Electronics / Firmware Engineer

Contract Senior Electronics / Firmware Engineer Sensor Expertise Rate: £400 £425 per day + VAT IR35 Status: Outside IR35 Location: Greater London (3-4 days on site per week min) Contract Length: 3 6 months, with potential extension We re working with an innovative technology business at the forefront of advanced sensing solutions, seeking a Senior Electronics / Firmware Engineer to support the development of next-generation products. This is an opportunity to join a highly collaborative, multidisciplinary team delivering cutting-edge solutions with real-world impact. In this role, you ll take ownership of sensor characterisation and optimisation, with a particular focus on humidity and temperature sensing technologies. You ll play a key part in refining performance, reliability, and integration within sophisticated systems, contributing directly to product development from concept through to validation. This is a hands-on engineering role suited to someone who enjoys solving complex technical challenges and working closely with hardware, software, and mechanical engineers in a fast-paced RandD environment. Key Responsibilities Characterise, test, and optimise sensor performance, particularly metal oxide and electrochemical sensors Design, develop, and iterate electronic circuits and PCB layouts Support firmware development for hardware interfacing and system integration Collaborate cross-functionally to ensure seamless integration across electronics, firmware, and ..... full job details .....