// FULL STACK ENGINEER · BANGKOK, THAILAND

Hello, I'mTawatchai Insree

>_

I architect scalable Backend Systems.

I orchestrate Kubernetes on AKS & k3s.

I design REST APIs & real-time WebSockets.

I write TypeScript, Go & Python.

I build reactive UIs with Angular.

I stream events through Kafka & RabbitMQ.

I connect IoT devices over MQTT.

I scale on Azure AKS & GCP.

I own Production — 24/7.

I model PostgreSQL, MSSQL & Redis that scale.

I tune queries & indexes for peak performance.

I search with Elasticsearch.

I integrate Grab, Shopee & Lazada.

I wire up Payment Gateways.

I ship with Docker & CI/CD Pipelines.

I monitor with Grafana & Loki.

I secure with JWT, OAuth2 & rate limiting.

I program ESP32 & Raspberry Pi.

I serve local LLMs on a Tesla V100.

I run llama.cpp & vLLM behind an OpenAI-compatible gateway.

I stream tokens over SSE at 111 tok/s.

I build RAG on pgvector.

I think in systems, not just services.

I solve hard problems fast.

I thrive under Production Pressure.

TypeScriptGoPythonNestJSAngularFastAPIKubernetesDockerKafkaRabbitMQPostgreSQLMSSQLLLMllama.cppvLLMRAGCUDAProxmoxIoTMQTTAzureGCPArgoCDWoodpeckerPrometheusGrafanaLoki
About
Tawatchai Insree profile photo

I’m Tawatchai Insree, a Senior Full Stack Software Engineer based in Bangkok with 8+ years of experience delivering end-to-end production systems across e-commerce, logistics, IoT, fintech, and education domains. Currently at RIS Co., Ltd., I own multi-platform product & listing pipelines powering integrations with Grabmart, Lineman, Foodpanda, Shopee, Shopee Mart and Lazada — built on NestJS, Go, Python, and Angular running on Azure Kubernetes Service (AKS).

My stack spans scalable microservice backends, real-time WebSocket & MQTT systems, cloud-native deployments on AKS & GCP, embedded firmware on ESP32, Arduino, and Raspberry Pi, and payment integrations with Omise and direct bank APIs. I work as a production owner — handling reliability, performance tuning, incident response, and continuous system improvement.

I also run a home AI stack: a single-node k3s cluster and a Tesla V100 32 GB serving a Qwen3.6-35B-A3B MoE model at ~111 tok/s through llama.cpp and vLLM behind a FastAPI OpenAI-compatible gateway — powering a Microsoft Teams work secretary with a pgvector knowledge base, a public chat at chat.emmiedev.com, and the assistant on this page.

Download CV (PDF)View Resume
Projects
Work · Current2024 — Present
Marketplace Integration Platform

Multi-platform product & order pipelines for Grabmart, Lineman, Foodpanda, Shopee and Lazada — catalog sync, stock management, and real-time order routing at scale.

NestJSGoPythonAngularRabbitMQKafkaPostgreSQLMS SQLAKS
RIS Co., Ltd.
Work2021 — 2024
insure.gensiri.com

Online insurance platform — policy comparison, quotation flow, and checkout with credit-card and installment payment through Omise and direct bank APIs.

AngularNestJSNode.jsMongoDBOmiseDocker
Legionnest Co., Ltd.
Work2021 — 2024
manditt.com

E-commerce platform with product catalog, cart and checkout, order management, and an admin back office — built on a MEAN stack behind GitLab CI/CD.

AngularNestJSMongoDBMySQLDockerGCP
Legionnest Co., Ltd.
Work2021 — 2024
petsconnex.com

Pet services marketplace where each provider lists consultation, bathing, grooming and pet products — booking, provider profiles, and order handling in one place.

AngularReactNestJSMongoDBDocker
Legionnest Co., Ltd.
Work2021 — 2024
caresconnex.com

Health and medical commerce platform — product catalog, vouchers, appointment booking, medical data analysis, and health verification from wearable devices.

AngularNestJSMongoDBMQTTDockerGCP
Legionnest Co., Ltd.
Work2019 — 2021
wiplux.com — IoT Smart Energy Monitor

Smart plug IoT platform with real-time energy monitoring, remote scheduling and multi-device control — ESP32 firmware, MQTT transport, and a live Angular dashboard.

ESP32C/C++Node.jsAngularMQTTMongoDBGCP
Intellect Network Web Co., Ltd. wiplux.com
Freelance2018 — Present
Building Inspection & Monitoring System

Mobile-friendly field data collection with a multi-site dashboard and automated PDF compliance reports for building inspection teams.

NestJSAngularPostgreSQLPDF
Self-employed
Freelance2018 — Present
Binance Copy-Trading Automation

Real-time order mirroring engine over the Binance WebSocket API with position sizing, risk controls, execution monitoring and Telegram alerting.

Node.jsWebSocketBinance APITelegram Bot
Self-employed
Freelance2018 — Present
School Management System

Class scheduling, attendance tracking and student records with separate teacher and administrator portals.

AngularNode.jsMySQL
Satree Phuket School
Freelance2018 — Present
Wholesale Alcohol Sales Platform

Product catalog, order processing and inventory management with automated Thai tax invoice generation for a licensed wholesale business.

NestJSAngularMS SQL
Self-employed
Homelab · AI2025 — Present
LLM-Local — Local Inference Stack

llama.cpp and vLLM engines on a Tesla V100 behind a FastAPI OpenAI-compatible gateway, with a NestJS + Angular console for engine, model and API-key management.

llama.cppvLLMFastAPINestJSAngularCUDAsystemd
emmiedev.com llm.emmiedev.com
Homelab · AI2025 — Present
Teams Work Secretary

An assistant that reads Microsoft Teams threads, retrieves from a pgvector knowledge base and drafts replies — rolled out through staged OFF, OBSERVE, SHADOW and LIVE run modes.

FastAPIAngularPostgreSQLpgvectorRAGPower Automate
emmiedev.com
Homelab · AI2025 — Present
chat.emmiedev.com

A public chat UI in front of the home GPU with per-visitor token allowances and a slot semaphore, so strangers can never queue ahead of the work assistant.

NestJSAngularPostgreSQLSSEDocker
emmiedev.com chat.emmiedev.com
Homelab2024 — Present
k3s Homelab Cluster

A single-node k3s cluster behind home NAT, reachable only through an SSH reverse tunnel to a DigitalOcean VPS, fronted by Cloudflare with Traefik v3 and Longhorn storage.

k3sTraefik v3Longhorncert-managerArgoCDCloudflare
emmiedev.com
Homelab2025 — Present
auth.emmiedev.com — Single Sign-On

Google SSO for every homelab service through Traefik ForwardAuth — downstream apps get identity headers and carry no authentication code of their own.

NestJSTraefik ForwardAuthOAuth 2.0JWT
emmiedev.com
Homelab2025 — Present
Fleet Monitoring Stack

Prometheus, Grafana, Loki and blackbox on a dedicated VM scraping every machine from outside the cluster — so the dashboards still work when the cluster is the thing that broke.

PrometheusGrafanaLokiblackboxDocker Compose
emmiedev.com
Homelab2023 — Present
Coding Challenges Judge

A self-hosted competitive programming judge — sandboxed multi-language execution in throwaway Kubernetes Jobs, a live leaderboard, and shareable submissions.

GoFastifyAngularPostgreSQLRedisk3s
emmiedev.com emmiedev.com/challenges
Homelab2025 — Present
emmiedev.com/blog

A writing platform for engineering notes — NestJS and Prisma behind a server-rendered Angular reader with markdown, syntax highlighting and maths.

NestJSPrismaPostgreSQLAngular SSR
emmiedev.com emmiedev.com/blog
Homelab Infrastructure
0110+1 VPSVMs on one Proxmox host
0254vCPU allocated
0398GBRAM allocated
04111tok/sTesla V100 · 32 GB VRAM
Home network · behind NATno ports forwarded
Proxmox VE · 10 VMs54 vCPU · 98 GB RAM
autossh reverse tunnel · the only way in
Internet visitors
Cloudflare CDN · DDoS
VPS relay DigitalOcean SGP1static IP · nginx
llm-server VM 200GPU inference host8 vCPU · 24 GB · NVIDIA Tesla V100-PCIE 32 GB · ~111 tok/sNVIDIA Tesla V100 32 GBllama.cpp + vLLM enginesgeneration · embeddings · reranking
AI VM 100k3s single node14 vCPU · 24 GB
monitor VM 101observability4 vCPU · 8 GB
CICD VM 106build & deploy8 vCPU · 8 GB
registry VM 103container registry4 vCPU · 8 GB
edge VM 104ingress & SSO2 vCPU · 4 GB
data VM 105databases2 vCPU · 4 GB
storage VM 107bulk storage4 vCPU · 6 GB
win11 VM 102Windows workstation4 vCPU · 8 GB
gateway VM 201spare capacity4 vCPU · 4 GB
Measured, not assumed
  • Speculative decoding (MTP) lifted the serving rate from 88.2 to 111.1 tok/s — about +28%.
  • CUDA 13 dropped Volta, so this card is pinned to driver 580 and the CUDA 12 toolkit.
  • The card throttles at HBM rather than the core, so the useful signal is thermal-slowdown time, not GPU temperature.
Experience
Mar 2024 — PresentCurrent
Senior Full Stack Software Engineer
RIS Co., Ltd.
  • Architected multi-platform product & listing pipelines for Grabmart, Lineman, Foodpanda, Shopee, Shopee Mart and Lazada — catalog sync, stock management, and order routing at scale.
  • Built order management system handling order ingestion, status tracking, fulfillment routing, and reconciliation across all delivery platforms.
  • Designed event-driven price & stock synchronization using RabbitMQ and Kafka — decoupled producer/consumer pipelines ensuring near-real-time inventory consistency across all marketplace integrations.
  • Built microservice backends in NestJS (TypeScript) and Go; data pipeline workers in Python; all backed by PostgreSQL and MS SQL with optimized query layers.
  • Developed internal Angular admin dashboards for product management, promotion configuration, order monitoring, and real-time platform status.
  • Containerized all services with Docker; managed CI/CD pipelines via Azure Pipelines for automated build, test, and deployment workflows.
  • Deployed and operated all workloads on Azure Kubernetes Service (AKS) — rolling updates, HPA autoscaling, resource tuning, and namespace management.
  • Served as production owner: on-call incident response, query profiling, performance bottleneck resolution, and reliability improvement initiatives.
  • Built internal automation tools in Go and Python to eliminate repetitive operational tasks and accelerate delivery workflows.
Jan 2018 — PresentFreelance
Senior Software Engineer
Self-employed
  • Building inspection & monitoring system — NestJS + Angular + PostgreSQL; mobile-friendly field data collection, multi-site dashboard, and automated compliance report generation (PDF).
  • Binance copy-trading automation — Node.js + Binance WebSocket API; real-time order mirroring engine, position sizing logic, risk controls, execution monitoring, and Telegram alerting.
  • School management system (Satree Phuket) — Angular + Node.js + MySQL; class scheduling, attendance tracking, student records, teacher and admin portals.
  • Wholesale alcohol sales platform — NestJS + Angular + MS SQL; product catalog, order processing, inventory management, and automated Thai tax invoice (ใบกำกับภาษี) generation.
May 2021 — Feb 2024
Senior Full Stack Developer
Legionnest Co., Ltd.
  • Built and maintained full-stack web products using Angular, React, NestJS, Node.js/Express, and MongoDB / MySQL / MariaDB — e-commerce, insurance, healthcare, and pet-service platforms.
  • Developed MQTT (EMQX broker) + WebSocket real-time communication layers for IoT device management dashboards.
  • Integrated payment systems: Omise gateway (credit card, installment) and direct SCB / KBank bank APIs for full and installment payment flows.
  • Containerized all services with Docker; implemented GitLab CI/CD pipelines for automated build, test, and deploy.
  • Maintained GCP Compute Engine Linux servers — Nginx reverse proxy, SSL/TLS, firewall, and performance monitoring.
May 2019 — Apr 2021
Full Stack Developer
Intellect Network Web Co., Ltd.
  • Delivered end-to-end IoT products: firmware on ESP32, Arduino, Raspberry Pi + Node.js/Python backend + Angular real-time monitoring dashboards.
  • Implemented MQTT-based bi-directional device communication for sensor data streaming and remote control with sub-second latency; backed by MongoDB and MySQL on GCP.
  • Programmed microcontrollers in C/C++ (ESP32, Arduino) and Python on Raspberry Pi / Orange Pi running embedded Linux.
  • Designed PCB schematics and circuit prototypes using Proteus for hardware validation before production manufacturing.
Education
Bachelor's Degree in Computer Engineering
Rajamangala University of Technology Srivijaya, Songkhla
2015 — 2019
B.Eng.
Vocational Certificate in Electronics Technician
Hatyai Technology College, Songkhla
2012 — 2015
Vocational
Skills & Expertise
AI & LLM Engineering
  • llama.cpp
  • vLLM
  • GGUF Quantization
  • Speculative Decoding (MTP)
  • KV-Cache Sizing
  • OpenAI-compatible Gateway
  • SSE Token Streaming
  • RAG / pgvector
  • Prompt Engineering
  • Agentic Coding Tooling
  • LLM Benchmarking (TTFT / tok-s)
GPU & Model Ops
  • Proxmox VE
  • NVIDIA Driver / CUDA 12.x
  • VRAM Budgeting
  • Concurrency & Queue Control
  • Throughput vs Latency Tuning
  • GPU Thermal & Fan Control
  • systemd Unit Design
  • nvidia-smi / DCGM Metrics
Languages
  • TypeScript
  • JavaScript
  • Go
  • Python
  • Embedded C / C++
Backend
  • NestJS
  • Node.js
  • Express.js
  • FastAPI
  • RESTful API
  • WebSocket
  • MQTT
  • OAuth / JWT
  • TypeORM
  • Scripting / Automation
Frontend
  • Angular
  • React
  • Ionic
  • RxJS / Signals
  • Angular SSR
  • HTML5 / CSS3
  • SCSS / SASS
Databases
  • PostgreSQL
  • MS SQL
  • MySQL / MariaDB
  • MongoDB
  • Redis
  • pgvector
  • Schema Design
  • Query Optimization
Cloud & Platform
  • Kubernetes (AKS, k3s)
  • Docker
  • Azure
  • Azure DevOps
  • GCP
  • Linux / Nginx
  • SSL/TLS
  • Reverse Proxy
  • Cloudflare / Forward-auth SSO
  • Reverse SSH Tunnel / NAT Traversal
CI/CD & GitOps
  • Azure Pipelines
  • Woodpecker CI
  • ArgoCD
  • GitOps / Declarative Deploys
  • Harbor Registry
  • Multi-stage Image Builds
  • Image Tagging & Promotion
  • Rollback & Self-heal
  • Trivy Image Scanning
  • Self-hosted Runners
  • Pipeline Test Gates
Observability & Monitoring
  • Prometheus
  • Grafana
  • Loki
  • Alertmanager
  • Blackbox Exporter
  • node-exporter
  • NVIDIA GPU Exporter
  • kube-state-metrics
  • pve-exporter
  • windows-exporter
  • OpenObserve
  • Structured Logging
  • Alert Rules & Runbooks
  • Latency & Throughput Dashboards
Architecture & Integration
  • Microservices
  • RabbitMQ
  • Kafka
  • System Design
  • ER Diagram
  • Payment Integration
  • Omise / Bank APIs
  • Mono Repo
  • Cronjob / Scheduler
  • Git
  • Agile / Scrum
Embedded & IoT
  • Raspberry Pi / Orange Pi
  • Arduino / ESP32
  • Embedded Linux
  • PCB Schematic (Proteus)
Testing & QA
  • Jest
  • Cypress
  • Supertest
  • Postman
  • Swagger / OpenAPI
Rewards
2019
1st Place
Natural Disaster Alert System with IoT — 10th Engineering Academic Event
RMUT Academic Skills Competition · Lanna Campus
Developed an IoT-based early warning system for natural disasters. Won 1st place trophy.
2019
2nd Runner-Up
Smart Home System Development — 9th Engineering Academic Event
RMUT Academic Skills Competition · Krungthep Campus
Developed embedded software for electronic devices in a Smart Home system competition.
2018
1st Place
Team Programming Competition — 8th Engineering Academic Event
RMUT Academic Skills Competition · Isan Campus, Khon Kaen
ACM-ICPC style team contest (C / C++ / Java). Won 1st place trophy.
2015
1st Runner-Up
Microprocessor Programming & Circuit Design Competition
Southern Regional Academic Skills Competition
Programmed and designed microprocessor circuits in C with PIC microcontrollers.
2014
1st Place
Digital Circuit Design Competition
Southern Regional Academic Skills Competition
Designed synchronous and asynchronous counting circuits using IC Digital.
2013
1st Runner-Up
Digital Circuit Design Competition
Southern Regional Academic Skills Competition
Designed synchronous and asynchronous counting circuits using IC Digital.
Contacts
Phone
+66 82-639-8606
Email
tawatchaiinsree@gmail.com
LinkedIn
Tawatchai Insree
GitHub
github.com/emmiedev
Location
Bangna, Bangkok, Thailand
Availability
Open to new opportunities
Chat with my LLM
chat.emmiedev.com