rlwilliamson@digital-ghost.net: ~
      

      

        

      

    

    

      

        RW
        Ryan Williamson
      

      available
    

  


  
  

    
about

    

      
0
years at Deloitte

      
0
cloud providers

      
100s
Azure subscriptions

      
0
MS certifications

    

    
Lead DevOps Engineer at Deloitte Technology US (DT-US) with 8+ years of experience scaling cloud platforms. Currently on the iCMS Tax DevOps Team providing Azure DevOps and cloud platform engineering support for Deloitte's Tax Service Line: the firm's tax preparation, compliance, accounting, and filing aplications used to deliver services to clients at scale.

    
Earlier, served as a senior technical lead on the iCMS POP DevOps Team, where I was a core contributor on a multi-year data center migration moving Deloitte's on-premises infrastructure to a multi-cloud footprint across Microsoft Azure, AWS, and GCP. Focused on moving teams from reactive firefighting to proactive, platform-driven engineering, with security and governance embedded at every layer.

  


  
  

    
experience


    

      

        

          
Lead DevOps Engineer, Deloitte Technology US (DT-US), iCMS Tax DevOps Team

          
Oct 2025 - Present · Remote (Hermitage, TN)

          
Senior technical lead providing Azure DevOps and platform engineering for Deloitte's Tax application. Click to expand.

        

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  •  Served as a senior technical lead providing Azure DevOps and platform engineering support for Deloitte's Tax Service Line: the firm's tax preparation, compliance, accounting, and filing applications used to serve clients at scale.
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  • Build Azure CI/CD pipelines, infrastructure-as-code (Bicep, ARM, Terraform), and release engineering practices keeping mission-critical tax applications running reliably and securely.
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  • Provision and manage Azure environments end-to-end (resource group design, networking with NSGs and private endpoints, identity through Entra ID and RBAC, and platform observability).
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  • Embed DevSecOps controls (secret scanning, policy-as-code with Azure Policy, least-privilege RBAC, secrets management via Key Vault, and security gates) directly into Azure DevOps and GitHub Actions pipelines.
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  • Partner with developers and operations to align Azure platform strategy with delivery velocity, scaling infrastructure alongside increasingly demanding compliance workloads.
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  • Operate under Deloitte's rigorous standards for client data integrity and regulatory compliance, treating security and governance as first-class engineering concerns rather than late-stage afterthoughts.
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            AzureBicepARMTerraform
            DevSecOpsCI/CDKey Vault
            Azure PolicyEntra IDRBAC
          

        

      

    


    

      

        

          
Lead Systems Administrator, Deloitte Technology US (DT-US), iCMS POP DevOps Team

          
Jun 2022 - Oct 2025 · Remote (Hermitage, TN)

          
Core contributor on a multi-year data center migration to Azure, AWS, and GCP. Hundreds of subscriptions. Click to expand.

        

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  • Served as a senior technical lead on the iCMS POP DevOps team (6 to 15 engineers), driving Azure adoption, platform automation, and reliability across the team's portfolio of supported workloads.
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  • Core contributor to a multi-year data center migration moving Deloitte's on-premises infrastructure to a multi-cloud footprint across Azure, AWS, and GCP, including workload assessment, network and identity planning, lift-and-shift execution, and post-migration optimization.
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  • Helped shift the team from traditional sysadmin operations to a cloud-first, automation-driven model, replacing manual server provisioning, patching, and configuration management with PowerShell, ARM/Bicep, and Azure DevOps pipelines.
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  • Designed and operated Azure environments at scale (hundreds of subscriptions), including resource group strategy, network segmentation with NSGs and private endpoints, and identity via Entra ID and RBAC.
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  • Implemented production observability with Dynatrace and Azure Monitor, giving the team end-to-end visibility into application performance and infrastructure health across cloud and on-prem workloads during the migration.
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  • Partnered with security and compliance teams to apply DevSecOps controls (IAM, threat and vulnerability management, Key Vault-backed secrets, Azure Policy, and least-privilege RBAC) across new cloud workloads.
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  • Designed for resilience: high availability architecture across availability zones, automated patch management, and documented disaster recovery procedures for cloud-resident workloads.
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  • Practiced SRE fundamentals (incident management, blameless post-mortems, root-cause-driven remediation), reducing repeat incidents through systemic fixes rather than tactical patches.
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  • Mentored junior systems administrators on Azure, PowerShell, and migration tooling, raising the team's overall cloud fluency in parallel with the data center exit.
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            Multi-cloudData center migrationAzureAWSGCP
            DynatraceSREPowerShellBicep
            Disaster RecoveryHigh Availability
          

        

      

    


    

      

        

          
Senior Systems Administrator, Deloitte Technology US (DT-US), iCMS POP DevOps team

          
Feb 2018 - Jun 2022 · Hermitage, TN

          
Windows Server, Active Directory, Group Policy, PowerShell automation. Earliest cloud-adoption work. Click to expand.

        

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  • Administered Windows Server, Active Directory, and supporting infrastructure for the CMS POP team's portfolio, ensuring high availability for the platforms the team supported.
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  • Maintained core platform services (DNS, Group Policy, file and print services, monitoring, and backup) across geographically distributed environments.
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  • Built PowerShell automation for routine operational tasks (user provisioning, server build-outs, patch deployment, health checks), eliminating significant manual toil and standardizing previously ad-hoc workflows.
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  • Contributed to early cloud-adoption efforts on the POP team (initial Azure IaaS workloads, hybrid networking, Entra ID integration), laying the groundwork for the full multi-cloud migration that followed.
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  • Owned incident response and change management for production systems supporting tax compliance workflows, with hands-on involvement in critical-period readiness for regulatory deadlines.
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  • Collaborated with networking, application, and service-desk teams to triage cross-functional issues, often serving as the connective tissue that turned ambiguous incidents into clear remediation plans.
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  • Promoted to Lead Systems Administrator in 2022 in recognition of expanding scope, platform ownership, and technical leadership.
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            Windows ServerActive DirectoryGroup PolicyDNS
            PowerShellHybrid networkingIncident response
          

        

      

    

  


  
  

    
projects

    

      
Azure Cloud Resume · the website you're on right now!

      
rlwilliamson.dev · open source

      
This resume. Static site on Azure Static Web Apps, Python Azure Function backed by Cosmos DB serverless, Bicep IaC, GitHub Actions CI/CD with pytest-gated deploys, custom domain with DigiCert-issued SSL via Namecheap DNS. Deployed end-to-end at zero monthly cost.

    

  


  
  

    
skills

    

      

        
Cloud Platforms

        
Microsoft Azure (Resource Manager, Static Web Apps, Functions, Cosmos DB, Storage, Key Vault, Entra ID, NSGs, Private Endpoints, Azure Policy, Azure Monitor), AWS, GCP

      

      

        
DevOps & CI/CD

        
Azure DevOps Services, GitHub Actions, CI/CD pipeline development, release engineering, environment management, change management, DevOps engineering

      

      

        
Infrastructure as Code

        
Bicep (current focus), ARM templates, Terraform, PowerShell DSC, configuration management, automation

      

      

        
Cloud Security & Identity

        
DevSecOps, IAM, RBAC, Cloud Security, NSGs, Key Vault, threat and vulnerability management, policy-as-code, compliance-driven delivery

      

      

        
Cloud Migration & Architecture

        
Data center migration, multi-cloud architecture (Azure / AWS / GCP), enterprise platform management, on-prem infrastructure, hybrid networking, workload assessment, lift-and-shift, post-migration optimization

      

      

        
Reliability & Operations

        
Site Reliability Engineering (SRE), incident management, disaster recovery, high availability architecture, patch management, root-cause analysis, on-call response

      

      

        
Systems Administration

        
Windows Server, VM administration, Active Directory, Entra ID, Group Policy, DNS, backup & recovery, server administration

      

      

        
Observability

        
Dynatrace, Azure Monitor, Application Insights

      

      

        
Languages & Scripting

        
PowerShell, Bash, Python, YAML

      

      

        
Leadership & Process

        
Technical lead, mentorship, cross-functional collaboration, Agile/Scrum

      

    

  


  
  

    
certifications

    

      

        
AZ
900

        

          
Azure Fundamentals

          
Microsoft · AZ-900 · active

        

      

      

        
AI
900

        

          
Azure AI Fundamentals

          
Microsoft · AI-900 · active

        

      

    

  


  
  

    
contact

    

      
Let's build something together.

      
Open to senior DevOps and platform engineering opportunities, full-time and contract.

      

        rlwilliamson@digital-ghost.net
        LinkedIn