Senior C++ Engineer - National Security (DV Cleared)

Frontier Resourcing; Cheltenham; On-site; GBP 70,000 - 90,000; Full time

Job summary

Frontier Resourcing LTD is seeking a Senior C++ Engineer in Cheltenham to design and maintain high‑performance software for national security projects.

The role focuses on delivering scalable systems in Linux, with active DV clearance preferred. Salary £70,000-£90,000 and a 37.5‑hour work week.

You will influence architectural decisions, mentor colleagues and stay at the cutting edge of ultra-low-latency software.

Qualifications

• Experience with modern C++ in a Linux environment.
• Strong software engineering fundamentals and design practices.
• Ability to tackle complex technical problems and deliver maintainable code.
• Active DV clearance or recently active DV clearance.
• Willingness to learn continuously and contribute to the team.

Responsibilities

• Design, develop and maintain high‑performance software and systems.
• Drive technical solutions and influence engineering decisions.
• Support and mentor colleagues to raise engineering quality.
• Challenge existing approaches and explore new technologies, including ultra-low latency applications.

Skills

Modern C++

Linux

Software engineering principles

Problem solving

Learning mindset

Collaboration

DV clearance

Influence engineering decisions

Job description

Frontier Resourcing LTD is seeking a Senior C++ Engineer in Cheltenham to design and maintain high‑performance software for national security projects.

The role focuses on delivering scalable systems in Linux, with active DV clearance preferred. Salary £70,000-£90,000 and a 37.5‑hour work week.

You will influence architectural decisions, mentor colleagues and stay at the cutting edge of ultra-low-latency software.