I’m a software Engineer specializing in backend development and infrastructure, with experience in fast-paced startup environments. I’ve been involved in all stages of product development—from brainstorming and architecture design to troubleshooting production issues and integrating third-party systems.
Experience
2023 — Now
2023 — Now
San Diego, California, United States
I build and maintain core financial systems that power payouts, reconciliation, and multi-network commission ingestion. My work focuses on improving financial data accuracy, reducing operational overhead, and enabling new business workflows through reliable backend infrastructure.
Key contributions:
• Built the company’s bonus payment infrastructure from scratch, introducing automated multi-split logic, Zendesk-driven workflows, and production-ready validation flows that significantly streamlined Ops handling of goodwill and manual adjustments.
• Owned sales importers for 10+ affiliate networks, fixing long-standing ingestion issues, adding historical backfill tools, and ensuring complete and accurate commission data across partner ecosystems.
• Designed and shipped prepayment reconciliation system, handling complex settlement rules, boosted-offer logic, multi-device scenarios, and force-recon cases—unlocking support for a large financial partner’s custom program.
• Refactored and stabilized fragile legacy modules, turning previously “untouchable” areas of the codebase into maintainable and reliable components.
• Improved financial reporting accuracy by building clawback processors, FX reconciliation workflows, and automated cleanup utilities that resolved negative, missing, or misclassified commissions, reducing recurring manual work for Finance and Ops.
2020 — 2023
2020 — 2023
Ho Chi Minh City, Vietnam
• Designed and developed data-driven microservices using Go and RabbitMQ, facilitating the migration of the Python monolith to microservices and accelerating feature development.
• Led the development of two core services (order booking and pricing), powering 5 distinct products, enabling the company to expand operation to over 20 provinces in Vietnam.
• Standardized the partner APIs and documents, reducing the learning curve and setup time from weeks to a day, successfully onboarding Ahamove into top e-commerce sites in Vietnam.
• Monitored and ensured system stability, achieving an annual uptime of 99.99% by utilizing Grafana, Docker, and Kubernetes, and efficiently handling up to 10k requests per second during peak times.
• Constructed a troubleshooting guideline to categorize issues and developed an internal bot for product support engineers, achieving a 20% reduction in ticket resolution time for the customer service team.
• Mentored junior team members by providing regular feedback and guidance, fostering an environment of continuous learning and improvement.
2018 — 2020
2018 — 2020
Vietnam
• Led the back-end development of the “4 Hours Delivery” service from prototype to production, contributing over 50% daily revenue and earning recognition as the best project in 2019.
• Implemented RESTful APIs using Python and MongoDB, serving both users and drivers, enabling the business team to test and iterate various operation models during the company’s initial phase.
• Proactively monitored MongoDB queries to detect and resolve performance issues, ensuring query response time under 150 ms.
• Collaborated with cross-functional teams across the company to analyze and implement scalable technical solutions for new products, effectively addressing both existing and future needs.
2017 — 2018
2017 — 2018
Ho Chi Minh
• Refactored an internal ERP module using HTML, jQuery, ASP.NET, resulting in a modern UI, improved user experience, and streamlined reporting for business managers.
• Collaborated on a RESTful API with the mobile team, resulting in a successful app rollout and seamless integration across web and mobile versions.
• Optimized SQL Server queries for timely report exporting, resulting in improved data accuracy and Board of Directors satisfaction.
2017 — 2017
2017 — 2017
Ho Chi Minh
• Developed a web application to process the large excel files and have a reporting dashboard using HTML, CSS, ASP.NET framework.
• Participated in daily stand up meetings to discuss project progress, challenges.
• Attended internal training for Intel employees resulting in developing a strong can-do attitude and fearless innovation.
Education
International University - VNU HCMC