Dao Van Dat

About Me

A bit about who I am and what I do.

DevOps Engineer · Hanoi, Vietnam

DevOps engineer with 2+ years delivering secure, cost-efficient cloud and Kubernetes platforms through Infrastructure as Code, GitOps, and automated CI/CD. Hands-on with AWS, Terraform, Kubernetes, ArgoCD, Jenkins/GitLab CI, and security tooling including Keycloak, Palo Alto NGFW, Wazuh, and HSM.

2+Years in DevOps

60%Infrastructure cost reduction

99.9%System uptime maintained

FPT University — Danang, Vietnam

Bachelor's in Software Engineering · GPA 3.0 · 2025

Good Student Award — Summer 2025

Good Student Award — Fall 2023

Certifications

AWS Certified Solutions Architect – Associate
Terraform Associate (HashiCorp Certified)
AWS Machine Learning Foundations
Advanced Golang
Software Development Lifecycle

Tech Stack

(hint: press a key)

Experience

My professional journey.

DevOps Engineer

AirSoft

Dec 2025 - Present

Built GitOps delivery pipelines with ArgoCD, Jenkins, and GitLab CI to streamline CI/CD and environment promotion across multiple deployment stages.
Integrated Keycloak and CloudFlare Zero Trust VPN to secure internal infrastructure SSO and external partner connections.
Deployed secure Kubernetes clusters with multi-layer defenses using Palo Alto VM-300 NGFW and TLS 1.3, supporting secure production operations and compliance requirements.
Integrated PostgreSQL HA with Wazuh SIEM for continuous compliance monitoring; managed cryptographic keys using HSM FIPS 140-2 Level 3.
Built a config-driven API orchestration platform utilising Camunda 8/Zeebe for workflow-driven routing and operational efficiency.

Kubernetes

Docker

GitLab CI

Jenkins

ArgoCD

PostgreSQL

Linux

Helm

DevOps Engineer

Pasona

May 2024 - Dec 2025

Operated a multi-environment serverless architecture (AWS SAM, CloudFormation, Step Functions) for a customer data platform, reducing infrastructure costs by 60% vs EC2-based deployments.
Built CI/CD pipelines with GitLab CI and OIDC integration, incorporating automated security scanning (Checkov, CloudFormation Guard) validating 100% of infrastructure changes before deployment.
Designed modular IaC templates supporting dev/staging/production environments with automated resource provisioning and configuration management.
Implemented monitoring stack (CloudWatch, SNS) covering Lambda performance and error rates, maintaining 99.9% system uptime across multi-environment deployments.
Operated on-premise infrastructure with DC/DR strategy, Docker/Portainer containerisation, and extended observability with Prometheus, Grafana, and Loki.

AWS

Terraform

Docker

GitLab CI

Prometheus

Grafana

Linux

PostgreSQL

Software Engineering Intern

FPT Software

Jan 2024 - Apr 2024

Developed and maintained backend services (Spring Boot) and frontend components (React) for a warehouse management and 3D design system.
Delivered new features as part of a 6-member cross-functional team, shipping production-ready code within sprint deadlines.
Authored low-level design documents and development guidelines to ensure maintainability and team alignment.
Improved code reliability through unit and integration testing with JUnit.

React