Software Developer in Test (SDET)

Software Developer in Test (SDET) Join R3 as a Software Developer in Test: lead automated testing across APIs, UI, and microservices; mentor peers; shape quality in a cloud-native DeFi fintech. At R3, we are building the on-ramp for the next trillion dollars of assets to move on-chain, bridging the worlds of traditional finance (TradFi) and decentralized finance (DeFi). We are launching institutional-grade RWA yield vaults, fully composable and integrated into Solana DeFi. We are seeking a Senior QA SDET to take a technical leadership role in shaping the quality of R3’s product suite. As part of an agile, cross-functional engineering team, you’ll design and implement robust automated testing solutions across APIs, UI, and backend components. You'll contribute to our automation frameworks, mentor junior team members, and advocate for testability and quality throughout the development lifecycle. The ideal candidate will bring solid experience in test engineering, a deep understanding of automation best practices, and a proactive mindset when collaborating across teams. Experience working with distributed systems in a cloud-native environment is key whilst financial services experience is a plus. Responsibilities: Lead the design, development, and maintenance of automated test cases and frameworks for functional and non-functional testing Champion quality practices within the team by advising on testability during design and implementation phases Drive testing strategies across services, microservices, and UIs for large-scale distributed systems Collaborate with developers, product managers, and DevOps engineers in Agile ceremonies to ensure test coverage aligns with business needs Contribute to the test planning and own the execution for assigned features or product areas, ensuring timely and high-quality releases Log, prioritize, and manage defects using tracking tools like JIRA Analyse test results, generate quality metrics, and clearly communicate risks and issues Mentor junior QA engineers and help drive automation best practices across teams Required Skills & Experience: Strong coding skills in Java, Kotlin, or similar languages, with demonstrated experience building maintainable test automation code 4-6 years of hands-on experience in test automation and manual QA roles, ideally in Agile environments Proficient in using test automation frameworks and tools such as: UI Testing: Selenium, Cypress, Appium API Testing: REST Assured, Postman, SoapUI BDD Tools: Cucumber, Serenity Database Testing Solid experience with CI/CD pipelines and tools (e.g., Jenkins, GitHub Actions) Familiarity with cloud-native architectures and container technologies like Docker and Kubernetes Experience testing in distributed systems and microservice architectures Strong analytical and problem-solving abilities Excellent communication and collaboration skills Nice to Haves: Exposure to financial services, fintech, or trading system technologies Experience leading test strategy for medium-to-large projects or components Familiarity with tools like XRAY, TestRail, Grafana, Kibana, or Prometheus for test management and observability Understanding of performance, reliability, or security testing approaches ISTQB/CSTE certification What You'll Gain: Opportunities to contribute and shape the test strategy for key product components The chance to help shape test frameworks and tooling direction Opportunities to mentor junior team members and contribute to QA best practices A fast-paced, collaborative team environment with modern DevOps and agile workflows Department Engineering Role Software Developer In Test (SDET) Locations R3 Mumbai Remote status Hybrid About R3 Building digital financial markets of tomorrow R3 leads the world in tokenizing real-world assets and delivering interoperability that bridges $10bn+ in regulated assets with the scale of public blockchains - unlocking compliant, real-world DeFi. Our solutions are foundational to the evolution of global markets, driving network effects that create lasting value. Founded in 2014 Co-workers 80+