Backend Engineer, WOM Finance

Dec 2025 - Present

  • Architected and developed comprehensive reporting tools utilizing Node.js and .NET Framework, empowering cross-functional teams with reliable data visibility and enhancing overall operational decision-making.

  • Engineered reusable internal libraries (“magic packages”) and utility tools that streamlined development workflows, significantly boosting team productivity and elevating the developer experience.

  • Designed and optimized relational database schemas using MySQL to support complex reporting queries, ensuring rapid data retrieval and high system performance.

  • Deployed and maintained robust backend services in Linux environments leveraging Docker containerization, ensuring high availability, scalability, and consistent system reliability.

  • Leveraged knowledge: Node.js, .NET Framework, MySQL, Linux, Deployment Environment (Docker), Internal Tooling.

Backend Engineer, LION PARCEL

Apr 2025 - Oct 2025

  • Developed high-performance RESTful web services to facilitate smooth communication between different components of the application, handling over 1,000 requests per second.
  • Improved performance and reliability of databases, web services, and other integrations, enhancing system efficiency.
  • Enhanced code quality by implementing unit tests and conducting thorough code reviews, reducing bug occurrence rates by 30%.
  • Reduced application load times by 40% for an improved user experience through optimized database queries and caching strategies.
  • Successfully migrate product data into opensearch, Increases product recommendation search flexibility, reduces latency by up to 80%

Backend Engineer, PRIVY

Jan 2023 Nov 2024

  • Architected and developed One Auth, a highly scalable core authentication service, enabling seamless and secure user access across the platform, handling millions of authentication requests with 99.99% uptime and sub-100ms response times.
  • Engineered a robust proxy service to bridge core applications with merchant systems, streamlining client request fulfillment, reducing resource overhead by 40%, and cutting integration timelines from weeks to days for product teams.
  • Collaborated with merchant integration and core teams to design, develop, and maintain critical services, with a focus on optimizing registration flows, ensuring seamless onboarding for thousands of daily users while adhering to strict security standards.
  • Built and maintained high-performance RESTful APIs and gRPC services to enable efficient communication between microservices, achieving low-latency interactions and supporting a 50% increase in transaction throughput.
  • Proactively monitored and debugged production issues using observability tools (e.g., Prometheus, Grafana), resolving critical incidents within SLAs and reducing downtime by 30% through automated alerting and root cause analysis.
  • Deployed applications using Docker and Kubernetes, ensuring consistent environments across development, testing, and production, while leveraging CI/CD pipelines (e.g., GitHub Actions, Jenkins) for zero-downtime releases and rapid iteration cycles.
  • Leveraged knowledge: Go, Distributed System, gRPC, Microservices, Cloud Storage (Especially GCP, AWS), Database Transactional & Caching mechanism, Deployment Environment (Docker, CI/CD)

Backend Engineer, KOINWORKS

Apr 2022 - Nov 2022

  • Architected and implemented a scalable core banking system enabling users to seamlessly generate personalized virtual cards, integrated with leading payment gateways like Mastercard and Xendit, processing thousands of transactions daily while ensuring PCI-DSS compliance and sub-second latency.
  • Engineered an intuitive internal back-office platform for enterprise admins, featuring advanced transaction analytics dashboards and real-time refund tracing tools, empowering teams to monitor costs from system failures, reduce operational overhead by 30%, and accelerate issue resolution from days to hours.
  • Led rigorous code reviews and authored comprehensive unit tests with 90%+ coverage using Go’s testing suite, fostering a culture of high-quality, maintainable code that accelerated deployment cycles and minimized production bugs.
  • Collaborated in cross-functional Backend Engineer weekly syncs, driving technical decisions on system architecture, performance optimizations, and feature prioritization to align with business goals in a fast-paced fintech landscape.
  • Leveraged knowledge: Distributed System, Message Queue pattern, Go, Cloud Storage, Financial Tech, Database Transactional & Caching Database, Deployment Environment (Docker, CI/CD)

Backend Engineer, GITS

Feb 2022 - Aug 2022

  • Led the development of the GPP System service, a comprehensive solution designed to enhance the accuracy and efficiency of company profitability calculations.
  • This involved seamless integration with three essential resources Airtable: For centralized data management and tracking, Journal: To capture and process financial entries, Clockify: For accurate time tracking and resource allocation.
  • This integration significantly optimized the financial reporting and analysis processes, providing a clearer insight into project profitability.
  • Actively collaborated with cross-functional teams and stakeholders to meticulously define system requirements and design intuitive system flows.
  • This ensured that developed solutions precisely met business needs and provided an optimal user experience.
  • Championed software quality through rigorous unit testing to ensure code reliability, maintainability, and adherence to established standards.
  • Simultaneously, I produced comprehensive documentation, including technical specifications and user guides, to facilitate understanding, future development, and knowledge transfer.
  • Leverage knowledge: NodeJS, Git, PostgreSQL, Deployment Environment (Docker, CI/CD), GCP