Job Description
Design high-integrity C++ software for mission-critical defence systems.
Work in a collaborative, forward-thinking team using modern C++ (C++17/20) to build resilient solutions for real-world operational platforms. You’ll help implement automated test pipelines, contribute to secure software design, and deliver to the highest engineering standards in a fast-paced, Agile development environment. Hybrid working is available from Reading or Crawley, and you’ll be contributing to a long-term UK programme with national-level importance.
Location: Reading or Crawley (Hybrid Working)
Security Clearance: Must be eligible for UK SC Clearance
Experience Level: 5+ years
Key Responsibilities
* Develop and maintain software using C++17 or C++20 and Python in a Linux-based environment
* Create and integrate automated test frameworks as part of CI/CD pipelines
* Work with multi-threaded systems and modern build systems such as CMake
* Implement secure, scalable features following safety/security-conscious development principles
* Collaborate within a Scrum-based Agile team using tools like JIRA and Confluence
* Contribute to technical documentation, configuration management and version control using GIT
* Support ongoing improvements to code quality using tools like Coverity or SonarQube
Qualifications
Required Skills
* Strong experience with modern C++ (17 minimum, 20 preferred) and Python
* Comfortable developing in Linux (e.g. RHEL 8.10+) and using CMake
* Experience with unit testing (e.g. GoogleTest) and CI/CD tooling (e.g. Jenkins, Bitbucket)
* Experience with WebSockets, SNMP, or other communication protocols
* Familiarity with Agile methodologies and working in structured, safety-critical environments
* Confident working with multi-threaded software in a collaborative team setting
Desirable Skills
* Experience with embedded systems or low-level driver development
* Exposure to UML modelling tools (e.g. Enterprise Architect)
* Familiarity with CyberSecurity tools (SAST/DAST/SCA) and secure coding standards
* Awareness of containerisation (e.g. Docker) and software traceability practices
Required Qualifications
* A Bachelor’s or Master’s degree in Software Engineering, Computer Science, or related discipline
* OR a relevant technical military background with equivalent hands-on engineering experience
* Must be eligible for UK SC Security Clearance (Minimum 5 Years in the UK)
Additional Information
Why join us?
We foster a community of dually talented individuals who are both entrepreneurs and technology specialists. Our teams embody the spirit of innovation and entrepreneurship, enabling us to develop solutions most efficiently.
Our commitment to sustainable growth is unwavering, and we continuously strive for accelerated transformation and continuous improvement. Through ALTEN labs, mentoring programs, internal universities, and more, we are always pushing boundaries and embracing new possibilities.
We offer incredible opportunities to join inspiring projects in the most innovative companies.
We prioritise your career development with personalised support plans tailored to your own aspirations. We're here to empower you and help you reach your full potential.
Join our passionate team and start building tomorrow, today!
In short you get:
* A personalised career path and a rewarding management style
* A chance to work on the most exciting engineering projects and technologies along with Premium Customers
* A huge diversity of engineering projects and industries
* A competitive salary
* Private Medical Insurance
* Pension Scheme
* Cycle-to-work Scheme among many additional benefits
* Social atmosphere, regular gatherings, and team buildings
* Flexible way of working (role dependent)