Software 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, 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.

The Opportunity

We are seeking a highly skilled Software Engineer to provide support in the development of embedded software for cutting‑edge defence applications. This role is ideal for professionals with expertise in C and C++, who have experience working in real‑time environments and model‑based development.

Key Responsibilities

Develop and support embedded software using C and C++. Testing of software changes on‑site. Perform analytical design, critical analysis, and software reviews. Collaborate with teammates, assisting them where required. Apply modern software development best practices, ensuring high‑quality and maintainable code.

Experience And Skills

• Strong proficiency in embedded software development using C and C++.
• Experience in real‑time software design and implementation.
• Understanding of software deployment on Real‑Time Operating Systems (RTOS).
• Analytical and problem‑solving skills, with the ability to conduct design reviews and critical evaluations.
• Experience with model‑based development methodologies and tools.

Values And Behaviours

• Customer‑focused mindset.
• Strong collaboration and teamwork skills.
• Ability to innovate and think critically.
• Analytical mindset for solving complex technical problems.
• Self‑motivated with a proactive approach.
• Strong interpersonal skills, capable of working in a multidisciplinary environment.
• Ability to manage workload, prioritize tasks, and work under pressure to meet deadlines.

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.