Security Engineer Network

Employment History

The Judge Group – Network Security Engineer - Citrix NetScaler ADC, 10/2023 to Present.

•Assisted one of Judge Group’s clients, MunichRE, with the management of its global F5 BigIP LTM/GTM, Citrix ADC NetScaler and AVI load balancing infrastructure.

•Assisted the organizations’ application owners with SSL certificates life-cycle management.

•Assisted the client’s internal teams with remediating application flow issues.

•Performed packet captures to isolate and resolve data flow outages.

•Performed firmware upgrades to support client’s compliance to vendors’ software end-of-life and end-of-support schedules and resolve documented CVE’s.

•Provided technical expertise to support client’s personnel daily function.

•Provided mentorship to other senior load balancer engineers.

•Provided third-level escalation support for all application flow outages.

TekSystems, Inc. - Senior Network Security Engineer - F5 BigIP and Citrix NetScaler ADC, 02/2021 to 09/2023.

•Assisted one of TekSystems’ clients, Alorica Inc., with the management of its F5 BigIP LTM and Citrix ADC NetScaler load balancing infrastructure.

•Assisted the organization’s application owners with SSL certificates life-cycle management.

•Assisted the team with remediating security vulnerabilities on applications configured on both F5 and NetScaler load balancers across multiple data centers.

•Assisted client’s application team with troubleshooting application flows (Layer 1 - Layer 7).

•Performed file system management to ensure client’s load balancers are fully operational and optimized.

•Performed MACD implementation under ITIL change management processes in adherence to client’s policies.

•Performed firmware code upgrades on both F5 BigIP and Citrix NetScaler application delivery controllers to remediate CVE’s that have been published by the vendors.

American Cyber Systems, Inc. - Citrix ADC Senior Network Security Engineer supporting Verizon Communications, 02/2020 to 02/2021.

•Installed software code - NetScaler NS12.1: Build 55.18.nc - as part of Verizon’s standardization to its global Citrix NetScaler load balancing infrastructure.

•Performed software upgrades on the Citrix NetScaler infrastructure to address and mitigate security vulnerabilities.

•Performed hardware upgrades on the ADC platforms to address and mitigate end-of-life and end-of-support issues on the Citrix NetScaler load balancers.

•Performed audit to assist Verizon’s initiative to decommission load balancing virtual servers and their corresponding content switching virtual servers and related content switching policies.

•Performed expired SSL certificates decommission.

•Assisted in the physical migration of NetScaler load balancers to new core switches at multiple data centers.

•Assisted Verizon’s application owners with SSL certificates management.

•Performed MACD implementation under ITIL change management processes in adherence to client’s policies.

•Assisted other Verizon’s ADC network engineers with change implementation.

SiriusXM Connected Vehicles - Senior Network Engineering Consultant, 07/2018 to 12/2019.

•Designed and built F5 LTM virtual servers to support client’s initiative to migrate its load balancing infrastructure from Brocade to BigIP local traffic managers.

•Performed related network changes to ensure the data and health check rules are permitted for communications.

•Assigned and managed the IP addressing scheme on the VIP build.

•Performed DNS registration on virtual servers as part of the MACD change process.

•Designed, built, and presented network change requests as part of the client’s ITL and PCI compliance processes.

•Assisted client in the management of their primary data center in Irving and secondary data in Piscataway, NJ.

•Assisted in the turn up of a new call center at layer 1-4 of the OSI including configuring Cisco ASR’s for WAN connectivity.

•Assisted client with data center operations, maintenance and support.

•Assisted client migrating its Cisco ASA firewalls to Palo Alto firewalls and ensured firewall rules were transferred successfully between the two appliances.

•Created automated script to perform daily configuration backups of SxM’s firewalls.

•Participated in DR fail-over testing – performed routing changes, DNS changes, adding missing firewall rules, etc.

Bank of America - AVP, Consultant II - Systems Security Engineering & Administration - F5 BigIP.

Technology Engineering & Operations, 08/2016 to 06/2018.

•Managed multiple related and interdependent projects to collectively deliver a desired business outcome based on varying degrees of complexity.

•Managed end-to-end security infrastructure delivery lifecycle including the collection and translation of business requirements to enable technical implementation of network programs and projects.

•Managed and contributed to a portfolio of network infrastructure projects from design, build, through implementation and operational turn-over, with varying levels of complexity.

•Performed design validation testing and pre-work in non-production environments when necessary to ensure successful implementation in production.

•Created, modified, and represented appropriate change records required prior to implementing or hand-off.

•Provided on-call support for any application issues related to the LTM and GTM platforms. Performed packet captures to assist application owners in troubleshooting any application errors.

•Built LTMs and GTMs, both physical and virtual, from the ground up based on a set of pre-generated configuration variables.

•Built VIPs and WIPs based on a set of criteria provided by the application teams.

•Performed code upgrades on LTMs and GTMs to address any hotfix issues identified by the vendor.

Verizon Enterprise Solutions - Senior Network Implementation Engineer, 11/2015 to 07/2016.

•Provided Tier II execution of network changes on internal and customer facing network (routing and switching) infrastructure and application (firewall and load balancer) devices.

•Executed of network changes on the change calendar in CRM system and provide pre- and post-verification of all networking changes.

•Built virtual firewalls, and configured ACLs on single-context and multi-context ASA 5585 platforms. Performed IOS upgrades to resolve any bug fixes identified by the vendor.

•Provided on-call support for any access issues related to filtering rules. Performed packet captures to assist in the troubleshooting of application and network issues related to the firewall operating systems.

•Reviewed requirements with change requestor and customer, if necessary, to ensure desired outcome is met on the first change attempt.

•Performed hardware and software upgrades for networking devices to comply with PCI bylaws - Upgraded Nexus 7K. Upgraded Citrix NetScaler load balancers OS from 9.3 to 10.5 code.

Terremark - Senior Network Implementation Engineer, 05/2012 to 10/2015.

•Provided Tier II execution of network changes on internal and customer facing network (routing and switching) infrastructure and application (firewall and load balancer) devices.

•Executed of network changes on the change calendar in CRM system and provide pre- and post-verification of all networking changes.

•Provided complete and accurate record for all change execution steps in CRM system.

•Reviewed requirements with change requestor and customer, if necessary, to ensure desired outcome is met on the first change attempt.

•Developed, implemented and maintained DR strategies for load balancer, firewall, switch and optical solutions.

•Established performance benchmarks for deployed load balancer, firewall, switch and optical solutions.

•Performed hardware and software upgrades for networking devices - Upgraded 100-plus pairs of ASA 5585 from code version 8.2X to 9.0.3 in order to support clustering technology. Upgraded 10 pairs of Nexus 7K 1Gig line cards to 10Gigs as well as upgraded Sup1 to Sup2E. Upgraded Citrix NetScaler load balancers OS from 9.2 to 10.x code.

Yahoo!, Inc. - Senior Network Operations Specialist, 01/2010 to 04/2012.

•Analyzed and diagnosed connectivity and functionality problems relating to a wide variety of complex hardware and software issues.

•Provided documentation for support staff via Remedy ticketing system.

•Prepared and provided operational reports as necessary.

•Provided engineering support for other operational issues to ensure yahoo.com is fully operational 24x7x365.

Verizon Business - Senior Network Engineer - Remote Operations Center (ROC), 01/2006 to 12/2009.

•Implemented and supported fully redundant, fault tolerant LAN and WAN configurations involving redundant Cisco hardware and connectivity, load-balanced configurations, and failover configurations using network protocols including OSPF, BGP, HSRP, VRRP, and other high-availability standards.

•Worked with other Senior Network Engineers on all range of network and security projects.

•Installed & configured production networks in the data center environment.

•Assisted DBA, NT and Unix Systems Administrators on Layer 4-7 design and troubleshooting.

Tandem Computers - Senior WAN Network Engineer, 01/2000 to 12/2006.

Trandes Corporation - Senior LAN Network Administrator, 01/1997 to 12/1999.

University of Michigan Medical Center Information Technology - Work-study Intern, 08/1989 to 12/1998.

Education

University of Michigan, Ann Arbor, MI.

B.A., Economics.

Sept. 1988 - May 1994.

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