MINHNGUYEN THANH

YEARS BUILDING

04+

SINCE 2022

PRODUCTION ENVIRONMENTS

03

DEV / STAGING / PROD

SERVICE OWNERSHIP

END → END

DESIGN → DEPLOY → OBSERVE

FOUR YEARSIN PRODUCTION.

1. 2025→ NOWHO CHI MINH CITY

   Backend Engineer

   Vortech Service Company Limited

   May 2025 — Present

   Realtime gaming platform covering wallet, transactions, game state and user activity.

   • Built and operated event-driven backend services in Node.js, exposing REST and gRPC APIs.
   • Hardened Kafka consumers — manual offset commit, retry/DLQ strategy, heartbeat tuning, idempotent handlers — cutting duplicate and lost-message incidents.
   • Designed distributed flows spanning API gateway, WebSocket services, Redis, message queues and third-party integrations.
   • Led production incident investigation: log and trace analysis, root-cause identification, permanent fixes rather than restarts.
   • Ran services across dev, staging and production with Docker and CI/CD pipelines.

   STACK

   • Node.js
   • Kafka
   • RabbitMQ
   • gRPC
   • Redis
   • Elasticsearch
   • WebSocket
   • Docker
2. 2023→ 2025HO CHI MINH CITY

   Software Developer

   Kingfoodmart

   February 2023 — May 2025

   PREVIOUSLY · Back End Developer · Feb 2023 — Jul 2023

   Internal web platform, POS and retail operations.

   Internal Web Platform

   TEAM OF 4

   • Built backend APIs for invoicing, promotions and reporting.
   • Cut query time on large datasets by moving heavy aggregation off the request path into Kafka/RabbitMQ workers.
   • Integrated payment webhooks with third-party providers (Onelife, MoMo).
   • Added centralized logging and tracing to microservices via Elasticsearch, reducing debugging time on production issues.
   • Built the React admin screens for invoicing, promotion and reporting alongside the APIs behind them.
   • Mentored 2 engineers on debugging and code quality.

   POS & Internal Operations App

   TEAM OF 3 · FLUTTER

   • Improved POS startup and operation speed by 30%.
   • Implemented async processing for high-volume invoices with offline-safe data integrity.
   • Shipped promotion and loyalty program integration.

   Platform Migration

   FIRST 6 MONTHS

   • Migrated the codebase from Express.js to NestJS.
   • Redesigned and optimized the database schema; set up sharding, replication and backups.
   • Added unit and end-to-end integration tests; configured CI/CD pipelines.

   STACK

   • Node.js
   • NestJS
   • React
   • Flutter
   • Kafka
   • RabbitMQ
   • SQL Server
   • Redis
   • Elasticsearch
   • Socket.IO
   • Docker
   • AWS S3
3. 2022→ 2023GO VAP, HO CHI MINH CITY

   JavaScript Developer

   Overate-Vntech

   June 2022 — February 2023

   CRM, social platforms and distributed storage services.

   • Maintained and documented REST/GraphQL APIs for CRM and social media clients.
   • Built a resource upload service and maintained a Socket.IO chat server.
   • Sharded data storage with Apache Cassandra.
   • Implemented cross-table keyword search with Elasticsearch.
   • Containerized and deployed web services across multiple platforms.

   STACK

   • Node.js
   • NestJS
   • Kafka
   • Cassandra
   • Elasticsearch
   • Kibana
   • Redis
   • Docker
   • Socket.IO

SYSTEMS I OWNEDEND TO END.

Not public repositories — these are the engineering domains behind the products I have shipped and operated.