> Markdown version of [/jobs/ext/3806697-test-engineer](https://www.wearedevelopers.com/jobs/ext/3806697-test-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Test Engineer - **Company:** Newcastle Partners, L.P. - **Location:** Newcastle, WY, United States - **Contract:** Temporary contract - **Skills:** Java (Programming Language), Agile Methodology, Amazon Web Services, Amazon S3, JIRA, Automation of Tests, Software Bug Management, Continuous Integration, JSON, Apache Maven, Scrum Methodology, Swagger, Selenium, User Interface Testing, Web Content Accessibility Guidelines, Extensible Markup Language (XML), Performance Testing, Postman, Gitlab, Git, SC Clearance, Playwright, Apache Kafka, Restful APIs, Cucumber (Software), Selenium Webdriver, Api Management - **Published:** October 17, 2026 - **Apply:** https://computerjobs.com/us/en/mob/job/2961039B894E8B761A ## About the Role We are looking for an experienced Test Engineer to join an Agile, multidisciplinary team delivering high-quality, citizen-facing digital services for a major UK government department. You will drive quality through UI and API automation, functional validation and accessibility testing, working with cloud-native, microservice and event-driven platforms on public services used by millions of people. The contract is 12 months, hybrid, with 2 days per week on-site. Newcastle is preferred, with London, Leeds, Manchester, Blackpool and Sheffield also possible. Active SC clearance, previously held SC clearance, or SC eligibility is required. ## Description * Design, build and maintain scalable UI and API automation frameworks using Java, Selenium, REST Assured and Cucumber BDD * Develop and run automated functional, regression, integration, end-to-end and risk-based tests * Automate UI testing with Selenium WebDriver and Playwright, and API testing with REST Assured (validation, authentication, schema) * Carry out accessibility testing (WAVE, AXE DevTools, VoiceOver) against WCAG standards * Test AWS (S3, Lambda, DocumentDB) and Kafka event-driven systems * Support CI/CD pipelines for continuous testing, and contribute to performance testing with K6 * Maintain traceability of testing, risks and defects, and report to stakeholders * Work with developers, business analysts and product owners in an Agile team What You Will Ideally Bring: * Active SC clearance, previously held SC, or SC eligible * Strong Java test automation with Selenium WebDriver, REST Assured, Playwright and Cucumber BDD * Building automation frameworks from scratch, with UI and API automation best practices * REST API testing: JSON/XML validation, Postman, Insomnia, Swagger * Accessibility testing (WAVE, AXE, VoiceOver) and WCAG compliance * CI/CD, Git/GitLab and Maven * Agile (Scrum) and defect management in Jira * AWS and Kafka exposure, and performance testing with K6