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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior QA Automation Engineer - **Company:** Contracts IT - **Location:** London, UK - **Experience:** Expert - **Contract:** Temporary contract - **Skills:** Application Programming Interfaces (APIs), Application Testing, Automation of Tests, Data Integrity, Data Mapping, Data Migration, Database Applications, Relational Databases, Distributed Systems, PostgreSQL, Load Testing, E2e Testing, SQL Databases, Software Testing Automation Framework, Data Streaming, Systems Integration, TypeScript, Cypress (Programming Language), Gatling, Kotlin, Playwright, Api Management - **Published:** June 2, 2026 - **Apply:** https://www.careerboard.com/pt/en/find-jobs-in-United-Kingdom/-E88B4C654D78238143/ ## About the Role * Proven experience designing and implementing automated testing frameworks in complex environments. * Strong hands-on experience with Playwright and/or Cypress for end-to-end test automation. * Experience testing applications and services developed using Kotlin and TypeScript. * Strong API testing experience, including testing modern integrations and Legacy system interactions. * Experience testing distributed systems with multiple APIs and complex service dependencies. * Knowledge of integration resilience testing, including failure handling, retries, timeout scenarios, and degraded service conditions. * Experience with contract testing tools such as PACT. * Strong understanding of enterprise-scale application testing and large distributed architectures. * Experience validating cross-system data flows and ensuring data consistency across multiple platforms. * Knowledge of relational databases and experience testing data-driven applications using PostgreSQL and SQL. * Strong analytical skills with the ability to identify edge cases, operational risks, and failure scenarios. Desirable * Experience with data migration testing, including data mapping, transformation, and validation. * Experience with performance and load testing tools such as Gatling. * Experience working within highly regulated or large-scale public sector environments. ## Description This is a *London* based role with an excellent immediate start within a Public Sector organisation working on *Designing, developing, and maintaining automated test frameworks for UI, API, integration, and end-to-end testing.* Play a key role in delivering high-quality, resilient digital services at scale. We are seeking an experienced Senior QA Automation Engineer to join a high-performing technology team responsible for delivering complex, enterprise-scale applications and integrations. This role is ideal for someone who is passionate about quality engineering, automation, and ensuring robust end-to-end user experiences across multiple interconnected systems. You'll be responsible for designing and implementing modern test automation frameworks, driving quality across UI, API, integration, and end-to-end testing, and helping teams build confidence in every release. What You'll Be Doing * Design, develop, and maintain automated test frameworks for UI, API, integration, and end-to-end testing. * Create and execute automated smoke, regression, and core user journey test suites covering both happy and unhappy paths. * Validate complex business processes spanning multiple systems and APIs. * Test cross-system workflows and state changes where data is propagated between platforms. * Ensure the quality and resilience of integrations, including testing failure scenarios, timeouts, and degraded dependencies. * Support feature-flagged releases and validate behaviour across multiple configuration states. * Verify data integrity across imports, exports, synchronisation processes, and system integrations. * Collaborate closely with developers, product teams, and operational stakeholders to embed quality throughout the software delivery lifecycle. * Support and coordinate User Acceptance Testing (UAT) activities with business and operational teams. * Contribute to performance and load testing initiatives to ensure systems perform effectively at scale. ## Related Videos - [Continuous testing - run automated tests for every change!](https://www.wearedevelopers.com/videos/190-continuous-testing-run-automated-tests-for-every-change) - [Boost Productivity with AI: Figma & Playwright MCP Workflows - Aris Markogiannakis](https://www.wearedevelopers.com/videos/1768-boost-productivity-with-ai-figma-playwright-mcp-workflows-aris-markogiannakis) - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Are Classical Automation Frameworks Dead? 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