Software Engineer
15+ years in web development, backend/API, database, server operation and automation
Software Engineer focused on practical web systems, backend APIs, database work, Linux server operation and automation. Strong experience with high-traffic education websites, score lookup APIs, CMS modules, technical SEO tasks and Python scripts for repeated workflows.
Career Objective
I am seriously pursuing a career path in QA/QC because I believe this role fits my strengths and working style. My Developer background helps me understand systems and analyze defects more effectively, while QA/QC gives me a broader view of the product, business requirements, and software quality. I want to grow toward understanding the full product lifecycle instead of focusing only on one part of development.
Professional Skills
  • Languages: PHP, Python, Java, Nodejs, React Native, HTML, CSS.
  • Backend/API: REST API, JSON processing, third-party API integration, backend modules.
  • Databases: MySQL, Oracle, SQL Server, query writing, data checking, debugging, optimization.
  • Server: Linux server, deployment environment, cache, logs, production issue handling.
  • Automation: Python scripts, web crawl, API calls, Selenium, Playwright, Pytest.
  • Testing support: Postman, Jmeter, API checking, regression check, UI/API/database bug tracing.
Work Experience
2023 - Present
Freelancer Developer
Automation Developer / AI Tool Builder
Remote / Project-based
Skills:
  • Python, Selenium, Playwright, Postman, Pytest, API testing, AI tools.
Products / Projects:
  • Developed automation scripts for API validation and regression testing, data checking, website testing, crawl tasks and browser workflows.
  • Tools for SEO operation, website maintenance, marketing workflow and repeated manual tasks.
2020 - 2023
Ontarget Co., Ltd.
Full Stack Developer
Ho Chi Minh City
Skills:
  • Full stack web development, database, deployment, server logs, bug fixing, regression check.
Products / Projects:
  • Company and client websites: feature development, maintenance, issue investigation and release support.
2017 - 2020
Freelancer
Web Developer / Technical SEO Consultant
Project-based
Skills:
  • Website development, technical SEO, crawl scripts, data filtering, website checking.
Products / Projects:
  • Business websites, SEO technical fixes, speed optimization, sitemap, canonical, redirect and metadata work.
2011 - 2017
Kenh Cong Co., Ltd.
Web Developer / System Engineer
Main project: Kenhtuyensinh.vn
Skills:
  • PHP, MySQL, SQL Server, REST API, Linux server, cache, performance optimization.
Products / Projects:
  • Kenhtuyensinh.vn CMS modules, admission information features and high-traffic exam-score lookup API.
  • Server, database, cache and log monitoring for peak admission traffic.
Key project: Kenhtuyensinh.vn and exam-score lookup API, combining backend development, database, server operation and performance optimization.
Education
09/2006 - 07/2010
Van Lang Private University, Ho Chi Minh City
Major: Software Information Technology
Bachelor's Degree