Network Security Customer Service

Sean Brennan

408-***-**** ***********@*****.***

NETWORK NGINEER

Highly dependable and results-oriented professional with extensive experience in network, support, and troubleshooting engineering experience. Recognized for the ability to provide innovative solutions to complex technical issues. Long history of customer service excellence serving technical professionals and untrained clients with sensitivity and professionalism. Self-motivated work ethic to perform effectively in independent or team environments.

AREAS OF EXPERTISE

Layer 1 Through Layer 7 Networking Network Security Cloud Computing Wide Area Networks

Network Design Testing Implementation Network Troubleshooting Strong Communication

Interpersonal Skills Presentation Skills

TECHNICAL SKILLS

TCP-IP Layer 2 and Layer 3 Switching and Routing BGP OSPF MPLS Ethernet RSTP VLANs Cloud Computing Network Security QoS & DiffServ HTTP(S) Layer 4-7 Switching-Server Load Balancing

PROFESSIONAL EXPERIENCE

Dell Technologies/EMC Corporation, Santa Clara, CA 2015 - 2023

Principle Network Engineer

Lead network architect for all lab networks in the DellEMC R&D Labs throughout California.

Successfully architected, installed, configured, and managed multiple new building R&D lab networks after the Dell acquisition of EMC, 15 lab networks were moved and recommissioned in the new buildings.

Configured, implemented, and maintained all DellEMC lab networks.

Troubleshooted and elevated any network issues encountered.

Served as Architect and implemented any network change requests and confirmed network access.

Apple, Inc., Cupertino, CA 2014 - 2014

Sr. Network Security Engineer

Analyzed existing network security implementations and remediated as necessary to improve overall network security.

Successfully secured/blocked all corporate network traffic to/from all data center network traffic within all Apple corporate campuses.

Reviewed and tuned Router Access Control Lists.

Evaluated Firewall security policies and provided performance metrics.

Performed in-depth log analysis on Router and Firewall event logs.

Implemented change requests related to network security.

Brocade Communications, Inc. / Foundry Networks Santa Clara, CA 2004 - 2013

Sr. Systems Engineer – Strategic Account Team

Provided technical Sales support for Brocade Communications LAN/WAN market platforms for Worldwide Named accounts.

Helped Secure $16M Purchase Order for large customer network design. Achieved quota every year – President Club Invitee.

Sean Brennan ***********@*****.*** Page 2

Served as contributor specializing in pre-sales and post-sales activities on the Brocade IP Networking product line.

Designed, configured, and deployed complex network architectures for Fortune 100 customers.

Performed in-depth and technical presentations for customers, partners, and at major events.

Provided mentorship/guidance on Technology trends to clients, partners, and employees.

Managed key End-user technical relationships.

Served as Communication driver between Field and Corporate on any technical issues.

Oversaw customer account management and development.

ADDITIONAL PROFESSIONAL EXPERIENCE

Adara Systems, Scotts Valley, CA

Network Engineer

WinCom Systems, Inc. San Jose, CA

Systems Engineer

Cisco Systems, Inc. San Jose, CA

Systems Engineer

Nortel Networks / Bay Networks / SynOptics Santa Clara, CA

Senior Corporate Systems Engineer

Cabletron Systems, Inc., San Jose, CA

Field Engineer

EDUCATION

Bachelor of Science (B.S.), Information Technology

University of Phoenix

Associate of Arts (A.A.), Information Technology

University of Maryland / DeAnza College

VOLUNTEER WORK

Cambodia Wildlife Sanctuary – Anlong Veng, Cambodia

Save Elephant Foundation - Chiang Mai, Thailand

Wildlife SOS - Elephant Conservation and Care Centre, Mathura, India

AFE/Fisi Camp - Village food drop Narok, Kenya

SHE-CAN - Mill Valley, California

Junior Achievements of Northen California

Camp Nej Wilderness Adventure Camp, City of Sacramento Department of Parks, and Recreation – 4x4 Transportation Coordinator

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