QA Automation Engineer

Company: Harnham
Apply for the QA Automation Engineer
Location: Greater London
Job Description:

QA Automation Engineer

London – 2 days in the office. Up to £60,000 plus benefits.

This is an exciting opportunity to join a high‑growth technology environment where quality engineering plays a central role. You will help shape a modern test automation function, working with advanced tooling, AI‑assisted approaches, and a microservices architecture to improve reliability, performance, and delivery speed.

The Company

They are a fast‑scaling technology business developing an innovative digital product that empowers users through data, behavioural insight, and exceptional user experience design. Their teams work in cross‑functional squads, collaborating closely to deliver a product that is continually evolving. With strong investment and a culture built around innovation, they offer an environment where engineering decisions genuinely influence product outcomes.

The Role

  • Develop and enhance automated test suites to reduce manual testing.
  • Contribute to the delivery of a modern financial technology product in a scale‑up setting.
  • Collaborate with product managers, developers, and QA peers to ensure clarity, consistency, and testability of requirements.
  • Use AI tools to accelerate test creation, debugging, and synthetic data generation.
  • Plan, design, and execute testing across smoke, regression, functional, and performance areas.
  • Create and maintain test documentation.
  • Work within Agile squads, contributing to planning, estimation, and continuous improvement.
  • Support the adoption and expansion of test automation across the wider QA community.

Your Skills and Experience

  • Strong commercial experience in QA automation using Java or Kotlin.
  • Hands‑on use of AI tools to enhance productivity.
  • A deep understanding of OOP principles.
  • Proficiency in HTML, CSS, JavaScript, and modern web architecture.
  • Strong API testing capability using tools such as RestAssured, Feign, Swagger, or Postman.
  • Experience writing UI tests with Selenium, Selenide, or Playwright.
  • Familiarity with TestNG, JUnit, and SQL for data validation.
  • Experience with monitoring and debugging tools such as Sentry or Elasticsearch.
  • Understanding of performance testing concepts and tools like JMeter or Gatling.
  • Experience using test management systems (for example TestRail) and project tools such as Jira and Confluence.
  • Knowledge of CI/CD pipelines, ideally GitHub Actions.
  • Experience working in an Agile, fast‑paced environment, ideally with microservices.

What They Offer

  • Salary up to £60,000 depending on experience.
  • Hybrid working in London.
  • Private healthcare, wellbeing support, and family‑friendly policies.
  • 25 days annual leave plus inclusive, balanced team socials.
  • Pension contributions and optional salary sacrifice arrangements.
  • Support for professional development and access to a modern, welcoming workspace.

How to Apply

If this sounds like the right next step for you, please apply with your CV and we will be in touch.

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Posted: March 21st, 2026