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Hi, I'm Vinh Tran

Tran Trung Vinh

Infra On-Premise & VoIP / DevOps Engineer at Connection Solutions Co., Ltd.

DevOps Engineer with 3 years of experience in system deployment, CI/CD automation, and cloud infrastructure management. Skilled in optimizing processes, enhancing security, and documenting projects to drive team efficiency. Experienced with cloud platforms (Viettel Cloud, Google Cloud, AWS), containerization (Docker, Kubernetes), and automation tools (Jenkins, GitLab).

Problem Solving
Team Collaboration
Technical Documentation

Skills

Kubernetes

Have knowledge of K3s and K8s for container orchestration, deployment, and management of containerized applications, but no practical experience yet.

Docker

Experienced with containerization, building custom Dockerfiles, managing images via Harbor registry, and migrating applications to Docker.

Jenkins

Implemented CI/CD pipelines with Jenkins, integrated with GitLab and SonarQube, reducing deployment time by 30%.

GitLab

Experienced with GitLab for version control, CI/CD integration, and collaborative development workflows.

Prometheus

Set up and configured Prometheus for monitoring infrastructure and applications, integrated with Grafana for visualization.

Grafana

Configured Grafana dashboards for monitoring and visualization of metrics from Prometheus and other data sources.

Bash

Proficient in Bash scripting for automation, system administration, and deployment tasks.

Python

Experienced with Python for automation scripts, system administration, and DevOps tooling.

Google Cloud

Managed server infrastructure on Google Cloud Platform, including compute instances, networking, and storage services.

AWS Cloud

Have knowledge of AWS cloud services for infrastructure deployment and management, but no practical experience yet.

Viettel Cloud

Designed and managed server infrastructure on Viettel Cloud platform using Ubuntu Linux.

VMware vSphere

Managed on-premise VMware vSphere environments for VPS deployment and virtualization.

MySQL

Managed MySQL databases with High Availability (HA) configurations and backup strategies.

MariaDB

Configured MariaDB with High Availability (HA) and managed database operations in production environments.

PostgreSQL

Managed PostgreSQL databases with HA and backup strategies for production systems.

Nginx

Deployed and configured Nginx web servers for high-performance web applications and reverse proxy.

HAProxy

Configured HAProxy for load balancing and high availability of web applications.

Redis

Optimized Redis for caching and improved application performance in production environments.

RabbitMQ

Optimized RabbitMQ for messaging and asynchronous communication between services.

Wazuh

Set up Wazuh for security monitoring and resolved critical CVE vulnerabilities in infrastructure.

Linux

Experienced with Linux system administration on CentOS, Debian, and Ubuntu for production environments.

Technical Documentation

Authored detailed technical documentation for projects to support team knowledge sharing and compliance.

Experiences

1
Connection Solutions Co., Ltd.

May 2025 - Present

Ho Chi Minh City, Vietnam

Connection Solutions Co., Ltd. is a technology company specializing in connection solutions and IT services.

Infra On-Premise & VoIP / DevOps Engineer

May 2025 - Present

Responsibilities:
  • Deploy and operate on-premise infrastructure Vspheres, Linux servers, Fortinet firewall, VPN, VLAN, NAT
  • Manage, optimize and monitor VoIP systems (Asterisk/FreePBX, SIP Trunk, RTP)
  • Debug SIP/RTP using tcpdump, sngrep, sip debug, analyze PCAP
  • Implement security Fortinet Firewall, IP ACL, NAT VIP, prevent SIP brute-force attacks
  • Build monitoring systems (Zabbix, Prometheus, Grafana) for VoIP & servers
  • Support enterprise customers, investigate voice and network issues
  • Build and operate CI/CD (GitLab CI/CD/Jenkins), automate build & deploy
  • Containerize applications (Docker)
  • Deploy and optimize backend services (Nginx, NodeJS, PHP, Python)
  • Monitor cloud & microservices systems via Prometheus, Grafana, Loki
  • Manage databases MySQL/MariaDB, Redis, MongoDB; optimize performance & backup
  • Implement cloud security WAF, rate-limit, Cloudflare
TEPBAC Joint Stock Company

Apr 2024 - Apr 2025

Ho Chi Minh City, Vietnam

TEPBAC Joint Stock Company is a technology company focused on digital solutions and infrastructure management.

DevOps Engineer

Apr 2024 - Apr 2025

Responsibilities:
  • Designed and managed server infrastructure on Viettel Cloud and Google Cloud using Ubuntu Linux
  • Configured MariaDB with High Availability (HA) and migrated domains to Cloudflare for enhanced security
  • Migrated web applications to Docker, built custom Dockerfiles, and managed images via Harbor registry
  • Implemented Jenkins CI/CD pipelines with GitLab and SonarQube, reducing deployment time by 30%
  • Set up Prometheus/Grafana for monitoring and Wazuh for security, resolving critical CVE vulnerabilities
  • Configured HAProxy for load balancing and optimized Redis/RabbitMQ for caching and messaging
  • Automated daily backups to ensure business continuity
  • Authored detailed technical documentation for each project to support team knowledge sharing and compliance
2
3
L.C.S Software Company

Apr 2021 - Mar 2024

Ho Chi Minh City, Vietnam

L.C.S Software Company provides IT solutions and customer support services for enterprise clients.

Customer Service (Level 2)

Apr 2021 - Mar 2024

Responsibilities:
  • Built and managed systems in UAT/Prod environments using CentOS, Debian, and Ubuntu
  • Deployed monitoring tools (Prometheus, Grafana, Elasticsearch) and web servers (Nginx, Tomcat)
  • Managed SQL, MySQL, MariaDB, and PostgreSQL databases with HA and backup strategies
  • Operated Docker containers and managed on-premise VMware vSphere environments for VPS deployment
  • Deployed VoIP CallCenter systems and CRM for clients (e.g., Gene Solution, Pepsi, Masan, OCB)
  • Integrated Asterisk with SIP Trunk and customized dial plans per client needs
  • Documented system configurations and deployment processes post-project for operational reference
Children's Football Center - VietGoal

2022 - Present

Ho Chi Minh City, Vietnam

VietGoal is a children’s football training center focused on developing basic soccer skills and life values.

Football Coach (Part-time)

2022 - Present

Responsibilities:
  • Develop basic soccer skills and thinking strategies for children
  • Provide instructions on correct technique and understanding of soccer rules
  • Teach values and life skills such as positive thinking, confidence, and responsibility
4

Education

FPT JETKING
2018-2020
Network & System Security
Achievement:
Graduated with honors

Projects

CI/CD Pipeline Optimization
DevOps Engineer Apr 2024 - Present

Implemented Jenkins CI/CD pipelines integrated with GitLab and SonarQube, reducing deployment time by 30% and improving code quality through automated testing and code analysis.

professional ci-cd automation jenkins
Cloud Infrastructure Migration
DevOps Engineer Apr 2024 - Present

Designed and managed server infrastructure migration to Viettel Cloud and Google Cloud, implementing High Availability configurations and optimizing resource utilization.

professional cloud infrastructure migration
Containerization & Docker Migration
DevOps Engineer Apr 2024 - Present

Migrated web applications to Docker, built custom Dockerfiles, and established Harbor registry for container image management, improving deployment consistency and scalability.

professional docker containerization devops
Monitoring & Security Infrastructure
DevOps Engineer Apr 2024 - Present

Set up comprehensive monitoring with Prometheus/Grafana and security monitoring with Wazuh, resolving critical CVE vulnerabilities and improving system observability.

professional monitoring security prometheus grafana
Load Balancing & High Availability
DevOps Engineer Apr 2024 - Present

Configured HAProxy for load balancing and optimized Redis/RabbitMQ for caching and messaging, ensuring high availability and performance of production systems.

professional load-balancing ha infrastructure
VoIP CallCenter Systems Deployment
Customer Service (Level 2) Apr 2021 - Mar 2024

Deployed VoIP CallCenter systems and CRM solutions for enterprise clients including Gene Solution, Pepsi, Masan, and OCB, integrating Asterisk with SIP Trunk.

professional voip telecommunications asterisk