Senior Quality Engineer / Test Automation Specialist

We are looking for experienced Senior Quality Engineers / Test Automation Specialists to join our team in long-term assignments. You will help ensure the quality, stability and performance of Point of Sale (POS) and checkout solutions in a complex technical environment. The role combines hands-on testing with technical ownership of quality. You will work across payment systems, integrations, hardware and backend services. You will design and automate end-to-end tests and drive technical issues from investigation to resolution, working closely with development teams, technical stakeholders and external vendors. Design, develop, execute and automate end-to-end tests across POS systems, payment solutions, integrations, hardware and backend services Perform hands-on testing in physical POS and test environments Investigate and troubleshoot complex issues across software, hardware and distributed systems Develop, maintain and improve automated test frameworks and test coverage Define and implement test strategies that ensure high-quality delivery Maintain quality documentation, test results and release readiness Collaborate with development teams, technical stakeholders and external vendors Take ownership of quality assurance throughout the development lifecycle 7+ years of experience in Quality Engineering, test automation or complex system testing Strong experience with POS systems, checkout solutions and payment integrations Advanced knowledge of end-to-end, integration, system and automated testing Experience with API testing and CI/CD environments Strong troubleshooting skills across software, hardware, integrations, logs and distributed systems Practical experience from physical test environments involving hardware and software integrations Proven ability to independently define test strategies and drive automation Experience collaborating with multiple engineering teams and external vendors Proficiency in English and advanced Swedish Nice to Have Experience with card payment terminals, payment service providers or checkout hardware Experience with automation frameworks such as Playwright, Selenium, Cypress or similar Coding or scripting experience in Java, Python, JavaScript or C# ISTQB certification Are independent and proactive, and take ownership to drive work forward Are analytical and solution-oriented, with strong troubleshooting skills Combine strategic quality thinking with hands-on execution Are communicative and comfortable working with different technical teams and stakeholders Are structured, quality-driven and focused on continuous improvement