Quoc Nguyen

$ Senior .NET Team Lead · AI & Cloud _

Been writing code since 2010. Fifteen years in, I've shipped POS systems running in 60+ stores, healthcare apps, mobile solutions, ERP platforms, Amazon seller tools—and yeah, a couple of games too.

I work out of Ho Chi Minh City with teams scattered across the globe. On the side, I mentor projects like RecyclerWorld (an NGO focused on recycling education) and help startups figure out their tech stack.

.NET Team Lead Scrum Master AI/ML Certified AWS Cloud Architect

15+

Years Shipping

50+

Projects Delivered

15+

Certs & Courses

View Fully About Me Download Resume

What I Work With

Tools I've picked up over 15 years — some I genuinely like, others I tolerate

Languages & Platforms

C# .NET Core MAUI JavaScript TypeScript Python Node.js SQL

Web & APIs

ASP.NET Core Blazor WebAPI gRPC React Angular REST

Architecture & Patterns

Microservices Event-Driven Clean Architecture DDD CQRS MVVM

Cloud & DevOps

Azure AWS Docker Kubernetes GitHub Actions CI/CD

AI & Agents

Gemini Claude LangChain Agentic Workflows MCP RAG

Databases

SQL Server PostgreSQL MongoDB Redis Firebase

Methodologies & Tools

PMP Agile Scrum TDD Automated Testing JIRA

Experience

Where the code went — and what it did when it got there

Retail Management Hero (RMH)

Technical Lead & Solution Architect

Jul 2015 – Present

RMH Point of Sale Ecosystem

Owned the POS platform from day one — grew it from a single-store pilot to 60+ locations
Broke apart a monolith into gRPC services that cut deployment cycles by 80%
Built the sync engine that keeps 60+ offline stores in lockstep with HQ, even on flaky connections

C# .NET Microservices gRPC SQL Server

RMH Mobile Solutions

Built mobile apps that warehouse staff could use one-handed while scanning shelves
Shipped MAUI and Xamarin apps to both iOS and Android — same codebase, zero compromises
Wired mobile directly into the POS backend so inventory updates hit in real-time

MAUI Xamarin WebAPI Azure DevOps

RMH Cloud Integration Platform

Moved 60+ stores to Azure — from bare-metal servers to event-driven cloud in 6 months
Built a real-time pipeline on Service Bus that processes store events as they happen
Stood up a BI dashboard that replaced 12 weekly Excel spreadsheets

Azure Event-Driven Docker CI/CD

DNAfor.NET

Senior Software Developer

May 2011 – Jul 2015

ChartLogic Healthcare EMR

Wired up HL7 feeds so patient data flows in real-time — no more fax machines
Shipped a WPF desktop app that clinic staff actually wanted to use daily
Connected 7 third-party systems through a single WCF service layer

WPF MVVM WCF SQL Server

GoComics Mobile Application

Built a comic reader used by 200K+ daily readers — Ionic/Cordova hybrid
Plugged MongoDB behind the content pipeline for instant page loads
Shipped to both app stores in under 3 months from first commit

Ionic Cordova MongoDB JavaScript

Independent Consulting

Expert Software Developer

Jan 2011 – Present

DN Game Studio Projects

Ran a 5-person game dev crew shipping Unity titles to Google Play
Set up cloud backends on Azure and AWS — matchmaking, leaderboards, analytics
Handled everything from concept to launch, including client pitches

Unity Azure AWS .NET

LSB Organization (Amazon Seller Tools)

Cut Amazon listing time by 70% with Blazor-powered automation tools
Designed the backend from scratch — API-first architecture on AWS
Deep integration with Amazon SP-API: inventory sync, pricing rules, order tracking

.NET Blazor AWS Amazon API