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