Job Description
Automation Test Engineer Hybrid Working - London - 2 days a week on site. Financial Services Lorien's leading banking client is looking for a skilled Automation Test Engineer with strong experience of with Rest API testing in Java to join our London-based team. The ideal candidate will have strong experience of working with CI/CD Environments, Rest API And Kafka Events.This role is based in London. This role will be Via Umbrella. Working in a Hybrid Model of 2 days a week on site. Experience & Ways of Working
* Hands-on experience with Continuous Integration and Continuous Delivery (CI/CD) environments.
* Experience working in TDD and BDD-driven teams, applying Red-Green-Refactor practices.
* Experience with pair programming and close collaboration with developers.
* Experience in performance engineering, supporting profiling and tuning to identify performance hotspots and prevent regressions early.
* Monitor and analyse p95/p99 latency trends to ensure performance stability and help identify regressions introduced by changes.
* Exposure to accessibility testing and usability considerations, ensuring inclusive and user-friendly experiences.
* Comfortable working in highly collaborative environments, where development and testing happen alongside the engineering community.
Quality Engineering Responsibilities
* Implement and maintain TDD-aligned unit tests, component/integration tests, and consumer-driven contract tests (PACT) for REST APIs and Kafka events.
* Curate a minimal, meaningful end-to-end (E2E) test suite for critical user journeys and actively eliminate flaky tests.
* Plan and execute exploratory testing using charters, and convert valuable, repeatable findings into automated tests.
* Monitor and continuously improve pipeline health (flakiness, execution time, stability) and overall test effectiveness.
* Apply systems thinking, a bias for small tests, strong facilitation skills, clear written communication, and pragmatic decision-making.
* Partner with product and engineering to convert requirements into clear, testable acceptance criteria and executable examples.
* Integrate security checks (SAST, dependency/SBOM) into CI pipelines and work with teams to drive remediation.
* Support operational readiness by helping maintain runbooks and observability standards.
* Coach engineers in XP practices (pairing, refactoring, trunk-based development) and foster a continuous learning culture.
Tools & Technologies:
Java Testing:
JUnit 5, Mockito, AssertJ, PIT (mutation testing), WireMock (where appropriate).
BDD:
Cucumber, Karate (behaviour-driven and API-focused testing).
Frontend Testing:
Playwright (thin end-to-end coverage) ReactJS testing library.
Contract Testing:
PACT (REST APIs and Kafka events), Pact Broker.
Performance Testing:
k6 or Gatling (performance smoke tests and baseline validation).
CI/CD & Delivery:
GitLab CI; feature flagging using LaunchDarkly.
Guidant, Carbon60, Lorien & SRG - The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.