Resume
Thiwanon Chomcharoen (PePo)
Site Reliability Engineer
Site Reliability Engineer specializing in cloud infrastructure, Kubernetes platforms, observability, infrastructure as code, GitOps delivery, and reliability practices for production systems.
Experience
Site Reliability Engineer
February 2024 - Present
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
- Optimized costs across cloud, Datadog, and Kubernetes resources
- Deployed and managed Kafka (Strimzi), Camunda Zeebe, Elasticsearch, and HashiCorp Vault
Infrastructure Engineer
July 2022 - January 2024
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
- 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
DevOps Engineer
May 2020 - June 2022
Opsta (Thailand) Co.,Ltd.
- 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
- 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)
Junior Game Developer
June 2019 - December 2019
Extend Interactive Co., Ltd.
- 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)
Technical Skills
- 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
Education
Bachelor of Science, Computer Science
2016 - 2020
King Mongkut's Institute of Technology Ladkrabang