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Luis
Luis.Alberto.Roldan@gmail.com
203-570-9506
9201 E. Mississippi Ave E2-U206
Denver, CO 80247
Systems Support Engineer-Citrix Engineer
39 years experience W2
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Summary

An outstanding IT Professional with over 25 years of progressive experience supporting enterprise-level computing infrastructures and applications. Proficient in the diagnosis, planning, and implementation of practical strategies for complex technical matters and requirements. Using the ITIL Framework to guide all aspects of my tasks. Worked in many industries: Healthcare/Oil and Gas/Technology/Public and Start-Ups. A dependable, results-focused individual possessing excellent organizational, analytical, and oral/written communication skills. Areas of expertise include enterprise virtualization and storage, cloud computing, scripting automation, and server and network support.

Expertise

  • Citrix Certified Professional, Citrix Virtual Apps and Desktops.
  • Rolled out Windows 10 VDI Solution using: OnOrem Resources, MS Azure, & Citrix Cloud.
  • Implemented Citrix App Layering XenDesktops using Windows 10, taking advantage of the Elastic Layer Assignment.
  • DevOps proficient using automation tools to automate tasks to speed up processes and provide consistency. Agile, Scrum, Disciplined Agile, and Scrumban competent.
  • Expert IT Security Analyst, performed many HIPAA Assessments and Audits, including Sarbanes-Oxley IT Audits for public companies.
  • Continuous ITSEC Vulnerability Compliance, Performed Print Server Management duties and Patch Cycles for Windows O/S and Applications.
  • Active Directory Administrator of the multi-sites environment in a 20012 R2/2016 mixed mode or pure 2012 R2 domain and forest level environment, using Group Policy Objects to manage security in the infrastructure.
  • Data Center Management: Access Control, Fire Control, Cooling Distribution, Power Distribution.
  • Implemented and managed Appsense Environment Manager to push profile folder redirections, mapped drives, unique registry, session data, and printer settings to users.
  • SAN Administration, using iSCSI and Fibre Channel connections with Dell Equallogic and EMC Storage equipment.
  • Maintained, created, administered a vast Application Library in XenApp, using Citrix Provisioning Services; Versioning, Device Collections, and vDisk tools. Managed various AV/AS Solution: Symantec Sophos, Kaspersky, TrendMicro, McAfee, etc.
  • Built and maintained Citrix Gateways / Netscalers; Load Balancing, Gateway Virtual Servers, Cloudbridge, and Managed SSL Certificates.
  • Installed, configured, and administered MS SQL 2008 - 2016 Servers. Created databases, implemented maintenance Plans. Able to troubleshoot all issues.
  • HP / IBM / Dell Server Hardware procurer, installer, configurator, administrator, supporter.
  • Extraordinary communicator creating meticulous and detailed documentation of procedures, processes, and instructions. Adjusting the communication to the specific audience.
  • Implemented and performed daily incremental and weekly & monthly full backups of critical data and systems using Veritas NetBackup, Tivoli, NTBackup using B2D and Tape technology.

Experience
Systems Support Engineer - Citrix Engineer
Information Technology
Feb 2017 - present
Englewood, CO

October 2017 - Present
Sr Citrix Engineer

Maintain and manage a Global Citrix Virtual Apps and Desktop environment. Lead on many projects and tasks to maintain and upgrade a Global Citrix Solutions:

  • Rolled out Windows 10 VDI Solution using: OnOrem Resources, MS Azure, & Citrix Cloud.
  • Stood up an Offsite DR Citrix XenDesktop / XenApp 7.15 LTSR environment.
  • Continuous ITSEC Vulnerability Compliance.
  • Maintained, created, administered a vast Application Library in XenApp, using Citrix Provisioning Services; Versioning, Device Collections, and vDisk tools.
  • Performed management of Hypervisors; VMWare ESX and Citrix Hypervisor.
  • Built and maintained Citrix Gateways / Netscalers; Load Balancing, Gateway Virtual Servers, SSl Certs, Cloudbridge.
  • SQL Database Server Management.
  • Created and maintained all documentation in support of the environment, including:
    • Project Plans
    • Test Plans
    • Change Request & Test Plans
    • Internal Communications
    • Service Bulletins
    • Wiki - Input
  • Provided technical solutions to all projects and tasks where using Citrix Services can facilitate a User Task.

February 2017 - October 2017
Sr Citrix Engineer

  • Worked in the final stages of a Data Center migration. Validated the XenApp and XenDesktop Infrastructure before Go-Live dates with no major issues once live.
  • Implemented a new Provisioning Services 7.11 from MCS and consolidated the entire XenApp infrastructure to PVS replacing the previous 60 Persistent XenApp Servers down to 12 VM's and 3 images.
  • Consolidated all user profiles from geographically located to the user to the Engelwood Data Center.
  • Maintained SLA levels in the ServiceNow Ticketing system, using ITL methodologies in delivering Services to Hitachi Data Systems employees and 3rd parties.
  • Oversaw offshore team to support the 3,000 user environment during the Americas off hours.
  • Trained and mentored Offshore on PVS, XenDesktop and general support of a Windows 7 XenDesktop VDI environment.
Agile Methodology Auditing Citrix Database Backups Desktops Devops EMC iSCSI MS Azure Netscaler Project Management Scrum SQL Veritas Veritas NetBackup XenAPP XenDesktop Windows Tivoli Citrix Provisioning Server Hyper-V VMWare Gateways Documentation Test Planning SSL Provisioning Project Planning Load Balancing Compliance Data Center ServiceNow Windows 7 VM
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IT Systems Engineer
Utilities/Energy
Jul 2016 - Feb 2017
Denver, CO
  • Maintained the SLA level re-mediating operational issues and performing changes to allow the FTE Windows Engineers to merge MarkWest Energy into Marathon Oil's computer and network infrastructure.
  • Performed Quarterly SOX reporting and managed an FTP Usage analysis to using GREP to export data into Excel where the data was filtered through a Pivot Table where many factors were determined, such as Active/Inactive Users, frequency of usage, geographical map of usage, top 10 users, biggest data uploaders, file types that are uploaded, etc, etc. Data was used to determine an SFTP product to use.
Agile Methodology Auditing Citrix Database Backups Desktops Devops EMC iSCSI MS Azure Netscaler Project Management Scrum SQL Systems Engineering Veritas Veritas NetBackup XenAPP XenDesktop Network Infrastructure Windows SOX Microsoft Excel FTP Analysis
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Sr. Systems Architect, Team Lead
Information Technology
Mar 2014 - Jul 2016
Greenwood Village, CO
  • Served as a Team Lead as a top-level technical expert in the analysis, design, implementation, and maintenance of Citrix environments, responsible for their overall security, integrity, and reliability.
  • Managed a team of 8-10 IT professionals and PM, encompassed all disciplines necessary to support various clients with various needs hosted in a multi-tenant VSphere environment or in a Managed Support Agreement with Jr. Administrators onsite if contractually required.
  • Technologies used to deliver an efficient Citrix VDI environment were VMWare, Windows Server, and AD/GPO/DNS/DHCP/SQL/FTP/SFTP, with a Cisco and CheckPoint engineer to provide network and security needs. Also, the technologies needed to support the customers' processes adhering to compliance standards their industries fell under (HIPAA, ITAR, SOX, etc).
  • Managed and mentored team to achieve project and support goals using AGILE Methodologies to SCRUM once a day and performed weekly SPRINTS to plot out project and tasks and also provided me a chance to gauge the team's cohesiveness and individual strengths and weaknesses which I would use in b-weekly 1on1's to mentor and provide feedback on performance and set professional and sometimes personal goals for a well-rounded team member.
  • Provided Metrics and KPI's to executives and customers, reports designed to the respective audience accordingly. Used ITIL to streamline the Service Lifecycle of internal Infrastructure and Customer processes.
System Architecture Agile Methodology Cisco Citrix Network Security VMWare Windows Server Windows vSphere Scrum ITIL Database Maintenance Analysis
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Citrix Architect
Healthcare
Nov 2013 - Mar 2014
Englewood, CO
  • Performed Steady-State work, ticket resolution for a multi-farm, multi Citrix version environment.
  • Provided service and support to application owners, project managers, solution partners, management, vendors, and end-users.
  • Supported 2,000 applications with 20,000 users located in Hospitals, Dr.’s Offices, and PT Facilities from Arkansas to Washington State.
  • Submitted and performed Changes as the need for them arises.
  • Monitored, analyzed, and evaluated system utilization to ensure the appropriate and efficient use of applications and system resources.
Project Management Citrix
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Citrix Systems Engineer - Consultant
Manufacturing
Sep 2013 - Nov 2013
Stamford, CT
  • Implemented Citrix XenApp 6.5 environment: 400 users, 5 Applications, Worldwide sites.
  • Designed and Implemented Citrix Provisioning 7 with DFS in a PVS Pool.
  • Microsoft Hyper-V 2012 Administration with StorSimple as the Storage Solution.
  • Implemented Citrix Profile Management 5.0 to manage User Roaming Profiles.
Citrix Citrix Provisioning Server DFS Hyper-V Systems Engineering XenAPP Provisioning
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Citrix Systems Engineer - Consultant
Information Technology
Jun 2013 - Sep 2013
Buffalo, NY
  • Built a Proof-Of-Concept Citrix XenApp 6.5 Environment and tested with client applications and the clients' QA / Test Processes.
  • Tested compatibility of Client applications with XenApp 6.5. Presentation 4.5 Farm remains up, feeding legacy applications to users via Web Interface XenApp Services with Online Plugin software loaded on client and Wyse Terminals.
  • Built Production Citrix XenApp 6.5 Environment with Web Interface, Provisioning Services, XenApp, Netscaler, Licensing, SQL Server. Encompassed 100 Provisioned XenApp VMs.
  • Used VMWare vSphere 5.1 to manage and provision a Citrix environment.
  • Configured Machine and User Configurations GPO’s to take advantage of the Windows Server 2008 R2. Used Citrix XenApp 6.5 and Windows Server 2008 R2 Best Practices guidelines in applying the GPO and Citrix Machine and User Policy settings.
  • Cutover to the new system over Labor Day weekend; user feedback has been positive with minor issues but no showstoppers.
Citrix Netscaler SQL SQL Server Systems Engineering VMWare vSphere Windows Server XenAPP Windows Quality Assurance Provisioning MS Visio
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Citrix Systems Administrator
Information Technology
Jan 2013 - Jun 2013
New York City, NY
  • Utilized Platinum Licensing and implemented a Provisioning Services Infrastructure for XenApp and XenDesktop environments. PVS 6 with versioning was leveraged which was greatly received by their applications teams. Knowledge transfer and detailed documentation were left for the Systems Administration team at the project end.
Citrix XenAPP XenDesktop System Administration Provisioning Documentation
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Systems Administrator
Information Technology
Sep 2012 - Jan 2013
New York, NY
  • Responsible for effective provisioning, installation/configuration, operation, and maintenance of systems hardware and software and related infrastructure.
  • Participated in technical research and development to enable continuing innovation within the infrastructure.
  • Ensured that system hardware, operating systems, software systems, and related procedures adhere to organizational values, enabling staff, volunteers, and Partners.
System Administration Provisioning Database Maintenance
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System Administrator
Consumer Goods
Jul 2012 - Sep 2012
Shelton, CT
  • Supported the Citrix and VMWare Enviroments nationwide, supporting Europe operations when called upon.
  • Performed server builds, VM & HW.
  • SAN Administrator.
Citrix SAN System Administration VMWare VM Server Builds
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Systems Administrator
Banking/Financial
Nov 2006 - Jun 2012
Milford, CT
  • Managed the day-to-day operation of a Leasing Company’s Data Infrastructure, providing solutions, implementing software tools at the server and desktop level.
  • Data Center Management, FOB Key Access Administrator, Fire Control, Cooling Distribution, Power Distribution. DR/BCP Coordinator, Data Retention, KVM, SAN Administrator.
  • Designed multi-site Windows 2008 R2 Active Directory topology and vastly improved security through the use of Group Policy Object implementation.
  • Implemented a Citrix XenServer, XenApp Platinum Level solution for the entire environment performing P2V server migrations. Using Provisioning Services 5.6 SP 1 to provide XenApp VM's that publish 30+ applications in the farm. Using AD Groups to provide application access.
  • Configured Licensing Server, Access Gateway, on top of Windows Server 2008 R2 Server. Used the Citrix provided Netscaler Virtual Appliance 9.3 and run Web Interface on Linux Tomcat Java Application server.
  • Completed WSUS 3.0 implementation as a patch management resource for all company workstations and servers . Migrated AV/AS Solution from Symantec EndProtection to Sunbelt Software Vipre AV/AS Solution. Coordinated offsite user agent removal and install. Implemented Appsense Environment Manager to push profile, mapped drives, unique registry, and printer settings to users.
  • HP Server installer, configurator, administrator. BL3000, BL460c, DL380, DL360, DL320. Used HP’s iLO2 & 3 remote access system to support the infrastructure 24/7 anywhere.
  • MS SQL Server 2008 R2 Administration, creating, restoring, and backing up of databases. Implemented Maintenance Plans, set ownerships, schemas, and roles.
  • Network Admin on Juniper EX4200 Enterprise Switches JunOS, PoE, Voice VLAN implementation using QoS. Cisco 4503, Supervisor II+, 2 x 48 GigE ports. Implemented various VLAN’s to segregate traffic ( VLAN: iSCSCI, PVS, Production, DMZ, EXT).
Cisco Citrix Data Center Juniper Netscaler Project Management SAN Switches VLAN XenAPP XenServer WSUS Windows 2000 Windows VM System Administration SQL Server SQL Provisioning Patch Management MS Active Directory Linux Java HP Group Policy Database Maintenance Windows Server Apache Tomcat
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WinTel System Administrator
Information Technology
Apr 2004 - Nov 2006
Rye Brook, NY
  • Created VMWare 3.0 Pools using P2V to consolidate the Hardware Infrastructure. Assisted in large scale deployments and assisted customers with procurement, design, and best practice decisions revolving around VMware's suite of virtualization products.
  • Provided 24/7 support for over 1000+ IBM servers throughout the Phillip Morris enterprise.
  • Performed physical-to-virtual (P2V) and virtual-to-virtual (V2V) migrations of Windows and Linux servers using VMware Converter, and created gold Windows and Linux virtual image templates (fully automated provisioning through VMware guest customization.
  • Facilitated storage planning and LUN & METALUN assignment and expansion two EMC CLARiiON fiber channel CX4-120 SANs in a host heterogeneous (Linux, ESX, Win) topology.
  • Followed detailed change management processes to ensure minimal environmental disruption during upgrades and repairs.
  • Supported Mixed Windows Server Infrastructure providing HW and OS support. Performed Rack and Server builds, and OS’d the systems and configuring as requested. Rotated On Call status, responding to alerts 24/7 once a month.
Project Management Fiber channel Fiber Optics Linux System Administration VMWare Windows Server Wintel Windows Virtualization Server Builds Provisioning EMC Database Upgrades Change Management
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Analyst/Admin
Information Technology
Oct 1982 - Mar 2004
  • i3 Mobile, Stamford, CT
    Operations Analyst / Operations Manager / Systems Administrator
    Aug 1997 – Mar 2004

Messaging company that worked with the nascent cellular companies arising at the time

  • Federal Express, Stamford CT
    Operations Manager / Courier
    Dec 1986 - May 1997

Global leader in overnight shipping

MILITARY

  • United States Army (National Guard, Connecticut), Camp Hartell, Windsor Locks, CT
    June 1981 – Oct 1982

Helicopter Mechanic CH-54A

  • United States Marine Corps, MCAS (H) Tustin, CA
    Oct 1982 – Oct 1986

U.S. Marine, Helicopter Crew Chief, Plane Captain, Line Mechanic

System Administration
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Edit Skills
Non-cloudteam Skill
Education
Associate's in Computer Science
Norwalk Community College 1997
Attended in Aeronautical Engineering
Northrop University 1985
Related Courses
Citrix XenApp Administration, 2010
JUNOS Juniper Switches Administration, 2009
Vignette WebServer Administration, 2003
Certifications
Citrix Certified Associate - Virtualization (CCA-V)
VMWare Certified Professional (VCP-5)
Cisco Certified Engineer
A&P Certified
Skills
System Administration
2013
30
Windows
2021
14
Citrix
2021
12
Project Management
2021
12
Provisioning
2021
12
Windows Server
2016
10
XenAPP
2021
10
Netscaler
2021
9
SQL
2021
9
Data Center
2021
8
Database Maintenance
2016
8
Linux
2012
8
VM
2021
8
VMWare
2021
8
Cisco
2016
7
EMC
2021
6
Agile Methodology
2021
5
Apache Tomcat
2012
5
Group Policy
2012
5
HP
2012
5
Java
2012
5
Juniper
2012
5
MS Active Directory
2012
5
Patch Management
2012
5
SAN
2012
5
Scrum
2021
5
SQL Server
2013
5
Switches
2012
5
VLAN
2012
5
Windows 2000
2012
5
WSUS
2012
5
XenServer
2012
5
XenDesktop
2021
4
Auditing
2021
3
Citrix Provisioning Server
2021
3
Compliance
2021
3
Database Backups
2021
3
Desktops
2021
3
Devops
2021
3
Documentation
2021
3
Gateways
2021
3
Hyper-V
2021
3
iSCSI
2021
3
Load Balancing
2021
3
MS Azure
2021
3
Project Planning
2021
3
ServiceNow
2021
3
SSL
2021
3
Test Planning
2021
3
Tivoli
2021
3
Veritas
2021
3
Veritas NetBackup
2021
3
Windows 7
2021
3
Analysis
2017
2
Change Management
2006
2
Database Upgrades
2006
2
Fiber channel
2006
2
Fiber Optics
2006
2
ITIL
2016
2
Network Security
2016
2
Server Builds
2012
2
System Architecture
2016
2
Virtualization
2006
2
vSphere
2016
2
Wintel
2006
2
Systems Engineering
2017
1
Cloud Computing
0
1
Dell
0
1
Dell Servers
0
1
DFS
2013
1
FOCUS
0
1
FTP
2017
1
HIPAA
0
1
Microsoft Excel
2017
1
MS Visio
2013
1
Network Infrastructure
2017
1
Network Support
0
1
Quality Assurance
2013
1
Scripting
0
1
Security Analyst
0
1
SOX
2017
1
SQL 2000
0
1