Vinhtien Nguyen

Azure Solutions Architect Expert with 10+ years running regulated financial-sector infrastructure. I led a credit union's on-prem to Azure migration and designed and deployed a Kubernetes-based banking platform on AKS using Terraform. I cover architecture, networking, security, DR, and operations.

Network System Analyst at Pacific Service Credit Union (2017-05 – 2025-11)

Azure Cloud Migration – Data Center Modernization Migration of on-prem VMs (VMware/Hyper-V) to Microsoft Azure.

• Assessed workload dependencies and executed a phased migration strategy to minimize downtime.
• Configured Azure VNets, NSGs, storage, and VM sizing for optimal performance.
• Collaborated with security, compliance, and infrastructure teams to ensure success.
• Authored documentation including runbooks, test cases, and validation plans.
• Administered Azure and on-prem data center infrastructure (Cisco, Dell, Hyper-V, VMware) in a high-availability environment.
• Administered and maintained clustered SQL Server instances and SSRS to ensure reliable reporting and data access.
• Designed and maintained disaster recovery protocols for critical data, systems, and applications.
• Performed daily Veeam backups for Azure, Hyper-V, and VMware VMs, SQL databases, and core infrastructure.
• Managed patching, system updates, and endpoint hardening across the enterprise.
• Partnered with security teams to enhance data protection and perimeter defense.
• Mentored junior staff and supported IT leadership initiatives.
• Delivered after-hours and weekend on-call support for critical network and infrastructure issues to maintain uptime.

AI Engineer at Coreledgerpay (2025-11 – Present)

Go, Flutter, PostgreSQL, Azure AKS, Terraform, GitHub Actions Coreledgerpay: white-label neobank platform (pre-launch)

• Architected, built, and deployed a next-generation digital banking platform, integrating AI and mobile technologies to optimize transaction speeds and user security.
• Designed and built a white-label digital banking platform from scratch, licensed to banks and credit unions. It has 11 Go microservices, a Flutter app (iOS, Android, web), and a staff operations console.
• Deployed on Azure (AKS, PostgreSQL, Key Vault, Container Registry) with Terraform and GitHub Actions CI/CD, using autoscaling, health probes, and a repeatable per-client deployment process.
• Built an AI assistant using Azure OpenAI. It answers questions about the customer's account, gives spending insights, and guides money movement.
• Integrated Dwolla (ACH), Increase (wires) and Persona (identity verification) against vendor sandboxes. Built provider interfaces so each client can plug in its own rails.
• Led a three-wave security audit and fixed the findings. These included a transfer-idempotency bug, a concurrent balance-update race and token-revocation gaps.
• Hardened the platform with AES-256-GCM field encryption for sensitive data, TOTP two-factor login for staff and customers, maker-checker approval on balance adjustments, rate limiting, and vulnerability scanning in CI (govulncheck, gosec, Trivy, gitleaks).
• Shipped 490+ commits in about seven weeks using AI-assisted development, with automated unit and integration tests.

Network Administrator at CommonWealth Central Credit Union (2013-12 – 2017)

• Managed routing, switching, and virtual infrastructure environments; resolved performance and connectivity issues.
• Provided technical assistance and resolved vendor-related issues for applications such as ApplicationXtender, ProfitStars, Akcelerant, Patriot, L360, BMC-Trackit, MOVEit Transfer, Tellergy, CardWizard, and FedLine.
• Conducted system backups and applied regular patch updates across core systems.
• Delivered Tier 2/3 support and collaborated on IT policy creation and improvements.
• Coordinated with vendors and consultants to maintain secure and reliable operations.

Desktop Support Specialist at Palo Alto Networks

• Provided IT support to employees and executives, including provisioning, antivirus, patching, and video conferencing systems.
• Maintained hardware and software inventory and delivered after-hours on-call support.

IT Desktop Support at VMware, Inc.

• Delivered user support for hardware, software, network, and remote access issues.
• Onboarded new hires, provisioning ESXi servers, VPNs, phones, and access.
• Supported ongoing IT projects and escalated issues to senior engineers.

Computer Science – California State University, Los Angeles