Experience

What I’m doing right now?

🧑‍💻 DevOps Engineer @ChoTot / July 2022 - Present - 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.