Senior Electronics & Systems Engineer

Overview

As a Senior Electronics & Systems Engineer at ONI, you own the end-to-end electronics and embedded software across product lifecycles, from concept to production. You will work closely with engineering, software and R&D to integrate electronics with optics, mechanics and firmware, solving multidisciplinary challenges. You drive hardware bring-up, verification, and production readiness while developing production firmware and automation tools. This role offers meaningful impact in advancing scientific discovery and healthcare technologies in a fast-paced, collaborative environment.

Pay / Benefits

• Competitive compensation
• 28 days annual leave plus 8 bank holidays and 4 wellbeing days
• Onsite gym
• Private healthcare and dental coverage
• Cycle to work scheme
• Mental health support and pension

Responsibilities

• Own electronics designs from concept to production, including architecture, schematic design, PCB development, bring-up and verification
• Design robust analogue and digital electronics: power supplies, sensor interfaces, communications and control electronics
• Make component and architecture choices balancing performance, cost, manufacturability and requirements
• PCB design and layout with external designers, addressing signal integrity, grounding, EMC/ESD, thermal, DFM/DFT
• Bring up hardware and debug complex problems with lab instruments (oscilloscopes, logic analyzers, debuggers)
• Develop and maintain production embedded firmware for microcontrollers and low-level hardware bring-up
• Interface sensors, actuators and hardware (analog front ends, ADCs/DACs, SPI/I2C/UART/CAN/USB/Ethernet)
• Collaborate with optical and mechanical engineers on optoelectronic interfaces (photodetectors, lasers, cameras, sensors)
• Diagnose root causes across electronics, firmware, sensors, optics, mechanics and software
• Develop test/automation tools (Python-based) for instrumentation, QA and manufacturing
• Support verification, EMC/compliance testing, production test, calibration and transfer to manufacture
• Apply modern software engineering practices (source control, automated testing, CI/CD) and AI-assisted development tools

Key requirements

• Strong analogue and digital circuit design fundamentals
• Schematic capture and multilayer PCB layout
• Power supply design and distribution
• Low-noise electronics, grounding, shielding, signal integrity
• Sensor interfacing, analogue conditioning, amplification, filtering and data conversion
• Microcontrollers and embedded systems; robust production firmware in C/C++
• Interfaces: SPI, I2C, UART, CAN, USB, Ethernet
• Practical board bring-up with instrumentation and failure analysis
• Design for EMC, ESD, reliability, manufacturability and test
• Experience with Git and Python for test and automation
• Cross-discipline collaboration across electronics, firmware, mechanical, optical and software disciplines

• Collaborative
• Ownership-minded
• Problem-solving in multidisciplinary contexts
• Analogue and digital circuit design
• PCB layout and DFM/DFT
• Embedded C/C++ and microcontroller firmware

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