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This role is responsible for the development, and execution, of SSTL avionics hardware testing. The role focuses on executing controlled test procedures, ensuring measurement integrity, maintaining safe test environments and contributing to the development of product test capabilities/methods. The test engineer will work closely with core avionics teams across the business to ensure high-reliability testing appropriate with flight hardware. This is a technical, lab-based role with an emphasis on continuous improvement to current test methodologies.
Job Responsibility
Perform bench-level functional testing of core avionics and subsystems
Safe execution of electrical, RF and environmental test activities
Maintaining test rigs, harnesses and instrumentation
Identifying, implementing and driving process improvements
Contribute to the strategy of the Product Test team
Developing and executing test plans for digital, analogue, and mixed-signal electronics
Producing high-quality technical documents including test procedures, results and fault capture reports
Effective stakeholder management across Production, Engineering and Projects
Conduct flight model hardware testing, including but not limited to The Engine while remaining hands-on with technical work
Collaborate with the Engineering Department to agree handover plans, scope, ownership, responsibilities and boundaries for testing activities
Perform detailed circuit-level debugging using lab equipment and diagnostic tools
Support design teams by reviewing schematics and layouts, ensuring test robustness
Recording results – including processing and analysing raw data
Provide Test Engineering support for one-off or low-volume hardware testing (e.g. Imager Electronics)
Maintain accurate records of testing processes, procedures and results in a centralised, accessible database with consistent data management
Control of technical solutions, budgets, and schedules relating to verification and test activities
Host Test Readiness Reviews and Test Review Boards with stakeholders
Fault investigation and debugging
Support in the design of test equipment (test racks/jigs)
Refine and automate manual testing to streamline and improve test efficiency
Identify process inefficiencies, risks, and failure points, and propose justified improvements to management, including equipment upgrades or new workflows
Install, configure and operate test rigs, ground support equipment and subsystems
Requirements
Proven experience in electrical hardware testing, preferably within aerospace, space systems, defence or other high-reliability domains
Practical hands-on experience testing electrical, RF, or mixed-signal hardware
Familiarity with environmental, functional, and integration testing of complex electro-mechanical systems
Understanding of DC Power systems, RF test principles and required equipment (VNA/spectrum analysers/signal generators), on-board computer systems, payload data storage and interfacing
Familiarity with test automation tools and data acquisition systems
Exposure to automated test methods or SCPI-driven instruments (advantage)
Understanding of Design for Test (DfT) and scalable production test methodologies
Engineering qualification (HNC/HND or degree in Mechanical, Aerospace, Electrical, or related field)
Knowledge of industry standards, ideally for space hardware testing (e.g., ECSS, NASA GEVS, MIL-STD)
Test automation experience highly preferred, using Python or similar
Strong analytical and systems thinking capabilities
Experience creating test procedures, workflows, and evaluation reports
Comfortable working independently within a small, fast-moving team environment
Excellent written and verbal communication skills
Competent in reading schematics, block diagrams and controlled procedures
Ability to speak to all technical levels within the business
Nice to have
Exposure to automated test methods or SCPI-driven instruments
Understanding of Design for Test (DfT) and scalable production test methodologies
Test automation experience highly preferred, using Python or similar