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Jefferson Lowery

@jeffersonlowery

Senior Windows Systems Engineer specializing in Active Directory, Azure, and automation for secure, reliable migrations.

United States

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What I'm looking for

I’m looking for a role where I can own Windows + Active Directory and Azure hybrid environments, automate with PowerShell, and drive secure, measurable migrations—partnering with teams on reliability, compliance, and ITIL-aligned change with strong ownership.

I’m a results-driven Senior Windows Systems Engineer with 10+ years administering Active Directory, Azure, and enterprise Windows Server environments. I design PowerShell automation, lead large-scale migrations, and improve operational reliability and security posture for Fortune 500 and public sector organizations serving 50,000+ users.

In recent roles, I’ve built enterprise migration frameworks that reached 99.65% completion, hardened hybrid identity with Entra ID and GPO security baselines, and delivered measurable gains in uptime and compliance. I also bring a cloud-solution mindset—supported by Microsoft and VMware certifications (AZ-104, AZ-305, VCP-DCV)—and an ITIL-aligned approach to runbooks, documentation, and change management.

Experience

Work history, roles, and key accomplishments

Current

System Analyst

Current

CommScope / Delta Systems and Software

Sep 2025 - Present (9 months)

Architected and maintained an 8,700-line PowerShell migration framework supporting 20 operation modes, driving enterprise file share migration to 99.65% completion across 113 shares (928,770 files verified). Implemented ACL backup/restore with chunked resume and zero-mismatch byte-for-byte verification to support compliance evidence.

PowerShell Active Directory File Share Migration Robocopy MD5 Certutil Fc Authentication Credential Resets

System Engineer

Kansas Bureau of Investigations / Allstem Kansas

May 2024 - Jul 2025 (1 year 2 months)

Administered Windows Server 2019/2022 infrastructure for 1,000+ law enforcement users across multi-region AWS VPCs, maintaining 99.9% uptime. Automated patching (99.5% compliance), migrated 25+ applications from legacy ADFS to Entra ID (40% faster authentication, 30% lower costs), and reduced privileged account sprawl by 60% with CyberArk.

ADFS To Entra ID Migration Azure Migrate

Cloud Solution Architect

Microsoft / Persistent Systems

Apr 2023 - May 2024 (1 year 1 month)

Delivered Windows Server and Active Directory support for Fortune 500 clients (50,000+ users combined), leading 25+ AD consolidation projects with zero business interruption. Built high-availability ADFS/DR solutions, achieved 95–100% monthly patch compliance via AWS SSM, and migrated 500+ VMware VMs to Azure Local clusters.

Quest MMAD ADMT Azure Local Dell PPDM And Azure Backup

Senior System Engineer

Unitek Learning

Aug 2018 - Apr 2023 (4 years 8 months)

Administered Windows Server 2012/2016/2019/2022 across a 15-domain AD forest supporting 5,000+ educational devices. Reduced deployment time by 40% through PowerShell/AWS automation, executed 8+ ADFS migrations with 50+ SaaS integrations for SSO, and improved privileged security posture by 75% using CyberArk-based PAM.

ADFS PowerShell

Active Directory Systems Specialist

Infrastructure & Energy Alternatives Inc.

May 2017 - Aug 2018 (1 year 3 months)

Managed Windows Server 2012/2016 infrastructure for 5,000+ users, administering Active Directory domain controller management, site configuration, and replication monitoring across geographically dispersed offices. Led a VMware-to-Hyper-V pilot migration (25 VMs) and implemented centralized security controls including Azure MFA/conditional access and PAM via Quest Privileged Password Manager and M

Windows Server Administration Configuration Veeam Backup & Replication Azure MFA Conditional Access Microsoft LAPS DNS DHCP (Secure Dynamic Updates)Windows Admin Center

Remote Services Technician

Support.com

Mar 2015 - Aug 2017 (2 years 5 months)

Provided Level I WAN/LAN/WLAN support for Comcast residential customers, troubleshooting connectivity issues including modem and wireless problems. Guided customers through router administration, port forwarding, and parental controls, documenting interactions and escalating complex cases to higher-tier support.

WAN Troubleshooting Cable Modem Diagnostics Port Forwarding Parental Controls Customer Technical Support Escalations Technical Documentation

Junior VMware Engineer

The Atlanta Computer Dude MSP

Mar 2014 - Aug 2017 (3 years 5 months)

Deployed and supported Windows Server and Active Directory environments for SMB clients, managing Hyper-V networking, failover clustering, and live migration in virtualized infrastructure. Performed P2V migrations with minimal downtime, implemented SAN connectivity (iSCSI and fiber channel), and centralized monitoring/patching with SolarWinds.

Hyper V Hyper V Failover Cluster Active Directory VMware Converter (P2V)ISCSI Fibre Channel SAN