Software Validation

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, Commitment, Accountability, Passion,  Creativity, and Transparency 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

We are seeking a Software Validation Engineer skilled in Java and C to test and validate payload software for communication satellites. You will ensure mission-critical software meets reliability and performance standards in space environments, working closely with the development and system teams to achieve high-quality results.

KEY RESPONSIBILITIES:

• Develop and execute test plans for payload software on communication satellites.
• Write and execute automated and manual test scripts using Java and C.
• Simulate satellite payload operations and perform system integration and regression testing.
• Track and resolve software defects using tools like JIRA or Bugzilla.
• Prepare and maintain test documentation in compliance with standards like DO-178C or ECSS.

SKILLS:

• Bachelor's/Master's in Computer Science, Engineering, or related fields.
• Strong experience in software testing for embedded systems or mission-critical environments.
• Proficiency in Java and C programming.
• Knowledge of satellite communication protocols and testing frameworks (e.g., JUnit, CUnit). Experience with test automation, CI/CD pipelines, and version control systems (e.g., Git, SVN).

Desirable Skills:

• Familiarity with Python scripting.
• Experience with hardware-in-the-loop (HIL) testing. Knowledge of AWS or cloud platforms for software simulations.

BENEFITS:

• Competitive Basic Salary
• 6% Employers Contribution + 6% as a salary sacrifice
• Private Medical Insurance, Life Cover and Income Protection
• 25 days holiday
• 5 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.