At a Glance
- Tasks: Design and build control systems for innovative bio-electrochemical processes.
- Company: Join Byohm, a pioneering UK climate tech company transforming wastewater into clean energy.
- Benefits: Enjoy a competitive salary, generous holiday, and health benefits.
- Other info: Work in a dynamic team with opportunities for growth and innovation.
- Why this job: Make a real impact in sustainability while developing cutting-edge technology.
- Qualifications: Degree or hands-on experience in Electrical, Electronic, Mechatronics, or Control Engineering.
The predicted salary is between 36000 - 36000 £ per year.
Byohm (a trading name of Wastewater Fuels Ltd) is a UK climate technology company developing next-generation bio-electrochemical systems that turn wastewater treatment into a net energy-positive process while boosting biomethane production from anaerobic digestion. Its proprietary platform converts organic waste into clean energy in the form of hydrogen and biomethane, while treating water to help meet environmental discharge standards.
The company collaborates with industrial and academic partners including Severn Trent Water, United Utilities, Anglian Water, and Warwick Manufacturing Group to deploy pilot systems and accelerate commercial rollout. With over 600 prototypes tested and rapid design-to-install capabilities, the team is turning bioelectrochemical science into scalable infrastructure to address global challenges in water, energy, and sustainability.
We are looking for a hands-on Controls & Electronics Engineer to join our engineering team. Your two primary focuses are PLC/control-panel work and PCB/electronic hardware design. These are the systems that let us monitor, control and optimise our bio-electrochemical processes, from lab-scale rigs through to full-scale deployed equipment. You will design, prototype, build and commission control and electronic systems, working alongside process, software and mechanical colleagues.
This is a practical, delivery-focused role: we value engineers who can take a requirement and run with it, get hardware working on the bench, and see it through to a reliable system in the field. You will work day-to-day along with the electrical and electronics team, within an engineering team reporting to the Lead Product Manager. This is an ideal role for a graduate-to-mid-level engineer looking to take real ownership and grow across the full controls-and-hardware stack.
Key Responsibilities- PLC & control systems: program, configure and test PLCs and build control panels for lab rigs and deployed treatment systems.
- PCB & hardware design: design, lay out, assemble and bench-test PCBs and electronic circuits (sensors, actuators, signal conditioning, power).
- Instrumentation & comms: integrate sensors and actuators over industrial buses (RS-485 / Modbus, CAN) and validate them end-to-end.
- Firmware and microcontroller work (ESP32 / Arduino / Raspberry Pi) for custom automation and IoT-enabled devices.
- Installation, commissioning and ongoing performance improvement of deployed systems on client sites.
- Power distribution, energy management and scalability as systems grow from bench to container scale.
- Thorough technical documentation such as schematics, wiring diagrams, test reports and handover packs.
- Working to relevant safety standards and contributing to design-compliance documentation.
- Either a degree in Electrical, Electronic, Mechatronics or Control Engineering or no degree with equivalent hands-on experience.
- Strong in either PLC / controls (programming, configuring, panel wiring) or PCB / hardware design (using an EDA tool, we use KiCad; Altium / Eagle transfers), with solid working knowledge of the other.
- Confident with lab tools: oscilloscope, multimeter, bench PSU, and circuit simulation (e.g. LTspice).
- Programming in at least one of Python or C / C++ for automation and control.
- Demonstrable end-to-end delivery, a project, product or rig you designed and built yourself.
- Siemens TIA Portal / S7-1500, or SCADA / HMI development.
- Industrial comms in practice (RS-485 / Modbus / CAN), and IoT / system integration.
- Control theory, power / energy management, or embedded RTOS experience.
- Awareness of DSEAR / ATEX and hazardous-area concepts (our systems can involve biogas).
- Are practical and experimental, enjoy building things and making them work, and finish what you start.
- Are happy owning a task with light direction and asking the right questions when you need to.
- Care about sustainability, innovation and clean technology.
- Location: On-site, Coventry, West Midlands
- Annual salary: Competitive salary (up to £36k pa, subject to experience)
- Holiday: 25 days + bank holidays + Christmas shutdown
- Contract: 1-year fixed-term, with potential to become permanent subject to performance
- Benefits: Company Pension, Free On-site Parking, Health & Wellbeing Programme, Sick Pay
- Eligibility: Right to live and work in the UK; basic security checks may be required
Controls & Electronics Engineer in Coventry employer: BYOHM
Byohm is an exceptional employer, offering a dynamic work environment in Coventry where innovation meets sustainability. With a strong focus on employee growth, the company provides hands-on experience in cutting-edge bio-electrochemical systems, alongside competitive benefits such as a generous holiday allowance and a health & wellbeing programme. Join a collaborative team that values practical skills and encourages ownership of projects, making a meaningful impact in the climate technology sector.
