- Back-end: Java 8+ (Spring Boot, WebFlux, JPA, Kafka), C# .NET Core (ASP.NET Web API, EF Core), Node.js Express.
- Front-end: React, Angular 2+, JavaScript/TypeScript, HTML5/CSS3, SCSS/SASS.
- Architecture: Microservices Architecture (MSA), CQRS, DAPR, System Design.
Summary
- 9 years as Software Engineer, with 8 years in Back-end and 2+ years in Full-stack.
- Proven expertise in Microservice Architecture (MSA), design systems, and database optimization for high-throughput systems.
- Deep knowledge of Fintech/banking/payment domains, requiring high consistency and secure data.
- Demonstrated leadership through code reviews, mentoring, and establishing coding standards.
- Passion for system architecture, aiming to become a Software Architect before 35.
Software Engineer
- Birthday: 1995
- Email: huynhcamtuan1995@gmail.com
- Phone: +84 347 431 015
- City: District 11, HCMC, VietNam
- Age: {Now - MyBirthDay}
- Degree: Engineer
- Freelance: Available
- Hobbies: Singing, Badminton, Board games
My quotations:
"There is no question that doesn't have an answer, you just haven't found out the answer yet" ^^!
Skills
Programming Languages / Frameworks
Infrastructure & Messaging
- Messaging: Kafka (consumer lag optimization), RabbitMQ
- DevOps: Docker, Kubernetes, CI/CD (Jenkins, GitLab CI), AWS Cloud
- Monitoring: OpenTelemetry, Grafana, OpenSearch (Tracing & Logging)
Databases & Others
- Databases: PostgreSQL (Optimization & Design), Redis (Caching, Locks, Events).
- Fintech: Business process automation, Payment systems, PSP integration.
- Tools: Postman (auto-scripts, test flows), Git (GitLab, GitHub), CI/CD.
Career
Education
Gia Định UniversityInformation Technology / Software engineering
2013 - 2017
Major: Information Technology / Software engineering
Degree classification: Good
Mode of Study: Full-time
Working Experience
NAB Innovation Centre Vietnam
May 2025 – Present
Backend Engineer
HomeCredit VietNam
As one of the leading digital financial companies in Vietnam,
Jan 2024 - Apr 2025
Software Developer (BE)
Projects: GMA (Global Mobile Application)
- Maintain and develop the backend side of GMA product stream’s feature.
- Write technical documents to support rapid product flow and new service integration.
- Improve service testing coverage up to 90% and overall codebase quality.
- Design Backend solutions; assisted the Online department in user retention.
- Designed and implemented the WelcomeKit-Survey feature.
ITL Corp - VELA
A strategic company member of Indo-Trans Logistics (ITL), which stands for Vietnam Excellence Logistics Alliances, which represents our vision to create a leading logistics alliance in Vietnam. Provide Digital Technology for Sustainable, Optimized, Trusted Logistics Network.
April 2023 – Jan 2024
Technical Project Leader
Projects: VELA project
- R&D making technical solution decisions, resolving disruptions from technical side.
- Propose and implement Dapr in MSA; Saving much developing time, and flexible integration.
- Propose and engage in integrating Grafana (Tempo/Loki/Metrics) to provide tracking request/monitor services.
- Raise issues, report to PM, and propose revolving solutions.
- Develop and maintain Code-base, implement DRY principle.
- Unifying coding conventions and principles, writing documents & relevant technical documents as a guideline for newcomers; Source code control quality, and avoiding smell code.
Galaxy Pay
Company of Sovico Group with the mission of providing strategic consulting solutions, developing digital transformation projects of member companies and operating new technology projects..
Feb 2022 – Mar 2023
Software Engineer
Projects: GPay Payment Gateway.
Teamsize: 4
- Participated in R&D and migrated monolithic architecture to scalable MSA.
- Integrated PSP hub (Napas, MoMo, 2C2P, etc.) into GPay Payment Gateway.
- Collaborated with teams to reach PCI DSS certificate.
- Wrote Postman auto-scripts for automated testing; mentored junior FE devs.
VietCredit Finance Company
VietCredit Finance Joint Stock Company is allowed to execute the activities and the rights of the General Financial Company, according to financial laws and the permission of the State Bank of Vietnam. The company runs the activities such as capital mobility, granting of credit and loans, and other activities.
Nov 2020 – Feb 2022
Backend developer
Projects: Payment services layer, Customer services layer.
Teamsize: 9
- Built an auto-reconcile job for the payment module to eliminate manual tasks.
- Led the integration of E-Contract and 3rd party OCR services (Google Vision/Azure).
- Used Multi-threading and Semaphores to optimize high-volume SMS delivery.
- Developed a centralized system to manage printed instant card information.
TMG & iVIVU
iVIVU.com is a member of TMG Vietnam Group with over 20 years of experience in the field of Tourism - Hotel. iVIVU.com is a pioneer in creating convenient tourism products for domestic customers.
Jun 2017 – Jun 2020
Fullstack developer
Projects: TMG’s WebApps, iVIVU service system.
Teamsize: 9
- Developed and maintained WebApp modules and service systems.
- Integrated 3rd party provider systems into the iVIVU OTA WebApp.
Open new Freelance oppertunity
Present
Freelance & Side Project
As a developer, I always find the chance to learn new technical and work part-time to gain experience and improve myself everday.
Dec 2019 - 2022
Fullstack Developer
- Blockchain: R&D on-chain/off-chain data sync; Smart contracts via Solidity.
- Web: Migrated SSR to SPA (28% performance boost); used Multi-threading for cloud migration.
- Resolved data storage issues using Google Sheets, saving 55% development time.
Achievement
Performance & UX
- Optimized system to process 10M+ records/week while maintaining 95% test coverage.
- Reduced loading time by 90% for inbox messaging through query optimization.
Cost & Infrastructure
- Unified microservices with zero-downtime, saving $12,000/month in infrastructure costs.
- Custom survey feature saved 40%+ operational costs by eliminating external vendors.
Security & Compliance
- Contributed to PCI DSS certification; solved a production bug with $1M financial impact.
- Executed zero-downtime migration for sensitive data using non-sensitive identifier enrichment.
System Integration
- Integrated PSP providers (MoMo, 2C2P, etc.) processing 300B+ VND/month.
- Integrated E-Contract & OCR services, reducing 60%+ paper contract costs.
Outstanding Project in 2022
Feb 2022 - Sep 2022
Key contributor in launching a payment gateway service in under 5 months. Successfully integrated with VietJetAir, handling over 300B VND in transaction value monthly.
Contact
Contact me for work.