System Control Design Engineer

System Design Engineer Chelmsford – Office Based £60,000–£65,000 We are currently partnering with a highly specialised engineering and technology organisation who are looking for a System Controls Design Engineer to join their expanding R&D team in Chelmsford. The business operates within an advanced, innovation-led environment focused on the development of ultra-low temperature refrigeration and cooling technologies. Working at the intersection of thermodynamics, control systems, and product engineering, they are developing highly technical systems used within demanding and regulated applications. This is an excellent opportunity for someone with a strong background in control systems, modelling, and system integration who enjoys working across the full product development lifecycle. In role, you will support the design and development of advanced refrigeration systems, focusing on control algorithms, simulation, integration, and performance optimisation. You will work closely with R&D, engineering, manufacturing, and supplier teams to ensure systems are robust, efficient, and aligned with technical and commercial requirements. The role is based in the Chelmsford area and is an office-based role. Key Responsibilities Design and develop control systems for ultra-low temperature refrigeration applications. Develop and implement PID and advanced control strategies for precise thermal regulation. Build, calibrate, and validate numerical models using MATLAB/Simulink or similar tools. Analyse system performance data and optimise control strategies and thermodynamic efficiency. Support integration of sensors, actuators, and refrigeration hardware into complete systems. Collaborate with cross-functional teams to define system architecture and technical requirements. Support testing, validation, and continuous improvement activities throughout development. Prepare and maintain technical documentation including specifications, control logic, and operating procedures. Experience Required Ideally have a degree in Control Systems Engineering, Mechanical Engineering, Electrical Engineering or similar. Strong experience in control systems design and system dynamics. Experience with modelling and simulation tools such as MATLAB/Simulink. Knowledge of embedded or industrial control software development. Understanding of sensors, actuators, and system integration principles. Strong analytical and problem-solving capability with a data-driven approach. Excellent communication skills and the ability to work collaboratively across teams. Salary: £60,000–£65,000 Benefits: 25 days holiday, Pension, Healthcare Interview Process: 3 stages – first two on Teams. Final stage in the office If this role sounds of interest, please apply and I can give you a call. Tim Stock (url removed) (phone number removed) | (phone number removed)