Jonathan Armstrong
Pittsburgh,PA
Summary
Analytical Systems Engineer with 18 years experience in secure environments. Expertise in software & IT management, building & maintaining critical infrastructure. Extensive experience in troubleshooting workflows & ensuring peak performance/security. Strong VMWARE knowledge & confident project management for complex initiatives. Deep understanding of diverse applications.
Overview
18
18
years of professional experience
Work History
Part-Time Contractor, Systems Engineer
SingleSource Property Solutions, LLC.
02.2026 - Current
- Implemented new on call solution through SIGNL4
- Updated alert monitoring through OpManager
- Assisted in Hyper-V failover Environment host upgrades
- Networked rack mounted UPS's and set up alerting
Systems Engineer
Rue21
11.2021 - 05.2024
- Migrated 300+ virtual servers from Vcenter host cluster to Dell VxRail Vcenter clusters at multiple locations
- Set up new Dell PowerProtect DP IDPA appliance using Avamar for backup and a second Vault PowerProtect DP IDPA appliance with CyberRecovery for ransomware protection
- Set up new Dell PowerScale Isilon storage device with second device at secondary location for replication
- Participated in Windows and Linux OS upgrade through in place upgrade or fresh build and migrate
- Implemented Azure Virtual Desktop (AVD) personal and host pool to be used by vendors from all over the world
- Managed on premise Virtual Desktop Infrastructure (VDI) through Hyper-V on multiple hosts
- Managed Microsoft Clustered SQL servers set up in Always On High Availability
- Work with different departments to build and plan new VM’s for different projects
- Monthly security and OS patching
- Assist with the security team to mitigate OS vulnerabilities
Systems Engineer
SingleSource Property Solutions, LLC.
05.2018 - 05.2021
- Supported, maintained and monitored multiple network segments including internal and public-facing systems
- Migrated email system from Exchange 2013 to Office 365
- Continually managed the hybrid exchange/Office 365 service for 200+ users
- Installed and maintained servers as well as 200+ workstations including adding/removing users and permissions through Active Directory (AD domain) and PowerShell
- Configured, deployed and managed 75+ virtual servers in Production/Development/Test Environments VMware 6.5 cluster consisting of eight ESXi hosts
- Typical operating systems were Windows Server 2012R2, 2016 and 2019
- Created complex documentation of data center and corporate networks and regularly reviewed processes around them
- Participated in vulnerability management program by responding to security threats as they related to system software and network exposure
- Assisted with industry compliance standards such as PCI-DSSv3
Senior Systems Engineer
Alera, LLC.
12.2015 - 04.2018
- Implemented physical to virtual migration process of VMware 5.5.0+,
which included creation of VM's and templates - Lead engineer responsible for Dell Equallogic and HP Nimble SAN
appliances - Configured snapshots and backups for Disaster Recovery and Business
Continuity (DR/BC) - Installed, configured, and maintained two member Cisco ESA cluster
providing security to corporate email transactions - Ensured that program and system failures are minimized to meet
production schedules and maintain a high level of efficiency - Set up environmental monitoring using RoomAlert
- Responsible for inventory asset management, purchasing and
documentation
Systems Engineer
Ncompass, LLC.
11.2008 - 12.2015
- Conducted network and workstation vulnerability scans, reporting on findings and performing data correlation and analysis
- Provided help desk ticket support for more than 250 employees and machines
- Managed and addressed challenges arising from firewall, proxy, router, siem and system logs
Education
Associate of Science - Information Technology
ITT Technical Institute
Skills
- Microsoft Windows Server
- Microsoft Exchange (07,10,13,19,365)
- Active Directory
- IIS
- FTP/SFTP
- DNS
- DHCP
Microsoft Office 365/Azure
- WSUS
- VPN
- VMware
- SAN
- Hyper-V
- Infrastructure development
- Virtualization
- Technical Documentation
Timeline
Part-Time Contractor, Systems Engineer
SingleSource Property Solutions, LLC.
02.2026 - Current
Systems Engineer
Rue21
11.2021 - 05.2024
Systems Engineer
SingleSource Property Solutions, LLC.
05.2018 - 05.2021
Senior Systems Engineer
Alera, LLC.
12.2015 - 04.2018
Systems Engineer
Ncompass, LLC.
11.2008 - 12.2015
Associate of Science - Information Technology
ITT Technical Institute