Senior Playwright Automation Engineer

Job description

Role: Senior Playwright Automation Engineer

Job Type: Permanent

Location: United Kingdom

Working Hours: 40 hours per week (Full-time)

Careers at TCS: It means more

TCS is a purpose-led transformation company, built on belief. We do not just help businesses to transform through technology. We support them in making a meaningful difference to the people and communities they serve - our clients include some of the biggest brands in the UK and worldwide. For you, it means more to make an impact that matters, through challenging projects which demand ambitious innovation and thought leadership.

The Role

We are seeking a highly skilled Senior Playwright Automation Engineer to lead the quality engineering strategy for next-generation AI, Generative AI, LLM, RAG, Copilot, Multi-Agent, and Agentic AI Platforms. This role goes beyond traditional test automation and focuses on validating the reliability, accuracy, safety, performance, explainability, and guardrails of AI-powered systems.

The ideal candidate combines deep expertise in Playwright automation, API testing, CI/CD, and Quality Engineering with practical experience validating LLMs, prompt workflows, AI agents, MCP integrations, RAG pipelines, and autonomous decision-making systems.

Your responsibilities:

• Design and develop Playwright-based test automation frameworks.
• Automate UI, API, Integration, E2E, and Regression testing.
• Validate AI/GenAI solutions for accuracy, bias, security, RAG quality, and agent workflows.
• Develop automated prompt testing and AI evaluation suites.
• Integrate automated tests into CI/CD pipelines.
• Perform performance, reliability, and observability testing.
• Collaborate with AI Engineers, Architects, and Product teams to drive quality engineering best practices.

Your Profile

Essential skills/knowledge/experience:

• Playwright, TypeScript/JavaScript, and Python expertise.
• Strong experience in UI, API, E2E, and test automation framework development.
• REST API testing, Postman, and API automation experience.
• DevOps tools including GitHub Actions, Jenkins, Docker, and Git.
• AI/GenAI testing experience covering LLMs, Copilots, RAG, and Agentic AI.
• Knowledge of prompt engineering, prompt validation, and retrieval testing.
• Understanding of vector databases, multi-agent workflows, and AI safety testing.

Desirable skills/knowledge/experience:

• Experience with Azure OpenAI, GPT, Claude, Gemini, or Llama.
• Knowledge of LangChain, LangGraph, Semantic Kernel, CrewAI, or AutoGen.
• Experience in BFSI or regulated enterprise environments.