Sean Greaney's Location
Greater Chicago Area, United States, United States
Sean Greaney's Contact Details
Sean Greaney work email
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Sean Greaney phone numbers
About Sean Greaney
An accomplished information technology manager with extensive experience managing andsupporting local, national, and global enterprises over twenty years. Demonstrated successmanaging and mentoring multiple Infrastructure teams. Excellent communicator, capable of makingprofessional presentations, with emphasis on building strong team relationships, driving riskmanagement strategies, and implementing cutting-edge infrastructure solutions. Adept at aligningtechnology with business objectives and delivering high-impact results.
Sean Greaney Work Experience Details
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Director Of It InfrastructureAscendion Jun 2022 - PresentBasking Ridge, Nj, Us• Lead and oversee the IT Infrastructure team, consisting of staff and contractors in the US, India,and the UK.• Manage a complex infrastructure environment, including Windows server virtual machines inAzure, Azure Virtual Network, Azure Active Directory, Zscaler VPN, and TrendMicro intrusiondetection and email proxy.• Successfully designed and managed the infrastructure divestiture of Ascendion from CollaberaInc., including the creation of a new Active Directory environment and migration of 2000 onlineExchange mailboxes, OneDrive, SharePoint, and Teams.• Established ITSM policy following ITIL standards, Azure security policy, and Teams and SharePointgovernance and security policy.• Conducted Microsoft licensing audit and reduced annual spend by over $100K.• Directed the migration of Active Directory-based desktops to Azure AD and Intune.• Oversaw the creation of a B2B tenant to provide contractor access to internal Teams andSharePoint sites and data. -
Scuba InstructorSea Level Diving Nov 2014 - PresentTeach SCUBA in the pool, classroom, and open water.
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Senior Manager InfrastructureConsilio Llc Mar 2017 - Oct 2022Washington, Dc, Us• Managed a diverse international team responsible for over 7000 servers andinfrastructure services in the US, Europe, and Asia.• Led the implementation of Azure MFA and ITIL-compliant change management policyand process.• Implemented a risk assessment program, resulting in reduced change-related outages.• Developed IT policy for PKI and DNS and oversaw the installation of Thales HSMappliances.• Introduced a CMDB to the change and service desk system, enabling trend analysis andproblem resolution.• Led various projects, including email and Active Directory mergers, transparent migrationof data centers, and Azure B2B implementation.• Managed customer and industry security audits focusing on PKI, server hardening, patchmanagement, and security policy.• Recognized for innovation, leadership, and team-building abilities. -
Manager Software SystemsBlue Cross And Blue Shield Of Illinois Sep 2013 - Mar 2017Chicago, Il, Us• Manage a diverse multi-state team responsible for infrastructure server and appliance services.• Implemented a risk analysis program that focuses on identification of ‘worst case’ scenarios with regard to changes and the mitigation of those risks. This effort saw an immediate reduction of change related outages and no outages since 2014.• Volunteered for and managed a high assurance PKI implementation that centralizes encryption protocols and provides a highly trusted SSL certificate program on the enterprise. This effort positioned the company for data at rest and data in motion encryption to meet the requirements of large group customers and government agencies. • Currently managing a project for SSL intercept on Bluecoat and Palo Alto systems to securely analyze encrypted outbound traffic and apply policies based on content and destination. • Led the team through a successful and transparent migration of DHCP services from server based to Infoblox appliances. This set the stage for automation of IP assignments and superior management of the IPAM database making the automation requirements and future cloud implementations possible. • Worked across multiple teams to move new applications from obsolete apache reverse proxy servers to F5 appliances providing a simplified network configuration with far greater flexibility and security. • Managed the certificate based authentication project for mobile devices such as iPads, laptops, and phones to the wireless network. • Led the team through a project to bypass the forward proxy for internal web applications. The positive effects of the successful and completely transparent effort were felt immediately by infrastructure architects, application developers, and infrastructure teams and the load on the proxy servers was cut almost in half. • Managed the Infrastructure implementation of the Aruba Networks work from home rollout. -
SupervisorBlue Cross And Blue Shield Of Illinois 2006 - 2013Chicago, Il, Us• Managed a cross team transparent migration of DNS services from server based systems to enterprise class Infoblox grid appliances. The project migrated over 25,000 devices and redesigned the DNS domain structure including the consolidation of internal DNS platforms and all intranet domains and 50,000 records without incident to end users.• Managed the external DNS domain structure and created a new internal request process for internal and external DNS records management saving the company considerable time and money due to streamlining and reduced troubleshooting efforts.• Key member of a cross functional design team to implement a new data center in Fort Worth, Texas and move all systems and applications to a new simplified network.• Led a project for forward proxy migration. This project moved all 18,000 users from the Bordermanager proxy running on 20 servers to 5 Bluecoat proxy appliances. The reduced footprint simplified the forward proxy services, seeing immediate financial savings and dropped incident tickets by over 65%. • Led the project to create and maintain a network naming standard. This standard required the participation of all engineering disciplines and resulted in a naming standard to fit all network attached nodes on the enterprise including infrastructure and user devices. The standard set the stage to simplify virtually every future project including the current efforts to modernize the enterprise. Earned a corporate merit award for the successful implementation.• Project lead for several security related implementations including NMAS and universal password rollouts to all Novell servers helping to facilitate the Active Directory to eDirectory account and password synchronization.
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Senior Network EngineerBlue Cross And Blue Shield Of Illinois 2004 - 2006Chicago, Il, Us• Led the project to upgrade the Oklahoma Dirxml NDS to Active Directory drivers to IDM2 and Universal Password.• Key team member of Oklahoma merger providing the password synchronization and devised a system that allows users access to both systems without having to rename accounts. • Provided technical training to team members in LDAP, SAN, LDIF imports, schema operations, and clustering • Disaster Recovery Coordinator for infrastructure services.• Implemented Quickfind search servers to index the intranet web site.• Successfully led the enterprise migration of user data to high availability clusters in Chicago, Dallas, Albuquerque, and Tulsa.• Completed the Diversity Facilitator training and taught diversity classes from 2009 to 2011 and still maintain a presence in the Diversity program
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Senior Network EngineerRush University Medical Center 2001 - 2004Chicago, Illinois, Us• Performed a transparent deployment of Windows 2003 and Active Directory to replace the eDirectory infrastructure. • Designed, implemented and supported a new SAN using enterprise class Hitachi disk arrays connected to a Brocade fabric.• Designed and implemented Netware 6 tree with eDirectory 8.7.• Implemented DirXML for user migration to new eDirectory tree.Rush University Medical Center Continued• Configured Active Directory and setup NDS for AD including DirXML for NT.• Coordinated MacAfee Netsheild and Virus Scan in Netware and MS environment• Project Lead for Norton Antivirus deployment to Netware and Microsoft servers, workstations, Lotus Notes agents, and gateway protection.• Project Lead for disaster recovery with Arcserve 7.0.• Tested and documented a complete disaster recovery procedure for eDirectory.• Designed and installed Novell Clustering Services on Netware 5.1 and 6 with several clustered volumes and services including mirrored volumes for disaster recovery. • Implemented complete Zenworks 3.2 environment including inventory and imaging.• Team member for Netware LDAP implementation.• Implemented Account Manager on NT 4 and Active Directory.• Implemented Single Sign On for small group of users for evaluation.• Project Lead for iFolder, WebAccess, and NetStorage.• Implemented eDirectory on Sun Solaris, and Red Hat Linux. -
Senior Network EngineerUnited Airlines / Tek Systems 2001 - 2001• Design, deployment, and administration of Novell 5.1 tree• Provided third level support for over 350 Netware 3x, 4x, and 5x servers and trees, over 400 Microsoft Windows NT 4.0,• 2000 servers, 80,000+ Windows 9x, NT/2000, DOS workstations, and general network troubleshooting.; Assisted with the implementation of eDirectory and DirXML for user migrations.• Project Lead for Norton Antivirus Corporate deployment to all Netware servers.• Project Lead for consolidation of NT 4.0 servers throughout UAL.• Project Lead for implementation of centralized server database using MS Access and SQL. Design data access pages to• database on MS Windows NT 4.0 with IIS versions 4 and 5.• Assisted in the implementation of United's check-in kiosks throughout several US airports.• Assisted in the implementation of airport authentication systems using
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Systems AdministratorAdvocate Lutheran General Hospital 1999 - 2001Park Ridge, Illinois, UsResponsible for the operation, maintenance, upgrades, and administration of Novell (3, 4, and 5) servers and Windows NT (4.0 and 2000) servers on a large metropolitan area network. Responsible for Windows (DOS/95/98/NT/2000) workstations and network printers using HP JetAdmin, Intel, and Tektronics printer management software; Lead a staff of three in analysis and administration of client / server applications. Responsible for backup management and disaster recovery using ArcServe and Backup Exec. Administration of cc:Mail post office. Created desktop policies and application distribution strategies using Zen, roaming profiles, mandatory profiles, contextless logins, Office administration kits, IE administration kits, and SnappShot that have been used as the model for all of Lutheran General Hospital. Member of several corporate teams including: Windows 2000 / Active Directory design and implementation team; NDS administration team; Novell 5.1 upgrade team; desktop policy and application distribution; Lead member of Web server procurement and implementation for several new applications using Microsoft IIS 5.0 and Microsoft SQL. Provide connectivity to Unix, AS400, Lawson, Pervasive SQL, and several TCP/IP applications on an Ethernet and Token Ring environment. -
Field Service EngineerComark Jan 1998 - Jan 1999Milford, Ma, Us• Troubleshooting and repair of workstation and server hardware.• Determined client connectivity problems and provided solutions.• Assisted the sales department as a technical consultant• Team member of several NetWare and NT implementations• Managed and implemented systems projects for a number of companies• Assisted in installing LAN hardware and software• On two separate occasions, the company vice president received letters and phone calls praising my organizational skills, attention to detail, and customer service. -
Firefighter / EmtElk Grove Township Fire Department 1993 - 1997Arlington Heights, Illinois, Us• Implemented and administered Windows NT 3.51 network and upgraded to Windows NT 4• Provided fire suppression, hazmat, and ambulance service to district• Received the following state certifications: Firefighter 2; Hazardous Materials Awareness; Hazardous Materials -
Machinist'S Mate Third ClassUs Navy Feb 1989 - Feb 1993Washington, Dc, Us• Served four years active duty.• Deployed to Persian Gulf in 1992 for Operation Desert Storm / Desert Shield.• Received the following awards: National Defense Medal; Southwest Asia Medal with Bronze Star for Desert Shield / Desert Storm; Sea Service Deployment Ribbon; Battle Efficiency Ribbon.• Received Honorable Discharge in February 1993.• Promoted to Machinist’s Mate Petty Officer Third Class in 1992
Sean Greaney Skills
Active Directory
Data Center
Vendor Management
Disaster Recovery
Troubleshooting
Dhcp
Enterprise Architecture
Servers
Windows Server
Networking
Bluecoat Proxies
Management
Apache
San
Infoblox
Pki
Microsoft Certified Systems Engineer
Change Management
Policy Management
Dns
Vmware
System Deployment
Edirectory
Certified Novell Engineer
Novell Netware
Diversity Training
Windows 7
Unix
Iis
Identity And Access Management
Ldap Administration
Tcp/ip
Hardware
Windows Ser
Novell
Navy
Ftp
Risk Management
Sean Greaney Education Details
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Mchenry County CollegeMathematics
Frequently Asked Questions about Sean Greaney
What company does Sean Greaney work for?
Sean Greaney works for Ascendion
What is Sean Greaney's role at the current company?
Sean Greaney's current role is IT Infrastructure Director at Ascendion.
What is Sean Greaney's email address?
Sean Greaney's email address is sg****@****lio.com
What is Sean Greaney's direct phone number?
Sean Greaney's direct phone number is +120282*****
What schools did Sean Greaney attend?
Sean Greaney attended Mchenry County College.
What skills is Sean Greaney known for?
Sean Greaney has skills like Active Directory, Data Center, Vendor Management, Disaster Recovery, Troubleshooting, Dhcp, Enterprise Architecture, Servers, Windows Server, Networking, Bluecoat Proxies, Management.
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