Nguyen Phuc Duc
Ho Chi Minh City,Vietnam
Summary
Results-driven Backend Engineer with over 5 years in designing and deploying banking and payment systems using Go. Expertise in system architecture, microservices, and cloud infrastructure, with direct oversight of production platforms on AWS and Kubernetes. Delivered a Napas QR payment platform and a digital account-opening service, while integrating legacy systems and leading technical design reviews to enhance scalability and performance.
Overview
1
1
Language
1
1
Certification
6
6
years of professional experience
Work History
Senior Backend Engineer
HDBank
Ho Chi Minh City
07.2022 - Current
- Led AWS cloud adoption, migrating document management and customer onboarding workloads from on-premises infrastructure to AWS, enhancing operational efficiency.
- Designed and evolved microservice architectures for banking products, integrating modern services with legacy core-banking systems.
- Standardised CI/CD pipelines and engineering practices across teams, increasing deployment consistency and automating release processes.
- Implemented Prometheus and Grafana for centralised monitoring and alerting across banking services, improving visibility and response time for system metrics.
- Improved the performance and scalability of high-traffic APIs through Redis caching, load balancing, and load testing.
- Received Excellent Individual Award for exceptional contributions to team success in retail banking in 2024 and 2025.
- Domain: Retail Banking & Payments | Ho Chi Minh City, Vietnam
Mobile App & Backend Rebuild
HDBank Bank
12.2024 - 02.2026
- Implemented GitOps-based CI/CD with automated testing and deployment for the rebuilt mobile backend.
- Designed and implemented a notification system using Kafka for large-message processing.
- Led performance optimisation initiatives, integrating caching, CDN, and load testing to ensure readiness for production traffic.
- Reviewed and enhanced system architecture for improved scalability, reliability, and maintainability.
- Optimised infrastructure for enhanced scalability and cost efficiency across AWS environments.
- Tech Stack: AWS, Kubernetes (EKS), Kafka, GitOps.
VietQR Payment Platform
HDBank
01.2024 - 11.2024
- Designed and delivered a Napas QR payment system, processing ~7,000 transactions/day with a daily transaction volume of ~EUR 100K.
- Implemented backend services and payment workflows with Go, PostgreSQL, AWS Lambda, and API Gateway, enhancing system integration and transaction processing.
- Defined scalable, secure serverless architecture to meet banking security and compliance requirements.
- Designed event-driven notification system with Amazon DynamoDB Streams and AWS Lambda, minimising unnecessary notification traffic to core banking system.
- Tech Stack: Go, PostgreSQL, AWS Lambda, API Gateway, DynamoDB.
HD Saison Digital Onboarding
HDBank
07.2023 - 03.2024
- Built and delivered an online bank-account opening platform, supporting ~2,000 customer onboardings/day.
- Created SQL-based onboarding workflow encompassing full account-opening lifecycle: Create → Submit → KYC Review → Final Account Creation → User Setup, enhancing user experience.
- Engineered asynchronous processing with AWS SQS and EKS, bolstering reliability and scalability of onboarding workflows.
- Developed banking APIs and partner integrations, overseeing code reviews, coding standards, and engineering quality to ensure robust system performance.
- Tech Stack: Go, PostgreSQL, AWS SQS, EKS, API Gateway.
Document Management Platform
HDBank
07.2022 - 06.2023
- Designed and delivered centralized contract and onboarding document platform, enhancing document retrieval and management for operations teams.
- Designed scalable large-file upload and update workflows using Amazon S3 pre-signed URLs, offloading file transfers from backend services and improving performance under high traffic.
- Implemented asynchronous document-processing workflows using AWS SQS and EKS, increasing reliability and scalability of document handling.
- Led the migration of 17 TB of customer contract files from on-premises storage to AWS with minimal disruption to business operations.
- Tech Stack: Go, PostgreSQL, AWS SQS, EKS, API Gateway, S3.
Software Engineer
Tiki
03.2022 - 07.2022
- Designed and implemented Kafka producers and consumers for asynchronous payment and order-event processing.
- Designed event-driven workflows for payment and order processing, enhancing decoupling between checkout and downstream services.
- Built REST APIs integrating Tiki’s checkout platform with Home Credit to enable Buy Now Pay Later (BNPL) payment flows.
- Collaborated with 15-member engineering team to deliver seamless payment and checkout integrations.
- Domain: E-commerce – Buy Now Pay Later (BNPL).
- Tech Stack: Go, Kafka, MongoDB, React.js.
Go Developer
Orient Commercial Bank (OCB)
10.2020 - 02.2022
- Designed and exposed REST APIs for cross-team integrations, allowing banking teams and services to leverage card-management capabilities.
- Developed and maintained card-management APIs and integrations, enhancing collaboration between banking teams and external systems.
- Built internal card-management portal, streamlining operational and administrative workflows.
- Led and coordinated a 7-member engineering team, driving implementation, code reviews, and technical delivery.
- Domain: Banking – Card Management.
- Tech Stack: Go, Redis, Kafka, Reactjs
Education
B.Sc. - Software Engineering
University of Information Technology, VNU-HCM
Ho Chi Minh City, SG01-2022
Skills
- AWS architecture, Kubernetes, Docker, GitOps, Jenkins
- Microservices architecture
- Cloud migration
- Event-driven architecture
- API development
- Databases & Messaging: PostgreSQL, Redis, MongoDB, Kafka
- Languages: Go (5 years), SQL
- Observability & Performance: Prometheus, Grafana, Monitoring, Alerting, Load Testing
- Microservice architecture
Websites, Portfolios and Profiles
- linkedin.com/in/phucducktpm
- https://github.com/ducnpdev
- https://opendev.hashnode.dev/
- https://viblo.asia/u/ducnp
LANGUAGES
Vietnamese: Native | English: Intermediate (IELTS 5.0+)
Certification
- AWS Solution Architect
Interests
- Football — Playing and following football
Timeline
Mobile App & Backend Rebuild
HDBank Bank
12.2024 - 02.2026
VietQR Payment Platform
HDBank
01.2024 - 11.2024
HD Saison Digital Onboarding
HDBank
07.2023 - 03.2024
Document Management Platform
HDBank
07.2022 - 06.2023
Senior Backend Engineer
HDBank
07.2022 - Current
Software Engineer
Tiki
03.2022 - 07.2022
Go Developer
Orient Commercial Bank (OCB)
10.2020 - 02.2022
B.Sc. - Software Engineering
University of Information Technology, VNU-HCM