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Engineer Active Directory

Edison, New Jersey, United States
January 04, 2019

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Luis Hernandez Duluth, Georgia ' 347-***-****


Turning demand into growth, technology into value

Outstanding leader with over 15 years of progressively challenging IT experience consistently exceeding desired outcomes. Able to clearly translate complex issues into actionable plans aligned to short and long-term requirements. Uphold highest quality standards. Effectively evaluate and proactively manage performance against relevant benchmarks. Thrive under pressure. An autonomous self-starter and exceptional team player. Possess outstanding infrastructure and Windows administration skills. Seasoned Windows administrator. Windows, Virtualization and storage specialist.

Core competencies include: Project Management • Strategic & Tactical Planning • Budgeting • Staff Training & Development • Resource Management • Vendor Relations • Compliance • Policy & Procedural Development • Customer Service • System Development • Security / Disaster Recovery


ITIL v3 • CCENT • MCSE + Internet NT4 • MCP Windows Server 2000 • MCSA Windows Server 2003 • MCTS Windows Server 2008 • MCSA/MCITP Enterprise Administrator Windows Server 2008 • Certified Citrix Administrator 4.5, XenApp 5/6.5, CCA-V/CCP-V XenApp 7.6, CCA-N/CCP-N Network/NetScaler 10.x • VMWare VCP 4.01, VCP 5, VCP 6.x • VTSP 4.01 • Dell Equallogic SAN Administrator • CET • FCC (GROL). Pending: CCNA/CCNP Route & Switching, and Project Management.


Sr Citrix Engineer (Citrix/Windows/VMWare/Hyper-V) 10/2018 – Present

PruittHealth Norcross GA

Ensured the stability, integrity, and efficient operation of the in-house information systems that support

core organizational functions. This was achieved by monitoring, maintaining, supporting, and optimizing

all networked software and associated operating systems. Applied proven communication, analytical, and

problem-solving skills to help identify, communicate, and resolve issues in order to maximize the benefit

of IT systems investments.

Managed Citrix, print servers and their associated operating systems and software.

Administration/support Citrix XenApp multiple environments, 5/6/7 farms.

XenApp configuration, Xen Desktop, Provisioning Server, and hypervisor (VMware / Hyper-V).

Administering Citrix Provisioning Services (PVS) 7.x or later versions.

Familiar with Appsense (Ivanti) Environment Manager and Performance Manager.

Maintain and support of Group Policies.

Farm and Servers Reports / Maintenance in preparation for software updates/deployments.

Collaborate with network staff to ensure smooth and reliable operation of software and systems for fulfilling business objectives and processes.

Sr Systems Engineer (Citrix/Windows) 10/2016 – 10/2018

First Republic Bank New York NY

As part of a team of 4 Citrix SME Engineers, maintained and revamped Citrix XenApp 6.5 environments, migrating to XenApp 7.9 (multiple production and test farms) and with over 200 servers. Project Management: migrated 25 applications in 37 desktops to our production environments. Worked with vendors on multiple Citrix projects. Participated in change control meetings, Disaster Recovery, testing failover/failback applications and infrastructure. Used Service Now ticketing system for support and infrastructure changes/requests. Obtained company training for compliance. Replaced Citrix external secure portal with EV ssl certificates using Netscalers and StoreFront servers. Technical learning: Layer 8 XenApp 7.x training. Completed Citrix Application Virtualization and NetScaler certifications: CCA-V XenApp 7.6, CCP-V XenApp 7.6, CCA-N, CCP-N, NetScaler 10.x, VMWare VCP 6 and ITIL v3. Familiar with Citrix PVS, App-V and NetScaler 10/11/12. Trained other engineers in company Citrix Infrastructure.

Sr Windows Administrator (Citrix/VMware/AD/Exchange) 3/2016 – 10/2016


Responsible for 8 Citrix farms (Presentation Server 4.5, XenApp 6/6.5). Administration, engineering and documentation of Citrix infrastructure. Part of a team that manages Active Directory, Microsoft Exchange 2010, EMC storage, VMware 6.0, Cisco UCS and Solar Winds monitoring. Familiar with F5 Load Balancers. Currently planning/documenting/migrating/simplifying current Citrix farms to new infrastructure with high availability Netscalers 11.0 with StoreFront 3.5.

Sr Systems Engineer (VMWare/Web/EMC SAN/RACKSPACE) 12/2015 – 3/2016 New York City

As part of a 6-member team, manage two Active Directory Infrastructures (Production/Development), Company and customers’ site using F5 load balancers, EMC VNX 5200, monitoring tools such as New Relic, Catchpoint, Google Apps/Docs/E-Mail and Rackspace hosted environment. On-call rotation on schedule using Pager Duty.

Sr Systems Engineer (VMWare/Citrix) 5/2015 – 12/2015

Hospital Physician Partners Fort Lauderdale Florida

Managed Active Directory/Windows (DNS/DHCP), and VMWare 5.x infrastructure in 3-man team. Administration of 4 Citrix XenApp 6.5 servers. Securely deployed XenApp 7.6 architecture (group policies, user profile manager (roaming and folder redirection), StoreFront, Citrix Director, and Studio highly available. Migrated applications to new XenApp 7.6 infrastructure. Upgrade XenApp 7.6 infrastructure from Windows Server 2008R2 to Windows 2012R2. Traveled to company sites and datacenters for Disaster Recovery/Business Continuity situations and implementations. Trained level II and level II staff to help support Citrix for internal and external clients. Helped deployed and supported Citrix NetScalers 11.0. Managed 5 SANS (2 FAS2050 - 10TB, 2 HP P2000 G3 MSA - 35TB, 1 FAS-2554 - 100TB).

Sr Windows Administrator (Citrix/VMware/AD) 1/2015 – 5/2015


Responsible for 8 Citrix farms (Presentation Server 4.5, XenApp 6/6.5). Administration, engineering and documentation of Citrix infrastructure. Part of a team that manages Active Directory, Microsoft Exchange 2010, EMC storage, VMware 5/5.5, Cisco UCS and Solar Winds monitoring. Familiar with F5 Load Balancers.

AVP Network/Systems Engineer (VMware/Citrix) 5/2014 – 1/2015

Hudson Valley Bank New York City

Managed/Administered all aspects of VMware ESXi 5.0/5.5 (7 hosts, over 100 virtual machines), Dell SAN and Windows 2003/2008/2008R2/2012/2012R2 Infrastructure (Active Directory, DHCP, DNS), Exchange 2010, Systems/internal, external (financial and web) applications/Network/Datacenter Migration. Provided help and support for Cisco equipment configuration (switches: 3750/3850, Firewall: ASA 5505, Iron Port), and other equipment such as Barracuda Web Filter/Web Application appliance, and a wide range of internal/external applications. Administered and helped stabilize a 30 Citrix XenApp 6.5 servers farm (30 virtual application servers). Dell iSCSI Equallogic SAN Administration. Project Management and Vendor/External project/datacenter migration management.

Sr. Systems Engineer (VMWare 4.x/5.x) 3/2013 – 05/2014

Worldnow (MSP) New York City

As part of a 6 men team, provided support to company infrastructure of about 100 physical Dell servers, about 30 VMWare ESX (i) 4/5 hosts and about 200 virtual servers located in company’s datacenter and disaster recovery sites. Managed all aspects of Active Directory (manual and scripting), Group Policy, DNS, FTP, Web server administration/engineering: Windows 2000, 2003, and 2008 servers. Built, migrated and decommissioned legacy systems. Administered two EMC Clariion CX-4 SANs (Production/Development). Helped and mentored other team members. Occasional travel to company’s datacenter site (SAVVIS located in Weehawken NJ) to implement/decommission new and legacy systems. Administration and migration of over 400 client hosted DNS zones. Disaster Recovery site: Internap – Dallas, Texas.

Sr. Windows Administrator (Active Directory) 1/2013 – 3/2013

Louis Dreyfus Commodities LLC Danbury, Connecticut

Administered Active Directory in a global environment. Worked in a 4 men team to support company infrastructure. Documented North America, South America, and Central American Active Directory replication topology using Microsoft Visio. Started the process to resolve Active Directory replication issues. Installed, configured Windows 2008 servers, Domain Controllers. Installed/configured HP DL series servers.

Systems Manager (VMware 4.x/Citrix XenApp 6.x) 3/2012 – 1/2013

Albert Einstein College of Medicine of Yeshiva University Bronx, New York

Department of Epidemiology and Population Health

Responsible for two Windows domain (2003/2008) infrastructures of 40 virtual machines and 3 Dell Power Edge VMWare VSphere ESX 4.1 servers, 6 Citrix XenApp servers, EMC AX4-5F Fiber SAN with Brocade switches, Windows Storage Server 2008 server (iSCSI SAN), and Dell Desktops/SONY laptops. Backup solution included VMWare VDR and Symantec Backup Exec 2010/2012 media servers. Worked with vendors to obtain quotes for purchasing equipment. Implemented, maintained, and inventory of department assets, licensing for all equipment and software infrastructure. Supported Cisco 5510 ASA firewall. Implemented UCC SSL Certificate to Web/SharePoint 2007/2010 servers to help the organization save about $3,000. Managed SharePoint 2007/2010 servers. Documented and provided solutions that strengthened core infrastructure. Managed and trained intern to support level I tasks.

Systems Administrator (VMware 4.x/Citrix XenApp 6.x) 10/2011 - 3/2012

Jamaica Hospital Medical Center Queens, New York

As part of a 10-member infrastructure team as a Systems Administrator assisted the Storage Engineer (EMC), Microsoft Windows 2003 Active Directory, VMWare VSphere 4 and Citrix XenApp 6 Engineers. Worked closely with Cisco Engineers to enable LAN connectivity to hospital infrastructure. Setup Citrix environments for company trainers. Supported and traveled to hospital's clinics to resolve infrastructure problems.

Senior Systems Analyst 11/2009 - 10/2011

Hudson Health Plan Tarrytown, New York

Provide focused and effective Systems and Windows Active Directory leadership, as well as assisting internal teams with a wide range of Telecommunications and IT infrastructure functions. Interface closely with telecommunications and other personnel to develop timely and effective solutions for level I and II issues. Continually evaluate network functionality and provide insights and strategies to increase performance, and lower costs. Weekly travel to maintain company disaster recovery site located in New Jersey.

Administer a 300+ node, Windows 2003/2008 Active Directory network and 40 TB HP 4400 EVA SAN and 7TB EVA 5000 SAN. Support user requirements through prompt troubleshooting, training, software and hardware installations and configurations.

Architected and built at budget and on time a 2-node Exchange 2003 cluster to move existing Exchange infrastructure over 2 HP EVA SANs.

Additional duties include administering and providing software deployment solutions using Windows Group Policy and DFS.

Implemented and administered HP P2000 G3 iSCSI SAN with VMware ESXi 4 infrastructure.

Senior Active Directory Engineer 3/2009 – 11/2009

1800 Flowers Inc. Long Island, New York

Led efforts administering a 250-server Active Directory/network infrastructure to ensure high availability services to meet both routine and mission-critical requirements. Interfaced with users on a daily basis to resolve issues, install and update applications and hardware. Ensured full compliance with software licensing agreements. Maintained Windows 2003 Active Directory using scripts for massive account management.

Assisted in administering 40+ Citrix servers and maintained Windows DFS infrastructure. Projects included adding Apple Server to Active Directory Infrastructure and JBOD (NAS) deployment. Provided 24/7 support, and served on-call 1 week per month. Helped maintain server infrastructure to ensure PCI compliance.

Network Administrator / Server Support Engineer 6/2007 – 3/2009

Li & Fung USA, LLC New York, New York

Served in a key role on the 5-member Active Directory/infrastructure team assigned to a wide range of IT development and management projects. Effectively administered a 2000 node Windows 2000/2003 Active Directory network. Supported Mac and Windows desktops and servers. Installed and supported a wide range of applications that included Symantec Antivirus Corporate 10.1 and Symantec Backup Exec 10/11d for security and data backup requirements. Supported an 8-server Citrix infrastructure, remote backup sites, and consulted and supported level I/II staff. Provided level III infrastructure support, and offered deep knowledge and experience to consistently develop unique solutions to address mission-critical application support and deployment requirements that included virtualizing servers.

Setup, configured and tested HP/Compaq servers using ILO and Rapid Deployment Altiris and Symantec Ghost, and maintained servers.

Supported merger and acquisition as part of a team migrating acquired company data to the current infrastructure, and migrating Inter-org Exchange 2003 mailboxes to Exchange 2007 server.

Setup a training infrastructure with minimal oversight to provide deployment training resulting in a $20,000 cost savings in implementation.

Network Engineer Level II 1/2006 – 6/2007

Intrasphere Technologies New York, New York

Proactively maintained and administered a Windows 2003 Active Directory network that included Active Directory, DFS, DHCP, WINS, DNS, Exchange 2003, Blackberry, and VPN. Backed up and administered intranet IIS servers.

Technologies administered and supported included ICS/Norstar telephone system and HP/Xerox printers/scanners. Applications utilized included Symantec Ghost, Symantec / Trend Micro Antivirus, VMWare Workstation, IP Monitor, WebEx, and Veritus Backup Exec 9.1.

Served in a customer facing role at the help desk. Identified and resolved user issues in a timely manner, escalated issues as required, and performed remote and on-site training and support to all users.

Network Support Specialist 7/2005 – 1/2006

NYC Human Resources Administration Brooklyn, New York

Ensured superior customer service and support. Installed, configured, and supported WINS/DNS/DHCP/WINS/Domain Controllers in a Windows 2003 Active Directory sub-netted environment, configured and installed Compaq/HP servers, and maintained 2000 SMS 2003 severs.

Served on the SMS 2003 team, a $3 Million project deploying Windows 2003 Distribution servers totaling 3,000 nodes to multiple sites. Setup test network infrastructure for testing SMS deployments, and trained team members.

Primary Data Security / Network Administrator / Support Tech / Help Desk 1/2002 – 7/2005

Bank of New York Mortgage / Everbank Brooklyn, New York

Consistently met and exceeded expectations for financial network reliability and security. Administered user accounts, assigned passwords and access levels, and monitored network to ensure data integrity and to resolve issues that included network violations. Configured and supported wireless hardware such as routers, access points, laptops, and a large number of handheld devices.

Configured and maintained company laptops from various manufacturers remotely using RA, VNC, Novell Console and PC Anywhere.

Managed helpdesk and field-based employees for both wired and wireless computers, servers, and other network and standalone technologies, and collaborated with developers to design and implement helpdesk administration systems and to upgrade and maintain corporate websites.

Support Engineer / Network Analyst 1/2000 – 1/2002

On-Site Trading Queens, New York

Worked alone and collaborated with key management and technical personnel supporting real-time traders in a Windows NT 4/2000/9x operating environment. Configured and administered routers, hubs, switches, handheld devices, and home-based wireless networks. Engineering and architecture of the IT infrastructure.

Architected and implemented solutions that helped to save the company in excess of $100 Thousand per month.

Developed and implemented a Windows NT 4 domain infrastructure using WINS, DHCP, FTP, File Servers, Database servers and real-time trading applications.


BS – Information Technology Management 2011

Keiser University Fort Lauderdale, Florida

Honor Role • 3.82 GPA • Entire program • Magna Cum Laude

Sigma Beta Delta - Graduated top twenty percent of my class.

Associate of Occupational Studies Degree – Telecommunications 1999

Technical Career Institute New York, New York

Presidential Scholar, 3.78 GPA • Honor Role, entire program

Associates of Science – Computer Engineering 1995

Keiser College of Technology Melbourne, Florida

Additional courses, seminars and workshops include: Global Knowledge: VMware vSphere: Install, Configure, manage; certified VCP 4.01/VCP 5/VCP 6 • Exceed Education & Training: 3-day Dell Equallogic SAN Administration workshop; certified Equallogic SAN Administrator • Learning Tree: SharePoint 2010 Administration training. MBI: Cisco 2500/2600/3600/4000/7000 router configuration • New Horizons: 2-day Microsoft Exchange 2007 server workshop, 5-day Citrix Presentation Server 4.5 class; CCA 4.5/6, CCA-V, CCA-P XenApp 7.x, CCA-N, CCP-N NetScaler certified. SharePoint 2010 Administration – Learning Tree. MCSE from Windows NT4 to MCITP EA Windows 2008 R2.

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