Hardware Design Engineer

Contract Details Job Title: Hardware Engineer - Piezoelectric / Ultrasonic Systems Duration: 6 months initially Location: Hybrid (3 days/week) or on-site, North London Outside IR35 Key Responsibilities Design high-voltage and low-voltage analogue driver circuits for piezoelectric transducers, including pulser and continuous-wave excitation stages. Develop low-noise analogue receive chains for ultrasonic signal acquisition, including LNAs, VGAs, filtering, and signal conditioning. Design and optimise impedance matching networks to improve power transfer, sensitivity, and system efficiency. Design and iterate PCB layouts for ultrasonic drive, receive, and mixed-signal subsystems. Integrate piezoelectric transducers into complete hardware systems including power electronics, ADC/DAC stages, timing circuits, and embedded or FPGA-based control. Support prototype development, bring-up, debugging, and rapid hardware iteration. Develop and execute test and validation procedures for ultrasonic hardware performance. Collaborate with acoustics, mechanical, and systems engineers to ensure correct transducer operation and integration within the full system. Essential Skills Strong analogue electronics design experience Experience with precision analogue circuit design PCB design/layout experience using tools such as Altium, KiCad, or equivalent Hands-on laboratory experience with oscilloscopes, signal generators, and measurement equipment Understanding of signal conditioning, filtering, and low-noise design principles Strong hardware debugging and troubleshooting skills Ability to interpret experimental data and iterate hardware designs effectively Familiarity with embedded systems or mixed-signal hardware integration