Senior Web3 SDET

Salary: £68,000 - 89,000 per year

Requirements:

• 1+ year working with blockchain or Web3 products, ideally on Solana
• 6-10 years of hands-on experience in manual QA techniques and test automation roles, ideally in Agile environments
• Experience testing smart contracts, transactions, and wallet integrations
• Proficiency with test automation frameworks and tools such as Selenium, Cypress/JavaScript/TypeScript, Appium, REST Assured, Postman, SoapUI, Cucumber, Serenity, and database testing
• Solid experience with CI/CD pipelines and tools such as Jenkins and GitHub Actions
• Familiarity with cloud-native architectures and container technologies such as Docker and Kubernetes
• Experience testing distributed systems and microservice architectures
• Strong analytical and problem-solving abilities
• Excellent communication and collaboration skills
• Exposure to financial services, fintech, or trading system technologies is a plus
• Strong coding skills in Java, Kotlin, or similar languages, with experience building maintainable test automation code is a plus
• Familiarity with XRAY, TestRail, Grafana, Kibana, Prometheus, and Helm charts for test management and observability is a plus
• Understanding of performance, reliability, or security testing approaches is a plus
• ISTQB/CSTE certification is a plus

Responsibilities:

• Own the automation of Web3 wallet workflows, including wallet integrations, transaction validation, and end-to-end blockchain interactions
• Develop and execute comprehensive test plans and test cases for smart contracts, transactions, and wallet integration workflows
• Collaborate with developers, product managers, and DevOps engineers in Agile ceremonies to ensure test coverage aligns with business needs
• Log, prioritize, and manage defects using tracking tools like JIRA
• Analyse test results, generate quality metrics, and clearly communicate risks and issues

Technologies:

• Appium
• Blockchain
• CI/CD
• Cloud
• Cucumber
• Cypress
• DevOps
• Docker
• GitHub
• Grafana
• Helm
• ISTQB
• JIRA
• Java
• JavaScript
• Jenkins
• Kibana
• Kotlin
• Kubernetes
• Postman
• Prometheus
• REST
• Security
• Selenium
• TypeScript
• Web3
• UX UI Design
• Web

More:

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 and decentralized finance. We are launching institutional-grade RWA yield vaults, fully composable and integrated into Solana DeFi. We offer opportunities to contribute to and shape the test strategy for key product components, help shape test frameworks and tooling direction, and work in a fast-paced, collaborative team environment with modern DevOps and agile workflows.

last updated 36 week of 2026