Senior Tanium Engineer & Citrix Infrastructure Specialist

ABRAHAM
BROWN

20+ years engineering enterprise-level Windows Server, Citrix VDI, and hybrid cloud infrastructure — built for scale, secured by design.

Get In Touch View Experience
20+
Years in IT
7
Certifications
10+
Enterprise Clients
10K+
Users Supported

// Who I Am

SEASONED
TECHNOLOGIST

I'm a seasoned IT professional with over two decades of hands-on expertise in enterprise Windows Server and Citrix environments. I design, deploy, and maintain high-availability VDI solutions using Citrix Virtual Apps and Desktops, Citrix Cloud, and DaaS — at scale, with precision.

My experience spans Active Directory, Group Policy, DNS/DHCP, PowerShell automation, SCCM, Tanium Platform management, patching and vulnerability remediation across hybrid cloud and on-premise platforms.

I bring both deep technical capability and the communication skills to translate complex infrastructure to stakeholders — from root cause analysis to change management boards.

// Certifications

  • Microsoft Certified Systems Engineer (MCSE)
  • Microsoft Certified Systems Administrator (MCSA)
  • Microsoft Certified Professional (MCP)
  • CompTIA Network+
  • CompTIA A+
  • CompTIA IT Operations Specialist
  • Tanium Certified Operator (TCO)

// Core Competencies

WHAT I
BRING

Citrix Virtual Apps & Desktops
Citrix Cloud / DaaS
XenServer / VMware vSphere
PVS / MCS / StoreFront
Active Directory & Group Policy
Windows Server 2008–2022
PowerShell Automation
Tanium Platform / Endpoint Management
Azure / Hybrid Cloud
Patch & Vulnerability Mgmt
SQL Server Administration
MS Exchange Email
Data Center Migrations
IT Operations Management
Disaster Recovery Planning
Leadership & Team Building

// Career History

PROFESSIONAL
EXPERIENCE

Sr. Tanium Engineer / Sr. Security Analyst Mar 2026 – Present
Kettering Health · Remote
  • Provide Level 3 technical support and strategic guidance to fully deploy, utilize, and troubleshoot the Tanium suite of operations and security modules for endpoint management.
  • Lead Tanium module implementations, upgrades, and maintenance of on-prem and cloud-based systems.
  • Detect, assess, and remediate endpoint vulnerabilities for compliance; identify and mitigate risk across enterprise endpoints.
Sr. Citrix Solutions Engineer Oct 2025 – Mar 2026
Randstad USA (Client: Mass General Brigham Health Partners) · Remote
  • Led the Citrix team and oversaw health and performance of the Citrix infrastructure, ensuring availability and optimal functionality of core services.
Principal Citrix Solutions Engineer Apr 2024 – Sep 2025
Merge IT (Clients: Dell Inc., Spirit Aerospace) · Remote
  • Spearheaded hardware upgrade from Cisco UCS M4 to M7 and Citrix Hypervisor 8.2 CU1 to XenServer 8.4.
  • Managed Citrix Cloud, DaaS, XenServer, PVS, MCS, StoreFront, Delivery Controllers, HDX, Profiles, Director, and License servers.
  • Upgraded ControlUp from on-prem v8 to hybrid v9 for VDI and endpoint management.
  • Represented Citrix team in weekly Change Management meetings; led root cause analysis for major incidents.
Windows / Citrix Systems Engineer May 2023 – Feb 2024
SEV1TECH LLC (Clients: Sierra Nevada Corp / Sierra Space) · Remote
  • Led migration of 110 applications from Citrix XenApp 7.15 LTSR / Server 2012 to XenApp 2203 / Server 2022.
  • Administered Citrix policies, Azure, and Active Directory environments.
Enterprise Services Engineer Jun 2021 – May 2023
Tanium Inc. (Clients: Wells Fargo, Truist Bank, Sensata Technologies) · Remote
  • Provided Level 3 technical support for Tanium endpoint security and operations modules.
  • Deployed and maintained on-prem and cloud Tanium solutions across enterprise environments.
  • Built and troubleshot environments running Hyper-V, Windows Server 2022, Azure, Active Directory, and PKI.
Vulnerability Mitigation Systems Engineer Oct 2020 – Jun 2021
Radian Group · Remote
  • Managed Windows Server vulnerability remediation and patching across enterprise infrastructure.
  • Administered Azure and Active Directory Forest with multiple domains.
  • Managed large SCCM 1910 environment for patching, collections, and software deployment.
Sr. Principal Technical Architect / Sr. Systems Engineer Mar 2016 – May 2020
GDH Consulting (Clients: IBM, AT&T) · Remote
  • Architected and delivered large-scale migrations from AT&T to IBM data centers — including AD domains, Citrix farms, Exchange, and SQL servers.
  • Built Citrix XenApp 6.7, 7.6, and 7.15 LTSR farms from design to production.
  • Authored PowerShell/VBScript automation for registry management, patching, and domain operations.
  • Configured and managed WSUS, SCCM 2012, VMware ESXi, Hyper-V, Nagios, and ServiceNow.
Sr. Systems Engineer / Sr. Consultant Nov 2012 – Mar 2016
Xerox Consultant Company (Client: Healthland) · Remote
  • Led go-live implementations of EHR systems across multiple healthcare clients.
  • Designed disaster recovery solutions with Symantec Backup Exec and Unitrends.
  • Implemented and maintained Citrix XenApp 4.5 farms for healthcare environments.
Sr. Systems Analyst / Sr. Network Administrator Apr 2007 – Nov 2012
Kettering Health Network · Miamisburg, OH
  • Implemented Vendor Neutral Archive (VNA) with EMC Atmos Cloud for PACS image archiving and disaster recovery.
  • Led successful EPIC EHR implementations across multiple hospital campuses.
  • Administered SQL Server 2008 R2, Active Directory, Exchange, and SCCM/WSUS environments.
Systems Administrator Sep 2002 – Apr 2007
DRS Technologies Inc. · Dayton, OH
  • Provided remote IT support for 2,400 users across enterprise network infrastructure.
  • Implemented Citrix Presentation Server 3.0 farm from greenfield, publishing numerous enterprise applications.
  • Oversaw network connectivity, firewall management, and disaster recovery planning.

// Let's Connect

GET IN
TOUCH

Available for senior Citrix, cloud infrastructure, and systems engineering opportunities. Let's talk.

abraham.brown@live.com 937-718-4368 LinkedIn Profile

Support My Work

Appreciate any support for content, tips, or just buying me a coffee ☕

Brookville, OH 45309 · Open to Remote