Electrical AIT Technician in Portsmouth

We are seeking an

ELECTRICAL AIT TECHNICIAN to support the integration, validation and operational testing of spacecraft and payload systems throughout the assembly, integration and test lifecycle.

This hands‑on role involves executing electrical integration activities, validating test equipment.

Working within cleanroom environments, the successful candidate will ensure safe and compliant test operations while contributing to anomaly resolution, process improvement and delivery of mission‑critical space hardware.

• ROLES & RESPONSIBILITIES
• Execute electrical integration and test operations on spacecraft and payload equipment.
• Configure, validate and operate Electrical Ground Support Equipment (EGSE).
• Verify and validate test aids, harnesses and supporting equipment before use.
• Perform electrical equipment installation, connection and health checks.
• Execute functional, performance and system‑level validation tests.
• Support testing in cleanroom and environmental test facilities, including:
• Thermal vacuum testing
• EMC testing
• Vibration testing
• Final acceptance testing
• Support launch campaign preparation and final spacecraft configuration activities.
• Conduct electrical measurements and diagnostics using test instruments such as oscilloscopes, voltmeters and ohmmeters.
• Record and report test results, anomalies and non‑conformances.
• Produce red‑lined procedures and as‑run documentation.
• Ensure traceability records are completed accurately.
• Participate in lessons learned and continuous improvement activities.
• Follow quality, safety and operational procedures at all times.
• Generate activity reports and provide status updates against operational schedules.

SKILLS REQUIRED

• Electrical integration and test experience within a complex engineering environment.
• Experience executing functional and validation test procedures.
• Understanding of electrical systems, power systems and electronic hardware.
• Ability to perform electrical measurements, fault diagnosis and troubleshooting.
• Experience reviewing technical documentation, wiring information and integration procedures.
• Knowledge of system validation and verification processes.
• Experience working in controlled or regulated environments.

• Software & Tools (experience with some or all of)

• Python
• TCL
• SQL
• MATLAB
• VBA
• Applications
• Microsoft Office
• SAP
• Engineering work management and test execution tools
• Operating Systems
• Linux / Unix
• Windows
• Equipment
• Oscilloscope
• Micro‑ohmmeter
• Megohmmeter
• Electrical test and measurement equipment
• Additional Requirements
• Ability to work within cleanroom environments.
• Eligible to obtain the required security clearances.

With five strategic offices in Belfast, Chester, Farnborough, London and Oxford, we work in partnership with our customers UK‑wide to deliver high‑impact engineering solutions.

SII UK is a trusted Aerospace and Defence engineering partner, supporting the delivery of complex, mission‑critical programmes while helping to shape the future of innovation across next‑generation systems and technologies.

Our teams contribute daily to creating a fulfilling, stimulating and career development focused work environment.

True to our human‑centred values, we are committed to making SII UK a Great Place To Work®, having been certified 5 years running.

Joining SII UK means being part of our collective goals, guided by our mission “Let’s Tech Together,” and helping to build a digital future that is sustainable, at the heart of an environment that values learning & collaboration.

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