4 Testing jobs in Hartwell

Your primary responsibilities will include fitting, testing, and optimising propulsion systems as we develop next-generation sustainable technologies. Key Responsibilities Install instrumentation on propulsion systems, including engines, batteries, and ...

Engine Test Cell Technician

15 January 2026
Expert Employment - Aylesbury, HP19 8AP
£38,000 to £48,000 per year
On-site only
Permanent
Full time

The primary responsibility of the role is to support the Hot Fire Test teams across all engine test cells. This involves site maintenance, upkeep, and preparation activities before and after hot fire testing, as well as set-down activities post-test. Key ...

Mechanical Fitter, propulsion system

15 January 2026
Expert Employment - Aylesbury, HP19 8AP
£38,000 to £42,000 per year
On-site only
Permanent
Full time

The successful candidate will support hazardous operations, testing firing sites. You will work closely with Lead Test Engineers to prepare and maintain test sites, handle propellants, conduct sampling and analysis, and perform various critical operational ...

Mechanical Assembly Technician

08 January 2026
Expert Employment - Aylesbury, HP19 8AP
£28,000 to £35,000 per year
On-site only
Permanent
Full time

We are looking for a Mechanical Assembly Technician to join an expanding aerospace production team working on space products. The role will involve Precision mechanical assembly and testing in a cleanroom environment Assembly and testing of valves, thrusters, ...