Nguyen Thi Hien Nhi

Senior QA Engineer | API | Payment Systems | UAT & Automation

Hanoi Capital Region

About

- Senior Quality Assurance Engineer (5+ years of experience) in the FinTech field, with experience in payment systems, and strong expertise in API testing, SQL data validation, and system integration. - API & Web automation (Postman, Selenium, TestNG), primarily responsible for user acceptance testing (UAT), product release, and risk-based testing. - Responsible for coordinating UAT, system demo, user documentation, and production rollout with the operations team.

Experience

  • Senior Software Quality Assurance Engineer at Iris Group
    May 2020 - Present · 6 yrs 3 mos

    1. Payment Systems – Mobifone Money, Business Wallet Led end-to-end testing across CMS Admin, CMS User, Mobile App (eKYC → OTP → Payment flows) Validated API & ensured data consistency across payment system, banking gateway, database Improved test coverage 65% → 88% & reduced ~75% production defects Supported UAT, system demo, documentation & production rollout 2. Gamification Platform (100K+ users) Tested game logic, reward system, campaign & reporting modules Designed 320+ test cases; detected 110+ defects (~96% fix rate) Validated real-time reporting & ensured reward accuracy Supported UAT & production release 3. OTT SMS (2M+ messages) Owned API testing for high-volume messaging system Performed API validation (Postman, SQL) & regression testing Monitored production & handled RCA to maintain stability 4. Automation & Process Improvement Built API & Web automation (Postman/Newman, Selenium + TestNG) Applied data-driven & POM → improved maintainability Enhanced regression workflow & reporting → increased efficiency

  • Software Quality Assurance Tester at Nexttech Group of Technopreneurs
    Mar 2019 - May 2020 · 1 yr 3 mos

    Tested ride-hailing system (FastGo, FastDriver) for 500K+ users Designed 280+ test cases; detected 85 defects (92% fix rate) Ensured system stability for the production environment under high transaction volume

  • Software Quality Assurance Tester at Development Technology and Investment Joint Stock Company
    Jan 2017 - Feb 2019 · 2 yrs 2 mos

    Tested and analyzed 8 game products Designed 240+ test cases; improved system accuracy to 99.8% Provided product analysis and requirement clarification to stakeholders