SOFTWARE DEVELOPER
Hi, I'm Nhan
Hey there! I'm a software engineer who loves bringing ideas to life on the web. From crafting sleek React interfaces to building reliable backends with Go or Node.js, I build applications that are both user‑friendly and rock‑solid. I especially enjoy backend development and system design—turning complex challenges into smooth, dependable services.
When I'm off the clock, you'll often find me poring over company reports and market trends as a part‑time investor. To me, researching stocks and architecting systems both come down to the same fun stuff: creativity, curiosity, and a knack for solving puzzles.
Work Experience
Fullstack Developer
2024 - PresentCirca
Collaborated on full-stack development of frontend and backend systems for a pharmaceutical retail chain, integrating with Buyemed to optimize inventory and order processing. Architected and built a scalable multi-tenant retail application ensuring secure tenant isolation.
- Built frontend and backend features to streamline inventory management and order workflows
- Designed and implemented multi-tenant architecture to support rapid business growth
- Ensured seamless integration with Buyemed for real-time data synchronization
Backend Developer
2022 - 2024Buymed
Led backend engineering for Buymed’s core fulfillment and logistics management services. Optimized database performance, integrated third-party providers, and drove infrastructure upgrades to support compliance and scalability.
- Developed a custom fulfillment system achieving 100% regulatory compliance during audits
- Reduced average logistic lead time to under 30 hours through data-driven routing and scheduling
- Tuned database queries to get 92nd-percentile response times below 200 ms
- Migrated MongoDB from a replica set to a sharded cluster, boosting query performance by 40%
- Integrated with GHTK, ViettelPost, and Be, cutting delivery processing time and raising customer satisfaction
- Enhanced warehouse accuracy by adding RFID item tracking and Qdrant-powered image recognition
My techstack
Frontend
Backend
Database & Queue
Infrastructure
CICD
Collaboration
Get In Touch
I'm always open to discussing new projects, creative ideas or opportunities to be part of your vision. Feel free to contact me through any of the following channels.