Nguyen Thanh Liem —
building financial-grade systems.
Full-Stack Developer since 2022, based in Ho Chi Minh City. I build high-volume systems for financial services — CRM platforms, partner data gateways, and call-center automation — where reliability isn't optional.
Complex business requirements, turned into practical, maintainable systems that scale from day one.
A backend-leaning full-stack developer
Full-stack developer since 2022, with experience spanning backend microservices, frontend web, mobile apps, and database systems. I design with a focus on clean architecture, spot risks early, and build for scalability from day one.
Shifting across different domains of the stack feels natural to me, and I enjoy turning complex business requirements into practical, maintainable solutions.
Tools & technologies
What I reach for to ship reliable software.
Languages
Backend & Frameworks
Frontend & Mobile
Database & Infrastructure
Where I've worked
Full Stack Developer
Owned end-to-end delivery across six internal systems supporting banking-partner integrations and call-center operations — spanning backend services, web, mobile, and desktop.
Partner Integration & Data Gateway
An intermediary gateway for multi-partner data ingestion, syncing transactions and normalizing formats across a unified schema. Routes incoming data to the right CRM system based on product type and business rules.
CRM System
Backend services for customer management, with web-based call logging, activity tracking, and real-time sync to banking systems. Cut response times through caching and async processing at high volume.
Automation & Workflow Systems
Automation workflows for call center operations, integrating voice and messaging tools. Scheduled SFTP/API data exchange with partner banks, running daily and monthly sync jobs.
Mobile Field Applications
Cross-platform apps for field agents to capture leads, submit applications, and log visits — with real-time access to customer data and status, no office trip required.
Internal Operations Desktop App
Desktop tools supporting internal workflows, helping back-office teams process and validate data that needed direct system access beyond the web app.
Document Management System
A system for administrative records and correspondence, automating task and meeting scheduling around document deadlines with full visibility into processing history.
Team & milestones
Moments with the team at SAIGON BPO, and a milestone along the way.
Side projects
Independent work I'm proud of, outside the day job.
Box Tools Web
A modular toolkit platform for daily work automation, built with Next.js and Java Spring Boot. Frontend features a custom i18n system (VN/EN), SSR metadata for SEO, and dynamic imports for code splitting. Backend delivers Spring Boot REST APIs with JPA & PostgreSQL. Automated CI/CD from GitHub Actions to Cloudflare — and expanding toward a multi-user SaaS with JWT authentication.
Academic background
Industrial University of Ho Chi Minh City (IUH)
Bachelor's Degree in Software Engineering
Coursework focused on Object-Oriented Design, Software Architecture, Design Patterns, and full-stack development with Java, Web, and Mobile technologies.
Let's connect
I'm always open to discussing new opportunities, interesting projects, or just geeking out about tech. Whether you have a question or just want to say hi — I'll do my best to get back to you.
Vietnamese (Native) · English (Professional working)