Software Validation Engineer

SII Group delivers Digital Services, IT, Engineering, and Consulting to diverse industries, enabling digital transformation through our commitment to Growth, People, and CSR. With over 16,000 professionals across 21 countries, we’re recognised as a “Great Place to Work” for fostering a high-trust culture. Our core values of Trust, Transparency, and Quality drive our work package delivery, ensuring we meet and exceed client expectations as a committed partner. Since 2016, SII UK has supported top Aerospace & Defence, Aviation, Transportation, and Finance clients, empowering digital transformation with industry-leading engineering expertise. Let’s Tech Together is our promise to encourage innovation and teamwork. We support our engineers with development opportunities and a collaborative, inclusive environment where every voice is valued and empowered. #Let'sTechTogether THE OPPORTUNITY SII is seeking a Software Validation Engineer to support a major Space customer. The role focuses on the implementation of flight code V&V activities for complex embedded software developed in C and interacting with FPGA and ASICs. This work package spans requirements analysis, test strategy definition, test development, execution, and full reporting to ensure compliance and traceability. KEY RESPONSIBILITIES: Analyse software requirements for flight code within the payload Software scope. Define and propose an appropriate test strategy based on existing frameworks and project constraints. Develop Verification & Validation tests using Java in a Linux environment. Execute functional, interface, and integration tests on embedded C flight software interacting with customer in-house hardware (FPGAs and ASICs). Produce test reports including: execution results compliance matrices traceability matrices against requirements. Collaborate closely with software development, hardware, and systems engineering teams Ensure adherence to space-grade engineering standards and project quality requirements. ESSENTIAL SKILLS AND EXPERIENCE : Strong proficiency in embedded C for understanding flight software behaviour. Solid knowledge of Java for V&V test development. Competence working in a Linux development and test environment. Understanding of hardware-software interactions involving FPGAs and ASICs. Ability to interpret technical requirements and convert them into structured test plans. Familiarity with compliance, traceability, and structured reporting. Problem-solving mindset with strong analytical thinking. Ability to work within high-complexity, safety-critical or mission-critical environments. DESIRABLE SKILLS: Proven experience in embedded software development and/or V&V, ideally within aerospace, defence, space, or similarly regulated industries. Experience testing complex embedded systems interfacing with custom hardware. Background in developing automated or semi-automated test suites in Java. Experience producing formal V&V documentation, including requirements traceability. Experience working on high-complexity systems with multidisciplinary engineering teams. BENEFITS: Competitive Basic Salary 6% Employers Contribution + 6% as a salary sacrifice Private Medical Insurance, Life Cover and Income Protection 25 days holiday 10 days full sick pay per year Flexible working Cycle to Work & TechScheme Continuous professional development Corporate access to the Udemy platform If you're applying for a role requiring security clearance, please be aware that foreign or dual nationality is not an automatic bar, however certain posts may have restrictions which could affect those who do not have sole British nationality or who have personal connections with certain countries outside the UK.