Integration Test Engineer - ATM

Leidos; Whiteley; On-site; GBP 37,000 - 46,000; Full time

Benefits offered by this job

Contributory Pension Scheme

Private Medical Insurance

33 days annual leave

Flexi-Time Working

Job summary

Leidos UK is seeking an Integration Test Engineer to help deliver a large-scale systems integration programme. You will design, write and execute test cases, interface with customer stakeholders, and work in a multi-disciplinary team to ensure end-to-end quality across software products and infrastructure.

The role requires ISTQB/ISEB cert, ability to work on-site 2–3 days a week, and strong knowledge of testing life cycles including functional, non-functional and integration testing.

Qualifications

• ISTQB/ISEB Foundation Certificate in software testing.
• Ability to work onsite 2–3 days per week.
• Excellent understanding of Testing Lifecycle and testing types (Functional, Non-Functional, Integration).
• Experience with 1GL–3GL languages (e.g., Ada, C, C++, Java) and with Linux environments.

Responsibilities

• Design, write and execute test cases based on requirements and design docs.
• Document test results and defects, report progress, risks and issues.
• Investigate issues with suppliers to identify root cause and resolution.
• Analyse data and test evidence to demonstrate compliance to requirements.

Skills

ISTQB/ISEB Foundation Certificate

Education

ISTQB/ISEB Foundation Certificate in software testing

Tools

Ada/C/C++

Linux

Job description

Integration Test Engineer - ATM Location: This is a Hybrid role. Whiteley, Hampshire Clearance Required: This role will require attainment and maintenance of SC clearance We are looking for an Integration Tester to join our team to help us deliver a large-scale systems integration programme.

As part of a multi discipline team the successful candidate will be responsible for the design, writing and execution of test cases, as assigned by the Test Lead.

The successful candidate will interface with multiple teams, and with Customer stakeholders to create and execute tests.

The role will require the ability to effectively communicate with all members of the team, ranging from technical personnel to programme leadership.

The role includes executing tests across a variety of software products, their interfaces and network & infrastructure configurations, and identifying and managing resulting defects.

What will I be doing?

Generating Test Cases by reviewing requirements and design documentation, liaising with SMEs, suppliers and stakeholders Documenting of test results and any defects/reporting progress, risks & issues Investigating issues and working with suppliers to identify root cause and resolution Analysing data, large datasets and test evidence from suppliers to show compliance to requirements Identifying improvements in new and existing processes.

What does Leidos need from me?

• ISTQB/ISEB Foundation Certificate in software testing
• Ability to work onsite 2-3 days per week
• Excellent understanding of Testing Lifecycle and the different types of testing such as Functional, Non-Functional and Integration Testing
• Proven track record in developing Software solutions using 1st (1GL) through 3rd (3GL) generation languages (e.g. ADA 83/95, C, C++)
• Proven Experience using Waterfall and V model development models
• Proven experience delivering solutions on Linux type operating systems
• Experience of using development environments related to 1GL through 3GL generation Languages
• Able to estimate and plan own immediate tasks and manage their completion
• Good oral and written communication skills, confident in technical and non-technical discussions
• Good time management and organisational skills – ability to work with minimal supervision
• Enthusiastic, proactive, troubleshooting attitude with a willingness to learn new technologies
• Experience of creating Test Cases based on requirements and design documents

Preferred Experience

• Experience of Other Software Development Techniques like Agile development (e.g. Scrum)
• Experience of delivering real-time and/or safety-related software
• Knowledge of modelling languages (e.g. SysML, UML)
• Knowledge of procedural and object orientated software development languages (e.g. Ada, C, C++ & Java)
• Knowledge of scripting languages (e.g. Python)
• Knowledge of COTS integration technologies (e.g. Apache)
• Working with large-scale and complex integration programmes
• Experience with service oriented architecture
• ATM knowledge would be advantageous but is not a pre-requisite

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 and much more!)
• 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 front line 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

£36,900.00-£46,100.00 The 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.

Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers.

Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address.

If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.