Senior QA Engineer

About Keystone AI At Keystone AI , we're on a mission to democratise global finance and empower businesses in Emerging Markets to reach the world. Founded by British-Nigerian entrepreneurs Ola Oyetayo and Anthony Oduu, our roots in Africa provided a firsthand understanding of the significant challenges businesses face with cross-border payments, ranging from illiquid currencies and high fees to slow transactions. This deep-rooted insight is why Africa remains a core focus, as we're committed to bridging the gap between emerging and developed markets and fostering global economic growth. What started as an FX solution for the Nigerian Naira has evolved into a market-leading platform, enabling thousands of businesses to seamlessly transfer billions of dollars annually. We believe that where you do business shouldn’t determine your success or ability to scale. We're creating equal access to the easy payment and liquidity solutions that are already a given in developed markets. We're not alone in realising this crucial need; we're backed by world-class investors including Y-Combinator, Quona, and MEVP. With Keystone AI receiving the Milken-Motsepe Prize, appearing on CNBCs list of fastest growing UK companies, the Deloitte Fast 50 and Sifted’s fastest-growing UK tech companies, we are building a seamless cross-border payment future. Join us as we continue to grow and transform global finance. Role Overview You'll be crucial in ensuring Keystone AI 's platform is robust, reliable, and user-friendly. You will collaborate closely with various teams to maintain and enhance software quality, ultimately delivering a seamless user experience. We are seeking a talented and motivated Senior QA Engineer to join our growing team. What You’ll Be Doing Own end-to-end QA for specific payments features on our cross-border platform, ensuring full test coverage and release readiness. Design and execute comprehensive test plans across web/mobile (functional, regression, integration, and exploratory). Help build, maintain, and run automated test suites to improve release confidence. Find, document, and debug defects through their entire lifecycle alongside developers. Collaborate with PMs, engineering, and other QE teams within an Agile environment (sprints, refinements, retros). Validate APIs and database integrations, and support post-release verification activities. What You Need University degree in Computer Science, Engineering, or a related field. 4+ years of professional QA experience, with a proven ability to deliver independently. Hands-on experience using automation for UI, API, and mobile testing. Proficient with JIRA for defect tracking and TestRail for test case management. Deep knowledge of QA methodologies, defect lifecycle management, and troubleshooting. Sharp analytical skills, high attention to detail, and excellent communication. Best If You Have Experience with fintech products Worked in an early stage or growing stage start-up Majority experience with product-based companies Hands-on experience with Playwright, TypeScript, or Python. Experience with non-functional testin g (Load, Stress, and Usability testing). About the Interview Process It will have a a video assignment, a test, chat with the talent team, an interview with a QA Lead and final round with our Head of Growth Engineering Life At Keystone AI Perks Insurance paid by the company Health and wellness benefits (with specific added benefits depending on the location of the role) Yearly salary review based on inflation, personal and business performance Access to entire Udemy’s library Budget for professional development courses Work-From-Anywhere policy for certain durations Integration programme (opportunity to work from our global offices) Regular team social events Pension scheme (depending on the role location) Flexible work arrangements Exposure to work with globally distributed teams Location specific benefits like car lease policy, cycle to work, gym membership, etc. You’ll Fit Right In If You Love asking “why?” Value solving problems over just completing tasks Understand sync vs. async communication practices Thrive in ambiguity and change Actively seek feedback Prioritise impact over activity Are fun to work with - we love good humour! Culture Our Core Values: These values reflect our focus, energy, and shared expectations. Champion the Mission: We are driven by curiosity and belief to solve global cross-border payment challenges. Be the Best: We are open, take calculated risks, focus on results, and excel in our work. Work as One: We transparently share failures and successes. Go the Extra Mile: We deliver beyond expectations and achieve the impossible. Customer First: We creatively solve problems and boldly design better experiences for customers. Run with It: We are determined, embrace challenges, own tasks, act swiftly, and deliver results. Industry Competitive Compensation & Benefits: We reward employees for their value to the business with competitive compensation