Open to opportunities

Tuấn Anh User

@tunanhuser

DevOps engineer automating secure, cloud-native infrastructure and CI/CD to deliver reliable, zero-downtime deployments.

Vietnam

Message

What I'm looking for

I want a DevOps role where I can design secure, automated cloud-native infrastructure, strengthen CI/CD with reliable release strategies, and own observability and migration work to improve scalability, stability, and deployment consistency.

I’m a DevOps Engineer with 5 years of experience designing and operating scalable, cloud-native systems. I bridge development and operations through automation, collaboration, and standardized delivery processes, with a strong focus on security best practices.

In my recent work, I automate infrastructure provisioning using Terraform modules and integrate CI/CD for multi-environment delivery. I collaborate with architects and development teams to design and implement secure cloud architectures on AWS, while enforcing least-privilege access through IAM policies and roles.

I build and maintain robust deployment pipelines and release strategies, including blue/green and canary approaches, aiming for zero-downtime releases and fewer deployment failures. I also implement observability and troubleshooting capabilities using Prometheus, Grafana, Zabbix, and the ELK stack, plus tracing/telemetry with OpenTelemetry.

Across migrations and platform projects, I’ve led moves from on-premise infrastructure to AWS—re-architecting into Kubernetes-based microservices and deploying EKS/EC2 and RDS. I’ve also supported governance and standardization at scale with multi-account AWS design, AWS Organizations + Service Control Policies (SCPs), and a Golden AMI pipeline using Packer.

Experience

Work history, roles, and key accomplishments

Current

DevOps Engineer

Current

VMO

Feb 2024 - Present (2 years 5 months)

Automates infrastructure provisioning with Terraform and supports CI/CD integrations. Designs secure AWS cloud architectures and implements Kubernetes-based deployment, security, monitoring, and release automation.

Terraform AWS CI CD Gitlab CI Azure DevOps GitHub Actions ArgoCD Kubernetes Docker IAM Secrets Management Prometheus Grafana Zabbix ELK Splunk Loki OpenTelemetry AWS Lambda Automation TCP IP DNS Load Balancing

DevOps Engineer

BTSE

Jan 2025 - Jul 2025 (6 months)

Designed a multi-account AWS platform with standardized CI/CD and infrastructure as code, including a hardened Golden AMI pipeline. Implemented governance controls using AWS Organizations and SCPs and built reusable Terraform modules for shared infrastructure provisioning.

AWS Organizations IAM EC2 VPC Cloudwatch Terraform Packer CI CD AMI Security Controls

Infrastructure Engineer

PTVN

Jul 2024 - Oct 2024 (3 months)

Led migration of legacy on-premise systems to AWS by re-architecting applications into a cloud-native environment. Migrated applications and databases to AWS, designed secure VPC architecture, and implemented Terraform provisioning with a planned zero-downtime cutover strategy.

AWS Migration Terraform Kubernetes EC2 RDS VPC NAT ALB Provisioning

DevOps Engineer

FPT Cloud

Jan 2023 - Jan 2024 (1 year)

Deployed and maintained API and messaging/streaming infrastructure, including CI/CD automation for build and deployment workflows. Provisioned AWS infrastructure with Terraform and implemented monitoring and logging pipelines to support reliability testing and issue troubleshooting.

Kong API Gateway RabbitMQ Kafka Flask Gitlab CI Devtron ArgoCD Terraform AWS Fluent Bit ELK Stack Performance Testing Java CI CD

DevOps Engineer

DBIZ

Dec 2021 - Nov 2022 (11 months)

Built CI/CD pipelines using GitLab CI and ArgoCD and supported microservices in PHP and Node.js frameworks. Managed monitoring, logging, container orchestration, service mesh, deployment strategies, Helm releases, and security monitoring tools for production operations.

Gitlab CI ArgoCD CI CD PHP Node Laravel Strapi Python BASH Zabbix Prometheus Grafana AlertManager ELK Stack ElastAlert Docker Kubernetes Linkerd Helm Suricata Wazuh

DevOps Engineer

EcoIT

Oct 2020 - Nov 2021 (1 year 1 month)

Designed and managed secure AWS infrastructure and led migration from monolithic systems to Kubernetes-based microservices. Containerized applications with Docker, standardized Helm-based releases, and implemented monitoring with Prometheus and Grafana.

AWS Kubernetes Microservices Docker Helm Prometheus Grafana