Chanchai Tasujai

QA Lead

Sep 2026 - Present

• Own quality of the HumanOS HR system (web and mobile), including customizations for enterprise clients
• Set the team's QA standards, from internal test cases and client-facing UAT test scripts to severity rules
• Ran load testing with K6 and reported results in Grafana
• Produced user manuals (Word) and training slides for clients

Key Achievements

• Built the team's automated test suite: web with Playwright, Android/iOS with MobileWright, and a post-deploy regression that opens every menu and writes results back to the test case sheet
• Built shared AI tooling (Claude Code skills) for the QA team: writing test cases, generating UAT scripts, filing GitLab bug cards, and turning code/specs into test-prep briefs

Senior QA

Apr 2026 - Aug 2026 · 5 mos

• Own software quality across 3 concurrent projects: LION (Sales Portal), ATP30 (driver data and billing), and Tokio Marine (insurance policy issuance for the Shopee platform, plus an App Modernization project migrating the Premium Queue Process to Azure)
• Owned test strategy and regression quality gates for critical modules.
• Applied AI to analyze and resolve user issues on the ATP30 project.
• Delivered customer training sessions on the LION project.
• Ran performance/load testing of the Partner API with K6, including test result reporting
• Designed penetration test cases and executed E2E testing of the policy issuance system
• Tested legacy-to-cloud data migration, validating document output (StreamServe) against the legacy system

Key Achievements

• Lowered production defect leakage with risk-based testing and stronger test traceability.

Project Manager

Nov 2025 - Mar 2026 · 5 mos

• Oversaw the company's entire project portfolio across clients: ATP30, Tokio Marine, LION, and CHICCARRENT.
• Led ATP30 project delivery from scope planning through UAT milestones.
• Aligned business, client, and engineering teams to reduce requirement gaps.

Key Achievements

• Delivered UAT milestone on schedule under constrained team capacity.

Soft Skills & Leadership

• Drove Agile ceremonies (Sprint Planning, Daily Stand-up, Retrospective) for execution consistency.

Software Tester (QA)

May 2025 - Oct 2025 · 6 mos

• Designed and wrote test cases, and tested the system before each customer delivery on the LION project.
• Ran UAT with the client and demoed the system for sprint-based deliveries.
• Handled quality assurance across manual and automated testing flows, including API contract testing with Postman.
• Tested an enterprise Transport Management System (TMS) with clients such as LION.

Software Tester

May 2021 - Mar 2025 · 3 yrs 11 mos

• Designed test cases and executed manual/functional testing across web and mobile platforms.
• Deployed the web app and mobile apps (iOS and Android) to production.
• Analyzed requirements, designed system architecture, and supported server and database reliability.
• Managed bug lifecycle and root cause analysis.
• Coordinated with an outsourced development team.
• Designed UI screens in Figma for both mobile and web, based on features and user requirements.

Key Achievements

• Expanded test coverage in critical modules and reduced repeated post-release defects.
• Improved bug reporting workflow, reducing turnaround and re-test cycles.

Computer Teacher

May 2020 - Mar 2021 · 1 academic year

• Taught vocational students in the computer curriculum.
• Prepared lesson plans and teaching materials aligned with current technology.
• Managed the college's Facebook Page — created content and published announcements.