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Senior Systems Engineer Resume

Irving, TexaS

PROFESSIONAL EXPERIENCE

Confidential, Irving, Texas

Senior Systems Engineer

Responsibilities:

  • Migrated legacy 2008R2 RDS Citrix Shared Desktop and XenApp PVS images to Server 2016. 2008R2 legacy infrastructure posed a risk to the organization.
  • Ported/Migrated business applications and dependencies from 2008R2 RDS to Server 2016 RDS Citrix XenApp and Shared Desktop is leveraging Citrix Provisioning Services. Dual data center design and autonomous Citrix Site infrastructure components and leveraging NetScaler, GSLB, HA active/active design.
  • Streamlined PVS Master Disk images, process, procedure, optimization scripts, seal scripts - Powershell.
  • Reverse engineered multiple applications and dependencies with missing installation packages and no documentation. Leveraging tools such as System Internals process monitor, process explorer, and Windbg and cloud-hosted Microsoft Symbols to debug applications in a dedicated development environment and production to determine dependencies, registry keys, DLLs, and all components necessary to port the application from 2008R2 legacy systems to Server 2016.
  • Leverage a combination of FSLogix, Citrix Confidential, Citrix FMA Policies, PowerShell, Citrix PVS, Citrix Group Policies, Active Directory Group Policies, Group Policy Preferences, Active Directory OU structured design, AD Groups for controlled access, Roaming Profiles, Redirected Folders, and best practices to provide streamlined and secure access to hosted business applications.
  • Multiple silos, general published applications, SAP, SAS, Red Prairie, and shared VDI desktop images migrated to streamlined and optimized Citrix Provisioning Server images and replicated between two physical data centers. Active-Active. Citrix SDX NetScaler - GSLB.
  • Wrote PowerShell optimization script for server 2016 and post-optimization PVS seal script and documentation of best practice procedure to create and deploy Server 2016 PVS images.
  • Created custom reports leveraging ODATA, SQL Query, PowerShell, and Excel with Pivot Table and Charts that provide an aggregate of two sites: peak usage and performance statistics.
  • Best Practices, Procedures, Knowledge Base, Request for Change, Firewall Requests, Process Flows, Visio (LucidChart) Diagrams, and retrofitted custom templates for IT Documentation initiative.
  • Holistic infrastructure documentation to map all infrastructure relationships, processes, and communication between systems. To map existing and any future changes which allow our Infrastructure team to review quickly and future proposed changes.
  • Created a custom logo using SnagIT and various approved corporate logos for purposes of standardizing all IT documentation.
  • Created Word and Excel Templates, with custom formatting and logo, to standardize documentation for Information Technology.
  • Proposed, wrote, implemented - Citrix Application Lifecycle Management Methodology (CALMM) to address a critical gap between platform upgrades and line of business application owners adhering to the "Agile" methodology.
  • CALMM addresses the growing complexity of hosting business-critical applications where each new application introduces additional complexity. The underlying core infrastructure must adhere to a strict upgrade schedule that aligns with both Microsoft and Citrix cumulative updates, feature releases, and security patching.
  • Migration to new versions of the Microsoft operating system and, in parallel, upgrading the Citrix platform requires the business applications, leveraging both platforms, must adhere to the same principle.
  • The Citrix platform and underlying operating system upgrades are inevitable, and the business applications that wish to remain supported and functional must adopt an Agile methodology of cross-functional collaboration that coincide with Citrix platform upgrade projects.Otherwise, each platform migration is at risk of losing vendor support, and the worst case can cease to function as it is no longer compatible. It requires a paradigm shift in thinking where change is a "must-have," not a "nice to have."
  • Cost - change management is a cost avoidance strategy. The longer you wait, the more it costs, and the greater the risk.
  • Outdated software decreases security posture and increases the potential of system downtime. The repercussions: cost of recovery, dissatisfied customers, lost revenues, lost employee productivity, overtime costs to meet deadlines after failure.
  • Old versus new - failure to upgrade business applications prohibit new, advanced capabilities and creates a risk to the business as a loss of revenue to the competition and productivity. Delaying the inevitable increases operational and support costs.
  • Key resource in the planning and deployment of Cisco AMP and Cisco Carbon Black to Infrastructure and Citrix PVS Images as part of a holistic security posture upgrade initiative.
  • Key resource in the planning and deployment of DUO MFA for Citrix external users. Internal DUO Proxies, Radius, LDAP, NetScaler configuration.
  • Key resource in deploying DUO for Windows Logon and RDP to Infrastructure servers and Citrix PVS images enforcing MFA to mitigate risks to the organization.
  • Critical resource in the planning and documentation using Wireshark to ascertain ingress and egress traffic for Infrastructure servers relative to Internet access requirements. The assessment was comparative to the least privileged methodology and part of a holistic security posture assessment and compliance.
  • Wrote strategic, best practices documentation related to the install and use of WireShark on Server 2016 for capturing network traffic.
  • Designed/wrote detailed Firewall Request Form for distribution and use to business application owners to document firewall rule requirements. Excel form, instructions tab, ports and protocols, and relevant RFC references, guidelines, and examples.
  • Provided technical review and recommendation to application owners to assure the accuracy of the RFC and so it would meet the requirements and pass the scrutiny of the Change Review Committee and prevent delays in the approval process.
  • Provided guidance and advice, as requested, to other members of IT unfamiliar with the use of Wireshark and new mandates required specific IP addresses, ports, and protocols defined versus wildcards.
  • Reviewed and tuned Citrix Policies to ensure alignment of the intended security posture
  • Implemented SSL encryption of internal and external Secure Gateway traffic of XML and Secure Ticket Authorities - NetScaler <> Delivery Controllers | StoreFront <> Delivery Controllers

Confidential

Senior Systems Engineer

Responsibilities:

  • Inline upgrade of 4.7 to 2006 completed without user impact
  • Infrastructure and agents with NetScaler LB VIP between two data centers - HA
  • Wrote project plan, leveraged sandbox environment to tweak project plan
  • Introduced and leverage concepts of “Containers” in Confidential - not used previously
  • Confidential is a powerful asset when configured and utilized properly. To leverage the advanced functionality requires debugging and observation of the existing production environment in order to ascertain what tweaks are required - in the first place.
  • Confidential Containers allow for separation of the “Silo’s” and customization for session hosts versus VDI where only one container had been used prior.

Confidential

Senior Citrix Consultant

Responsibilities:

  • Design, plan, migrate and consolidate to a highly available virtual server, VDI, and Cloud
  • Skilled in vendor assessment, comparison, and contract negotiation
  • Infrastructure security assessments, server hardening, and firewall vendor assessment
  • Expertise with delivery on challenging, complex projects regardless of technology.
  • Networking, documentation, advanced troubleshooting, specifications, emerging technologies
  • Performance Analysis, Test Plans, Reporting, Scripting, continuous process improvement
  • Proven problem-solving skills, established track record, excellent communication
  • Security assessments, strategic security posture analysis, and remediation

Confidential

Senior Systems Engineer

Responsibilities:

  • Designed and implemented Citrix 7.15 LTSR high availability architecture consisting of Netscaler, XenApp, XenDesktop, StoreFront, PVS, Director, Delivery Controllers, LDAP, XML, STA, DHCP, SQL
  • Designed and implemented Microsoft 2016 Server Basic Availability Groups
  • Active/Active datacenter with Global load-balancing between two HA datacenters leveraging Citrix Netscaler
  • Subject matter expert for all Active Directory changes relative to implementing and upgrading Citrix. Coordinated all Active Directory changes with IT Security Team.
  • SQL 2016 design and implementation is leveraging "Basic Availability Groups" to host Citrix databases.
  • They were designed and implemented Server 2016 Storage Spaces Direct (S2D) with server 2016 for Citrix User Profiles and central Citrix Provisioning Services repository of all images.
  • They were designed and implemented Storage Spaces Direct (S2D) with server 2016 for User Profiles and central PVS repository of all images and introduction to PVS Versioning - saving thousands of hours in operational hours spent copying 100GB PVS images. Citrix PVS image optimization.
  • Powershell scripting, automation, monitoring, and alerting
  • Networking, documentation, advanced troubleshooting, specifications, emerging technologies
  • Performance Analysis, Test Plans, Reporting, Scripting, continuous process improvement
  • Toolkit: Windows Debug (Windbg), System Internals Process Monitor, Process Explorer, Listdlls, Handle, RAMMap, Autoruns, TCPView, DebugView, Wireshark, Fiddler, HDX Insight, NetScaler MAS, Zabbix, Garfana, PowerShell, SQL Query, Citrix Director
  • Wrote advanced HTML reports using PowerShell. Advanced PowerShell for administration.
  • Wrote Citrix Disaster Recovery Documentation for version Citrix XenApp 7.15 LTSR
  • Wrote Citrix XenApp 7.15 LTSR Policies and Guidelines and Help Desk Troubleshooting Guides

Confidential

Senior Citrix Consultant

Responsibilities:

  • Technology to monitor, manage, and patch workstations and servers was a necessity in this project, and so I proposed that we engage multiple vendors, and I created a cost analysis matrix and where I looked at open source and paid solutions. As follows.
  • Vendor agnostic, functionality testing, validation, evaluation, and cost comparison
  • Nagios, NagiosXI, Nagios Core, Nagios Logger, Manage Engine, Idera, Quest, Thousand Eyes
  • Idera Suite and Quest, SQL Diagnostics, monitoring, migration value add
  • Thousand Eyes for RTP/SIP to monitor Avaya Phone System - IP PBX, IP Phones
  • Solarwinds Suites, most of them including NMM and MSP Manager
  • Connectwise Suite, Kasaya Suite, ServiceNow, and Remedy feature and cost comparison
  • Vendor management and partnerships, features to cost, aggressive negotiationMulti-tenant reference architecture design to allow for BU segmentation
  • Negotiated 36-month zero-interest contract with local Cisco partner
  • Design Cisco UCS, Nimble (iSCSI), VMWare ESX, VeeamVBM, VeeamOne, Nexus switches
  • Coordinate the completion of Cisco UCS Data Center build in Dallas, Texas.
  • Reviewed, tweaked, refined, statement of work and bill of materials to customer sign off
  • Contract signed, equipment procured, racked and stacked, in a remote AT&T/Avaya datacenter
  • Firewall vendor assessment; Palo Alto, Fortinet, Cisco, CheckpointEmphasis on stabilization, providing an end-user consistent experience, reduce help desk calls
  • A new design consisting of heterogeneous environment, SSD, Citrix NetScaler
  • Migration to VMWare ESX from Hyper-V, XenServer, and various hardware to Cisco UCS/Nimble
  • Additional network capacity to allow for using Skype for Business, video, and audio
  • Maximized Citrix Policies, high availability for profiles and redirected folders
  • Design and upgrade existing Active Directory running on Server 2003 to Server 2012 R2 and 2008 R2 Native Mode.
  • Addressed all active issues with Active Directory related to replication, DNS, Sites and Service
  • Leveraged ADSI Edit, IDFix, DIRSYNC, DCDIAG to address issues with legacy SIP, UPN, Primary SMTP, and other attributes
  • Configured auditing to capture all LDAP level changes on DC's using NSLOG and Nagios Logger
  • The design and implementation of Azure Active Directory Connect (AAD Connect), ADFS, MFA. Azure premium licensing.
  • Migrate Exchange 2003 to Exchange 2010SP3 and prepare for Office 365 Hybrid Migration
  • Remediated all issues; ADFix, DIRSYNC, DCDIAG without errors
  • Reviewed Accepted domains and removed legacy/unwanted domains
  • All Email Address Policies reviewed, and legacy/unwanted policies or addresses removed.
  • Mailboxes updated to remove unwanted email addresses using Powershell
  • Added/configured all Domains/DNS in Office 365 in preparedness for migration
  • Documented and removed legacy mailbox permissionsPlanned, implemented, coordinated
  • Discovery Phase, Design Phase, Implementation Phase, Lessons Learned, Training Plan
  • Identified and worked with Microsoft to resolve issues on the Microsoft Cloud backend
  • Upgraded Active Directory from 2003 to 2012 R2 servers at 2008 R2 native mode
  • Migrate Exchange 2003 to Exchange 2010SP3 - Resolved all issues; ADFIX, DIRSYNC, DCDIAG
  • Leveraged ADSI Edit to address the problems with Legacy Lync, and more complex ADSI related issues
  • Complex scenario with multiple mailboxes, permissions, and Send As and Hybrid Mode
  • Automated batch processes, licensing, reporting, custom Transport Rules, and more using PowerShell
  • Trained technology team on PowerShell, provided scripts, to perform migrations for new hires
  • Configured protection for Malware, Spam and Ransomware, and Auditing
  • Last resort escalation - coordinated migrations addressed all migration issues.
  • Setup auditing to capture all LDAP level changes on DC's using NSLOG and Nagios Logger
  • Post-migration recommended optimized, HA design for OnPrem (Exchange required for Hybrid)
  • Incoming and Outgoing mail directed through a Sophos SMTP cloud and Archive Design to reduce viruses, works, malware, Ransomware, and SPAM.
  • The Exchange mail server removed from the equation for all active mail by redirecting incoming and outgoing email to Sophos SMTP Cloud with Sophos Cloud to Office 365.
  • DirSync and ADFS configured to Sophos solution to allow users the benefit of the same username and password.
  • End-User now had the ability to control their SPAM and whitelist settings.
  • Established relationship with Microsoft Fastrack team on behalf of the customer and obtained additional funding
  • Worked with Fastrack team to create a training program for the customer to educate end-users and management
  • Managed project to competion, obtained funding from Microsoft FastTrack
  • Implemented Skype for Business as a separate initiative, with proper training, and equipment standards
  • Worked with systems administration to coordinate phased rollout to end-users, addressed any issues
  • Worked with Fastrack team to create a training program for the customer to educate end-users and management
  • Worked with Fastrack team to obtain additional funding for the customerSecurity posture driven initiative to address breaches in with the existing design
  • Designed and implemented SMTP SPAM cloud solution and corresponding Cloud Archive
  • 52 SMTP Domains, Office 365 Hybrid Mode with Exchange 2010 SP3
  • Users manage their SPAM settings using single-pane of glass Cloud portal (ADFS, DirSync)
  • An additional layer of protection for Malware, Spam and Ransomware
  • Assessed Sophos Reflexion/Radar, Mimecast, and Appriver, and then Sword & Shield MSP
  • Twenty-two Windows 2003 32 bit servers, no patching, limited AV, no backups, no source code, no HA
  • Combination of SQL 2005/2007 running IIS and custom Windows Services running on unsupported hardware
  • Immediate push for interim solution to replace the 8-year-old NAS (throwing errors) and servers running ESX 3.5
  • Negotiated with the local vendor a temporary rental solution to address this immediate need and facilitate DC migration
  • Planned, documented, and coordinate a cutover of all servers to a three cluster node VMWare 5.5 cluster consisting of Confidential servers, Nimble Array (iSCSI), Veeam Enterprise Backup
  • Implemented Sophos Cloud EndPoint protection, Sophos RansomWareX, Sophos Web and Application Control for Server - to address help address years of missed Microsoft patches
  • Designed shared services and high-availability architecture consisting of 2012/2016 servers - IIS servers behind load balancers for web consolidation. Shared SQL Clusters to consolidate SQL instances to facilitate migration off 2003
  • Engaged third party Sword and Shield MSP Security Company to update OSSEC agent on all servers (SIEM)
  • Engaged third-party vendors Quest and Idera to demonstrate tools that might streamline the migration of SQL
  • 6-8-year-old physical and virtual servers, 8-year-old hardware, legacy NetApp and EqualLogic and storage
  • Identified significant over and under allocation of resources: Memory, Processor, Disk space
  • Identified several critical points of failure, and design recommendations to prevent failure
  • Windows 2003 32 Bit, 2003 64 Bit, 2008 R2, 2012 R2, majority unpatched, no source code, no documentation
  • SQL 2005, SQL 2007, SQL 2008 and R2, and 2012, Exchange 2003 initially
  • Windows 2003 Active Directory - resolved Sites and Services, reverse lookup zones, and many other issues
  • Stabilized all the current problems, coordinated new data center build in TX with local MSP and Cisco partner
  • Months of vendor assessments, comparison, made a recommendation on how to migrate legacy systems to Dallas
  • Until October of 2016, on average, two successful Ransomware attacks per week to zero. Sixty man-hours in resource consumption.
  • Negotiated potential contracts with MIMECAST, APPRIVER, and SOPHOS AV, SOPHOS RADAR Archive
  • Replaced legacy and local Barracuda SPAM Filter and 7-year archive appliance
  • Archive mail was exported from Barracuda, sent to RADAR, negotiated UNLIMITED Archive
  • Documented all pros and cons, cost, and presented to senior management
  • The result was Sophos Cloud Endpoint Protection on Every Server and Workstation and free of charge, RansomwareX rollback technology. Sophos SMTP Cloud Filter, Sophos RADAR RO Archive.
  • Since October of 2016, and this writing, no loss of data. RansomwareX, stopping the few attacks that made it through Sophos Cloud to Office 365 or Web Filter.

Confidential

Senior Citrix Consultant

Responsibilities:

  • Optimized NetScaler Layer 2 network architecture working with Networking Engineering to configure VLAN with Tagging egress packets and switch port set to Trunk mode. Allowed for more visibility and control by tagging packets at NetScaler. Eliminated MAC Moves and the potential for Muted interface. Eliminated dropped connections.
  • Upgraded 12 physical NetScaler’s from firmware 10.1.x to 10.5.x to 11.63.16; Nine MPX 9700 FIPS 140-2 compliant. Two MPX 11500 series, one MPX 5500.
  • Optimized NetScaler's to use SNMPV3 with SHA encryption and AES privacy key versus SNMPV2
  • Configured Insight for HDX, DoD, Medicare, and Commercial
  • Configured Citrix Command Center, SYSLOG, SNMP, scheduled backups.
  • Toolkit: Windows Debug (Windbg), System Internals Process Monitor, Process Explorer, Listdlls, Handle, RAMMap, Autoruns, TCPView, DebugView, Wireshark, Fiddler, HDX Insight, NetScaler MAS, Zabbix, Garfana, PowerShell, SQL Query, Citrix Director
  • Coordinate with RSA and AD Team to configure RADIUS Agents on RSA Appliance
  • Coordinate with Networking Engineering and Firewall Team to assure Firewall rules and authentication traffic initiates from NSIP.
  • Advanced TCP packet capture and Wireshark analysis
  • Create single vServer 0.0.0.0 with Content Switch to internal resources leveraging a single URL
  • The custom portal theme, Intranet bookmarks, Clientless access
  • Capture and analyze packet captures done in the shell on Citrix NetScaler (BSD), WinSCP PCAP local to Wireshark
  • Analyze and discern packet patterns, ascertain the root cause of Layer 2 MAC moves
  • Leveraging Storefront 3.0, Receiver 4.3, XenApp 7.6, custom Citrix Policies, AD Group Policy, IE 11 Enterprise Mode (sites.xml)
  • VMWare ESXi 5.5, Cisco UCS and EMC XtremIO All-Flash Array
  • Reviewed and modified as necessary PowerShell scripts for automation and reporting
  • Wrote the process step-by-step to generate a FIPS CSR Request, obtain a CER, add the certificate to Citrix NetScaler, update the Root and Subordinate chains, bind the chains, bind the certificate to the Intermediate CA linked to the root CA, and replace the old certificate with new on the Virtual Server.
  • Wrote a "Lifecycle Application Lifecycle Methodology" to package all applications, upload to software repository, and perform conflict analysis against existing packages and baseline.
  • Required close interaction with Network and Project Management Teams to allocate networks and VLANs
  • Each VLAN requires new SNIP per segment, static route changes, VLAN Tagging on NetScaler
  • Identified several documentation issues ranging from wrong masks to mismatched VLAN ID's to Subnets
  • Streamlined Citrix published applications using Domain Local Groups per domain
  • Reduced Citrix OU complexity for XenApp and XenDesktop
  • Domain Local Group for Citrix access, using ifMember to allow access, in addition to RSA and WI Auth.
  • Consolidated 18000 Citrix users to single XML file hosted behind DFS Share
  • Eliminated over 3000 sites from Compatibility Mode in Group Policy
  • Eliminated Internet Explorer 8 from all Citrix images to Standardize on IE 11 and Enterprise Mode
  • Wrote Enterprise SSL/TLS Design Best Practice (published)
  • Wrote Citrix Disaster Recovery Documentation for version Citrix XenApp 7.6 FP2
  • Wrote Citrix Disaster Recovery Documentation for version Citrix XenDesktop 7.6 FP 2
  • Wrote Citrix XenDesktop Design Guide for version 7.6 Proof of Concept
  • Wrote Citrix XenDesktop Design Guide for version 7.6 Pilot
  • Wrote Citrix XenDesktop 7.6 Policy Setting and Guidelines
  • Wrote Citrix StoreFront 3.0 and 3.1 Citrix NetScaler Integration Implementation and Best Practice
  • Wrote Citrix StoreFront 3.0 Hardening Best Practices Guide (IIS 7.5)
  • Wrote Citrix Road Maps for Version 7.6: Citrix NetScaler, Web Interface, StoreFront, Terminal Server Log, XenDesktop, XenApp, Provisioning Server, Citrix NetScaler Insight, Managed Profile, Director, Command Center, APPDNA, User Profile Manager, Citrix Receiver

Confidential

Senior Citrix Consultant

Responsibilities:

  • Citrix Netscaler, XenApp, XenDesktop - Assessment and Design
  • Assessed current ORG chart, against Tier 1, 2, 3 per Citrix best practices and Rate Card
  • Review and recommend best practice Active Directory Strategy relative to Citrix
  • Review and recommendation for Citrix Application Lifecycle Management - Citrix hosts business applications
  • Collaboration with Citrix Consulting Services to assure best practices architecture
  • Negotiated, reviewed, and obtained approval for Citrix Enterprise Licensing Agreement and Citrix Enterprise Support Agreement

Confidential

Senior Citrix Consultant

Responsibilities:

  • Custom Content Switch with 1500 policies, Single IP Address, a wildcard certificate
  • The heavy content switch supported 1200 internal hosted websites or "panels," behind over a hundred vServers
  • Complex "rules" for the content switch, over 300 rules on one content switch
  • Architect and implement Citrix NetScaler 10.1, Insight and Appflow for Citrix NetScaler 10.1
  • Architect and implement XenDesktop 7 POC, using Provisioning Server 7
  • Architect and implement XenApp 6.5
  • Citrix XenApp 6.5 - Static XML Brokers, Data Collector, Single Zone
  • Citrix XenApp 6.5 Gold Image for PVS Streamed Image
  • Advanced configuration for existing Citrix NetScaler, added additional and HA active/passive configuration

Confidential

Senior Citrix Consultant

Responsibilities:

  • Build Citrix Provisioning Infrastructure and Citrix XenApp 6.5 on VMWare ESX
  • Design, implement Infrastructure to support Citrix Provisioning Services 6.5
  • Design, implement Citrix NetScaler HA Pair, configure VIP, SNIP, NSIP, and LDAP auth.

Confidential

Senior Citrix Consultant

Responsibilities:

  • Considerable investment in VMWare, proposal on the table for VMWare Horizon VDI
  • Customer requested consult (by recommendation) and comparative cost analysis for Citrix XenDesktop
  • VDI bake-off between XenServer and ESXi, Citrix with PVSS, VMWare Horizon (per ESX team design)
  • Design Large scale deployment of Citrix Citrix NetScaler SDX to replace F5.
  • Designed VDI solution utilizing POD to NAS versus Fibre Channel, per customer request.
  • Additional requests, customer contemplating replacing F5 with Citrix NetScaler SDX.

Confidential

Senior Citrix Consultant

Responsibilities:

  • Requested to perform Citrix Assessment, on Hyper-V, issues with PVS, image, and backups
  • Assess backup / DR strategy - existing strategy consisted of SCCM
  • Determine the cause of daily VDISK corruption issues. 4 PVS servers, 4 LUNS, FC connected.
  • Determine the cause of unusually high XenDesktop SQL IOPS with SQL being a stand-alone server, brick backup.

Confidential

Senior Enterprise Architect

Responsibilities:

  • Provided proof of concepts utilizing XenServer, Hyper-V, and VMWare. The final solution implemented on VMWare ESX
  • Responsible for VDI architecture design of the virtualized desktop solution that provides streamlined and secure access to the multi-tenant customer's line of business applications
  • Leveraged a combination of complex technologies to design a complete end-to-end solution utilizing; XenApp for application delivery, XenDesktop for the virtual desktop, Provisioning Services for virtual desktop delivery, Citrix Edgesight for troubleshooting and trending analysis, leveraged monitoring for core infrastructure and reporting, XenDesktop Director for Help Desk (real-time data for VDI and shadowing support), custom server hardware design utilizing custom Confidential hardware, advanced storage solution specific to virtual desktop design, multiple hypervisor support (XenServer or VMWare or Hyper-V), Citrix Web Interface (access),
  • Design and implement - Citrix NetScaler (Load balancer + Citrix Access Gateway), Citrix Branch Repeater (WAN acceleration for ICA), custom user profile strategy, custom user data strategy, and custom Group Policy strategy.
  • Designed for the multi-tenant solution, initial customer 50,000 seats. Solutions consisted of Confidential Blades, Juniper Switches, Confidential EqualLogic iSCSI Storage, NetScaler, F5
  • Designed 800 users "PODS" that allowed for a mix of persistent and shared desktop and high flexibility
  • Designed a solution for agility, PODS pre-built and added as needed with N+1 design
  • Documented and implemented Application Lifecycle Management Framework to enforce standards
  • Proved where XenApp Hosting had the highest yield and lowest cost when combined with XenDesktop
  • Designed a Central Delivery Zone with Advanced AD design allowing 1-way customer-initiated trusts to access resources
  • Detailed and secure MPLS Design combined with Delivery Zone and Storage Matrix and NetScaler SDX for dedicated customer traffic
  • Advanced Wireshark troubleshooting

Confidential

Senior Infrastructure Architect and Team Lead

Responsibilities:

  • Key person responsible for building and management of 32 members geographically dispersed, cross-disciplined, and the highly motivated and customer-driven team responsible for supporting an environment of 8,000+ servers and 20,000+ geographically dispersed customers, vendors, and consultants
  • The hiring manager for all primary support locations. Hired resources with offsetting strengths and with cross training a condition of hire. Wrote custom job descriptions for each role and coordinated with HR.
  • Managed teams responsible for Active Directory and DNS architecture, services, and support
  • Responsible for Active Directory design and migration from version NT 4 to AD 2000
  • DNS restructure, 250 secondary zones to AD integrated
  • Migrated: 11 master NT 4 domains to Active Directory 2000
  • Addressed multiple legacy application issues
  • Migrated: DNS from Unix platform to AD integrated
  • Responsible for Active Directory design and migration from AD 2000 to AD 2003
  • Reliable Active Directory design and migration from AD 2003 to AD 2008R2
  • Managed team responsible for Microsoft Exchange architecture, services, and support
  • Managed teams responsible for Enterprise Monitoring of Windows servers and service offering
  • Key person responsible for building and management of 32 members geographically dispersed, cross-disciplined, and the highly motivated and customer-driven team responsible for supporting an environment of 8,000+ servers and 20,000+ geographically dispersed customers, vendors, and consultants
  • Streamlined processes, created a top-notch "team brand" with precise vision and goals - helped drive down IT costs to the tune of 1 billion dollars
  • Implemented and supported Citrix XenApp and Access Gateway (NetScaler) and VMware service offerings
  • 12,000 Citrix users worldwide, including India, Singapore, Jamaica, Philippines, Mexico, Canada, and multiple states within the US.
  • Managed resources responsible to organization and Project Management office relative to corporate initiatives and deliverables
  • A key contributor to new data center construction in Flower Mound, TX, and three subsequent data center migrations:
  • Horsham, PA to Flower Mound, TX.
  • Cosa Mesa, CA to Flower Mound, TX.
  • Waterloo, IA to Flower Mound, TX.
  • A key player in consolidation and integration efforts provide architectural insight for business and infrastructure initiatives
  • Key contributor in numerous Active Directory, Server OS, and Exchange Migration projects during tenor
  • Migrated 40 SQL Clusters to HP Polyserv

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