Hello, I'm

Luc Si Than.

I automate everything.

I'm a DevOps Engineer with 1+ year of hands-on experience building and operating production-grade infrastructure across on-premise and cloud environments. I specialize in architecting Kubernetes clusters, implementing end-to-end CI/CD pipelines with security scanning, and deploying full observability stacks.

My proven track record includes serving 2,000+ users across 10+ servers with 99.9% uptime. I believe that infrastructure should be code — versioned, tested, and deployed like any other software.

Passionate about automation, DevSecOps practices, and building reliable systems from the ground up — improving observability, reducing mean time to recovery, and making deployments something the team looks forward to rather than fears.

01.About Me
Hi, I'm Than — a DevOps Engineer based in Ho Chi Minh City who got seriously hooked on infrastructure and automation. It started as curiosity, and honestly, it still feels that way every time I spin up a new cluster or debug a pipeline at midnight.
What I'm most proud of isn't any single tool — it's how fast I pick things up. In under a year, I went from learning the basics to building production CI/CD pipelines with Jenkins and GitLab CI, managing Kubernetes clusters, setting up full observability stacks, and wiring secrets management with HashiCorp Vault — all in real environments, not just sandboxes.
A lot of that learning happened through my personal project, Raon Anvernos Platform — a self-hosted microservices setup I built from scratch to experiment freely. It's where I break things on purpose, figure out why, and come back with a better solution. That mindset is something I bring to every team I work with.
Alongside work, I'm finishing my Bachelor's in Software Engineering (GPA: 3.42/4.00) and just started a Master's in IT (GPA: 3.65/4.00) at University of Nguyen Tat Thanh. I'm also working on a research project: AI Agent for Automated Data Analysis using RAG — because once you automate infrastructure, automating everything else just makes sense.
Here's what I'm working with these days:
Docker / Kubernetes
GitLab CI/CD / Jenkins
Terraform / Ansible
Prometheus / Grafana / ELK
Linux / Nginx
GitHub Actions
AWS / GCP / Azure
HashiCorp Vault / Teleport
I learn fast, I build with intention, and I'm always looking for the next thing to figure out.
T
02.
Where I've Worked
DevOps Engineer Fresher @ 365 Ecosystem Joint Stock CompanyDec 2025 - Mar 2026
Deployed Java Spring Boot and Vue.js applications on Linux servers, configuring Nginx as a reverse proxy and MariaDB as the production database.
Set up a self-hosted GitLab Server and established GitFlow workflow with structured merge request reviews across the development team.
Built GitLab CI/CD pipelines automating build and deployment to Dev and Staging environments using Maven, Docker, and Harbor registry.
Configured Jenkins agent-based pipelines with automated deployment to Staging and manual approval gates for controlled production releases.
Developed a parameterized Jenkins pipeline with automated backup and one-click rollback capabilities to ensure deployment safety.
Implemented Zabbix monitoring system with custom triggers and multi-server alerting to maintain infrastructure visibility and uptime.
03. Some Things I've Built
Project Screen shot
CI/CD PipelineAutomated CI/CD on Google Cloud Platform

Deployed a Flask application to GCP using Pulumi for infrastructure provisioning. Built GitHub Actions pipeline automating build and deployment with Ansible for configuration management.

    GitHub ActionsGCPAnsiblePulumiPython
Project Screen shot
CI/CD PipelineJenkins CI/CD with Manual Approval & Rollback

Configured agent-based Jenkins pipelines for Staging environment with manual approval gates. Developed parameterized pipeline supporting automated backup and one-click rollback capabilities.

    JenkinsCI/CDDockerMavenGitLab
Project Screen shot
MonitoringInfrastructure Monitoring with Zabbix

Implemented Zabbix monitoring across multiple production servers with custom triggers and real-time alerting. Enabled proactive incident detection before issues impact end users.

    ZabbixMonitoringAlertingLinuxNginx
Project Screen shot
Access ManagementCentralized Server Access with Teleport

Implemented zero-trust access model using Teleport with RBAC, full audit logs, session recording, and MFA-ready authentication across all on-premise servers.

    TeleportSecurityRBACZero-trustLinux
Project Screen shot
Kubernetes OrchestrationSelf-hosted Kubernetes Cluster with Rancher

Built on-premise Kubernetes cluster using kubeadm and managed via Rancher. Deployed 12+ microservices with Deployment, ConfigMap, Secret, Ingress, and NGINX Ingress Controller.

    KubernetesRancherDockerHelmMicroservices
Project Screen shot
ObservabilityFull Observability Stack — Prometheus + Grafana + ELK

Deployed end-to-end observability with Prometheus scraping metrics, Grafana for visualization, and ELK Stack for centralized log aggregation across all services and infrastructure.

    GrafanaPrometheusELKKibanaObservability
04.
Projects

Designed and deployed a microservices platform with 12+ services on self-hosted Linux servers. Built multi-stage Docker images with 60% size optimization, orchestrated with Kubernetes. Developed GitHub Actions CI/CD pipeline with intelligent change detection, reducing deployment time by 70%.

Multi-stage Docker images with 60% size optimization
GitHub Actions CI/CD with intelligent change detection — 70% faster deployments
Automated infrastructure provisioning with Terraform and Ansible
Managed Ubuntu production servers with Nginx reverse proxy, SSL/TLS and load balancing
Deployed Prometheus + Grafana monitoring and ELK Stack for centralized logging
DockerKubernetesTerraformAnsibleGitHub ActionsNginxPrometheusGrafanaELK
05.
Skills
CI/CD & Build Automation
Jenkins (3)
GitHub Actions (4)
GitLab CI (4)
GitOps (2)
Containerization & Orchestration
Docker (4)
Docker Compose (4)
Kubernetes (3)
Helm (2)
Cloud & Infrastructure
AWS (EC2, S3) (3)
GCP (3)
Azure (2)
Terraform (2)
Ansible (2)
Linux (Ubuntu) (4)
Monitoring & Observability
Grafana (3)
Prometheus (2)
ELK Stack (2)
Zabbix (1)
Web Servers & Networking
Nginx (3)
Apache (2)
DNS (2)
Firewall (2)
SSL/TLS (2)
Load Balancing (2)
Programming & Scripting
Java (4)
Python (3)
Bash/Shell (2)
Security & Access
HashiCorp Vault (3)
Teleport (1)
Kong API Gateway (1)
Storage & HA
GlusterFS (3)
NFS (3)
Keepalived (2)
Harbor Registry (2)
DevSecOps & Testing
Trivy (3)
SonarQube (3)
OWASP ZAP (2)
Snyk (2)
CodeClimate (2)
Arachni (1)
K6 (2)
06.What's Next?
Get In Touch

Although I'm Always open for any new opportunities, my inbox is open. Whether you have a question or just want to say hi, I'll try my best to get back to you!