Apr 2021 – Feb 2024 · 2 yrs 10 mos · Bangkok Metropolitan Area · On-site

• Led integration of HCE/NFC contactless payment in a credit card application by aligning 3 internal systems with a partner system.
• Created Grafana dashboards for login and HCE/NFC flows, which cut down incident diagnosis time by 80%.
• Resolved the root cause of 6 slow integration tests, which streamlined the test run time in the CI by 46%.
• Developed the first version of eKYC flow, which contributed to the successful Series A fundraising.
• Designed end-to-end encryption within a cloud secure proxy, which enabled PCI-compliant data handling.
• Deployed 3 automated PagerDuty alerts that prevented loss of thousands of users from third-party outages.
• Drove adoption of dependency inversion principle across Gradle modules to enable parallel builds in the CI.
• Proposed a Danger rule to restrict changes to the growing core module; suggested breaking it down into utility modules (e.g., crypto, design, persistent, currency, etc.) to maintain modular integrity.
• Implemented app lock using Android Biometric API and SDK-based face recognition to enhance security.
• Modified the CI/CD pipeline to store Marathon test results in Google Cloud Storage to enable insights into flaky tests, long-running tests, and test health trends over time.

Sep 2019 – Dec 2020 · 1 yr 3 mos · Bangkok Metropolitan Area

• Architected login and registration flows for the 7-Eleven TH app, which reached over 5 million daily active users.
• Presented a technical talk on how nullable view bindings cause misleading visibility states, which convinced the entire Android team to adopt a non-nullable alternative.
• Introduced AOSP-aligned best practices across multiple Android projects to replace empty catch blocks with actionable exception handling.
• Explained to a cross-functional team of 8 that second-factor authentication requires backend verification of first-factor to prevent common attack vectors.
• Integrated Firebase ML Kit to detect kiss gestures and trigger user rewards for a Valentine’s Day feature, which went viral in Thailand.

Jan 2017 – Aug 2019 · 2 yrs 7 mos · Thailand

• Transformed the fan engagement app of Broncos(NRL, Australia) into a white-label product, which resulted in a successful sale to another prestigious football club, Jaguars(NFL, US).
• Designed a database schema and 3 Rest APIs to make the T&Cs feature fully compatible with EU GDPR, which opened the door to the EU market.
• Established consensus among 3 engineers and 1 product manager on enforcing backend input validation, as attackers can bypass mobile validations via API-level access.
• Extracted all custom views into a dedicated design library, which resulted in 10% faster CI builds.
• Migrated the fan engagement app project from MVP to MVVM and Java to Kotlin.