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C++/Rust – Software Engineer

Reference: 55617
Salary: £52,000 - £63,000
Location: Melbourn
Job Type: Perm
Sector: Technology
Posted: 21 October 2026

Got a question about this role?

William West-Robinson

William West-Robinson

Recruitment Consultant, Cambridge Office

I'm passionate about technology recruitment because every search is different! Since joining The ONE Group, I’ve enjoyed getting under the skin of...
Read more about William

About The Role


  • Perm
  • Melbourn
  • £52,000 - £63,000 GBP / Year

The One Group

Pay: £52,000.00-£63,000.00 per year

Job Description:

Join a leading cyber security company developing next-generation secure networking products that protect the world’s most critical infrastructure.

Software Engineer (C++ / Rust)

Cambridgeshire (Hybrid)

£52,000 – £63,000

We’re working with an exciting cyber security business that’s developing next-generation secure networking products used to protect some of the world’s most critical infrastructure across defence, government and industry.

This is a fantastic opportunity to join a highly skilled engineering team working on innovative, security-focused products where you’ll have genuine ownership, collaborate with talented engineers and work with modern development practices.

The Role

As a Software Engineer, you’ll be involved in the design, development and enhancement of cutting-edge cyber security products. You’ll work across the full software development lifecycle, contributing to technically challenging projects with real-world impact.

This is a collaborative environment where quality software engineering is at the heart of everything they do, with a strong focus on knowledge sharing, pair programming and continuous improvement.

We’re Looking For

You’ll ideally have experience with some of the following:

  • Modern C++ and/or Rust

  • Linux application development

  • Python

  • Embedded Linux, RTOS or bare-metal development

  • Network protocols or networking technologies

  • Cyber security or secure systems (desirable)

Candidates must be eligible to obtain UK Security Clearance.

What’s On Offer?

  • Competitive salary

  • Annual bonus

  • Hybrid working

  • Excellent pension and benefits package

  • Ongoing training and career development

  • The opportunity to work on genuinely innovative technology with real-world impact

If you’re an engineer who enjoys solving complex technical problems and wants to work on products that make a real difference, we’d love to hear from you.

Apply today!

To apply for this job email your details to Wwest-Robinson@theonegroup.co.uk

About The ONE Group


The ONE Group is a specialist recruitment consultancy with offices in Cambridge, Peterborough, Northampton, and Hertfordshire.

We recruit across Technology, Engineering & Manufacturing, Scientific, Sales, and Marketing, with consultants who specialise in their sector rather than trying to cover everything. This focused approach allows us to provide deeper market knowledge, stronger networks, and better hiring outcomes for both clients and candidates.

Our expertise spans permanent, contract, and senior-level appointments. Most importantly, the majority of our business comes from repeat clients and referrals, reflecting the long-term relationships we build and the trust we earn through consistently delivering results.

What Happens Next


1

One of our consultants will review your application within one working day.

2

If your experience looks like a fit, we'll be in touch for a quick conversation to understand what you're looking for.

3

From there, we'll talk you through the role properly, prepare you for interview, and stay alongside you through to your start date.

4

Whatever happens with this role, we'll keep your details on file, with your permission, so we can flag other opportunities that suit you.

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