Overview
Expleois 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 seeking a Test Systems Software Engineer to join a specialist Test Engineering Software group supporting the design, development and sustainment of engineering test equipment used to validate complex defence systems and sub-assemblies.
This role focuses on developing robust, maintainable software for test equipment and engineering test solutions across the full product lifecycle, from early concept and prototyping through to production and in-service support. You will work in a software engineering lab environment closely integrated with electronics, instrumentation and hardware teams, collaborating across multiple engineering disciplines to deliver high-quality, reliable test capability to meet programme delivery schedules.
This position suits a hands‑on software engineer who enjoys working at the intersection of software, hardware and electronics rather than purely desktop or web‑based development.
Responsibilities
* Design and develop software for automated and semi‑automated engineering test systems
* Implement test solutions using C, C++, C# and appropriate scripting languages
* Develop software to interface with instrumentation, data acquisition devices and custom electronic hardware
* Integrate software with communications and control interfaces (Ethernet, serial, field buses, etc.)
* Support hardware bring‑up, system integration, debugging and fault‑finding activities in lab environments
* Create modular, maintainable and reusable test frameworks and architectures
* Apply software engineering best practices including unit testing, code reviews and continuous integration
* Contribute to automation, build pipelines and DevOps workflows
* Produce technical documentation, requirements traceability and test artefacts
* Collaborate with systems, electronics, firmware and production teams to define and deliver test capability
* Support issue resolution and ongoing improvement of deployed test systems
Qualifications
* Degree (or equivalent experience) in Software Engineering, Computer Science, Electronic Engineering or a related technical discipline.
Essential skills
* Strong programming skills in C/C++ and/or C#
* Experience developing software for test, instrumentation or hardware‑integrated systems
* Understanding of automated test principles and engineering test methodologies
* Experience with LabWindows/CVI, NI TestStand, or similar test frameworks
* Familiarity with serial and network communications (RS232/422/485, Ethernet, CAN, Modbus, 1553, etc.)
* Practical debugging and fault‑finding skills in lab environments
* Knowledge of software quality practices (unit testing, clean design, version control, CI/CD)
* Ability to read schematics and work alongside electronics hardware
* Strong problem‑solving and analytical capability
* Effective communication and cross‑functional collaboration skills.
Desired skills
* Electronics or embedded systems knowledge
* Experience with automated test equipment (ATE) architectures
* Hardware control and data acquisition integration (DAQ, PXI, GPIB, VISA, etc.)
* Scripting languages (Python, PowerShell or similar)
* Continuous integration/build tooling and DevOps practices
* Experience working within regulated or safety‑critical industries (defence, aerospace, automotive, medical)
* Exposure to Agile/Scrum environments
Experience
* Proven experience developing software for engineering or hardware‑integrated systems
* Experience delivering test systems or manufacturing/production test solutions preferred
* Experience working across the full development lifecycle from concept through deployment and support
* Experience working within multi‑disciplinary engineering teams.
What do I need before I apply
* Eligibility and willingness to obtain SC Clearance (Security Check Clearance) is essential.
Benefits
* Collaborative working environment – we stand shoulder to shoulder with our clients and ourpeers 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
* ExpleoAcademy – 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
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