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Long Ho
DevOps Engineer — Banking & Financial Systems
longhn0710@gmail.com +84 332 792 848 Ho Chi Minh City, Vietnam linkedin.com/in/longhn0710 github.com/devsecopslonghn drgdevlab.com
Summary

DevOps Engineer with 3+ years of experience in banking and financial systems, specializing in CI/CD pipeline engineering, container-based deployments, and application release automation. Part of a 4-person team at Sacombank managing CI/CD for ~400 source codes across Core Banking, Open Banking, and Payment systems — contributing to the first Temenos T24 R25 go-live in Vietnam. Proven track record delivering in regulated financial environments across Sacombank and DXC Technology.

Experience
DevOps Engineer  ·  Sacombank
Nov 2024 – Present · Ho Chi Minh City
Core Banking · Open Banking · Payment Systems
  • Contributed to enabling Sacombank to become the first bank in Vietnam to go-live on Temenos T24 R25 — through pipeline automation, Helm-based modular deployments, and continuous process improvement (total upgrade window: 2 weeks in R17/2017 → 3 days in R25/2026).
  • Delivered the first Temenos T24 deployment on OpenShift at Sacombank; authored Helm umbrella charts for modular, independent component upgrades (ENQ, WEB channels), enabling isolated rollouts without cross-component coupling.
  • Redesigned JBoss domain topology for the AML system: split single server group into 2 independent server groups with load balancer reconfiguration, eliminating ~10-minute deployment downtime.
  • Architected branch-based CI/CD strategy with ITSM-gated production deployments and Microsoft Teams real-time notifications: develop → DEV; release/x.y → SIT; Git tag → QA email with one-click approval; master → ITSM change ticket → Jenkins → Ansible.
  • Owned CI/CD pipeline onboarding for new projects: structured intake (repo, namespace, language, build version) → standard templates for OCP/WebSphere/JBoss, or researched and built from scratch — e.g. independently implemented full CI/CD and Ansible deployment logic for WSO2 API Manager.
  • One of 4 engineers managing CI/CD for ~400 source codes; implemented Database CI/CD with Flyway and integrated security scanning (SonarQube, Aqua Scanner, Coverity, BlackDuck) for banking regulatory compliance.
  • Drove operational reliability: automated Jenkins workspace cleanup via Grafana disk-usage alerts; advised teams on GitLab binary storage bloat; maintained 99% uptime SLA via Grafana, Prometheus, Kibana.
  • Led GitLab credential exposure incident response: rotated access keys, restored Jenkins/Ansible integrations, identified root cause, and drove team security awareness program.
Monitoring DevOps Engineer  ·  Accenture
Jul 2024 – Oct 2024 · Ho Chi Minh City
Clients: LVMH Louis Vuitton · OVH Cloud
  • Monitored enterprise infrastructure for global clients including LVMH Louis Vuitton and OVH Cloud using Datadog and Zabbix.
  • Built and maintained alert logic pipeline: aggregated incidents from monitoring stack and auto-created structured tickets for partner response teams.
DevOps Engineer  ·  DXC Technology Vietnam
Sep 2022 – Jul 2024 · Ho Chi Minh City
Clients: Allianz Philippines · AIA · PSMBFI
  • Functioned as primary DevOps implementer for enterprise insurance clients on AWS — effectively sole technical executor for end-to-end CI/CD pipeline delivery across Allianz Philippines, AIA, and PSMBFI.
  • Completed critical platform delivery for Allianz Philippines within 100 days, receiving formal recognition for delivery quality and timeliness.
  • Reduced AWS non-production environment costs by 40% through resource monitoring, instance rightsizing, auto-scaling policies, and spot instance adoption across dev, FT, UAT, and staging environments.
  • Provisioned full AWS stack using Terraform: ECS clusters, API Gateway, Cognito (auth), IAM roles/policies, EC2, S3, RDS — end-to-end infrastructure for regulated financial services clients; automated configuration management with Ansible and Groovy-based Jenkins pipeline scripts.
  • Built artifact management workflows with Nexus and JFrog Artifactory; implemented CI/CD compliance gates for regulated financial services clients.
Technical Skills
CI/CD Jenkins, GitLab CI, Groovy Pipeline as Code, Microsoft Teams Workflow Automation, n8n Container & Orchestration OpenShift OCP, Kubernetes, Docker, Helm (Umbrella Charts) Automation & IaC Ansible, Terraform, Bash, Python Cloud (AWS) EC2, S3, RDS, ECS, Auto Scaling, Spot Instances Database CI/CD Flyway, Custom Migration & Backup Scripts Monitoring & Logging Grafana, Prometheus, Datadog, Zabbix, Kibana Security SonarQube, Aqua Scanner, Coverity, BlackDuck Artifact Management Nexus, JFrog Artifactory App Servers WebSphere, JBoss (Domain Mode), Apache Tomcat Banking Systems Temenos T24 (tcompile, ppc64le/QEMU builds), Open Banking, Payment Systems
Education
B.Sc. Information Technology
University of Information Technology (UIT) — Ho Chi Minh City
2022
Certifications
AWS Partner: Accreditation (Technical) — Amazon Web Services, May 2024
Projects
drgdevlab.com — Personal DevOps portfolio site; built with Astro + Tailwind CSS, deployed via CI/CD pipeline
ChatOps Deployment Bot — Personal lab: Telegram bot + n8n workflow automation + GPT for natural-language Jenkins job triggers; enables plain-text deployment commands (e.g. "deploy demo_helm to UAT") routed through n8n → Jenkins API
VPN Automation Client — Personal tool for automated VPN connection management · github.com/devsecopslonghn/vpnclient