL-STD-704 or similar standards. * Programming or scripting skills (Python, MATLAB/Simulink). * Experience supporting flight or field testing. ## Description * Design and develop aircraft electronic systems, including power distribution, harnesses, avionics interfaces, and solar and battery power systems. * Create electrical schematics, wiring diagrams and harness drawings, and maintain the related documentation. * Select and specify electrical components, and work with suppliers on technical requirements. * Run analog and digital simulations to evaluate circuit behavior in all operating conditions. * Lay out multi-layer printed circuit boards (PCBs). * Plan and run development and verification tests, troubleshoot issues, and analyze test data. * Support integration of electrical systems on the aircraft and on test benches. * Support ground and flight test campaigns. * Contribute to requirements, design reviews, and verification and validation activities. * Work closely with the avionics, mechanical, software and manufacturing teams in Spain and the US. * Support compliance with applicable aerospace standards (e.g., DO-160, MIL-STD-704).