Job Title: Automation Tester Location: Remote (occasional on-site meetings possible - Middlesbrough office) Day Rate: £350 - £400 (Inside IR35) Start Date: November 2025 The Automation Tester will be responsible for developing, maintaining, and executing automated test suites across UI and API layers, ensuring consistent and reliable quality across releases. Job Responsibilities/Objectives: Develop and maintain automated test scripts for web and API testing. Design, build, and maintain robust test automation frameworks (e.g., BDD using SpecFlow, Cucumber, or Reqnroll). Collaborate closely with developers and business analysts to ensure comprehensive test coverage. Validate structured data formats (XML, JSON, CSV) using XPath, JSONPath, and schema validation techniques. Execute and report on automated test runs through CI/CD pipelines. Support integration of test automation within DevOps workflows. Maintain traceability between automated tests and user stories or requirements. Participate in Agile ceremonies and contribute to continuous improvement efforts. Required Skills/Experience The ideal candidate will have the following: Strong experience with UI test automation tools such as Selenium and/or Playwright. Proficiency in C#, Java, Python, or another major language used for test automation. Hands-on experience designing and maintaining test frameworks. Experience testing REST APIs using tools such as Postman, Playwright API fixtures, or other HTTP client frameworks. Working knowledge of version control systems (Git, GitHub, Azure Repos). Understanding of CI/CD pipelines (Azure DevOps, Jenkins, GitHub Actions). Experience with test management tools (Zephyr, Jira, TestRail, Azure Test Plans). Familiarity with defect management and Agile delivery practices. Strong understanding of risk-based testing and test design techniques. If you are interested in this opportunity, please apply now with your updated CV in Microsoft Word/PDF format. Disclaimer: Notwithstanding any guidelines given to level of experience sought, we will consider candidates from outside this range if they can demonstrate the necessary competencies. Square One is acting as both an employment agency and an employment business, and is an equal opportunities recruitment business. Square One embraces diversity and will treat everyone equally. Please see our website for our full diversity statement.