Haystack
← Back to Jobs
Temporary/Casual
Technology
AA

C++ (with QT) Software Engineer

ARM (Advanced Resource Managers)Bristol, Somerset🇬🇧United KingdomPosted 10 Sept 2026

Why This Role Stands Out

Step into a critical role at ARM, contributing to the next generation of air defence systems by redeveloping a vital software console. This on-site position offers a compelling daily rate and the chance to hone your C++ and QT skills within a reputable defence sector company. You'll thrive here if you're a seasoned C++/QT engineer with SC clearance who enjoys full lifecycle development and impactful projects.

Quick Overview

Seniority
Mid Senior
Employment type
Temporary/Casual
Work mode
On Site
Location
Bristol, Somerset, United Kingdom
C++

Job Description

C++/QT Software Engineer (SC Cleared)
12 Months initial contract
On site in Bristol 5 Days per week
£481 Pay per day (Inside IR35)

*Please note - Due to the nature of the role and the client, the selected candidate MUST HAVE ACTIVE SC clearance and be a Sole British National*

Overview
My client, in the defence sector are looking for an experienced C++/Qt Software Engineer to join a team developing software solutions for the next generation of Air Defence Systems.

You will be responsible for developing a new software Console product to replace an existing system. This is a full redevelopment rather than an upgrade, with the aim of delivering a more maintainable, robust and verifiable software architecture.

Key Responsibilities
Design and develop a new software Console application using C++ and Qt.
Work across the full software development life cycle, from requirements through to automated verification and delivery.
Develop software that meets high standards of reliability, safety and performance.
Produce effective technical documentation throughout the development process.
Work collaboratively with other engineering teams and stakeholders to ensure successful system integration.
Identify and introduce new tools, techniques and approaches to improve development efficiency and sustainability.

Essential Experience
Strong software engineering background, including understanding of software realisation and wider system impact.
Strong commercial experience with C++ and Qt.
Experience working across the full software development life cycle.
Experience working with requirements, development, verification and supporting documentation.
Ability to work independently while collaborating effectively within a wider engineering environment.
Experience developing software within safety-critical, regulated or highly dependable environments.
Active SC clearance.

Desirable Experience
Experience with DDS.
Experience developing multi-threaded applications.
Experience with Ada or other programming languages.
Knowledge of safety-critical standards such as Def Stan 00-55, DO-178C or IEC 61508.
Experience with restricted coding standards such as MISRA C++.
Experience introducing new development tools, techniques or processes.

Disclaimer:

This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited or Advanced Resource Managers Engineering Limited ("ARM"). ARM is a specialist talent acquisition and management consultancy. We provide technical contingency recruitment and a portfolio of more complex resource solutions. Our specialist recruitment divisions cover the entire technical arena, including some of the most economically and strategically important industries in the UK and the world today. We will never send your CV without your permission. Where the role is marked as Outside IR35 in the advertisement this is subject to receipt of a final Status Determination Statement from the end Client and may be subject to change.

Similar jobs