DARREN R. GREER
180 ROCKCREEK DR, SAINT JOHNS, FL 32259
M: 904.222.8072 w M: 904.826.5176			darren.greer@gmail.com
Leadership Profile	Practiced leader with over 20 years of experience, managing multiple disparate IT operations including: Software Development, Third Party Software Implementations, Offshore and Right-shore Models, Infrastructure Management, Client Desktop Operations, Virtual Desktop Computing, Reporting and Analytics, Architecture and Design, and Production Support Operations. A truly passionate technologist, exploring new technology in and out of the office, seeking new ways to solve day-to-day challenges with intelligent IT solutions.
Areas of Expertise	· Global Operations Management · Desktop/Application Virtualization · Program/Project Management · SDLC & Agile Process Management · Vendor Relationship Management · Budget Management & Cost Optimization · Client/Customer Relationship Management · IT People Management & Coaching/Mentoring · Process Re-Engineering · Enterprise Architecture & Engineering · Virtual Desktop Computing Management · Application Portfolio Management	· Six Sigma Green Belt Certified · Outsourcing: Off-shoring & Right-shoring · Team Integration and Reorganization · Managed Service Implementation · Production Support · ITIL Process Management · Platform Stability/Reliability Management · Cloud Services Implementation & Management · Continual Service Improvement · Enterprise Application Integration · Reporting/Analytics Strategies · Project and Portfolio Management
Professional History	Rego Consulting, Practice Lead /Solutions Consultant, Florida Application Portfolio Management (APM) Architect, responsible for leading client implementations of ServiceNow APM/CMDB/Software Asset Management, overseeing workshop, design, requirements gathering, development, and implementation. Led the formation of a dedicated practice, focused on Reporting/Analytics standards, development, and training within the organization and expanded to Rego Consulting client services. Member of a core team that partnered with ServiceNow, architecting a next generation Application Portfolio Management suite of applications for ServiceNow PPS. · Responsible for leading client implementations of Application Portfolio Management, utilizing ServiceNow APM/CMDB and Software Asset Management · Established a new practice, focused on developing reporting and analytic standards, and developing internal/external training programs · Built, and Led, a global team of expert report developers and trainers, using newly established training programs, which has executed successfully on over 50 client SOWs · Key member of a focus team, partnering with ServiceNow on the architecture and design of their newly released Application Portfolio Management suite to integrate with their existing PPS and ITSM suite of products			2015-Present
	The Nielsen Company, IT Director – Big Data Platforms, Florida Leading the architecture, design, development and operational support of a new Big Data Analytics platform. Leading a team of over 50 developers, architects and service delivery personnel, to implement from the ground up a new big data analytics solution to service all of Nielsen Buy practices. · Led a team of architects to design and implement a new Big Data platform based on Hadoop (Cloudera) and other associated technologies (Spark, MapReduce, Java, Hive, Impala) · Worked closely with business partners to identify key revenue growth areas, to target next-gen analytical models at a scale not previously capable with legacy technologies. This new growth opportunity is targeting ~$75 Million in additional revenue over the next 3 years Built a service delivery organization from the ground up, utilizing ITIL as a starting framework, to support the creation of a Hadoop Center of Excellence, which will grow to support all Hadoop environments within Nielsen Buy			2013-2015
	Rego Consulting, Infrastructure Director/Solutions Consultant, Florida Led all IT Operations servicing over 50 consultants in support of nearly 5oo external clients. Focused on the architecture, implementation and customization of CA Clarity within client environments. · Led multiple implementation and upgrade programs of CA Clarity PPM solutions across a wide variety of IT infrastructure environments · Developed ground-up plans for an Enterprise class cloud hosting solution for CA Clarity PPM and Oracle services · Extended CA Clarity PPM core functionality through the architecture/design of enhanced Add-Ons			2012-2013
	Citigroup, Director – Global Application Services, Florida Led the formation of a new team, focused on Application and User Profiling services, comprised of over 100 team members, whose primary focus is around Windows 7/Citrix application, and user, migrations for over 8,000 applications and 350,000 clients · Integrated 5 disparate teams into one cohesive organization, defining and implementing operating models that will increase total output globally · Responsible for ensuring platform readiness for over 8,000 applications, comprised of both internally developed and third party applications · Built strategic relationships with internal development teams, allowing the team to establish project plans for Windows 7/Citrix application readiness of all 8,000 applications within 18 months · Established a managed service model for application streaming creation activities with an outside vendor, adopting a “pay-per-drink” model, reducing time-to-market whilst simultaneously reducing internal costs · Working with internal development teams, developed a suite of tools, that collect client, device, and application feeds, then generate user profiles and priority matrices critical to Windows 7/Citrix/VMware migration plans · Led the creation of a new service, using third party tools, which produces application compatibility reports, greatly reducing developer time on task, and increased application packaging success rates.			2011-2012
	Citigroup, Senior Vice President / Director – Global Server Based Computing, Florida Leading one of the worlds largest implementations of both Citrix and VMware virtual desktop solutions, achieved global standardization and implemented global support models · Led a global staff of over 40 infrastructure specialists, supporting nearly 160,000 clients and nearly 8,000 edge devices · Managed a full-suite of third-party application platforms built in support of our global virtual desktop solutions (Citrix, VMware, AppSense, ThinPrint, Wyse, EG, ThinApp), across over 3,000 servers · Drove negotiations with several key vendors, resulting in over $24 million dollars in cost avoidance on license and support costs · Increased platform availability, by instituting a globally consistent support model, coupled with consistent configuration standards, which resulted in a ~50% reduction in support incidents across the platform · Achieved over $3 million dollars in infrastructure cost saves through an aggressive approach to virtualize servers used to support Citrix desktop solutions · Delivered an increase of nearly $13 million dollars in internal chargebacks through the establishment of focused asset tracking for VMware hosted desktops · Reduced internal client chargebacks by ~60% as result of efforts to improve platform optimization, off-shore support models, and platform availability · Implemented an application virtualization/streaming solution (ThinApp), which has resulted in over $1 million dollars in direct cost avoidance by eliminating requirements for application servers · Partnered with Wyse, developing a new “mobile” thin client, with integrated VOIP and VPN capabilities, allowing ~6,000 call center agents to work out of their homes, yielding $2 million in operational cost saves			2008-2011
Professional History	Citigroup, Senior Manager – Enterprise Services, Florida Led a team of engineers and administrators through the implementation of strategic software platforms providing Identity Management, Collaboration, Asset and Service Desk solutions to all Consumer businesses within Citigroup · Reduced level one help desk volume by nearly 60% with the implementation of an automated password and identity verification system, supporting over 80,000 clients · Established key relationships and solid operational practices between technology and front-office organizations, facilitating enhanced client-focused delivery of technology solutions · Managed the ground-up implementation of a full-suite of collaboration tools (SharePoint / LCS), capable of supporting 50,000 concurrent clients · Led the implementation of HP’s OpenView Service Center application suite, and subsequent efforts to consolidate request and incident queues from 3 disparate systems into one · Partnered with Cards front-office phone support teams, along with corporate engineering, with the implementation of automated account provisioning services, designed to automate ~30,000 monthly account actions			2005-2007
	GE Healthcare, Operations Manager - Common Applications, Wisconsin Oversaw operations of Common Applications technologies, which included: Provisioning Collaboration and Web Services technologies · Led the implementation of Niku (CA Clarity PPM) to support over 1,000 IT employees and the DMADV/DMAIC processes used to execute all projects · Implemented a global, follow-the-sun support model, providing 24x7 support coverage for critical IT platforms and services · Balanced a $5.3 million dollar annual budget, correcting a historic 30% over-run · Oversaw license and maintenance negotiations for planned automated discovery software platform, netting a 60% discount on license and support costs · Ensured 99.999% web services availability for critical customer facing web components, which received over 1 million average daily transactions · Managed the web technology implementation of a $500,000 accounts receivables system within six months · Led a strategic initiative to increase application availability, netting a 5% increase in uptime · Designed and implemented a global single sign-on solution using SiteMinder technologies, engineered with built-in, automatic, fail-over capabilities			2004-2005
	GE Healthcare, Project Manager - Common Applications, Wisconsin · Managed support operations of Global Web Services platforms, consisting of over 300 applications · Oversaw support operations of Global Single Sign-On platforms, averaging 4 million daily transactions · Assisted developers in the validation and testing of applications within Java and ColdFusion environments · Provided support operations leadership, to the technology command center organization, for critical application services during quarterly closing activities			2002-2004
	GE Healthcare, Architect - Web Solutions, Wisconsin · Led the implementation, support operations, and development lifecycle processes for several web technologies (ColdFusion, JRun, BEA Weblogic, F5) · Built a new web technology support team using an off-shore support model, designed to provide 24x7 coverage for all critical web services			2000-2002
	Trivera Interactive, Development/Ops Manager – IT Operations, Wisconsin · Led all application development and IT operations for web development startup · Assisted the sales organization in field sales operations, providing architecture and design proposals for current and potential clients			1999-2000
	Quad Tech Int., Systems Administration – Systems Operations, Wisconsin · Systems administration for HPUX and VAX VMS server farms · Development of manufacturing operational reports using Cognos reporting technologies · Production support operations analyst for critical manufacturing systems			1997-1999
Education	B.S., Computer Science – Information Systems, Carroll University, Waukesha, WI Six Sigma Green Belt Certification – GE Healthcare			2000 2002