Skip to content
pepo.dev
Resume

Thiwanon Chomcharoen PePoDev · Site Reliability Engineer

I keep cloud platforms reliable, observable and cost-efficient.

Site Reliability Engineer in Bangkok with 7+ years of experience, running Kubernetes, Terraform and AWS/GCP infrastructure in production. Currently at ZILO™, previously Opn and Opsta.

Email me View resume Read the changelog

This portfolio is also a desktop.

Windows, a terminal and games, with the same content.

Career uptime

Jun 2019 – Oct 2026 89 months 4 companies

In role Between roles 1 bar = 1 month

Overview

What I do, and what I work with

I design and operate cloud platforms on Kubernetes, Terraform, AWS and Google Cloud. The job, as I see it: keep them dependable, easy to understand, and no more expensive than they need to be.

I started out writing game backends in Go, and I've built games at four Global Game Jams. I still like turning operational lessons into things other engineers enjoy, from small Go CLIs to chaos engineering played as a game.

Core stack

10 areas
  • Kubernetes Docker
  • Terraform Terramate · IaC
  • Grafana Observability
  • PostgreSQL Databases
  • Datadog Monitoring
  • Cloud AWS · GCP
  • Go Python · Java
  • GitOps Argo CD
  • CI/CD Pipelines
  • Chaos Engineering

Certifications

6 earned · 2022–2023

Experience

Changelog · newest first Full resume

ZILO™

to Present

2 yr 9 mo Current

Site Reliability Engineer at ZILO™

  • Managed Cloud infrastructure on AWS with Terraform and Terramate
  • Enhanced Services with graceful shutdown, query optimization, and performance improvements
  • Implemented Chaos engineering with AWS Fault Injection Service (FIS)
  • Built Observability platform with Grafana LGTM stack, OpenTelemetry, and Datadog
+2 more Show fewer at ZILO™
  • Optimized Costs across cloud, Datadog, and Kubernetes resources
  • Deployed and managed Kafka (Strimzi), Camunda Zeebe, Elasticsearch, and HashiCorp Vault

Opn

to

1 yr 7 mo

Infrastructure Engineer at Opn

  • Improved System reliability and availability with Argo Rollouts, Karpenter, Terragrunt, and AWS Graviton
  • Implemented System monitoring with Datadog
  • Established GitOps workflows with Argo CD and GitHub Actions
  • Optimized Costs with Kubecost and AWS Reserved Instances, and by decommissioning underutilized resources
+4 more Show fewer at Opn
  • Secured System access with Teleport
  • Built Data ETL pipelines with AWS Glue and Amazon Athena
  • Contributed to PCI DSS compliance efforts
  • Managed Clusters with Rancher and Portainer

Opsta (Thailand)

to

2 yr 2 mo

DevOps Engineer at Opsta (Thailand)

  • Developed AWS and Google Cloud infrastructure as code with Terraform and Terragrunt
  • Built CI/CD pipelines for building, testing, and deploying applications on Kubernetes
  • Implemented Centralized monitoring and logging with Grafana, Prometheus, and Graylog
  • Developed In-house tools in Go to solve customer problems
+3 more Show fewer at Opsta (Thailand)
  • Created Load testing plans with Locust and JMeter
  • Optimized AWS cloud costs
  • Developed Scalable stateful applications such as Moodle on AWS with automation tools (Packer, Ansible, and Terraform)

Extend Interactive

to

7 mo

Junior Game Developer at Extend Interactive

  • Developed Game backend API in Go
  • Created Monitoring stack with Grafana, Prometheus, and ELK Stack
  • Developed Game patcher system in Unity C#
  • Built Self-service portal for admin operations with Vue.js (voucher creation, player management, ban system)

Projects

2 active · 13 archived

Active

corqty

Generic visual workflow orchestration in Rust and React, starting with multi-tenant accounts, RBAC, and audit logging.

Rust

Source : corqty on GitHub
Archived 13 projects, including four Global Game Jam entries
Archived projects
ProjectWhat it wasStackStars
terraform-kind-clusterTerraform module that spins up a Kubernetes cluster with KIND (Kubernetes in Docker). Published on the Terraform Registry. HCL 9 GitHub stars
super-utilsA containerized utility toolbox for many everyday purposes. HTML
autoauthGo CLI that signs in to internet captive portals automatically. Go 7 GitHub stars
egypt-bubbleBubble puzzle game built with MonoGame. C# 5 GitHub stars
aws-tags-updaterSyncs AWS resource tags from a spreadsheet. Go 2 GitHub stars
Roots-RunawayMultiplayer game: protect the world by destroying the evil tree. GGJ 2023C# 2 GitHub stars
ham-cityCatapult game, final project for a game programming class. C# 1 GitHub stars
game-price-of-growth-ggj-21Story game about growing up and losing something with every step. GGJ 2021C#
little-warriorUnity game: fight to protect your castle. C#
black-white-fighter-ggj-22Multiplayer shooter on Photon PUN. Whatever your colour, just shoot. GGJ 2022C#
cur-cliCloud Usage Reporting: collects AWS and GCP usage and reports it to Slack or Telegram. Go
xlogBuilder-style wrapper for logrus with one-line Elasticsearch integration. Go
dont-touch-my-babyProtect your child from the villains and keep a happy home. GGJ 2019C#

Writing

5 posts · 4 in Thai

Latest posts

All articles
  1. AWS Graviton ทักครับ 👋 ภาพรวมของ AWS Graviton ที่ให้ประสิทธิภาพแรงขึ้นแต่ราคาถูกลง บ้าไปแล้ววววว TH AWSGraviton
  2. ผิดไหมถ้าใจอยากจะใช้ Arch Linux บน WSL วิธีการติดตั้ง Linux distro ใดๆก็ตามที่เราต้องการลงบน WSL TH Arch LinuxWSL
  3. Obsidian กับเรื่อง Multiple-Devices การเซ็ทอัพ Obsidian ให้ใช้งานได้ในหลายๆอุปกรณ์ TH ObsidianProductivity
  4. Do the Fun Chaos Engineering with Gamification! Is Chaos Engineering fun? Nani!! EN Chaos EngineeringKubernetes
  5. AWS Local Zone Bangkok Launch Local zone คืออะไรและเมื่อไหร่ถึงควรใช้กันนะ? TH AWSLocal Zone

Read elsewhere

Topics so far: AWS, Arch Linux, Obsidian and Chaos Engineering.

Contact

Bangkok · UTC+7

Let's build something reliable.

Reach out about infrastructure, SRE, open source, or collaboration.

[email protected]

pepo.dev is also a desktop.

Draggable windows, a terminal, Snake and an SRE game, with this same portfolio inside. Same content, different shape.