Experience

Production engineering across regulated systems.

My work has moved from cloud infrastructure and CI/CD delivery into platform-scale release engineering for banking systems, while keeping security, auditability, and production availability as first-class constraints.

Nov 2024 — Present

Sacombank

DevOps Engineer
Core Banking · Open Banking · Payment Systems

Platform and release engineering for regulated banking systems, with direct involvement in the Temenos T24 R25 production modernization.

  • Contributed to Sacombank's successful Temenos T24 R25 production upgrade through CI/CD automation, OpenShift delivery, Helm architecture, release standardization, and go-live support.
  • Built the T24 R25 Transact umbrella Helm architecture with reusable templates and 18 component/workload charts across Develop, SIT, UAT, Staging, DR, and Production.
  • One of four engineers supporting CI/CD delivery for approximately 400 source repositories across OpenShift microservices, WebSphere, JBoss, and other enterprise application platforms.
  • Designed release-availability patterns using rolling, canary, blue-green, and controlled node-by-node deployment strategies; redesigned JBoss AML server groups and load-balancer flow to reduce deployment disruption.
  • Integrated Coverity, SonarQube, Black Duck, Aqua, OWASP ZAP, Zimperium, Katalon, approval gates, artifact promotion, and release notifications into shared delivery workflows.
  • Participated in the 2026 ISO 27001:2022 internal audit for the DevOps/CI-CD scope, supporting pipeline-control, release-governance, security-process, and audit-evidence reviews.
~400 repositories18 T24 workloads6 environments2 weeks → 3 days upgrade window
Jul 2024 — Oct 2024

Accenture

Monitoring DevOps Engineer
LVMH Louis Vuitton · OVH Cloud

Monitoring operations and incident-routing automation for enterprise infrastructure.

  • Monitored enterprise infrastructure with Datadog and Zabbix.
  • Maintained alert-processing logic that aggregated monitoring events and generated structured tickets for partner response teams.
DatadogZabbixEnterprise operations
Sep 2022 — Jul 2024

DXC Technology Vietnam

DevOps Engineer
Allianz Philippines · AIA · PSMBFI

Cloud infrastructure and CI/CD delivery for regulated insurance and financial-services clients.

  • Delivered end-to-end CI/CD and infrastructure automation using Jenkins, GitLab, Ansible, Terraform, Nexus, and JFrog.
  • Provisioned AWS infrastructure including EC2, S3, RDS, ECS, IAM, API Gateway, and related platform services with Terraform.
  • Reduced AWS non-production cost by 40% through resource rightsizing, auto-scaling policy changes, and spot-instance adoption.
  • Completed a critical Allianz platform delivery within 100 days and received formal recognition for delivery quality and timeliness.
40% AWS non-prod cost reductionTerraform on AWS100-day critical delivery
Release architecture

Availability is a deployment design problem.

I describe the mechanisms themselves rather than using an uptime percentage owned by a much larger system.

Container platforms

Rolling, canary and blue-green rollout patterns with readiness and health validation, controlled traffic transition, and rollback paths.

WebSphere / JBoss

Node-by-node or server-group rollout: drain traffic, deploy a controlled unit, validate health, restore traffic, then continue.

Governance

Branch and tag rules, approval gates, artifact promotion, release notifications, and environment-specific controls from development through production.

Observability

Grafana, Prometheus, Datadog, Zabbix and Kibana used to support release health, capacity visibility, and incident diagnosis.

Deployment flow
Validate
Drain / Route
Deploy unit
Health check
Repeat by pod, node, or server group depending on the target platform and release strategy.
Technical domains

Tools grouped by responsibility.

No arbitrary proficiency percentages — just technologies used in the work described above.

CI/CD & SCM
Jenkins · Groovy Shared Pipeline/Stage · GitLab CI · GitHub Actions · Git · MR governance · GitOps
Platform
Kubernetes · OpenShift · Docker · Helm · Argo CD · OpenTelemetry
Security
Coverity · SonarQube · Black Duck · Aqua · OWASP ZAP · Zimperium
Automation & IaC
Ansible · Terraform · Bash · Python · PowerShell · Groovy
Artifacts
Nexus · JFrog · Maven/NuGet/raw repositories · Docker registry · Helm packages
Enterprise
Temenos T24 R25 · WebSphere · JBoss · WebLogic · IIS · WSO2 · Flyway
Cloud & Observability
AWS · Prometheus · Grafana · Datadog · Zabbix · Kibana
Education

B.Sc. Information Technology

University of Information Technology (UIT), Ho Chi Minh City · 2022

Certification

AWS Partner: Accreditation (Technical)

Amazon Web Services · May 2024