🚀 Senior Backend Engineer with almost 6 years of experience building scalable systems, APIs, and cloud infrastructure.
I enjoy designing solutions, writing clean tested code, and owning projects from start to finish.

Languages & Frameworks
Golang • Java • Node.js • TypeScript/JavaScript • PHP • Python
Spring Boot • NestJS • Express.js • Laravel • Fiber • Gin • React • Vue.js • Angular • Nuxt.js

Databases
PostgreSQL • MySQL • MongoDB • DynamoDB • Redis • Oracle • SQL Server

Cloud & DevOps
AWS • GCP • DigitalOcean
Terraform • AWS CloudFormation • Docker • GitHub Actions • CircleCI • CodeBuild • Kubernetes

Other Skills
CI/CD Pipelines • Unit & Integration Testing (Jest, JUnit, Table Driven Tests) • Fastlane • MQTT • Pub/Sub • Payment Gateway (Omise/OPN, App Store, Play Store)

• Tree Roots Entertainment (2022 – Present)

  • Owned backend for Coin Campaign Game (7App): solution design, technical decisions, performance testing, documentation, and 80% unit-test coverage.
  • Built backend services for SMO Live (Strapi), including PUB/SUB Leaderboard and MQTT Auto End Stream.
  • Integrated payments with OPN and in-app purchase validation for App Store / Play Store.
  • Managed infrastructure with Terraform on AWS & GCP; set up CI/CD with GitHub Actions & CircleCI.

• Thira Venture (2021 – 2022)

  • Modernized sales platform with Golang & Vue/Nuxt.js.
  • Built features: sales management, shipment tracking, campaign progress, partner contracts.
  • Deployed via DigitalOcean (K8s) with improved testing and docs.

• Appman (2020 – 2021)

  • Hardened Docker base images (Node.js, Java, .NET Core).
  • Owned master data & back-office systems for an insurance platform (LoopBack).
  • Built microservices (email, composer), developed chat system (Line OA, Facebook), maintained legacy Java Spring MVC system.
  • Onboarded interns and new joiners.

• Siam Software (2019 – 2020)

  • Built APIs (Java, Node.js), back-office tools (Angular).
  • Delivered systems for government agencies: Energy (EBIS), Culture (M-Funeral), TCEB (E-Office).

• Digital Insider (June 2018 - July 2018)

• Create backend for insert Laos Lottery to Firebase Realtime Database.

• Build two iOS application available on App Store: Watermark, Lao Lottery.

B.Sc. Computer Science – Ubon Ratchathani University (GPA 3.34)

• NESTC 2019 Outstanding Award (Networking, Mobile, IoT) for Senior Project: Door Recognition Security System

• 📧 Email: poramin.lertudom@gmail.com
• 🐙 GitHub: github.com/babyplug
• ✍️ Medium: medium.com/@pond.poramin

• [Node] มาเริ่มต้นเขียน Node.js กันเถอะ
• [Node] ทำระบบสมัครสมาชิก Node.js ด้วย Mongoose และ Bcryptjs
• [Node] ทำระบบล็อกอินด้วย JWT และ Passport
• [Node] ทำระบบอัปโหลดรูปประจำตัวของผู้ใช้ และ static folder
• [Node] สร้าง CRUD MongoDB และการ reference ระหว่าง 2 collections
• [Node] ทำความรู้จักและใช้งาน Mongoose Middleware
• [Node] จัดการ Response เมื่อเกิด error ด้วย Central Error
• [Node] มาเพิ่ม Pagination ให้กับ API ของเรากันดีกว่า
• [Node] มาเขียน Middleware ของตัวเองกันดีกว่า
• [Node] Unit Testing ด้วย Jest