Software Engineer - C
UK Visa Sponsorship Analytics
Occupation Type
Programmers and software development professionals
Occupation Code Skill LevelHigher Skilled
Sponsorship Salary Threshold
£54,700
(£28.05 per hour)
Occupation rate applies
Above analytics are generated algorithmically based on job titles and may not always be the same as the company's job classification. You can also check detailed occupation eligibility, and salary criteria on our UK Visa Eligible Occupations & Salary Thresholds page.
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Description
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.
ROLE:
We are looking for an experienced Software Engineer with strong C programming expertise to support the development of a mission-critical embedded communication system used in military vehicles.
The role involves extending and modifying an existing codebase to improve intercom functionality, integrating IP-based communication features, and ensuring software is delivered to high standards of reliability and compliance.
RESPONSIBILITIES:
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.
ROLE:
We are looking for an experienced Software Engineer with strong C programming expertise to support the development of a mission-critical embedded communication system used in military vehicles.
The role involves extending and modifying an existing codebase to improve intercom functionality, integrating IP-based communication features, and ensuring software is delivered to high standards of reliability and compliance.
RESPONSIBILITIES:
- Review and work with the existing baseline software (version 2.0).
- Implement modifications in C to:
- Integrate and extend the dismounted call feature.
- Remove reliance on legacy hardware.
- Enable automatic call initiation and acceptance using IP and VoIP protocols.
- Ensure consistent behaviour across multiple crew station types.
- Update user interfaces (HMI and web configuration pages) to support new functionality.
- Conduct unit, integration, and regression testing against defined requirements.
- Participate in structured design reviews (System, Preliminary, Critical, Factory Acceptance).
- Maintain clear and accurate design documentation, test reports, and review minutes.
- Collaborate with verification engineers and project teams to ensure compliance.
- Deliver all source code, compiled load files, and supporting materials securely.
Essential
- Strong C programming background, particularly for embedded systems.
- Experience with toolchains including:
- Xilinx ISE, powerpc-eabi-gcc
- Background in safety-critical or defence-related software development.
- Knowledge of VoIP and IP-based communication protocols.
- Experience contributing to formal design review processes.
- 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.
http://www.groupe-sii.com/en