Test Systems Engineer / Test Equipment Development Engineer Location: Luton, UK (5 days onsite) Contract Length: 12 Months (Inside IR35) Rate: £60-64 per hourt Working Arrangement: Fully Onsite Industry: Aerospace & Defence Experience Level: 9–15 years Clearance: BPSS + ability to obtain SC (UK/EU citizenship required) Overview We are seeking an experienced Test Systems Engineer / Test Equipment (TE) Development Engineer to join our client's team in Luton. The role focuses on formalising, expanding, and improving an existing prototype Design Verification Test (DVT) system for high-reliability aerospace and defence applications. The successful candidate will carry the test equipment through its full development lifecycle — from requirements capture through to qualification — ensuring the delivery of reliable, compliant, and well-documented TE solutions. This is a fully onsite, Inside IR35 contract within a highly technical, safety-critical engineering environment. Key Responsibilities Responsibilities may vary depending on experience, but will typically include: Test Requirements & Planning * Define and formalise test requirements for Design Verification (DV) and Qualification of main equipment LRIs * Generate comprehensive test plans and supporting documentation * Plan and prepare all aspects of TE development, including custom/COTS hardware, test tools, and test software Test Equipment Design & Development * Produce TE requirement specifications for hardware and software * Develop detailed TE design documentation, including schematics, drawings, BOMs, wiring diagrams, and design reports * Work closely with TE software engineers to ensure software solutions meet requirements * Identify, propose, and deliver TE design improvements to meet evolving test needs * Conduct and support safety and cyber-security assessments of the DVT system Documentation & Governance * Produce all required documentation across the TE development lifecycle * Present design data, TE status, risks, and actions at design reviews * Release TE hardware drawings, BOMs, VDDs, SRNs, and software documentation in customer PDM/PLM systems * Prepare user documentation for DVT systems Testing, Qualification & Delivery * Oversee or support the qualification process for TE solutions * Produce qualification and acceptance reports * Support early Design Verification Testing of main equipment LRIs as required * Ensure TE solutions are compliant, repeatable, robust, and aligned with programme needs Mandatory Skills & Experience * Proven TE development experience for complex, high-reliability systems * Strong understanding of the full TE lifecycle: requirements → design → development → qualification * Experience working in multi-discipline engineering teams * Hands-on use of General Purpose Test Equipment (oscilloscopes, spectrum analysers, signal generators, etc.) * Ability to run test scripts and support automated test environments * Excellent verbal and written communication skills * Ability to produce high-quality documentation: * Test requirements * TE specifications * TE design documentation * User manuals * Qualification/acceptance reports