IT Infrastructure Engineer in New York NY | NYC | Resume 12 Years

James Garrigan - IT Infrastructure Engineer – PowerShell - New York NY - NYC

James Garrigan

IT Infrastructure Engineer

Resume 12 Years


Innovative and Multifaceted IT Infrastructure Engineer

Technical Skills

Windows Server 2022/2019/2016/2012/2008/2003 R2 | Exchange 2007/2003

Hyper-V | VMware | Active Directory | DNS | Group Policy | TCP-IP | PowerShell


Expert IT Specialist Contractor via Broad Crossing Inc.

New York City Department of Education


Brooklyn, NY

July 2021 - Present

  • The contract job was renewed for two more years with a new job title via Broad Crossing Inc.
  • I am now managing 15,000 lines of PowerShell code for the server integration tasks. Circa July 2019 550 lines of code existed.
  • As new requirements for the integration process arise I update the code and the QA process accordingly.
  • I updated the code to function with Server 2022.
  • I recently completed a major update of the server integration script to accommodate a new networking architecture while maintaining full compatibility with the current environment. I added support for VLSM, new DHCP scopes, and settings such as DNS addresses were moved from code to text files.
  • Recently the entity changed its DNS settings. Because I planned appropriately I only needed to update one text file for the script and one tab for the QA process in the Excel worksheet template file.
  • I continue to increase the level of automation by reducing the amount of human input.
  • I added encryption. The process is now more secure. The operator will not need to enter two pairs of credentials.
  • I developed code which proactively monitors and manages over 3,300 physical and virtual servers.
  • The monitoring framework enables the servers to automatically resolve faults for both Hyper-V replication and DHCP and some unresponsive operating system states.
  • In addition the framework ensures that the Window-based servers with more than 30 days of uptime are restarted outside of normal operating hours. Prior to implementing the code it was not unusual to find servers which had not been restarted for several years.
  • I created multiple scripts to change the DNS IP address settings in the Hyper-V servers, virtual machines, and DHCP services.
  • Via PowerShell I generate reports which enable management to proactively allocate larger blocks of IPv4 addresses to schools. I have also created code which updates the configuration of the respective DHCP scope.
  • I implemented and deployed code which creates a centralized nightly backup of the DHCP configuration from each school.
  • I receive requests from the SCCM team to create code to enable their processes to execute.
  • During Fridays I conduct online classes for interns and the server team.
  • Within related internal correspondence my name appears in the list of recipients along with members of management.
  • Key technical and educational staff members reach to me for assistance and timely decisions instead of their in-house bureaucratic IT groups.

Specialist / Classroom Connectivity - Server QA Deployment Engineer Contractor via IIT

New York City Department of Education


Brooklyn, NY

July 2019 - July 2021

  • From the existing PowerShell scripts, originally 550 lines of code only for Server 2012R2, I developed a cohesive process using PowerShell which manages the configuration of the Hyper-V Host servers and multiple Windows and Linux virtual machines. Approximately 10,000 lines of code existed at the end of the first contract.
  • I created new versions of the integration scripts for Windows Server 2016, Windows Server 2019, RHEL 7.7, RHEL 8.2, and CentOS 7.
  • I reduced the integration's deployment time from hours to approximately 50 - 60 minutes. The VM’s are simultaneously created and configured.
  • I created a quality assurance process to verify the configuration. I utilized Excel to create an integration checklist with a QA tab
  • I significantly reduced the quantity of manual input for the integration. For the Linux VM’s I used plink.exe to automate tasks which were manually executed via the vi editor. I also used winscp.exe to automate copying files to the Linux VM’s. For Server 2016 … I leveraged PowerShell Direct and for Server 2012R2 I developed an innovative solution.
  • I created Red Hat and CentOS Kickstart images which enable automated custom settings per site. The existing RHEL 6.4 script required the operator to manually key in the configuration.
  • Within the integration script I provided the operator with the ability to selectively execute blocks of code thus enabling the operator to recover from externally caused errors and rebuild individual VM's.
  • I created a PowerShell script which locates and resolves Hyper-V replication problems.
  • All blocks of code that execute changes are tested within an IT lab prior to being used in the production environment.
  • I create and update documentation for the pre-integration tasks and the integration tasks. I share it with the related teams.
  • I also execute live demonstrations for my colleagues.
  • Daily tasks include receiving help desk tickets, executing the scope of work, and updating the tickets.

Information Technology Contractor

New York City Department of Education


Brooklyn, NY

July 2019 - Present

  • Provide support for the Classroom Connectivity Project of school server integration including but not limited to delivery, installation, and break/fix activities.
  • Configure physical (Windows 2012 R2 Core) and virtual servers (3 Windows VM's and 2 Linux VM's), Remote Access cards, Active Directory, DNS Services, LAN and network services.
  • Troubleshoot and provide support for hardware and software problems during the server integration including, but not limited to, DHCP, DNS, Active Directory, SNMP, TCP/IP, and WINS.
  • Create and update documentation of all work effort to support server integration for sites, including design documents and process diagrams
  • Perform testing on Servers.
  • Interact with the client's end-users and vendors to resolve logistic and hardware issues with equipment.
  • Script/automate tasks to improve provisioning and troubleshooting

IT Support Engineer

PHM Services

New York, NY

April 2019 - April 2019

IT Support Engineer

PHM Services

New York, NY

December 2018 - March 2019

IT Support Engineer

SourceWave Inc

New York, NY

November 2018 - November 2018

IT Systems Field Engineer

PHM Services

New York, NY

May 2017 - May 2018

IT Infrastructure Engineer / Team Leader

Lloyds Bank, Plc.


New York, NY

March 2011 - May 2016

Hired as a full-time employee.

I was a trusted advisor to management, developed innovative solutions for unique problems, delivered projects in a timely and efficient manner, resolved end user and other technical issues, and shared knowledge with colleagues. Systems: Exchange 2003 - High Availability - CA RHA Clusters, Exchange 2007 Microsoft Clusters (CCR's) on VMware, and BlackBerry 5.x / 12.x, RightFax - High Availability, using VMware Site Recovery Manager.

  • Participated in a datacenter migration: Data circuits | Created a script to copy data from EMC storage to NetApp storage. The script leveraged Robocopy and recursive logic to mitigate issues with long file/folder paths
  • PowerShell / batch file scripts / scheduled tasks were utilized to extract and forward data via email to UK teams
  • A PowerShell script was created to increase the efficiency of the monthly Microsoft patch installation process. The script stopped services on related groups of servers, application servers followed by the database servers. All servers were restarted, patches were installed, necessary reboots occurred, and the services were started on the database servers followed by the application servers.
  • Redesigned the US Active Directory - Forest Consolidation | Group Policy | Schema updates - to harmonize US AD to headquarters' directives with minimal impact to production
  • Implemented Cisco IronPort email security appliances with redundancy
  • Implemented MessageLabs SPAM Manager: Reduced IT overhead | Provided better service to the colleagues
  • Managed Microsoft Exchange - Consolidated Exchange Organizations | Upgraded Exchange 2003 to Exchange 2007 Microsoft Clusters (CCR's) on VMware
  • Implemented BlackBerry 5.x and 12.x with high availability
  • Integrated InfoBlox DNS physical and virtual appliances with Microsoft DNS: Harmonized US and UK systems and enhanced the security posture of the IT environments
  • Managed RightFax | Upgrades | SIP line migration | BCP via VMware Site Recovery Manager
  • Optimized / redeployed Websense and Microsoft ISA to achieve better integration in the production and the DR datacenters thus eliminating past issues | Leveraged pac files - enabled a simple method of automatic failover/ load-balancing. Utilized group policies to push the configuration to servers and workstations
  • Replaced Websense / Microsoft ISA with appliances from Trustwave (M86): Malware filtering, URL filtering, Internet Proxy - Created the initial polices, regex expressions … - handed over to the US IT Security team
  • Participated in the rollout of Windows 7 | Policies | Configuration | Application Palette
  • Composed documentation for business requirements, project implementation, bulletins, Visio diagrams
  • Created PowerPoint presentations to educate and to build consensus for strategic decisions
  • Acted as IT Liaison to internal and external counsel for all US and relevant UK Legal Discovery (e-discovery), gathering relevant data for active and pending litigation. Application - Enterprise Vault Discovery Accelerator
  • Managed the US IT Compliance (FINRA) program for a broker/dealer business from inception, employing Enterprise Vault Compliance Accelerator with WORM storage to satisfy FINRA requirements 17a-3 and 17a-4
  • Responsible for the annual audit with the Bank's 3rd party designee to FINRA
  • Implemented Globanet's Merge1 to capture BlackBerry SMS | PIN-to-PIN | Bloomberg Email
  • Implemented Actiance Vantage software to capture Cisco Jabber chat data
  • Managed and executed the IT Infrastructure tasks for a business divestment
  • Provided guidance to the UK e-surveillance program to satisfy a LIBOR requirement for the FSA
  • Primary contact between US IT Infrastructure and UK - Home Office IT for Cyber-security and Infrastructure projects | IT related - Architecture, Project funds, Human Resources - Training systems | Employee Records
  • Built multiple VMware-based preproduction test environments in the US that were integrated with the respective UK headquarters IT test environments to facilitate the deployment of UK application/systems in the US
  • Leveraged VMware to deploy Windows servers from OS templates integrated with UK standard build scripts
  • Assisted with the administration and maintenance of Citrix XenApp, NetScaler, VMware vSphere, NetApp SAN

Key Skills

  • Active Directory
  • Archiving
  • Business Continuity Planning (BCP)
  • Connectivity Devices & Protocols
  • Cyber Security
  • Directory Services
  • Disaster Recovery
  • DNS
  • Documentation
  • E-Discovery
  • Exchange 2007/2003
  • Group Policy
  • High Availability
  • Hyper-V
  • Messaging
  • Network Communications
  • Patch Management
  • PowerShell
  • Scripting
  • TCP/IP
  • Windows Server 95, XP, 7, 10
  • Windows Server NT 4.0, 2000, 2003, 2008, 2012, 2016, 2019, 2022

Hands-on Skills

  • Enterprise Vault
  • NetApp SAN
  • Red Hat Linux RHEL
  • VMware





Microsoft Server 2016 MCSE Course

Microsoft Certified System Engineer

December 2000

Microsoft, License 2164299

Independent Learning

Mastering Windows Server 2019 by Jordan Krause



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