Rajender Singh

About Rajender Singh

Senior QA Engineer with 10+ years of experience driving quality across enterprise web, mobile, and cloud applications. Strong expertise in Functional Testing, REST API validation, and Automation using Python, Selenium, and Pytest.Proven track record of leading QA initiatives, mentoring team members, and collaborating with cross-functional stakeholders to deliver stable, production-ready releases. Experienced in building structured test strategies, improving regression efficiency, and reducing defect leakage in Agile environments.Hands-on exposure to AI feature testing, prompt validation, and chatbot workflow verification. Recently expanding into Robotics fundamentals using ROS2 and Gazebo simulation to stay aligned with emerging technologies.

Experience

1. Senior Quality Assurance Engineer

   bebo Technologies

   Jun 2015 — Present

   Led and executed end-to-end functional testing for core features including folder management, permissions, sharing, collaboration, previews, and uploads/downloads across web, mobile, and desktop platforms. Designed and executed detailed test cases and complex scenarios covering deep folder hierarchies, edge cases, and high-risk user workflows. Performed smoke, regression, integration, and release validation testing for frequent production deployments. Conducted API testing to validate backend workflows, system integrations, and data consistency. Logged, tracked, triaged, and verified defects using Jira, TestRail, and Azure DevOps, ensuring timely resolution and release stability. Collaborated closely with developers, business analysts, and product owners during requirement analysis and sprint execution to clarify acceptance criteria and identify gaps early. Participated in Agile ceremonies including sprint planning, daily stand-ups, backlog grooming, sprint reviews, retrospectives, and release readiness activities. Created and maintained automation scripts using Python and Selenium following Page Object Model (POM) to support regression cycles and release validation. Executed automation test suites via Jenkins CI pipelines and analyzed failures during build validation. Used prompt-based testing to verify AI output accuracy, relevance, error handling, and fallback behavior. Supported team coordination, test reviews, knowledge sharing, and release readiness activities as a senior QA member. Integrated and used client MCP Server with Cursor AI to support AI-assisted testing and exploratory validation workflows.

Education

• Panjab University, Chandigarh

  Bachelor of Computer Applications

  2009 — 2012

• Chitkara University

  Master's Degree

• GGDSD College Placement Cell

  Bachelor's Degree

• Chitkara University

  Master of Computer Applications - MCA, Information Technology

  2012 — 2015