What I’m doing right now?

🖥 Where I’ve Worked 🖥

Summary

DevOps Engineer with nearly 5 years of hands-on experience specializing in cloud infrastructure, Kubernetes orchestration, and CI/CD automation. Demonstrated expertise in implementing cloud-native solutions across AWS and GCP platforms, with a strong focus on infrastructure automation and scalable system design.

🧑‍💻 DevOps Engineer @ChoTot / July 2022 - December 2024 - VietNam

  • Migrating staging from on-premise to on-cloud of GCP included databases, storage engine, observability with cost minimum budget.
  • Responsible for upgrading Kubernetes cluster all environments and running GKE Spot for cost reduction.
  • Managed CI/CD pipelines using GitHub Actions, and contributed an action to the reusable workflow.
  • Experience with server-side technologies such as Nginx, cloud-native like Kong API Gateway.
  • Utilizing Terraform for infrastructure as code on GCP and AWS.
  • Hands-on experience with databases including MySQL, MongoDB, Redis, PostgreSQL, ScyllaDB.
  • Developed and contributed for Helm charts for managing applications.
  • Implementation of ZeroTrust(Cloudflare) architecture to replace VPN for internal infrastructure connectivity, enhancing security posture and access control.
  • Networking experience with TCP/IP, DNS, DHCP, SSH.
  • Experience with monitoring and logging tools Prometheus, Grafana, VictoriaMetrics.
  • Experience SLI/SLO to measure and enhance the reliability, latency, and availability(http/grpc) of applications.
  • Respond to and resolve incidents, troubleshoot system-related problems, and provide timely technical support.
  • Mainly responsible for night support, aiding teams in releasing new features and ensuring smooth operations during off-hours.

Technologies Used: GCP, AWS, GKE, EKS, Helm, Ansible, Terraform, Vault, Cloudflare, Prometheus, Temporal, KafKa, Keda.

🧑‍💻 DevOps Engineer @Spores Network / Oct 2021 - July 2022 - VietNam

  • Managed and deployed applications across Development, Testnet, and Mainnet environments, ensuring stability and performance in all stages.
  • Set up and built CI/CD pipelines using GitHub Actions and CodeCommit.
  • Implemented continuous delivery flows with ArgoCD, promoting efficient and reliable application deployment through GitOps practices.
  • Utilized Terraform to define and manage infrastructure as code on AWS, consistent environment configurations.
  • Hands-on experience with databases such as MySQL, Redis, PostgreSQL and AWS services.
  • Leveraged GraphNode to index data from blockchains including Ethereum, BSC, and Polygon, enhancing data accessibility and integration for decentralized applications.
  • Deployed and maintained monitoring and logging tools such as Prometheus, Grafana, and Loki,
  • Used Jira for tracking tasks and managing project workflows, and Confluence for documentation

Technologies Used: AWS, EKS, CloudFlare, Redis, Postgresql, Loki, Prometheus, Grafana, Istio.

🧑‍💻 System Engineer @FireGroup / May 2020 - Oct 2021 - VietNam

  • Collaborated closely with leadership to start a project from scratch on AWS, effectively migrating from a legacy system to a modern cloud-based environment.
  • Designed and implemented CI/CD pipelines using Jenkins, GitHub Actions, and GitLab CI.
  • Created and maintained Helm Charts for GitOps deployment on EKS(Kubernetes) using FluxCD that reduce time to provisioned new environment or update image version.
  • Utilizing Terraform for infrastructure as code on AWS (Staging, UAT, Production).
  • Hands-on experience with a range of databases (MySQL, MongoDB, Redis, PostgreSQL) and AWS services.
  • Experience with server-side technologies such as Nginx, cloud-native like Nginx Ingress, Kong Ingress.
  • Implemented cloud monitoring and logging solutions using the EFK stack, Prometheus & Grafana, and AWS CloudWatch.
  • Created and validated automated backup scripts in Python and Shell.
  • Utilized Jira for task tracking and Confluence for documentation, supporting transparent and effective project management in an Agile environment.

Technologies Used: Jenkins, Github Action, GitLab CI, Helm, AWS (EC2, VPC, MSK, Route53, S3, EKS), Nginx, Kong Ingress.