Robert Chrosniak
Montgomery,AL
Summary
Skilled professional providing IT Expertise for over 25 years.
Extensive knowledge in Microsoft Exchange 2003/2007/2010/2013 and 2019.
Capable of designing and implementing Exchange servers with DAG and CAS Array.
Extensive knowledge in Microsoft Server systems from NT 4.0 to Server 2022
Familiar with PowerShell scripting and process automation.
Experience administrating Office 365 environments and troubleshooting synchronization issues.
Familiar with designing and implementation of Hybrid environment.
Experience building VM’S using Hyper V, VMWARE, Windows 2008 and 2012 Servers.
Proven knowledge in Active Directory and DNS configuration and administration.
Experience managing the Active Directory for 2016 Forest and Domain Functional Levels.
Strong knowledge of TCP/IP, network practices and concepts.
Troubleshooting and resolving any issues that come up for Active Directory, Exchange and Windows.
Design, test and deployment of network and security solutions for medium to large scale networks.
Overview
33
33
years of professional experience
1
1
Certification
Work History
State of Alabama AOC
06.2023 - Current
- Maintain, upgrade and administer VMWare Systems, 6 Physical ESXi Host Servers and 100+ Virtual Server and some limited work on PC desktops for IP reservations.
- Maintain AD, M365 and Teams for 2500 AOC employees.
- Resolve tickets assigned to SysAdmin queue in SHARK Ticketing System.
- Work with SCCM ver 2503 on keeping Servers updated with Windows Updates and various software deployments.
IT Core Systems Administrator
Seasons Federal Credit Union
05.2022 - 02.2023
- Provide Systems support for all banking software including Keystone, NCR, ATM/ITM OS, Alogent FastDOCS, OmniView document viewer.
- Provide hardware and Windows desktop and server OS systems support. Active Directory administration for users and groups, resetting passwords, assigning correct permissions for the appropriate users/groups.
System Admin II Contract position
Avangrid/Panzer Solutions
10.2021 - 03.2022
- Provide Level 2 desktop support for local Orange and remote people.
- Install new hardware and software.
- Image new and re-image old laptops for employees.
- Used Active Directory to reset computer and user accounts, move objects into correct OU, and assign users to correct OU groups.
Sr. Desktop Support
Valo Health
12.2020 - 09.2021
- Provide Level 2 desktop support for local Branford and remote people.
- Install new hardware and software.
- Image new and re-image old laptops for employees.
Contract position
Artech/Aecom
Rocky Hill, CT
06.2020 - 10.2020
- Provide Level 2 desktop support for local Rocky Hill CT employees.
Contract position
TPC/Wells Fargo
07.2019 - 11.2019
- Upgraded Cisco 9400 Catalyst Blade switches.
- Perform the physical replacement of the switches and made sure that all new devices were online and working correctly.
TCS/Duke Energy
12.2018 - 06.2019
- Take calls for Workstation Expedition Refresh team.
- Assist users with questions and problems after their computer upgrade from Windows 7 to 10.
- Push out needed software that was not installed during deployment with SCCM 2012.
- Provided mobile device support on Android and iPhone products using AirWatch.
- Provided executive VIP support for Duke Management.
- Used remote tool Bomgar to connect to computers and resolve issues.
- Supported O365 Office products including SharePoint, One Drive, Teams.
Robert Half Technology/Green Fiber
11.2018 - 12.2018
- Short term backfill desktop support for local and remote employees.
- Setup new Windows 10 computers, devices, printers, new Avaya VOIP phones.
- Troubleshoot Cisco VPN connection issues.
Systems Administrator
Joerns Healthcare
Charlotte, NC
03.2018 - 06.2018
- Working with WSUS and making sure all computers and server are up to date.
- Working with IIS7.0 in conjunction with WSUS.
- Working with WDS and setting up Windows 10 Pro images for deployment.
- Working with PRTG alerting and making sure that all systems are up and reporting.
- Working with Peak 10 in providing a co-location site for all servers to move to.
- Providing O365 email and OneDrive support.
- Setting up and installing new Windows 2012 R2 Servers on VMWare and Hyper-V.
- Global company with 80+ servers
Escalation Engineer
Microsoft Exchange Online O365
Charlotte, NC
07.2017 - 10.2017
- Take cases from ticket queue and resolve issues for O365 business customers.
- Troubleshoot and resolve issues with Hybrid Exchange configurations.
- Troubleshoot and resolve issues with EXO (Exchange Online) issues and configurations.
- Experience with Microsoft Exchange Online Protection (EOP).
- Experience with E-Discovery and Litigation Hold mailboxes.
- Received training and working experience of Azure AD Connect troubleshooting.
- Global company Microsoft
Exchange/Lync Support Administrator
HCL America
Cary, NC
11.2015 - 07.2017
- Manage and support Lync 2013 environment adding and modifying users.
- Manage and support Exchange 2010 environment adding new user, shared, room and equipment mailboxes.
- Modify user Exchange properties such as adding/changing SMTP email address entries.
- Manage Exchange 2010 Public Folders for users in adding folder or calendar entries.
- Created and modified Exchange Distribution lists in Exchange Management Console and Exchange PowerShell.
- Create and manage email DL’s in Mailman console for Distribution lists that need a combination of internal and external users.
- Provide Tier 1 Oncall off hours support for Exchange and Lync Servers.
- Created daily monitoring script for providing Exchange and Lync environment health status.
- Integrating Lync 2013 and UM for Exchange 2010.
- Troubleshoot and support any issues arising on Exchange, Lync.
- Assisted in developing KB (Knowledge Base) articles for common issues/procedures to provide to the Service Desk.
- Assisted in creation/finalization of the Leidos/HCL Lync 2013 run book.
- Manage user requests and incidents in the Service Now (SNOW) ticketing system.
- Create and manage FTP user accounts Serv-U management console.
- Assisted Tier 3 email engineers in various projects.
- Perform maintenance and Windows security patching on all Exchange and Lync servers.
- Manage users, anti-spam rules, exception lists and adding/blocking domain email in ProofPoint.
- Manage users and configure Lync Enterprise Voice.
- Global company India based
Senior Exchange Engineer/Active Directory Engineer
Weight Watchers
New York, NY
05.2014 - 08.2015
- Managed Active Directory objects and replication settings.
- Designed and implemented Exchange 2010 environment.
- Planned the Migration from Exchange 2007 to Exchange 2010.
- Implemented Archive mailbox, MRM, throttling and Transport rules.
- Management of certificates in the environment using our own internal CA.
- Setup a Hybrid environment with Exchange 2010 and Office 365.
- Migrate existing Exchange 2010 environment to Office 365 for 600+ users.
- Ready existing Exchange 2010 environment by applying patches and security updates to all servers.
- Perform exchange backup and also do the restore for mailbox as per the request.
- Troubleshoot and give root cause analysis for any issue arising on the exchange server.
- Manage and support Lync 2010 environment.
- Integrating Lync 2010 and UM for Exchange 2010.
- Domestic company
Exchange Engineer/Active Directory Administrator
Bendett & McHugh, P.C.
Farmington, CT
09.2011 - 04.2014
- Worked on migration of 2007 Exchange server to Exchange 2010.
- Configured co-existence between 2007 and 2010.
- Decommissioned the old 2007 servers after the migration was completed.
- Troubleshoot and support any issues arising on Active Directory, DNS and Exchange.
- Created DAG and CAS array in the environment by using the F5 load balancer.
- Created scripts to automate tasks like creation of mailbox, MRM policies, UM mailbox and environment health check.
- Delegated permissions to shared mailboxes and distribution lists as needed.
- Migrated existing Exchange 2010 environment to Office 365 for 500+ users.
- Configured the mail flow for the Hybrid setup and also configuration of the Microsoft Online Portal in Office 365.
- Addressed issues with user connectivity, server resources and network resources.
- Setup Outlook Anywhere for the environment and perform database maintenance.
- Implemented anti-spam on the HUB servers for protecting the env from Spam attack.
- Performed diagnostics of Arrays, Transport Hubs, Mailbox Servers, CAS Servers, Domain Controllers and more.
- Implemented the Outlook client rules via Group Policy.
- Managed and migrated OCS2007 to Lync 2010.
- Led the deployment for Lync 2010 by defining the required roles in the topology and completing the installation.
- Used F5 load balancer for reverse proxy in Lync 2010.
- Implemented SQL Mirroring for Lync 2010. Also enabled Archiving and Monitoring.
- Created POC environment for Lync 2010 implementation.
- Created documentation for production rollout of Lync 2010.
- Trained local IT staff on independently implementing Lync 2010.
- Performed rack/stack of new equipment in datacenter.
- Local company, 50+ servers
Exchange Engineer/Active Directory Administrator
Visiting Nurse & Health Services
Vernon, CT
02.2009 - 02.2011
- Ensured proper assignment and configuration of operations master roles for Active Directory.
- Designed and completed the migration of Exchange 2007 to 2010.
- Setup coexistence for exchange 2007 and 2010.
- Setup DAG and CAS array and also setup OWA and activesync.
- Performed Exchange backups and performed exchange restore.
- Setup activesync, OWA and Outlook anywhere for external users on the network.
- Performed routine preventative maintenance and evaluated the system for capacity planning on a regular basis.
- Responsible for addition and deletion of DHCP Scope and Lease.
- Created a Forest trust for sharing files between 2 domains.
- Performed a Failover test every Quarter for the environment.
- Managed the DHCP and created new Scopes and Lease as per the requirement.
- Configured remote PowerShell for management of exchange.
- Performed maintenance and patching of all the windows servers.
- Troubleshot connectivity issues with mailboxes and Outlook.
- Troubleshot OAB and ActiveSync issues.
- Implemented DAG in DAC mode.
- Delegated permissions to shared mailboxes and distribution lists as needed.
- Troubleshoot Outlook connectivity issues, Offline mailbox, cached mailboxes and credential issues.
- Created powershell scripts for generating health check reports for the environment.
- Troubleshooting issues with IIS and analyzing IIS logs.
- Retrieved mail and folders from archive upon request from management.
- Designed and deployed OCS 2007 Enterprise edition.
- Assigned Edge role for external sign in.
- Enabled Federation on OCS and also mass deployment of OCS clients using SCCM.
- Performed rack/stack of new server equipment.
- Local company 30+ servers
Education
Bachelor of Science - Management Information Systems
Central Connecticut State University
Skills
- Microsoft Windows 7/8
- Windows Server 2003
- Windows Server 2008/R2
- Windows Server 2012/R2
- Windows Server 2016
- Active Directory
- DHCP
- DNS
- TCP/IP v4
- TCP/IP v6
- WSUS
- Group Policy
- WAIK
- MDT 2010
- SCCM 2012
- Microsoft Word 2007/2010
- Microsoft Excel
- Microsoft Power Point
- Microsoft Project
- Microsoft Visio
- Microsoft SQL
- Adobe Acrobat
- Remedy IT
- Microsoft Exchange 2003/2007/2010/2013
- Lync 2010/2013
- Office 365
- Visual Studio 60
- Symantec Ghost 12
- Norton Antivirus Corporate
- Norton EndPoint Security
- SQL Server
- VERITAS Backup Exec 125
- TrendMicro Officescan 105 Server
- Remedy Ticketing System
- Cisco VPN
- SCCM 2007
- Cisco VoIP phone systems
- VMWare ESXi 703
- ProLaw
- DameWare
- TeamViewer
- PDQ Deploy
- Oracle
- PowerShell
- ProofPoint
- WDS
- USMT
- File transfer
- LDAP
- Kerberos
- IIS 70
- Compaq ProLiant Servers
- DL and ML series Servers
- Deskpro
- EN
- EP
- Workstation desktops
- LTE
- Armada series Laptops
- HP Pavilion Desktops
- LC Series Servers
- Dell Latitude Laptops
- Dimension Desktops
- IBM ThinkPad Laptops
- Aptiva Desktops
- Toshiba Protégé Laptops
- Apple Desktops/Laptops
- Xerox printers
- Tektronix printers
- SonicWall NSA 240
- IronPort C150
- Cisco C300V
- BlackBerry Smartphones
- Apple Smartphones
- Tablets
- HP/3Com Routers
- Switches
- Battery Backup Systems
- Avaya phone systems
- Datacenter
- Rack & Stack
Certification
- CompTIA Server+ Certification, 06/20
- CompTIA ITF+ Certification, 06/20
- Compaq/HP ProLiant Accredited Platform Specialist (APS) Certification, 06/99
- Microsoft Certified Systems Administrator (MCSA) Certification, 06/03
- CompTIA Network+ Certification, 06/02
- Microsoft Certified Professional (MCP) Certification, 06/96
- CompTIA A+ Certification PC Hardware, Windows and Mac OS, 06/97
Work Preference
Salary Range
$85000/yr - $200000/yrTimeline
State of Alabama AOC
06.2023 - Current
IT Core Systems Administrator
Seasons Federal Credit Union
05.2022 - 02.2023
System Admin II Contract position
Avangrid/Panzer Solutions
10.2021 - 03.2022
Sr. Desktop Support
Valo Health
12.2020 - 09.2021
Contract position
Artech/Aecom
06.2020 - 10.2020
Contract position
TPC/Wells Fargo
07.2019 - 11.2019
TCS/Duke Energy
12.2018 - 06.2019
Robert Half Technology/Green Fiber
11.2018 - 12.2018
Systems Administrator
Joerns Healthcare
03.2018 - 06.2018
Escalation Engineer
Microsoft Exchange Online O365
07.2017 - 10.2017
Exchange/Lync Support Administrator
HCL America
11.2015 - 07.2017
Senior Exchange Engineer/Active Directory Engineer
Weight Watchers
05.2014 - 08.2015
Exchange Engineer/Active Directory Administrator
Bendett & McHugh, P.C.
09.2011 - 04.2014
Exchange Engineer/Active Directory Administrator
Visiting Nurse & Health Services
02.2009 - 02.2011
Bachelor of Science - Management Information Systems
Central Connecticut State University