Systems Engineer


Company:	The Opportunity Hub UK Ltd
Salary:	£45,500 to £56,500 a year
Hours:	Full-time
Location:	Southampton, SO15 1GW
Job type:	Permanent
Posting date:	23 Oct 2026
Closing date:	22 Nov 2026

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Summary

Perfect role for a mid professional looking to grow their Defence & Government career in Southampton.

Defence programmes live or die on the systems holding them together, and right now a growing technology company in Southampton needs someone who can own that responsibility properly. This is a startup built around fast decision-making and real accountability, working on programmes that support national security outcomes. If you want your work to matter beyond a sprint board, this Systems Engineer (SC Cleared) role is worth a serious look.

Here's what you'll be doing:

Design, integrate and test complex systems across the full engineering lifecycle, from concept through to deployment

Work directly with government and defence stakeholders to translate operational requirements into workable technical solutions

Produce and maintain technical documentation, including system specifications, interface control documents and test evidence

Troubleshoot integration issues across hardware and software boundaries, often under time pressure

Support verification and validation activities, ensuring systems meet contractual and regulatory requirements

Collaborate with cross-functional teams including software, hardware and security specialists on a daily basis

Here are the skills you'll need:

Active SC Clearance (essential, no exceptions given the nature of this Systems Engineer (SC Cleared) role)

A degree in systems engineering, electronics, computer science or a related discipline, or equivalent hands-on experience

Solid experience with systems engineering methodologies (MBSE experience is a strong plus)

Familiarity with defence standards and requirements management tools such as DOORS

Comfortable working independently and making judgement calls without waiting for permission

Clear written and verbal communication, particularly when explaining technical detail to non-technical stakeholders

Key perks and benefits:

£45,500 to £56,500, depending on experience

Hybrid working from the Southampton office, with genuine flexibility around hours

Equity in a company that's still shaping how it works, not just where you sit

A dedicated learning and development budget to keep building your expertise

A flat structure where your ideas reach decision-makers directly, not through five layers of management

Why pursue a career in Defence & Government?

Defence and government work isn't going anywhere. Budgets are growing, threats are evolving, and the demand for cleared, capable engineers keeps rising with them. Southampton has quietly become one of the UK's stronger hubs for this kind of work, with a cluster of defence and maritime technology firms that value people who stick around and get good at their craft. Few sectors reward reliability and clearance status quite like this one.

This Systems Engineer (SC Cleared) opportunity is brought to you by The Opportunity Hub UK.

By applying, you acknowledge that The Opportunity Hub may retain your details and consider you for other suitable opportunities. You may opt out at any time. Privacy Notice: theohub.global/privacy

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