Salary: £90,000 - 90,000 per year
Requirements:
- Active DV clearance.
- Strong software engineering experience in Python or C/C++ development.
- Strong understanding of software architecture, system integration, and modern engineering practices.
- Proven ability to lead technical investigations, solve complex problems, and implement sustainable solutions.
- Experience mentoring engineers and driving high standards of software quality.
Responsibilities:
- Support the maintenance, enhancement, and modernisation of complex software systems within a secure environment.
Technologies:
- Support
- Python
- Security
More:
We are seeking an experienced Senior Software Engineer for a permanent, full-time role based in Portsmouth, UK, with 3 days per week onsite. This position requires active MoD DV clearance and offers a salary of £70,000 to £90,000. We are looking for someone to help maintain, improve, and modernise complex software systems in a secure environment.
last updated 40 week of 2026
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DV Cleared Software Engineer in Portsmouth employer: IO Associates
Join a leading engineering organisation that values innovation and excellence, offering a dynamic work culture where your contributions directly impact high-performance solutions in safety-critical environments. With a strong focus on employee growth, you will have the opportunity to mentor fellow engineers and shape technical direction while working in an Agile/SAFe environment. Located in the UK, this role provides a unique chance to be part of cutting-edge projects in defence, aerospace, and industrial technology, ensuring a rewarding and meaningful career path.
