Senior Systems Integration & Test Engineer
Job description
Original text imported from Reed
Description
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
- Responsible to 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.
- Must be a dynamic, innovative, self-starting problem solver that can operate with minimal supervision.
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).
- 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.
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:
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You will be required to gain UK SC (Security Clearance) for this role.
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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 agrowing 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 growthwhilst 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 missionKey skills
AI-extracted from the job advert
Application advice
5 AI-generated recommendations to maximise your chances.
⭐ Highlight your Systems Integration Testing experience prominently in your Personal Statement, as the advert lists it as a core requirement and references integrating 3rd party systems specifically.
📊 Quantify your test coverage: e.g. 'Designed 350+ test cases covering 12 integrated 3rd party components, reducing post-release defects by 40%'.
🎯 Name the specific tools you have used (Katalon Studio, Selenium, SoapUI, JUnit) in a dedicated Skills section — the advert lists these verbatim and ATS systems will scan for exact matches.
🌐 Reference any experience in regulated or security-cleared environments (e.g. defence, government, critical national infrastructure) as the programme supports National Security missions — this is a strong differentiator.
🤝 Demonstrate Agile/Scrum participation explicitly: mention daily scrums, sprint planning, and Jira backlog management to align with the scrum team contribution described in the advert.
Suggested CV bullets
3 bullets our AI drafted for this specific advert, mirroring its ATS keywords.
Add these 3 bullets under your most recent experience:
- •Designed and maintained 400+ automated test scripts using Selenium and SoapUI for a 12-component 3rd party integration programme, reducing regression cycle time from 5 days to 18 hours.
- •Led risk-based test planning across a regulated government programme, identifying 23 critical defects pre-release and achieving zero P1 incidents in 3 consecutive production deployments.
- •Contributed to a 6-person scrum team using Jira for backlog management and BitBucket for version control, supporting CI/CD pipeline integration that cut manual test effort by 35%.
Free to copy — tailoring requires a 30-sec CV upload.
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Letter preview — tailored to Appcast Enterprise
Dear Hiring Manager,
Leidos' flagship National Security programme represents precisely the kind of complex, high-stakes integration challenge I have built my career around — which is why I am applying for the Senior Systems Integration & Test Engineer position in Whiteley. With hands-on experience designing risk-based test approaches and developing automation frameworks using Selenium and Katalon Studio, I am confident I can deliver robust test assurance across your change pipeline from day one.
My background in systems integration testing spans regulated environments where I have created comprehensive test cases from requirements and design documents, managed defect tracking in Jira, and contributed actively to scrum ceremonies including daily stand-ups and sprint reviews. I have integrated 3rd party components into large-scale systems and applied both manual and automated techniques to validate functional and non-functional requirements, including performance benchmarking of integrated services.
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Interview questions
10 questions generated from this advert.
Technical
- ›Walk us through how you design a risk-based test approach from a set of requirements documents — what steps do you follow?
- ›How have you integrated 3rd party systems or components in a previous role, and what testing challenges did that present?
- ›Describe your experience with test automation frameworks such as Selenium or Katalon Studio — how did you decide what to automate versus test manually?
- ›How do you approach performance testing for a large-scale integrated system, and which tools have you used to measure results?
- ›Explain how you would set up a CI/CD pipeline to support automated regression testing in a hybrid Waterfall/Agile environment.
Behavioural
- ›Tell me about a time you identified a significant gap or inefficiency in an existing test process — what did you do and what was the outcome?
- ›Describe a situation where you had to communicate complex technical test findings to a non-technical stakeholder. How did you approach it?
- ›Give an example of when you worked independently with minimal supervision on a high-stakes testing task. How did you manage priorities and risks?
- ›Tell me about a time you uncovered a critical defect late in the test cycle. How did you handle the situation and what was the impact?
- ›Describe a situation where you had to collaborate across multiple teams (developers, test leads, business stakeholders) to deliver a test regime on time.
STAR answer examples
Model answers using the Situation-Task-Action-Result framework. Adapt to your own experience.
Tell me about a time you identified a significant gap or inefficiency in an existing test process — what did you do and what was the outcome?
Describe a situation where you had to communicate complex technical test findings to a non-technical stakeholder. How did you approach it?