Komsan Nipharat

Languages

Go

Backend

NestJS · Node.js

Data

MongoDB · PostgreSQL · Redis

Queues

RabbitMQ · NSQ

• A & P Innovate Service Co., Ltd.Oct 2026 – Present

  Software Developer · Outsourced · Bangkok, Thailand

  • Building a manufacturing and warehouse ERP for a frozen-food producer (sales, production, warehouse, and loading bay) in TypeScript, React, Node.js, and PostgreSQL; delivered auth hardening, warehouse flows, and master data across 50+ merged pull requests.
  • Set up an AI-assisted delivery pipeline: agents draft code and tests, and every change goes through my review and CI before merge. Restored the failing CI pipeline.
• GRAM Software Solution Co., Ltd.Sep 2023 – Sep 2026

  Full Stack Developer · Bangkok, Thailand

  • Lead developer of the Tago driver app (10K+ Play Store installs) and sole developer of TruckKrub and ล่าค่าเที่ยว (La Kha Thiao), both live on iOS and Android.
  • Cut the API Docker image from 2.6 GB to 1.17 GB by moving PDF rendering from Puppeteer to Gotenberg.
  • Upgraded the Angular back office from v17 to v22 and built its multi-tenant white-label system.
  • Sole developer of the bank QR payment service that connects yard and transport billing to two Thai bank QR payment rails.
  • Documented servers, deploy playbooks, and a domain primer so the platform can be operated and handed over without tribal knowledge.
  • About 3,400 commits across 24 repositories and 12 products; sole or near-sole author of 16 of the 24 repositories.
• AddTech Hub Public Company LimitedApr 2020 – Sep 2023

  Software Developer · Bangkok, Thailand

  • Main author of the New MVAS scheduler in Go + NSQ (597 of 657 commits), which sends subscription content and charges across three Thai mobile operators.
  • Main author of the campaign platform's NestJS service (348 of 423 commits): services, redeem codes, USSD callbacks, partner callbacks, and Kibana reporting.
  • Built the carrier-billing portal and partner dashboard in Angular, including fixes from a penetration test.
  • Fixed production deadlocks, retries, and slow MongoDB queries by moving blocklist and subscription checks to aggregations.

• Tago Express TMS platform · Core backend contributor (#2 of the API) and co-lead of the Angular back office

  Transport and container-yard management: gate-in/out, surveys, EIR, yard plans, orders, driver assignment, invoicing, and receipts. One platform serves several white-label tenants.

  NestJS · Angular · PostgreSQL · MongoDB · Redis · Gemini · Gotenberg · Docker

• EDI Go service (COPARN / CODECO) · Sole author

  Go microservice that receives and sends shipping-line EDI messages over FTP and email.

  Go · RabbitMQ · PostgreSQL · Jaeger · OpenTelemetry · Docker

• Bank QR payment gateway · Sole developer

  Payment service connecting yard and transport billing to two Thai bank QR payment rails.

  Node.js · Fastify · SCB API · KBank API

• Payment gateway and MVAS · Software developer — payment and MVAS services

  Payment and mobile value-added services that complete against telecom networks, not only an internal checkout screen.

  Go · Node.js · MongoDB · NSQ · SMS · USSD · IVR

• Go workers and NSQ schedulers · Main author — 597 of 657 commits (2022–2023)

  The New MVAS scheduler: a Go + NSQ queue processor that sends subscription content, charges, and warnings across three Thai mobile operators.

  Go · Echo · NSQ · MongoDB

7 pull requests merged into other people's projects, including node-pg-migrate, herdr, ngx-daterangepicker-material, and collie.