💫 About Kawin Vir.

https://avatars.githubusercontent.com/u/1217739

Professional Experience

Veteran Backend Engineer with 10+ years of progressive experience in designing, leading, and scaling complex backend systems. Focus on Go, Kubernetes, and cloud-native architectures, specializing in distributed systems, high-availability infrastructure (Ceph/ProxmoxVE), and Linux environments. Proven ability to drive technical strategy, foster remote-first collaboration, and implement DevOps best practices, delivering significant business impact across Fintech, SaaS, and infrastructure domains. Open to remote opportunities from Khon Kaen and hybrids in Bangkok.

Personal Characteristics

  • 🌐 Remote Work Enthusiast: I thrive in remote working environments.
  • 🧑‍💻 Backend Developer and Systems Administrator: Specialized in Go/JS programming.
  • 🎮 Gaming Enthusiast: I enjoy playing video games.
  • 🏡 Anime Aficionado: I have a keen interest in watching Japanese anime.

🌐 Socials:

https://img.shields.io/badge/LinkedIn-%230077B5.svg?logo=linkedin&logoColor=white https://img.shields.io/badge/Twitter-%231DA1F2.svg?logo=Twitter&logoColor=white

💻 Tech Stack:

https://img.shields.io/badge/go-%2300ADD8.svg?style=for-the-badge&logo=go&logoColor=white https://img.shields.io/badge/rust-%23000000.svg?style=for-the-badge&logo=rust&logoColor=white https://img.shields.io/badge/shell_script-%23121011.svg?style=for-the-badge&logo=gnu-bash&logoColor=white https://img.shields.io/badge/typescript-%23007ACC.svg?style=for-the-badge&logo=typescript&logoColor=white https://img.shields.io/badge/Cloudflare-F38020?style=for-the-badge&logo=Cloudflare&logoColor=white https://img.shields.io/badge/JWT-black?style=for-the-badge&logo=JSON%20web%20tokens https://img.shields.io/badge/nginx-%23009639.svg?style=for-the-badge&logo=nginx&logoColor=white https://img.shields.io/badge/MariaDB-003545?style=for-the-badge&logo=mariadb&logoColor=white https://img.shields.io/badge/redis-%23DD0031.svg?style=for-the-badge&logo=redis&logoColor=white https://img.shields.io/badge/Supabase-3ECF8E?style=for-the-badge&logo=supabase&logoColor=white https://img.shields.io/badge/sqlite-%2307405e.svg?style=for-the-badge&logo=sqlite&logoColor=white https://img.shields.io/badge/MongoDB-%234ea94b.svg?style=for-the-badge&logo=mongodb&logoColor=white https://img.shields.io/badge/Linux-FCC624?style=for-the-badge&logo=linux&logoColor=black https://img.shields.io/badge/docker-%230db7ed.svg?style=for-the-badge&logo=docker&logoColor=white https://img.shields.io/badge/rancher-%230075A8.svg?style=for-the-badge&logo=rancher&logoColor=white


Professional Experience

LINE Pay (Thailand)

Senior Software Engineer

Jun 2025 - present

  • Build reliable, scalable systems.
  • Work with cross-functional teams to deliver user-friendly and efficient tools.
  • Use modern tech stacks to support growing services.

Extend IT Resource Co., Ltd.

Assistant Manager (Backend Lead)

2024 - May 2025

  • Led and mentored Go/JavaScript backend teams in end-to-end design, development, and deployment of highly scalable, high-performance distributed systems.
  • Drove adoption of advanced development best practices , resulting in an increase in team velocity and reduction in critical production bugs.
  • Architected and implemented robust, cloud-native infrastructure solutions, enhancing system stability and scalability to support large amounts of transactions.

Tomato Ideas Co., Ltd.

Technical Lead

May 2023 - September 2023

  • Designed and implemented comprehensive application monitoring systems, to improve system uptime and customer experience.
  • Led root cause analysis and implemented strategic, long-term solutions for critical production issues.
  • Optimized Kubernetes (K8s) and K3S cluster configurations, significantly improving storage reliability and reducing network latency.

Canghan Coffee

Co-Founder, Coffee Roaster

November 2019

  • Develop coffee and beverage recipes.
  • Roast coffee beans.

COOP NIX Co., Ltd.

Senior System Engineer

January 2016

  • Architected and led implementation of a highly available and fault-tolerant Hyper-converged Infrastructure (HCI) system using ProxmoxVE and Ceph, achieving reliable uptime.
  • Managed and optimized private server environments supporting clients, ensuring high availability and performance.
  • Developed and deployed Infrastructure as a Service (IaaS) web management solutions using ProxmoxVE API, Go, and JavaScript.

Provincial Waterworks Authority

Computer Engineer

February 2014 - July 2020

  • Managed and maintained critical computer and server infrastructure across 22 branches, ensuring operational continuity for hundreds of users.
  • Designed and implemented a robust network environment, improving connectivity and reducing downtime.
  • Led strategic migration of Windows Server systems to Linux, achieving significant annual licensing cost savings.

Zercle Technology Co., Ltd.

Technical Consultant

2024 - Present

  • Technical consultant

Technical Co-Founder

January 2012 - 2024

  • Established and championed foundational development best practices and agile workflows, accelerating initial team productivity.
  • Led the initial Go/JavaScript backend team in architectural design and development of core scalable systems, supporting rapid user growth.
  • Defined and implemented initial cloud-native infrastructure solutions, ensuring system stability and scalability during startup phase.