About Me
Software Engineer in Test with 15+ years of experience specializing in web and backend application testing. Expert in designing and developing scalable automation testing frameworks with strong hands-on experience in both automated and manual testing. Proven track record in testing large-scale and integration systems. Actively applying AI-powered tools and techniques to enhance test case design, automation coverage, defect detection, and test maintenance, helping teams improve product quality and accelerate delivery. Passionate about Cloud Computing, modern QA practices, and building high-quality systems from the ground up.
Skills
- Automation Testing and Manual Testing with AI-assisted quality workflows for test design, execution, and maintenance
- Promptfoo for automated prompt testing, evaluation, and regression validation.
- Shift-left testing approach
- Programming languages: Java, JavaScript
- Familiarity with Unix-like systems and scripting languages
- Team Management
- Test frameworks and libraries: Playwright, Selenium WebDriver, WebDriverIO, RestAssured, TestNG/JUnit, Cypress, Cucumber (BDD), TDD
- Performance testing tool: K6
- Monitoring and observability: AWS CloudWatch Logs, Splunk Logs
- CI/CD: Jenkins, Harness, Azure DevOps
- Source control: Git, SVN
- AWS Certified Solutions Architect – Associate with focus on cloud-native and AI-ready architectures
- Others: Docker, Kubernetes, Gradle, Maven, npm
Experience
Aperia
Software Quality Assurance Engineer
May 2025 - Present
QA Engineer building reliable, scalable quality with Playwright and AI.
- QA Engineer specializing in web application testing, Playwright automation, and AI-assisted quality workflows.
- Designed and maintained scalable, reliable automation frameworks aligned with rapid product growth.
- Applied AI-assisted testing workflows to improve test coverage, optimize test design, and accelerate defect detection.
- Integrated automation into CI/CD pipelines to enable fast feedback loops and high release confidence.
- Partnered closely with Product and Engineering teams to ship high-quality features faster.
National Australian Bank, Vietnam
Lead, Quality Engineer
Jan 2021 - Feb 2025
NAB Contact Center
- My primary responsibility is to ensure the quality of backend microservices supporting NAB’s call center operations.
- Lead QA for large-scale banking systems; owned end-to-end test strategy, planning, execution, and reporting.
- Designed and scaled automation frameworks for web and API testing; integrated with CI/CD pipelines.
- Improved regression efficiency and release stability through automation and optimized test processes.
- Led shift-left testing, root cause analysis, and defect prevention across cross-functional teams.
- Mentored QA engineers and drove continuous improvement initiatives.
Nash Tech
Automation Test Lead
Mar 2020 - Oct 2020
Pinsent Manson A product to generate and manage legal documents.
- Built automation frameworks for UI and API testing using BDD approach.
- Defined test strategy, test plans, and execution processes for client projects.
- Led automation adoption and trained manual testers to become automation engineers.
Hansen Technologies
Automation Test Lead
Jan 2018 - Feb 2020
A product of Billing Solutions for Energy, Pay TV, Telecom industries.
- Designed and developed automation frameworks from scratch.
- Established QA processes, standards, and best practices.
- Led PoC initiatives to evaluate testing tools and frameworks.
- Drove test automation across web applications.
Terralogic Inc.
Sr Software Test Engineer
Aug 2016 - Nov 2017
This project is to maintain and develop new features for a healthcare system.
- Owned testing for healthcare systems: functional, regression, and system testing.
- Reviewed test cases and mentored junior engineers.
- Ensured on-time delivery through quality-driven execution.
Freelancer
NodeJS Developer
Aug 2015 - Jul 2016
Build a website based on NodeJS technology.
- Built full-stack web applications using NodeJS, Bootstrap, and MongoDB.
- Designed REST APIs and database architecture.
IMT Solutions
Software Test Engineer
Mar 2013 - Jul 2015
Working on Zimbra Mail, an email collaboration for enterprise customers based on LINUX.
- Design and build network infrastructure to set up mail servers.
- Install, deploy, maintain, and troubleshoot mail servers.
- Performed functional, integration, and regression testing.
- Built and maintained test automation suites.
- Supported customer issue analysis and production troubleshooting.
Education
Ho Chi Minh City University of Technology (Bach Khoa)
BE Electrical and Electronics Engineering
2007 - 2012
Certifications
AWS
AWS Certified Solutions Architect - Associate
Issued Aug 2022 - Expires Aug 2025