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TRẦN TUẤN KIỆT
System / DevOps Engineer
Ho Chi Minh City, Vietnam · +84 XXX XXX XXX · kiettran.cv@gmail.com
GitHub: github.com/kyettran · LinkedIn: linkedin.com/in/trankiet317
Summary

Linux System Engineer with hands-on experience operating and troubleshooting production infrastructure in Linux environments. Experienced in server administration, system and network troubleshooting, storage, monitoring, service operations, backup, and infrastructure automation. Currently expanding into Docker, Kubernetes, CI/CD, Ansible, and observability with a focus on building reliable, automated, and maintainable infrastructure.

Experience
HANBIRO — Linux System Engineer Ho Chi Minh City, Vietnam
2025 – Present
  • Operate and troubleshoot production Linux infrastructure, investigating CPU, memory, disk I/O, filesystem, networking, service, and application issues using system-level diagnostics, logs, and performance monitoring tools.
  • Administer and maintain Linux servers running critical services including Nginx, Apache, MySQL, Elasticsearch, mail infrastructure, NFS, backup systems, and supporting system services.
  • Troubleshoot production incidents across the infrastructure stack, correlating system metrics, kernel messages, service logs, network connectivity, storage behavior, and application symptoms to identify root causes.
  • Participate in Linux server migration and maintenance activities across CentOS and Rocky Linux environments, including filesystem, storage, NFS, service configuration, user/group management, and system compatibility troubleshooting.
  • Work with on-premise server infrastructure including RAID, disks, network interfaces, storage, backup systems, and hardware-level diagnostics.
  • Develop and maintain Bash scripts and scheduled jobs to automate recurring operational tasks, system checks, backups, and infrastructure maintenance.
  • Monitor and investigate system health and performance using tools such as sar, vmstat, dmesg, top, iostat, ss, tcpdump, and service/application logs.
  • Collaborate with senior engineers and other teams during infrastructure incidents, maintenance, troubleshooting, and operational improvements.
Selected Projects
On-Premise DevOps & Kubernetes Lab
Linux · Docker · Kubernetes · Git · CI/CD · Ansible · Prometheus · Grafana
  • Designed and deployed a multi-node Linux infrastructure lab to simulate a production-oriented application environment.
  • Containerized applications with Docker and deployed workloads to Kubernetes using Deployments, Services, ConfigMaps, Secrets, Ingress, health probes, resource limits, and persistent storage.
  • Built a Git-based CI/CD workflow to automate application testing, container image builds, registry publishing, and deployment across development and staging environments.
  • Automated Linux provisioning and application configuration with Ansible and Bash, applying repeatable and idempotent infrastructure configuration.
  • Implemented Prometheus and Grafana monitoring for infrastructure and application metrics, covering CPU, memory, disk, network, containers, Kubernetes workloads, and service availability.
Infrastructure & Application Lab
VMware · Linux · HAProxy · Nginx · MySQL · Elasticsearch · Networking
  • Built a virtualized multi-server environment using VMware to practice Linux administration, networking, load balancing, application deployment, monitoring, and service troubleshooting.
  • Configured HAProxy/Nginx-based traffic distribution and reverse proxying for application services.
  • Operated Linux-based application, database, and search components while investigating performance, connectivity, service availability, and resource bottlenecks.
  • Practiced infrastructure failure scenarios, service recovery, backup/restore procedures, and system troubleshooting using production-oriented operational workflows.
Education
HO CHI MINH CITY OPEN UNIVERSITY Ho Chi Minh City, Vietnam
Bachelor of Information Technology | GPA: 8.05 / 10.0
Technical Skills
Operating Systems:
Linux (Rocky Linux, CentOS, Ubuntu), Windows Server fundamentals
Containers & Orchestration:
Docker, Docker Compose, Kubernetes
Automation:
Bash, Ansible, Python fundamentals, cron
CI/CD & Version Control:
Git, GitLab CI/CD fundamentals
Monitoring & Logging:
Prometheus, Grafana, Elasticsearch, Kibana, Linux system monitoring
Networking:
TCP/IP, DNS, HTTP/HTTPS, SSH, VLAN fundamentals, routing, NAT, firewall, Nginx, HAProxy
Infrastructure:
VMware, RAID, NFS, storage, backup, server hardware
Databases & Services:
MySQL, Elasticsearch, Apache, Nginx, mail infrastructure
Development:
Next.js, Node.js, REST APIs, Dockerized application deployment
Troubleshooting:
Linux performance, systemd, kernel/log analysis, disk/filesystem, network, service and application troubleshooting
Languages
Vietnamese:
Native
English:
Technical documentation and reading; actively improving professional English / TOEIC