Senior Test Engineer (SE2/TC)

CACI Limited; Bristol; On-site; GBP 70,000 - 90,000; Full time

Benefits offered by this job

Hybrid working

Conference & training budget

Pension & health care

25 days holiday + bank holidays

Job summary

CACI Limited is seeking a Senior Test Automation Engineer to join our Information Intelligence Group on one of our public sector streams in Bristol. You will drive automated testing within fast-paced, agile teams, delivering UI and API tests across AWS cloud environments and CI/CD lifecycles.

You will design scalable automation frameworks, apply TDD/BDD, and collaborate with developers and product owners to ensure quality outcomes.

Qualifications

• Proven experience in test automation engineering with strong hands‑on Java and Selenium WebDriver.
• Experience designing, developing and maintaining scalable UI and API automation frameworks using open-source tools.
• Commercial experience with AWS cloud environments and testing cloud-native applications.
• Practical experience in Agile and DevOps teams, applying TDD, BDD and continuous testing.
• Strong understanding of functional, integration, regression, end-to-end, exploratory and API testing.

Responsibilities

• Design, build, and execute automated UI and API test frameworks across complex delivery programmes.
• Develop tests in AWS cloud environments and validate cloud-based applications and integrations.
• Integrate automated testing into CI/CD pipelines for reliable software delivery.
• Collaborate with Developers, BAs, POs and delivery teams to define test scenarios and acceptance criteria.
• Contribute to QA process improvements, automation frameworks, tooling and standards.

Skills

Java

Selenium WebDriver

AWS

CI/CD

TDD/BDD/ATDD

Agile/DevOps

UI testing

API testing

Gherkin/Cucumber

Tools

Selenium WebDriver

Playwright

Cypress

WebdriverIO

Robot Framework

Rest Assured

Jira

Confluence

Job description

Posted Friday 10 July 2026 at 00:00 | Expires Friday 28 August 2026 at 23:59

Role: Senior Test Automation Engineer

Job Type: Permanent

We are the Information Intelligence Group (IIG) of CACI UK, a specialist software consultancy providing new bespoke solutions to solve our customers complex operational problems. As our business continues to grow, we are interested in speaking with an experienced Senior Test Automation Engineer to join one of our live projects in our public sector streams.

At IIG, we’re looking for talent that can keep up with our clients’ challenges and work effectively in fast paces, complex environments. We value intelligence and fast learners, flexibility and excitement about tackling every new opportunity. Our work is highly collaborative, so friendly relationship builders are vital to our teams. The core tech stack for this role is Java, Selenium & AWS.

Due to nature of the sector this role would be part of, we require all our team to be able to obtain high level security clearance. To qualify for this, you must be a British passport holder only and have lived permanently in the UK for the last 5 years.

The Role:

As a Senior Test Engineer, you will join one of our, fast-paced, agile delivery teams. Working on one of our in flight projects, you will play a key role to ensure continuous automated testing is implemented, early and often, as a part of a CI/CD lifecycle.

Testing at IIG consists of a wide range of responsibilities, the list below gives a flavour of some of the tasks you may be asked to undertake;

• Design, build, and execute automated UI and API test frameworks to support quality assurance across complex digital delivery programmes.
• Perform testing within AWS cloud environments, validating cloud-based applications, services, and integrations.
• Work within Agile and DevOps teams, applying TDD, BDD, ATDD, and continuous testing practices throughout the software development lifecycle.

Integrate automated testing into CI/CD pipelines, ensuring efficient, reliable, and repeatable software delivery.

Deliver automation using other technologies such as Selenium, Playwright, Cypress, WebdriverIO, Cucumber, Serenity BDD, Robot Framework, and Rest Assured.

Execute functional, integration, regression, and end-to-end testing, supported by manual and exploratory testing where appropriate.

Collaborate with Developers, Business Analysts, Product Owners, and wider delivery teams to define test scenarios, acceptance criteria, and quality outcomes.

Contribute to the continuous improvement of QA processes, automation frameworks, tooling, and testing standards across projects.

Experience/Skills required:

Our Test Engineers enjoy working on a variety of interesting and challenging projects, so we want our team to have a proactive and can-do attitude to our work. We pride ourselves on keeping up with emerging technologies and deliver best-practice, so it is important that you enjoy learning and continuous improvement.

Proven experience in test automation engineering, with strong hands‑on expertise in Java and Selenium WebDriver.

Experience designing, developing and maintaining scalable UI and API automation frameworks using industry-standard open-source tools.

Commercial experience/certification with AWS cloud environments and experience testing cloud-native applications, services and integrations.

Practical experience working within Agile and DevOps delivery teams, applying TDD, BDD, ATDD and continuous testing principles.

Strong understanding of software testing methodologies, including functional, integration, regression, end-to-end, exploratory and API testing.

• Experience working in Agile & ideally with Gherkin, Cucumber
• Extensive working experience with Jira, Confluence.

Why work for us?

• Hybrid working: Work from one of our offices or from home / travel to customer sites
• L&D: Budget for conferences, training courses and other materials.
• Social: Fantastic culture with monthly social events.
• Future You: Matched pension and health care package.
• 25 days holiday + UK Bank Holidays

We offer a great L&D package including up to 5 days external training, a career coach and guilds to share innovation and learning. We also offer self-directed career progression, that fosters opportunities for success for us and our business.

CACI is proud to be an equal opportunities employer. Embracing the diversity of our people, we are on a journey to build a truly inclusive work environment where no one is treated less favourably due to ethnic origin, age, gender, veteran status, religion or belief, sexual orientation, marital status, and disability or health condition, actively working to prevent discrimination.

As a Disability Confident employer, we will;

• Provide reasonable adjustments in the recruitment process where requested (contact a member of the recruitment team on 020 7602 6000 to discuss individual requirements further).
• Offer people with health conditions and disabilities, meeting the minimum criteria for a role, an interview.