Software Test Automation Engineer – Amsterdam (hybrid working) 90EURO PER HOUROne of the worlds great ecommerce companies requires an Automaton QA Engineer to join on a freelance basis.You work within a team ensuring quality is built in from inception to customer benefit realisation and throughout the entire product life cycle. You advocate delivering - customer value with minimal waste, and ensure products are usable, accessible, secure, and performant.Key Job Responsibilities and Duties-Embed automation testing in the development process, where applicable- Define and track quality metrics (test coverage, flakiness rate, MTTR, escape rate)- Own test environment management and test data strategies- Support the CI/CD efforts, proposes test automation tooling and infrastructure and work with developers to build and maintain it- Actively contribute to the tech strategy by providing valuable insights on test automation and software quality in general;- Stay up to date with new test automation technology and plan strategically for possible changes- You will go technically deep and design and maintain automated tests across all layers: API, integration, contract, and UI- Build evaluation frameworks - covering success rates, latency, error handling, and graceful degradation when AI-driven systems produce unexpected results- Become the ‘Go to’ person for the test automation topic for both business and tech stakeholders-- Working with development team to understand the business needs and identify the quality requirements- You contribute to incident response and post-mortems with quality-focused root cause analysis- Plan and prioritise the different strategies according to business needs- Evaluate our internal testing tools and introduce new ones with clear migration paths and deprecation plansQualifications & Skills: Qualifications & Skills:- 6-8 years of experience in high technological environment in a similar role- Understanding of non-deterministic systems and ability to design test approaches that use thresholds, scoring, and statistical confidence rather than exact-match assertions- Nice to have: experience in design and maintain test strategies for MCP (Model Context Protocol) tools and the MCP App — covering tool invocation correctness, schema validation, error handling, and end-to-end agent workflows- Proficient in at least one of the following languages (there will be a coding challenge): Java or Javascript- Hands-on experience using AI coding tools (e.g. GitHub Copilot, Cursor, Claude Code, ChatGPT) in daily development workflow - understands how these tools behave, where they break, and what "quality" means when outputs vary between runs- An expert in unit or automation test frameworks like JUnit, TestNG, Mockito, Playwright, Postman, JMeter, REST Assured etc.- Experience developing fully automated CI/CD pipeline, working with CI & source control tools & using Jenkins, GitHub, Gitlab, Octopus, TFS/other.- Experience testing distributed systems at the API/service level (REST, gRPC)- Ability to choose the right test framework in accordance with the needs of the project balancing against trade-offsThis contract offers 90 euro per hour for an initial 3 months (followed by extension) The position requires 2 says a week in the Amsterdam office with the rest of the week working from home.