JOHN SLIMAN
*** ******** *****, ******, ************, 17517 * 484-***-**** * ***********@*****.***
PROFESSIONAL SUMMARY
I am a certified professional with 29 years of experience in Microsoft technologies with a proven track record to troubleshoot and resolve complex technical issues in a timely manner. I bring a wealth of knowledge, experience, and advanced problem-solving skills to identify, communicate and resolve issues.
TECHNICAL SUMMARY
Senior messaging and systems engineer with strong experience managing windows and exchange server infrastructures and data-center operations across platforms. Effectively plan, install, configure and optimize Microsoft infrastructures to achieve high availability and performance. I have extensive experience in all Microsoft exchange and windows environments.
Certifications include Microsoft certified systems engineer, certified information systems security professional and Citrix certified administrator (MCSE, CISSP, CCA)
WORK EXPERIENCE
Foot Locker Inc.
Senior Unified Collaboration Engineer, 2018-Present
Lead Senior Unified Collaboration Engineer for Exchange 2016, 2019 on premise server implementation and administration to support Microsoft 365 Exchange Online migration.
Lead Senior Systems Engineer for Lotus Notes on premise to Microsoft 365 Exchange online migration and mentor other engineers in multiple departments to comply with Exchange best practices.
Windows 2003, 2008R2, 2012R2, 2016, and 2019 Active Directory Domain Administration, including Forest and Domain level upgrades, split brain DNS, and Group Policy administration.
Azure Active Directory Administration.
Microsoft Active Directory PKI Certificate Services administration.
Lead Senior Unified Collaboration Engineer for Authenticated SMTP migration project to Office 365 for all Foot Locker global applications. Configure Exchange DLP, Conditional Access policies, and email litigation holds.
ProofPoint email security gateway administration.
PowerShell scripting.
Crane Payment Innovations
Senior Systems Engineer, 2018
Exchange 5.5, 2003, 2010 and 2016 architecture, design, and administration.
Azure Active Directory administration.
Windows 2003, 2008R2, 2012, 2016, and 2019 Active Directory Domain Administration, including Forest and Domain level upgrades, split brain DNS, and Group Policy administration.
Microsoft Active Directory PKI Certificate Services administration.
Pennsylvania Turnpike Commission, Middletown, PA
Senior Systems Engineer, 2004 - 2017
Exchange 5.5, 2003, 2010, 2016 architecture, design, and administration.
Lead Senior Network Engineer for implementation of Exchange 2010/2016 multi-site DAG in a hybrid configuration, performed Exchange 2010 to Microsoft 365 Exchange Online mailbox migrations for entire organization.
Lead Senior Systems Engineer for Active Directory and Exchange Server 2010/2016 hybrid configuration implementation and Disaster Recovery failover planning and testing.
Azure Active Directory administration.
Mimecast Email Security Services administration.
Azure Active Directory administration.
Microsoft ADFS administration, configure SSO for 3rd party applications.
Windows 2003, 2008, 2012, 2016, and 2019 Active Directory Domain Administration, including Forest and Domain level upgrades, split brain DNS, and Group Policy administration.
Microsoft IIS administration.
Microsoft Active Directory PKI Certificate Services implementation and administration.
Trend Micro Enterprise Security Suite implementation and administration.
Globalscape EFT Server – Secure File Transfer Protocol implementation and administration.
AirWatch MDM administration.
Infoblox administration.
SolarWinds Orion administration.
VMware vSphere administration.
Microsoft SQL 2005, 2008, 2012 and 2016 Server Administration
Service-Now – manage help desk tickets using ITIL Service Management software.
Exchange Server security patch deployment using SCCM.
SAP Basis Administration for 4+ years.
Transcore, Harrisburg, PA
Manager of Network Technologies for Pennsylvania Turnpike Commission, 1998 – 2004
Managed the implementation of a secure, 90+ remote site, Wide Area Network for the Pennsylvania Turnpike Commission.
Managed the installation of servers, routers, switches and media converters and all related network equipment for 90+ remote locations.
Managed the hardware, software, installation and configuration for over 100 HP Servers.
Implement and manage HP Open View Network Node Manager
Managed Microsoft Windows NT 4.0 Rapid Deployment Program in place upgrade to Windows 2003 Active Directory domain.
Citix MetaFrame 1.8 and Citrix XP administration.
Windows 2003 and Exchange 5.5 administration.
EDUCATION
RETS Education Center, Broomall, PA
Network Technologies
1994 - 1995
CREDENTIALS AND LICENSES
CISSP – Certified Information Systems Security Professional
MCSE – Microsoft Certified Systems Engineer
CCA – Certified Citrix Administrator