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DevOps & Cloud Infrastructure · Team Lead

Loc Nguyen

Azure · Kubernetes (AKS) · Terraform · CI/CD
● Open to new opportunities Royse City, TX

Azure-focused DevOps and cloud infrastructure professional with 15+ years supporting enterprise platforms. I specialize in Azure IaaS/PaaS, Kubernetes (AKS), Docker, Infrastructure as Code with Terraform, and CI/CD automation with Azure DevOps YAML pipelines and Git-based workflows. My work improves reliability, security posture, and deployment speed through standardization, automation, and close collaboration with developers, InfoSec, and change/release teams.

Email Loc1999@hotmail.com
Phone (972) 697-1815
Education B.A. Computer Science, UNT 
role:          sysadmin-iii / team-lead
cloud:         azure (primary), aws
iac:           terraform, bicep/arm
orchestration: aks, docker
pipelines:     azure devops yaml
status:        ● Active
15+years in enterprise IT
100+IIS servers operated
80+production websites
4engineers led
3data centers run

Experience

7 roles · 2008 – present
  1. Oct 2020present

    System Administrator III / Team Lead (DevOps & Cloud Operations)

    Current
    AmerisourceBergen · Frisco, TX
    • Lead a 4-person operations team supporting enterprise web and application platforms; partner with developers, InfoSec, and release management to deliver reliable deployments.
    • Build and maintain Azure DevOps Pipelines (YAML) for CI/CD, including multi-stage deployments, variable groups, approvals, and service connections; standardize pipeline patterns across teams.
    • Integrate Terraform with CI/CD to provision and update Azure infrastructure for AKS workloads (networking, NSGs, Application Gateway/WAF, Key Vault, VMs, and databases).
    • Deploy and operate Kubernetes clusters (AKS), including node pools and cluster upgrades; support containerized releases and troubleshoot runtime and networking issues.
    • Operate 100+ IIS servers supporting 80+ sites; improve uptime through proactive monitoring, performance tuning, and automated recovery procedures.
    • Coach and upskill engineers through hands-on training, runbooks, and standard operating procedures; interview candidates and onboard new team members.
    Show 13 more responsibilities
    • Administer Windows Server 2012 R2–2025 across on-prem and Azure environments; standardize builds, patching, and hardening.
    • Troubleshoot production issues end-to-end (app, OS, network, certificates, database) and reduce MTTR.
    • Drive cost and performance optimization in Azure by right-sizing resources and recommending platform improvements.
    • Provision and manage Azure IaaS/PaaS/SaaS services including VNets/subnets, storage, Key Vault, SQL, and PostgreSQL with backup automation.
    • Implement Azure Application Gateway and Web Application Firewall (WAF) policies to protect internet-facing workloads.
    • Manage Linux servers in Azure; automate routine administration tasks and ensure secure configuration baselines.
    • Build and support Docker-based deployments; partner with developers to standardize runtime configuration and environment parity.
    • Configure IIS farms and NetScaler load balancing; automate certificate renewals and standardize site configuration across environments.
    • Execute vulnerability scanning (Nessus, Qualys, Burp Suite) and drive remediation with InfoSec; validate fixes and reduce repeat findings.
    • Manage Azure Firewall and hub-and-spoke networking; troubleshoot routing, DNS, and connectivity issues across environments.
    • Implement CI/CD using Git-based workflows with Jenkins and Octopus Deploy to automate builds, deployments, and rollback-ready releases.
    • Migrated servers between data centers; document all servers and websites and maintain disaster-recovery procedures.
    • Work closely with the Change and Release Management team to deploy new code.
  2. Jun 2019Jun 2020

    Senior System Administrator

    Solomon Associates · Dallas, TX
    • Responsible for company IT infrastructure operations and availability across the Dallas, Houston, and Calgary data centers, synchronized over MPLS.
    • Led and completed a network micro-segmentation project and an email migration from on-premises Exchange to Office 365.
    • Managed Cisco switches, routers, wireless access points, FirePower firewall and VPN; PBX VoIP phone system; Dell servers and storage.
    Show 8 more
    • Set up a VPN tunnel between the Dallas data center and AWS; assisted with AWS issues.
    • Managed SolarWinds, DUO, IIS, SQL Server, Exchange, Office 365, Active Directory, DNS, Cisco Umbrella, VMware, Hyper-V, Dell Boomi, Microsoft NAV, and Dell Quest enterprise backup.
    • Set up trusts between domains; Group Policy management; AD user accounts and mailboxes.
    • SQL administration: backup/restore, maintenance, permissions, and troubleshooting stored procedures and triggers.
    • Managed software and hardware licenses, support contracts, and enterprise certificates.
    • Performed security audits and remediation; troubleshot ASP.NET and MVC applications.
    • Planned 2021 IT projects: site failover between data centers, online backup, SQL Server upgrades, and application/server consolidation.
    • CI/CD deployment using Git; server patching with WSUS; support and training for help desk staff.
  3. Oct 2013Jun 2019

    System Administrator III / Team Lead

    AmerisourceBergen · Frisco, TX
    • Led a team of 4 supporting enterprise applications at AmerisourceBergen / Lash Group; provided technical training and coaching.
    • Managed 100+ IIS servers and supported 80+ websites, working with developers and other teams to maximize uptime.
    • Set up new websites on IIS farms and configured site load balancing on NetScaler.
    Show 5 more
    • Troubleshot NetScaler, network, AD, DNS, certificate, database, site performance, ASP.NET/MVC, and C++/C#/VB.NET code-behind errors.
    • Analyzed and remediated OS and website security issues.
    • Recommended solutions to minimize cost while improving server and site performance.
    • Migrated servers between data centers; documented all servers and websites and created disaster-recovery procedures.
    • Interviewed candidates; worked with Change and Release Management to deploy new code.
  4. Aug 2012Aug 2013

    IT Manager

    Signazon.com · Dallas, TX
    • Reviewed the existing IT architecture and recommended changes; purchased appropriate hardware and software.
    • Converted physical servers to Hyper-V virtual machines and set up an iSCSI SAN.
    • Upgraded domain controllers to 2012 R2, Exchange 2010 to 2013 with a DAG for high availability, and SQL Server 2005 to 2008.
    Show 4 more
    • Upgraded the Cisco ASA firewall and reconfigured NAT, policies, VPN, and routing.
    • Configured link load balancing across two internet providers, Barracuda spam filtering, and StorageCraft VM backup.
    • Active Directory administration: users, GPOs, domain trusts, DNS, DHCP, IPAM, and DFS permissions.
    • Configured the VoIP server; performed security audit scans and SCCM patching.
  5. Jul 2011Jun 2012

    System Administrator Supervisor

    Insurance Information Exchange · Bryan, TX
    • Managed the System Engineer team: project assignments, resourcing, technical guidance, and annual reviews.
    • Administered VMware ESXi/vSphere and Windows Server 2008 R2/2003.
    • Managed HP servers (DL 360/380/580), HP SAN, Cisco fabric switches, Cisco ASA, Juniper routers, and F5 BIG-IP.
    Show 4 more
    • Managed SFTP, VPN, DNS, TCP/IP, DHCP, AD, IPSec, Tomcat, and IIS servers.
    • Analyzed packet captures with customers and vendors to resolve connectivity issues.
    • Owned disaster recovery, backup and restore (Commvault, vRanger), and VM replication.
    • Monitored infrastructure with WhatsUp Gold, SolarWinds, and Splunk.
  6. Jul 2010Jul 2011

    Senior Network Administrator

    Port Logistics Group · Houston, TX
    • Managed IBM Power 7, HMC, LPAR, iTera HA, EDI, and NetIQ.
    • Resolved complex TCP/IP, DNS, DHCP, GPO, and VPN issues; monitored network performance with SolarWinds Orion.
    • Recommended hardware upgrades and network security improvements with cost analysis.
    Show 1 more
    • Installed and configured SCCM and Data Protection Manager for Exchange and file servers.
  7. Nov 2008Jun 2010

    System Engineer / Project Team Lead

    Germania Insurance · Brenham, TX
    • Researched and implemented a Citrix environment for field adjusters.
    • Administered SAN, VMware ESX/vSphere, Windows Server 2003/2008, and Red Hat Linux.
    • Responsible for performance monitoring, tuning, capacity planning, and patch management strategy.
    Show 4 more
    • Supported IBM i5 systems, communications (TCP/IP, DDM, OptiConnect), and high-availability strategy.
    • Designed and implemented RSA two-factor authentication with Active Directory; set up SCOM.
    • Planned, installed, and managed WebSphere, JBoss, and ILOG JRules servers.
    • Planned the technical aspects of yearly disaster-recovery tests.

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Loc Nguyen with his family

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