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DT Hieu

@dthieu

Senior automation test engineer and QA lead, scaling frameworks and cutting regression cycles for fintech and web platforms.

Vietnam

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What I'm looking for

I’m looking for a role where I can lead test automation end-to-end—building frameworks, integrating CI/CD, and validating data pipelines—while owning quality strategy and mentoring teams across international stakeholders.

I’m a Senior Automation Test Engineer & QA Lead with 7+ years building automation frameworks from scratch across fintech data pipeline validation on Microsoft Fabric, legacy .NET 4 enterprise web apps, and modern web platforms for UK & APAC clients.

I’ve consistently tracked results—cutting regression cycles by up to 85%, scaling suites from zero to 3,000+ cases with a 98% pass rate, and acting as the primary automation point-of-contact for international stakeholders. I also lead a 5-person QA team with full people-management responsibility (hiring, performance reviews, mentoring) across three concurrent UK-client engagements.

My work focuses on end-to-end test strategy and stability: driving Playwright/TypeScript and Selenium/Java automation, integrating CI/CD via Azure Pipelines, and using precise SQL + Pandas validation to close the loop from ingestion to user-facing reporting. I’m also investing in reusable engineering through an open-source Playwright E2E framework and ongoing data validation initiatives.

Experience

Work history, roles, and key accomplishments

Current

Senior Automation QA Lead

Current

NashTech

Jun 2022 - Present (4 years)

Led a 5-person QA team across three UK engagements, owning hiring, performance reviews, and mentoring. Drove end-to-end automation across modern web, legacy .NET 4 apps, and Microsoft Fabric data pipelines, cutting regression cycle time by up to 85% and stabilising Azure Pipelines runs ahead of client demos.

Playwright TypeScript Azure DevOps Azure Pipelines Microsoft Fabric Python Pytest SQL Team Leadership

QA Lead

Fpt Software

Jun 2021 - Jun 2022 (1 year)

Led a QA team of 4 through full sprint cycles for StarHub, owning test strategy and progress reporting to client stakeholders. Built Selenium WebDriver + Java + TestNG automated regression suites for a Siebel CRM-backed customer portal and onboarded junior QAs to deliver production-ready automation within their first quarter.

Selenium Webdriver Java TestNG Test Strategy

Senior Tester

Scuti

Apr 2020 - Jun 2021 (1 year 2 months)

Designed and executed test suites across multiple concurrent product lines, prioritising critical user-facing flows for manual and automated coverage. Built Selenium WebDriver + Java regression automation, performed API testing with Postman and database validation with SQL, and trained QA team members on automation, API testing, and SQL fundamentals.

Selenium Webdriver Java API Testing Postman SQL Regression Testing Manual Testing

QA Tester

ITNavi

Mar 2019 - Apr 2020 (1 year 1 month)

Performed manual and exploratory testing for web and mobile applications, creating test cases and tracking defects. Coordinated with development and product teams to ensure timely bug resolution and accurate release feedback.

Exploratory testing Manual Testing Bug Reporting Cross Functional Communication Web Testing Mobile Testing

QA Tester

Gameloft

Jan 2018 - Mar 2019 (1 year 2 months)

Handled mobile game QA through test case design, bug reporting, and pre-release product demos for marketing and executive stakeholders. Supported fast-paced release cycles by ensuring quality readiness before product launches.

Mobile QA Testing Design Bug Reporting Exploratory testing Quality Assurance