Experience & Skills
Work history, banking systems expertise, and technical capabilities.
Banking Production Experience
Sacombank
CURRENTContributed to enabling Sacombank to become the first bank in Vietnam to go-live on Temenos T24 R25 — total upgrade window reduced from 2 weeks (R17/2017) to 3 days (R25/2026) through pipeline automation and continuous process improvement
First Temenos T24 deployment on OpenShift at Sacombank — authored Helm umbrella charts for modular, independent upgrades per component (ENQ, WEB channels) with zero cross-component coupling
Redesigned JBoss domain topology for AML system: split 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 — Git tag triggers QA notification email with one-click approval; master merge creates ITSM change ticket for infra-confirmed production release
Integrated security scanning (SonarQube, Aqua Scanner, Coverity, BlackDuck) and Microsoft Teams workflow automation into all pipeline stages
Managed CI/CD for ~400 source codes across WebSphere, OCP, JBoss; maintained 99% uptime via Grafana, Prometheus, Datadog, Zabbix + Kibana log integration
Accenture
Monitored enterprise infrastructure for 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
DXC Technology Vietnam
Primary DevOps implementer for Allianz Philippines, AIA, PSMBFI on AWS — completed critical platform delivery within 100 days, received formal recognition from Allianz Philippines
Reduced AWS non-production costs by 40% through instance rightsizing, auto-scaling policies, and spot instance adoption across dev, FT, UAT, and staging environments
Provisioned cloud infrastructure with Terraform; automated configuration management with Ansible and Groovy-based Jenkins pipeline scripts for multi-environment deployments
Built artifact management workflows with Nexus and JFrog Artifactory; implemented CI/CD compliance gates for regulated financial services clients
Sacombank DevOps Architecture
Production pipeline supporting Core T24, Open Banking, and Payment systems — from commit to deployment.
Engineering for Financial Systems
Banking DevOps is not regular DevOps. Every deployment touches millions of transactions. Here's how I build for it.
account_tree CI/CD Pipeline Architecture
schema Banking System Architecture
Zero-Downtime Deployments
- › Rolling update strategy on OpenShift OCP
- › Pre-deployment health checks and smoke tests
- › Automated rollback on failure detection
- › 47+ consecutive zero-downtime releases
Database CI/CD
- › Schema version control with automated migrations
- › Flyway/Liquibase integration in pipelines
- › Point-in-time rollback for failed migrations
- › Compliance-grade audit trail for all changes
Security in Pipelines
- › SAST and DAST scanning at every stage
- › Secret detection before code merges
- › Approval gates for production deployments
- › Regulatory compliance checks automated
Hybrid Infrastructure
- › On-premises data centers (primary banking)
- › AWS cloud integration for scalable services
- › Ansible-automated provisioning across both
- › Unified monitoring and alerting layer