Electronics / Firmware Engineer

Contract Senior Electronics / Firmware Engineer - Sensor ExpertiseRate: £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 ResponsibilitiesCharacterise, test, and optimise sensor performance, particularly metal oxide and electrochemical sensorsDesign, develop, and iterate electronic circuits and PCB layoutsSupport firmware development for hardware interfacing and system integrationCollaborate cross-functionally to ensure seamless integration across electronics, firmware, and mechanical ..... full job details .....