Avinash Singh

Senior SDET (Software Development Engineer in Test) with 8+ years in UI, API and AI test automation for high-traffic web and API platforms in real estate, healthcare, AI chatbots, fintech/trading, e-commerce and Web3. Managed a 4-engineer QA pod at Housing.com end to end: ran its sprints, allocated and tracked work, set automation and code review standards, and mentored engineers.

Specializes in AI verification and validation: evaluating LLM and RAG outputs with Ragas, testing AI agents and prompts, and building tests with agentic AI workflows (Claude Code, GitHub Copilot agent mode, Cursor, Playwright MCP). Expert in Playwright, TypeScript, REST/GraphQL API and microservices testing in CI/CD.

Senior Software Test Engineer (SDET) at Housing.com (2021-06 – 2026-10)

• Managed a 4-engineer QA pod: ran its sprints from planning to retrospective, allocated and tracked testing work, and owned delivery of the pod's testing commitments.
• Mentored engineers on automation design and test quality; set code review guidelines and drove shift-left practices with product and development teams, reducing production defect leakage by 25%.
• Evaluated LLM and RAG (retrieval-augmented generation) outputs with Ragas, and verified AI features through AI agent testing and prompt validation.
• Used AI coding agents (Claude Code, GitHub Copilot agent mode, Cursor) with Playwright MCP, including agent-to-agent orchestration, to generate, run and self-heal Playwright tests from requirements.
• Championed GenAI-assisted QA workflows (Claude, GitHub Copilot, ChatGPT) for synthetic test data generation and AI-aided script debugging, cutting test script development time by 60%.
• Built AI-driven proofs of concept for intelligent test case selection, defect prediction and LLM prompt validation, reducing manual test preparation effort by 30%.
• Led the end-to-end migration of the web and API test automation framework from WebdriverIO to Playwright (TypeScript/JavaScript), refactoring 150+ E2E test scripts to reduce flakiness and cut execution time by 30%.
• Designed a centralized, config-driven framework architecture for domain, URL and API endpoint mapping across environments, cutting environment maintenance effort by 20%.
• Scaled regression, smoke and sanity suites to 950+ test cases running in parallel in GitHub Actions and Docker-based CI/CD pipelines, raising critical-path coverage by 40% and giving fast feedback on every build.
• Optimized 400+ existing tests with dynamic wait strategies and parallel execution, achieving 30–40% faster test runs.
• Built REST and GraphQL API automation suites with Playwright API testing and Postman, validating response schemas, authentication, error handling and data integrity.
• Tested microservices integrations using contract testing and schema validation to catch breaking API changes before deployment.
• Ran load and stress tests with JMeter on critical user journeys and APIs, identifying performance bottlenecks before production releases.
• Debugged failures with Datadog and Kibana logs, performing root cause analysis (RCA) on production issues and driving fixes.

Software Engineer (QA) at VVDN Technologies (2021-01 – 2021-06)

• Performed functional, integration and regression testing of patient-critical Stryker healthcare applications, ensuring compliance with data integrity and system safety requirements.
• Wrote test plans, test scenarios and test cases for complex healthcare workflows in an Agile/Scrum team.
• Logged, tracked and verified defects to closure in Jira, working closely with developers on fixes.

Software Engineer (QA) at AcquirLab Solution Pvt Ltd (2019-12 – 2020-10)

• Ran functional and automated testing across AI chatbot systems, customer service portals, sales modules and analytics reporting engines.
• Reduced defect leakage through edge-case, boundary-value and negative testing, and validated analytics reports and data accuracy using SQL queries.
• Received the "Rising Star" award for contributions to product reliability and quality.

Software Engineer (QA) at W3villa Technologies Pvt Ltd (2018-03 – 2019-11)

• Built a BDD automation framework from scratch with Cucumber and Capybara (Ruby), automating functional E2E tests for trading and e-commerce platforms.
• Tested Ethereum smart contracts and Web3 search-engine interactions, checking contract security, transaction data integrity and DApp behavior.
• Worked on-site in Singapore, collaborating directly with global stakeholders to align requirements and deliverables.
• Earned multiple "A+ Performance Awards" for consistently delivering releases with zero critical defects.

B.Tech in Computer Science & Engineering – Pranveer Singh Institute of Technology, Kanpur (2012 – 2016)