Senior QA Automation Engineer (Playwright)

Senior QA Engineer Senior QA Automation Engineer at Mangopay: own API test automation (Playwright/TS), drive release quality, performance KPIs, and cross‑team QA excellence. Mangopay is a wallet-based payment infrastructure built specifically for organisations with complex, multi-party fund flows. A pioneer in multi-party payments. Our solution optimises fund flows on behalf of the organisations we work with using wallets as programmable, composable building blocks. Mangopay’s regulated platform collects payments, secures transactions and holds funds, splits money between the various parties in the funds flow, and ultimately manages the payout to service providers, sellers, and consumers. Platforms and fintechs using Mangopay regain control and transparency over multi-party payment flows , generate additional revenue, and improve operational efficiency. They can stay compliant while innovating and scaling. Job Description To support the strong growth of our business and the scaling up of our modular payments platform, MANGOPAY is expanding and looking for a Senior QA Automation Engineer . As a member of one of our squads, you will be responsible for representing QA. You will collaborate closely with Product and Development representatives. You will serve as the quality advocate within your squad. Our different squads work on various functional areas of our platform through technical or product initiatives that make up our roadmap. Your role will be to contribute to your squad’s roadmap while considering QA needs and objectives. This includes improving and facilitating deliverables and providing a clear picture of the product’s quality. What will you be responsible for? Ensuring clarity of the quality of a release as well as the follow-up of identified problems Leading the implementation and maintenance of automated functional and non-functional testing (involves APIs) Research and identification of new automation solutions, tools, and processes to improve the existing ones Sharing best practices with the PM/DEV team by taking a cross-functional view of QA Ensuring the follow-up of production releases as well as events that may occur Ensuring the implementation and monitoring of performance KPIs for production Technical stack : Playwright, K6, Postman Datadog, Elasticsearch (Kibana, Elastalert), Grafana Git (Gitlab), TeamCity, Octopus Deploy Jira, XRay for Jira What do we expect from you? 5 years of experience as an Automation QA Engineer Experience in API testing Extensive knowledge of TS/JS Experience using test frameworks such as Playwright (mandatory at least 3 years) , k6 (would be a plus), Cypress would be optional Experience with C# would be ideal Agile QA mindset: working in an Agile context is important to you Strong knowledge of testing best practices: familiar with the ‘Test Pyramid’ and ‘Test Quadrants’ Experience with reporting and monitoring aspects Excellent analytical skills, autonomy, and attention to detail English is mandatory for this role Our budget for this role: Standard contract: 15.000PLN /18.000 PLN gross monthly B2B: 16.000 PLN / 18.000 PLN netto + VAT monthly + 30 paid days non service Département Technology Locations Mangopay Poland - Warsaw Remote status Hybrid Employment type Full-time About Mangopay Founded in 2013, Mangopay is the wallet-first infrastructure for multi-party payment flows, designed to give platforms the control, scalability, and revenue opportunities they need to thrive. Mangopay offers programmable wallets that mirror real-world multi-party experiences, enabling platforms to hold, split, and move funds across buyers, sellers, and partners, while unlocking new monetization streams. With over €160 billion processed, 700 million wallets created, and 350 million users onboarded, Mangopay has demonstrated scale and reliability. Leading platforms like Vinted, Mirakl, Wallapop, Chrono24, and Debenhams use Mangopay to power complex flows, double transaction volumes, and streamline global operations. Founded in 2013 Coworkers 300