Senior Systems Integration & Test Engineer
Confirmed on the employer's own hiring board on Oct 11, 2026. First seen by Alion on Oct 8, 2026. Leidos scores A on the Alion truth index.
Senior Systems Integration & Test Engineer
Location: Whiteley, with flexibility to work from home dependent on business demands
Salary: £61,500 - £78,800
The Role:
We currently have a vacancy for a Senior Integration and Test Engineer working on a flagship programme in the UK.
The role will include responsibility for Designing, Development and Maintenance of test scripts and Test Reporting using both industry standard Manual and Automation test suites and custom developed frameworks.
The testing process will follow a hybrid Waterfall and Agile development and release process that supports critical customer mission goals around National Security using manual and automated testing techniques and tools.
This person will be responsible for conducting analysis of requirements and designs, and from this developing a risk-based test approach to provide test assurance in support of our change pipeline. You may also support business process improvements or systems analysis for missions, systems, and fiscal requirements
What will I be doing?
- Work independently, or with a team of software and systems engineers; must be knowledgeable in industry-standard testing tools and methodologies.
- Responsible for analysis of requirements and design material and the creation of test Designs, Test Cases & Procedures and identify Test Data, Tooling and Environmental needs
- Working with Test Leads, fellows test engineers and other stakeholders in planning, executing and reporting on test regimes
- Contribute to the scrum teams, participate in daily scrums, and be proactive on work tasks and obstacle resolution.
What does Leidos need from me?
- Excellent understanding of the Testing Lifecycle and the different types of testing such as Functional and Integration Testing.
- Demonstrable Systems Integration experience including integrating 3rd party systems or components.
- Able to understand existing Test Process and identify improvements and efficiencies.
- Experience of creating Test Cases based on requirements and design documents.
- Knowledge or experience with software testing frameworks (e.g. Katalon Studio, Selenium, SoapUI, Junit, DART, or similar).
- Knowledge or experience Agile workload management and bug tracking (e.g. Jira, BitBucket, or similar).
- Knowledge of Xray test management tool.
- Experience working in a regulated environment testing.
- Strong oral and written communication skills - ability to communicate with technical and non-technical team members.
- Self-motivated and willing to speak to colleagues to find out missing information.
- Must be a dynamic, innovative, self-starting problem solver that can operate with minimal supervision.
Desired Skills and Experience:
- Working with large-scale and complex integration programmes.
- Performance testing and measurement of integrated systems.
- Organizing/supporting user acceptance testing (UAT) prior to Production deployment.
- Continuous Integration/Continuous Delivery tools.
- Negative testing concepts and risk assessment reporting.
Clearance Requirements:
- You will be required to gain UK SC (Security Clearance) for this role.
- To be eligible for this role you must have UK Citizenship and been a resident in the UK for minimum 5 years.
What we do for you:
At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance.
We provide an employment package that attracts, develops and retains only the best in talent. Our reward scheme includes:
- Contributory Pension Scheme
- Private Medical Insurance
- 33 days Annual Leave (including public and privilege holidays)
- Access to Flexible benefits (including life assurance, health schemes, gym memberships, annual buy and sell holidays and a cycle to work scheme)
- Flexi-Time Working
Commitment to Diversity:
We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming all perspectives and contributions, and providing equal access to opportunities and resources for everyone. If you have a disability or need any reasonable adjustments during the application and selection stages please let us know, and we will respond in a way that best fits your needs.
Who We Are:
Leidos UK & EUROPE - we work to make the world safer, healthier, and more efficient through technology, engineering and science.
Leidos is a growing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services, our work in the United Kingdom includes addressing some of the most complex problems in defence, healthcare, government, safety and security, and transportation.
What Makes Us Different:
Purpose: you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning, AI, cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world. You can inspire change.
Collaboration: having flexibility to do your job is one of our core benefits, enabling you to become part of our extraordinary team. We have been empowering our people to work flexibly for years. Whether you work from home, the office or on customer sites, we will give you the digital tools and the flexibility to work smarter and align your needs and ours.
People: Leidos empowers people from every background to be themselves and gives you the tools to learn new skills by enabling growth whilst developing. We believe that extraordinary people need opportunities to grow, to be inspired and to inspire others. At Leidos, we invest in technical academies, career rotations and a career development plans that enhance your future.
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
£61,500.00-£78,800.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.