Senior Test Engineer

Senior Test Engineer Location: Horsham Job Type: Permanent A high-growth clean energy engineering business is seeking a Senior Test Engineer to take ownership of complex test and validation activities supporting advanced electro-mechanical systems. This Senior Test Engineer position sits at the centre of product development, working across engineering teams to deliver structured, high-quality testing that directly influences product performance, reliability, and commercial deployment. As a Senior Test Engineer, you will be responsible for executing verification and validation programmes, commissioning test rigs, analysing data, and leading fault-finding investigations. You will also play a key role in improving test processes, developing documentation, and mentoring junior engineers. This role suits a hands-on Senior Test Engineer who enjoys working with real hardware, solving technical problems, and taking ownership of test outcomes in a structured engineering environment. Key responsibilities * Execute verification, validation, and development testing activities * Prepare, commission, and operate test stands and rigs * Analyse test data, identify trends, and produce detailed reports * Lead fault-finding and root cause investigations on complex systems * Develop test procedures, SOPs, and risk assessments * Support test planning, scheduling, and continuous improvement * Collaborate with design and systems teams on test capability development * Provide technical guidance and mentoring to junior engineers Requirements * Degree in Mechanical Engineering, Electrical/Electronic Engineering, Physics or similar * Several years’ experience in a hands-on test or validation role * Strong experience with test rigs, instrumentation, and data analysis * Proven fault-finding and root cause investigation capability * Ability to read and interpret mechanical drawings, schematics, and P&IDs * Experience producing technical reports and presenting findings * Familiarity with safety tools such as HAZOP, HAZID, FMEA or similar * Ability to manage workloads and deliver against multiple priorities Desirable * Experience with electro-mechanical systems, energy systems, or complex hardware * Exposure to thermodynamics, efficiency calculations, or heat balances * Experience working in R&D or product development environments What this role offers * Exposure to advanced engineering technology with real-world impact * A technically challenging environment with strong engineering standards * Opportunity to influence test strategy and system performance * Clear progression into senior technical or leadership roles