Expleo is a trusted partner for end‑to‑end, integrated engineering, quality services and management consulting for digital transformation. We help businesses harness unrelenting technological change to successfully deliver innovations that will help them gain a competitive advantage and improve the everyday lives of people around the globe.
We are looking for a highly capable, multi‑disciplined engineer to support the end‑to‑end development, secure configuration, integration, and operation of secure computing products for our client in the Defence sector.
This role combines C# software engineering, secure operating system development, hardware handling, systems integration, and security‑by‑design practices. The engineer will work within a high‑assurance, MOD‑accredited environment involving products certified up to Top Secret baseline.
Responsibilities
* Software Engineering (C# Focus)
o Develop new C# software based on an existing Java codebase.
o Translate and implement Java functionality into C#.
o Provide limited Java support during the transition period.
o Build middleware components, integration layers, and secure software modules.
o Ensure all code conforms to secure‑by‑design and accreditation‑driven standards.
* Secure Operating System Engineering
o Support secure OS build and configuration activities for:
+ Windows 11 secure laptop OS builds
+ Windows Server 2025 virtualised/containerised platform
+ Containerised Linux‑2 environments (future integration)
o Assist with secure image creation, application deployment, lockdown configuration, and privilege control.
o Follow government‑accredited OS hardening and secure configuration guidelines.
* Hardware Engineering Activities
o Build and wire engineering rigs for test and integration.
o Dismantle and modify laptops for secure hardware changes, including:
+ Internal battery removal
+ Storage and memory replacement
+ Basic FPGA module handling
o Adhere to Thales hardware security and handling procedures.
* Networking & Systems Integration
o Support secure network configuration and integration activities.
o Cable and integrate server kits, power amplifiers, logic controllers, and other connected components.
o Assist with system‑level integration between environments.
Qualifications
* Degree (or equivalent experience) in Software Engineering, Computer Science, Cybersecurity, Electronics, or a related discipline.
* Industry experience in secure systems, defence, national security, or high‑assurance environments is advantageous.
Essential Skills
* Strong C# development experience, with the ability to work from and interpret existing Java logic.
* Solid understanding of secure‑by‑design engineering practices.
* Experience with Windows internals, secure OS image creation, or secure deployment processes.
* Basic hardware engineering competency (laptop tear‑down, component replacement, cabling).
* Networking fundamentals applicable to secure system integration.
* Experience with virtualisation and/or container technologies.
* Proven problem‑solving ability and a proactive, full‑lifecycle engineering mindset.
* Ability to operate effectively in MOD‑accredited, high‑ass environments.
Desired Skills
* Experience with government‑accredited secure configuration standards (e.g., NCSC, MOD JSP).
* Familiarity with secure laptop builds, privileged access controls, or FIPS‑accredited hardware.
* Exposure to FPGA modules, hardware security modules, or custom hardware integration.
* Knowledge of Windows Server 2025, Linux containerisation, or mixed‑OS environments.
* Experience in middleware development or system‑level software integration.
What Do I Need Before I Apply
* SC Cleared (mandatory)
* Sole UK National
* Applicants must be legally able to work in the UK and meet security requirements for restricted environments.
Benefits
* Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges.
* We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects.
* Expleo Academy – enables you to acquire and develop the right skills by delivering a suite of accredited training courses.
* Competitive company benefits.
* Always working as one team, our people are not afraid to think big and challenge the status quo.
* As a Disability Confident Committed Employer we have committed to:
o Ensure our recruitment process is inclusive and accessible.
o Communicating and promoting vacancies.
o Offering an interview to disabled people who meet the minimum criteria for the job.
o Anticipating and providing reasonable adjustments as required.
o Supporting any existing employee who acquires a disability or long‑term health condition, enabling them to stay in work at least one activity that will make a difference for disabled people.
We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age.
We treat everyone fairly and equitably across the organisation, including providing any additional support and adjustments needed for everyone to thrive.
Seniority level
* Entry level
Employment type
* Other
Industries
* IT Services and IT Consulting
#J-18808-Ljbffr