Thomas Mrazek Email & Phone Number

White Plains, Ny, Us

White Plains, Ny, Us

Paris, Fr

Responsibilities:- Provided comprehensive support for physical and virtual VMware and Windows Server infrastructures, focusing on system builds, provisioning, and ensuring high availability.- Developed and implemented scripting and automation solutions for reporting, security enhancements, and optimization of infrastructure environments.- Led the execution of new projects within the Infrastructure Team.- Supported server security remediation efforts and managed patching processes.- Offered secondary support for application/package deployment.- Assisted with the maintenance and support of VDI/Citrix environments.Projects:- LanSweeper Implementation: Deployed the LanSweeper application for asset tracking and reporting, generating detailed reports to assist in identifying vulnerabilities and auditing system assets.- Grafana Dashboards: Implemented Grafana dashboards utilizing Zabbix templates to monitor performance metrics across the server environment.- Zabbix Monitoring Enhancement: Enhanced Zabbix monitoring by adding templates to better understand performance metrics, utilizing triggers to send alerts to application owners.- Reporting Web Server: Developed a web server to host exported outputs of daily reports, enabling proactive issue resolution before escalation.- Server 2012 End-of-Life Migration: Successfully migrated applications from Server 2012 to ensure continued support and compliance.

Montvale, New Jersey, Us

Responsibilities: • Consultant to three Nonprofit organization located in Fairfield County, CT.• Infrastructure team lead for team of three managing a data center, 10+ locations, over 500 employees, 300+ virtual machines, 100+ laptops, and multiple smart phones.• Successfully supported, administered three [VMware, Citrix, and Microsoft Windows] virtual environments & upgraded Windows infrastructure in order to improve organization stability resulting in decreased crashes, network outages, and performance problems.• Administration of Microsoft Azure AD, Office365, and Microsoft365 apps including SharePoint. • Provide level 3 escalations for all IT related issues.• Advise on recommendations towards the improvement of the infrastructure.Projects:• Build imaging server for automated rollout of company laptops and desktops.• Fix connectivity issues with WSUS server for pushing out Windows updates.• Build Inventory and App deployment server (PDQ Deploy).• Rollout of Windows 10 VDI on XenDesktop.

London, Gb

Responsibilities: • Optimized relationships with business units and development teams to gather requirements, communicate timelines, and provide resources for projects.• Managed Windows infrastructure team of 25 managing multiple data centers, corporate office, 80+ locations globally, 23000+ employees, 5000+ physical and virtual servers.• Crisis management and chief escalation point in the department.• Successfully drove down costs by improving vendor relationships. • Participates in mergers and acquisitions with focus on IT system integration.• Designs suitable server environment for developers, including production, UAT, Dev, and DR environments as well as backup of critical data.• Creates and maintained Group Policy Objects and company polices to ensure SAS 70, SOX and SOC 2 compliance is met. • Refreshed all company Windows servers to leverage virtualization while saving over $100,000 in hardware. • Performs Disaster Recovery exercises including plan development, execution testing, and documentation.• Manages all hardware replacements for Windows servers and desktops. Projects:• Project Managed IT side of new Los Angeles office holding 75 employees.• Lift out of Fund Accounting department from Hedge Fund.• Managed acquisitions of Conifer Financial, Citibank Private Equity and Hedge departments• Upgrades: Windows XP/7/10, Server 2003/2008/2012/2016/2019, Citrix 4.5 to 5.0 to 6.0, VMWare vCenter 4.1 to 5.1 to 5.5 to 6.0• Implemented a multisite HP EVA SAN and multiple HP BladeSystems for virtual environments.• P2V: Moving physical Windows Servers to VMWare environment with zero to little downtime.• DFS: Created DFS namespaces and replication to create an active/active system for user home directories which helped stop downtime of these servers.• Implementation of Folder Redirection for roaming profiles, creating a faster login time for users.

London, Gb

London, Gb

London, Gb

London, Gb

College Park, Md, Us

Alexandria, Va, Us

Master Of Science - Ms, Information Technology

Bachelor Of Science - Bs, Information Technology

Associate Of Science - As, Computer Information Systems