Navigation Hardware Engineer | AR5

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Location: 100% on-site in Caldas da Rainha Experience: 4+ Years You will be responsible for ensuring that the "nervous system" of the AR5 — from IMUs and GNSS/RTK to LiDAR and Optical Flow — delivers high-fidelity data to the autopilot, free from noise, vibration, or electromagnetic interference. What You'll Do (Product Focus) - Sensor Research & Selection: Lead the benchmarking of state-of-the-art sensors, balancing extreme performance with SWaP (Size, Weight, and Power) constraints. Sensor Research & Selection: Lead the benchmarking of state-of-the-art sensors, balancing extreme performance with SWaP (Size, Weight, and Power) constraints. - Hardware Design & Physical Integration: Design electronic and mechanical integration solutions, with a strong focus on signal integrity, vibration isolation, and EMI/EMC shielding. Hardware Design & Physical Integration: Design electronic and mechanical integration solutions, with a strong focus on signal integrity, vibration isolation, and EMI/EMC shielding. - Embedded Development: Develop drivers and firmware (C/C++) to interface sensors via aeronautical protocols (DroneCAN, SPI, I2C, UART), ensuring precise time synchronisation of data. Embedded Development: Develop drivers and firmware (C/C++) to interface sensors via aeronautical protocols (DroneCAN, SPI, I2C, UART), ensuring precise time synchronisation of data. - Calibration and Validation: Execute complex calibration routines (thermal compensation of IMUs, magnetometer calibration) and analyse flight logs to diagnose anomalous behaviour. Calibration and Validation: Execute complex calibration routines (thermal compensation of IMUs, magnetometer calibration) and analyse flight logs to diagnose anomalous behaviour. - Navigation Architecture: Collaborate with the Flight Control Software team to align hardware capabilities with the requirements of state estimation algorithms. Navigation Architecture: Collaborate with the Flight Control Software team to align hardware capabilities with the requirements of state estimation algorithms. What We're Looking For - Experience: 4+ years in navigation hardware integration or control systems. Experience: 4+ years in navigation hardware integration or control systems. - Education: Electrical Engineering, Industrial Automation, or related fields. Education: Electrical Engineering, Industrial Automation, or related fields. - Low-Level Expertise: Proficiency in C/C++ for embedded systems and a deep understanding of industrial/aeronautical communication protocols. Low-Level Expertise: Proficiency in C/C++ for embedded systems and a deep understanding of industrial/aeronautical communication protocols. - Hands-on Lab Skills: Experience with oscilloscopes, logic analysers, and PCB prototyping tools. Hands-on Lab Skills: Experience with oscilloscopes, logic analysers, and PCB prototyping tools. - Data Analysis: Ability to interpret complex telemetry to identify sensor noise, bias, or instability. Data Analysis: Ability to interpret complex telemetry to identify sensor noise, bias, or instability. Differentiating Factors (Nice to Have) - Experience with ArduPilot or PX4 (driver/HAL level). Experience with ArduPilot or PX4 (driver/HAL level). - Knowledge of signal processing and Kalman filters. Knowledge of signal processing and Kalman filters. - Experience with aeronautical hardware certification standards. Experience with aeronautical hardware certification standards. What We Offer: - An excellent working environment and the opportunity to make a real difference; An excellent working environment and the opportunity to make a real difference; - A salary commensurate with proven experience; A salary commensurate with proven experience; - Daily transportation from Lisbon, Leiria, Alcobaça and Rio Maior; Daily transportation from Lisbon, Leiria, Alcobaça and Rio Maior; If you're ready to embrace this opportunity, send us your application.