Chaitanya Raj Singh

Developed and executed scalable automated test solutions for enterprise banking applications covering web UI, backend workflows, and API validation.
Built and maintained 1000+ automated UI and API test scripts using Java, Selenium WebDriver, Cucumber BDD, TestNG, and Page Object Model (POM), significantly improving automation scalability and maintainability.
Increased automation coverage from 30% to 80%+, reducing manual regression effort by nearly 50% and accelerating release validation cycles.
Performed REST API testing and backend validation using Postman and REST Assured for microservices-based enterprise systems; validated request/response contracts and API assertions across distributed backend services.
Integrated automated test suites into CI/CD pipelines using Jenkins and GitHub Actions, enabling continuous regression execution on every code commit and reducing manual trigger overhead.
Conducted baseline performance and load testing using JMeter to validate API response times and identify performance bottlenecks in critical banking workflows.
Executed tests in Dockerised environments to ensure consistent, environment-independent test execution across development and staging pipelines.
Validated backend data integrity using SQL and MySQL queries across integrated banking systems and transaction workflows.
Conducted integration testing, SIT testing, defect triaging, root cause analysis, and defect lifecycle management within Agile sprint cycles.
Collaborated with developers, business analysts, and QA stakeholders to validate user stories, enhancement requests, and production-critical functionalities.
Leveraged AI-powered tools including GitHub Copilot, Gemini LLM, Claude, Friday AI, and Citi Astra to accelerate test case generation, Gherkin authoring, QA documentation, and automation productivity.
Gained hands-on exposure to backend service architecture, CI/CD workflows, distributed systems, and automation optimisation strategies.