Backend & APIs
REST and GraphQL services in multiple backend languages. Relational data modelling, payment and sync workflows, and third-party integrations.
Open for freelance projects
Tan Nguyen, Full Stack Engineer
Technical Team Lead and Full Stack Engineer
Full stack engineer shipping production systems across web, mobile, backend, payments, integrations, and automation. 8+ years in product engineering and DevOps, now extending into generative AI agents and realtime media.
Stack
What I reach for in production — services, web, mobile, hardware, realtime, AI.
Daily-driver tools have years of shipped mileage. Newer entries reflect ongoing work on generative AI agents, realtime media, and self-hosted model serving.
AI & Realtime
Voice and chat agents over realtime transport, hosted realtime model APIs, self-hosted model inference, and tool-call protocols. Realtime messaging across pub/sub and event streams.
Web Frontend
Server-rendered and single-page apps, scheduler and calendar UIs, and content-driven static sites.
Mobile & Cross-Platform
Cross-platform mobile apps shipping to iOS and Android, Windows desktop surfaces, and bridge SDKs for embedded mini-app experiences.
Hardware & Payment Integrations
Thermal printers over wired and wireless transports. Card terminals, online payment processors, magnetic card readers, and telephony channels. Maps-based booking onboarding.
Infra & DevOps
Containers on Linux behind reverse proxies, edge functions, PaaS hosting workflows, headless CMS and BaaS backends, and low-code automation runners.
Freelance Services
Available for focused freelance builds.
I can help with short delivery cycles, integration-heavy features, platform work, and pragmatic product builds for teams that need senior execution.
Web Apps and Admin Systems
Build operational dashboards, internal tools, customer flows, and admin panels with reliable API-backed workflows.
Backend APIs and Integrations
Design REST APIs, payment flows, third-party integrations, authentication, notifications, and data services.
Payment and Hardware Integrations
Connect card terminals, thermal printers, online payment processors, scheduling flows, and operational workflows.
AI Agents and Automation
Connect chat or voice AI agents to existing services, MCP tools, low-code automations, and business workflows.
Timeline
Experience from internships to technical leadership.
- 1
Mar 2023 - Present
Technical Team Lead
Ho Chi Minh City, Vietnam
- Lead Agile/Scrum delivery across multiple business operations and customer-facing products.
- Own backend API design, mobile app maintenance, and cross-platform architecture support.
- Drive payment terminal, thermal printer, realtime messaging, container, and edge function integrations.
- 2
Mar 2018 - Mar 2023
Full Stack Engineer
Ho Chi Minh City, Vietnam
- Built backend APIs, frontend modules, hardware integrations, and internal platform capabilities.
- Operated in Agile delivery with code review, CI, package management, and store release workflows.
- 3
Jun 2023 - Dec 2024
Full Stack Engineer
tiny.vn
Ho Chi Minh City, Vietnam
- Built network latency improvement software for gamers using Laravel APIs and Vue applications.
- Delivered web, admin, and Electron desktop client surfaces.
- 4
Nov 2021 - Jan 2022
Full Stack Engineer
Superlution
Ho Chi Minh City, Vietnam
- Built Lumen backend APIs and Nuxt.js frontend for a crypto user and investor connection platform.
- 5
Sep 2017 - Aug 2019
Software Developer
VNUHCM - University of Science
Vietnam
- Worked on WebRTC live-stream broadcasting, PeerJS, TURN/STUN configuration, and Socket.io real-time game show features.
- Delivered React, REST API, Google Maps API, WPF, Node.js, HTML, Handlebars, TCP, and UDP projects.
- 6
Oct 2017 - Jan 2018
Web Development Intern
TRILUAT Information System Corporation
Vietnam
- Worked with C#, ASP.NET Zero, Angular 1.x, jQuery, Entity Framework, Swagger, REST APIs, and SVN.
- 7
Jun 2016 - Aug 2016
IT Help Desk Intern
Matbao BPO
Vietnam
- Supported IT help desk operations during internship.
VNUHCM - University of Science
Bachelor's Degree in Software Engineering · 2015 - 2019
Projects
Selected systems and products.
Freelance
locnuocbinhtan.com/Loc Nuoc Binh Tan Website
Marketing website for a water purifier business in Ho Chi Minh City, built as a static site on Astro with headless WordPress as the content source and deployed to Cloudflare Pages, tuned for Google SEO.
Static siteHeadless CMS integrationSEO optimization
Freelance
thietbichebienthucpham.vn/Food Processing Equipment E-commerce Website
Company e-commerce website for an industrial food processing equipment supplier, built with Strapi Headless CMS and Nuxt SSR and deployed on cPanel.
E-commerce websiteCMS developmentSSR frontend
Freelance
reckless.vnreckless.vn API Synchronizing
API gateway for synchronizing orders and products across pages.fm, KiotViet, and Shopify, with advertising statistics from Facebook Graph API and TikTok Marketing API.
API integrationOrder synchronizationAds data pipeline
Freelance
E-commerce SKU Image and Warehouse Synchronization
E-commerce integration project that used Google Search API to match 10,000 product SKUs with images and synchronized products, orders, and warehouse data from Nhanh.vn.
Product data matchingWarehouse synchronizationCommerce integration
Freelance
dimteam.vndimteam.vn API Synchronizing
API gateway connecting Shopify order and product data from dimteam.vn with Nhanh.vn warehouse management, plus Docker-based Airflow and Metabase setup for analytics.
API synchronizationWarehouse integrationAnalytics setup
Freelance
Learning Chinese Website
Chinese learning website with a Yii2 backend, Nuxt frontend, YouTube iframe-based lessons, and an article module for content writers.
Education websiteBackend developmentFrontend development
tiny.vn
Network Latency Improvement Software
Gaming network latency improvement software with web, admin, and Electron desktop client surfaces.
Laravel APIVue appDesktop client
Homelab
Self-hosted tools I study and run.
A compact view of services I have applied in my own lab across local AI, storage, deployment, monitoring, automation, data, and private networking.
24 tools View homelab stack Hide homelab stack
Homelab
Self-hosted tools I study and run.
A compact view of services I have applied in my own lab across local AI, storage, deployment, monitoring, automation, data, and private networking.
AI and models
3Ollama
Run local LLMs for private experiments, agents, and model testing.
Unsloth
Experiment with efficient model fine-tuning and local training workflows.
ESP32 Chatbot
Prototype embedded chatbot and voice assistant workflows on ESP32 hardware.
Storage and media
3Immich
Back up and manage personal photos and videos in a self-hosted media library.
OpenMediaVault
Manage NAS storage, shared folders, and home backup workflows.
Syncthing
Synchronize files directly between devices without relying on a central cloud service.
Platforms
5Proxmox
Run VMs and containers for self-hosted services, experiments, and lab environments.
CapRover
Deploy web apps and services with simple app hosting workflows.
Dokploy
Manage self-hosted application deployments and server environments.
1Panel
Manage server apps, containers, websites, and operations from one panel.
Portainer
Operate Docker containers, stacks, images, volumes, and environments.
Automation and ops
3n8n
Build workflow automations that connect APIs, webhooks, and internal tools.
Uptime Kuma
Monitor service uptime, endpoints, and health checks across the homelab.
ntfy
Send lightweight push notifications from scripts, monitors, and services.
Knowledge tools
1Trilium Notes
Keep self-hosted technical notes, references, and structured knowledge.
Data and dev tools
6Directus
Explore headless CMS and data admin workflows on top of SQL databases.
Metabase
Build dashboards and explore data for reporting and operational visibility.
Airflow
Schedule and orchestrate data workflows, background jobs, and pipelines.
YOURLS
Run a self-hosted short-link service for personal and internal links.
CCXT
Test exchange API integrations and crypto market data workflows.
Redpanda
Study Kafka-compatible streaming and event-driven infrastructure.
Networking
3WireGuard
Create secure VPN access for private services and remote lab networks.
Cloudflare Tunnel
Expose private services securely without opening inbound ports on the network.
Tailscale
Connect private devices and services through a simple mesh VPN overlay.
Contact
Tell me about your freelance project.
Share your contact details and project context. I can follow up directly to discuss scope, timeline, and next steps.
Good fit for
- Web apps, admin systems, CRM, booking, and POS workflows
- Backend APIs, payments, third-party integrations, and automation
- Go and Node.js microservices for payment monitoring, tracking, and operations
- Voice or chat AI agents, MCP servers, and automations for existing codebases
Direct contact