Headline

Sr. QA Engineer | Manual & Automation Testing | Selenium · TestNG · Postman · SQL | TRAI/DLT Compliance | Agile | 3.6 Years

About

Sr. QA Engineer with 3.6 years of experience in Manual Testing and Automation Testing across Telecom, Health Insurance, Energy Trading, and Blockchain domains. I specialise in end-to-end Functional Testing, Regression Testing, and API Testing of complex, compliance-driven platforms — with strong hands-on expertise in Selenium WebDriver, TestNG, Postman, and SQL-based data validation. 🔹 Telecom & DLT Compliance — Validated TRAI regulatory workflows including DLT registration, template approvals, message scrubbing, and consent management across Entity, Header, Template, and Consent modules. 🔹 Test Automation — Built and executed automated regression suites using Selenium WebDriver and TestNG; reduced regression cycle time and eliminated critical defect escapes to production. 🔹 API Testing — Tested REST API integrations between telecom systems using Postman; validated request/response payloads, authentication, and error handling end-to-end. 🔹 Test Management — Designed test cases from BRD and FRS documents; managed defects in JIRA with severity/priority tracking; maintained test suites and execution cycles in TestRail. 🔹 Database Testing — Performed SQL-based data validation to ensure data integrity, accuracy, and consistency across application modules. 🔹 Agile/Scrum — Active participant in sprint planning, daily standups, and retrospectives; collaborated with developers, BAs, and product owners for timely, high-quality releases. Open to Sr. QA Engineer / QA Automation Engineer roles in product or service companies. 📩 preeti.nigam0301@gmail.com

Location

South Delhi

Work experience

Senior QA Engineer at Teledgers, Jun 2025 - Present · 1 yr, Gurugram, Haryana, India

Senior Quality Assurance Engineer at Teledgers Technology, Nov 2022 - Present · 3 yrs 7 mos, Conducted end-to-end functional testing of DLT registration workflows including Entity, Header, Template, and Consent Management. Performed regression testing across multiple releases ensuring system stability and compliance. Validated TRAI regulatory workflows such as template approvals, message scrubbing, and consent validation. Designed and executed test cases based on BRD and FRS documents. Tested API integrations between telecom systems using Postman. Performed database validation using SQL queries to ensure data integrity. Logged and tracked defects using Jira with proper severity and priority. Collaborated with cross-functional teams to resolve defects efficiently. Conducted smoke and sanity testing for new builds. Executed cross-browser testing for web applications. Supported UAT and ensured smooth production releases.

QA Engineer at Teledgers, Nov 2022 - May 2024 · 1 yr 7 mos, Gurugram, Haryana, India

QA Trainee at Blockcube, Nov 2022 - May 2023 · 7 mos, Gurugram, Haryana, India

Project Engineer at TECHNICOM ENGINEERS NETWORK, Jul 2015 - Dec 2020 · 5 yrs 6 mos, New Delhi, Delhi, India, Managed project execution and coordinated with vendors and clients. Ensured timely project delivery and handled client requirements. Conducted product testing based on client specifications.

Education

B.Tech, Electrical, Electronics and Communications Engineering, UNITED COLLEGE OF ENGINEERING AND RESEARCH, GREATER NOIDA