About the role

  • Senior Engineer in Test improving HALOS automated testing strategy and execution across the organisation. Collaborating with teams to ensure quality is built into systems from the start.

Responsibilities

  • Own and evolve HALOS’ automated testing strategy across unit, integration, system, and end-to-end testing.
  • Take responsibility for the quality bar of the platform, ensuring testing is comprehensive, reliable, and scalable.
  • Identify gaps in the current test suite and prioritise improvements that deliver the greatest risk reduction.
  • Champion testing best practices and help embed quality thinking across engineering teams.
  • Design, build, and maintain robust automated testing frameworks with minimal supervision.
  • Extend and improve our existing Typescript Playwright-based end-to-end test suite.
  • Build and maintain integration and API-level tests for Java Spring microservices.
  • Ensure test suites are reliable, fast, and optimised for CI, using metrics and data insights to continuously assess, improve, and scale testing infrastructure.
  • Drive a shift-left approach to quality by working with engineers to introduce testing earlier in the development lifecycle.
  • Partner with developers to improve unit and component-level test coverage where appropriate.
  • Introduce and evolve security testing practices, such as dependency scanning, basic penetration testing, and security-focused test scenarios.
  • Help teams think proactively about failure modes, edge cases, and abuse scenarios.
  • Work closely with our DevOps engineer to design and implement a fully automated release pipeline.
  • Ensure test suites are well-integrated into CI/CD pipelines, providing fast and trustworthy feedback.
  • Define quality gates and release criteria that balance speed with confidence.
  • Improve observability and diagnostics for test failures in automated environments.
  • Test distributed, microservice-based systems running in AWS.
  • Validate service-to-service interactions, asynchronous workflows, and event-driven behaviour.
  • Ensure testing approaches scale as the platform evolves toward a more globally distributed architecture.

Requirements

  • 5+ years’ experience in test engineering or quality-focused engineering roles.
  • Strong engineering background, with hands-on experience writing production-quality test code.
  • Experience testing Java Spring applications and microservice-based architectures.
  • Hands-on experience with end-to-end testing frameworks, ideally Playwright.
  • Experience testing APIs, integrations, and distributed systems.
  • Familiarity with AWS-based environments and cloud-native architectures.
  • Experience working with CI/CD pipelines and automated test execution.
  • Experience designing and building automated test frameworks from scratch or significantly evolving existing ones.
  • Experience implementing or influencing shift-left testing practices.
  • Exposure to security testing concepts and tools.
  • Experience collaborating closely with DevOps or platform engineering teams.
  • Ability to operate autonomously and set testing direction in ambiguous environments.
  • Nice to Have: Experience with performance or load testing.
  • Knowledge of Infrastructure as Code (Terraform or CloudFormation).
  • Experience working in a high-growth startup or scale-up environment.

Benefits

  • Generous Annual Leave Allowance
  • Competitive salary and commission/bonus package
  • Learning and Development opportunities
  • Private Health Insurance
  • Cycle to work scheme
  • Home & Tech scheme
  • Regular company events and social initiatives

Job title

Senior Engineer in Test

Job type

Experience level

Senior

Salary

Not specified

Degree requirement

Bachelor's Degree

Location requirements

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