Principal C/C++ Software Engineer

Company: Ultra Electronics Group
Apply for the Principal C/C++ Software Engineer
Location: Cheltenham
Job Description:

Overview

We are Ultra Precision Control Systems (Ultra PCS), a leading developer of mission‑critical equipment for the defence and aerospace industry. Our team of experts creates engineering solutions that keep customers safe and on mission. Ultra PCS solutions are used in military and civil aircraft, unmanned vehicles, and other critical systems.

Position Overview

The role is for an experienced Software Engineer who will design, develop, and verify C++ solutions for our EAK GVA platform. The engineer will distill customer requirements, implement robust code under tight timeframes, and perform verification and validation activities.

Key Responsibilities

  • Define requirements, design, develop, and verify software for integrity levels ranging from safety‑critical to proof‑of‑concept.
  • Write high‑quality C++ code following internal coding standards.
  • Conduct design and code reviews to maintain quality.
  • Debug embedded systems.
  • Develop and execute verification and validation strategies.

Technical Skills Required

  • High proficiency in C++
  • High proficiency in Embedded Linux
  • Experience with Graphical Frameworks such as Vulkan, OpenGL, or Qt
  • CI/CD workflow experience, Git, containerised development environments
  • Familiarity with debugging tools, hardware interfaces, and safety analysis techniques

Personal Attributes

  • Strong organisational skills and ability to collaborate within a wider team
  • Excellent communication skills, able to liaise with technical and non‑technical stakeholders

Desirable Qualifications

  • Working knowledge of Rust
  • Understanding of hardware/software integration and hardware‑in‑the‑loop (HIL) testing

Benefits

  • Flexible working within core hours (hybrid or part‑time options)
  • 25 days holiday (185 hours) with option to buy/sell 5 days (37 hours) plus bank holidays
  • 4 times annual salary in life assurance
  • Pension scheme: up to 5.5% employer contribution after 5 years of service, up to 7.5% thereafter
  • Sports and social club membership
  • Career development opportunities and supportive, friendly working environment with regular team events

Nationality and Security Requirements

Candidates must be able to work in the UK without restrictions and be prepared to undergo UK National Security Vetting in accordance with UK Government criteria.

Diversity & Inclusion

Ultra PCS is an equal‑opportunity employer that values diversity, inclusion, equity and equality. We do not discriminate on race, religion, colour, national origin, gender identity, sexual orientation, age, marital status, veteran status, or disability status and welcome applications from all candidates.

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Posted: June 6th, 2026