Lead Cyber Security
Current
Aug 2024 - Present
AeroLeads people directory · profile
William Barrera Email & Phone Number
Lead Cyber Security
at
LevelBlue
1 work email found
@urs.com
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Who is William Barrera? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
William Barrera is listed as Lead Cyber Security at LevelBlue, based in Essex, Maryland, United States. AeroLeads shows a work email signal at urs.com and a matched LinkedIn profile for William Barrera.
William Barrera previously worked as Senior Cyber Security Engineer at At&T Cybersecurity and Cisco Security Engineer at Cisco. William Barrera holds As Networking Technology Services, Computer And Information Sciences And Support Services from Florida State College.
Company email context
Email format at LevelBlue
This section adds company-level context without repeating William Barrera's masked contact details.
{first}.{last}@urs.com
86% confidence
AeroLeads found 1 current-domain work email signal for William Barrera. Compare company email patterns before reaching out.
Profile bio
About William Barrera
Security Engineer whose qualifications include Cisco ASA Specialist, CCNA Security, CCNA R&S, and CompTIA Security+ certifications; and detailed knowledge of security tools, technologies, and best practices. Over twelve years of experience in creating and deploying solutions protecting networks, systems, and information assets for diverse companies and organizations.Technology Summary: Netscout AED, Netscout Sightline, Firepower Management Center HA, Sourcefire, ASA5500-X NGFW, Firepower Threat Defense 2100, 4100 and 9300, Firepower 7K and 8K Series Firepower, FMC 3k & 4K, Clustering and HA, Checkpoint Gaia, Paloalto, Splunk, Nagios, Centreon, TrustWave
Listed skills include Cisco Technologies, Firewalls, Networking, Network Security, and 37 others.
Current workplace
William Barrera's current company
Company context helps verify the profile and gives searchers a useful next step.
8 roles
William Barrera work experience
A career timeline built from the work history available for this profile.
Senior Cyber Security Engineer
At&T Cybersecurity
Cisco Security Engineer
Aug 2018 - Sep 2019
Engagement Engineer
The Select Group At Cisco
Oct 2016 - Sep 2019
Network Security Engineer
Keaki Technology
Responsible for maintenance, support and security of the Cisco Network (Nexus 5K, Catalyst 3750-Xs) ASA5500-X NGFW with IPS Module, 2900 ISR, EMC/ISCI Storage and VMWare Virtualization platforms of the three Enterprise Data Center..
Sep 2014 - Sep 2019
Network Security Administrator
Perform planning, developing, installing, configuring, maintaining, supporting and optimizing all network hardware, software and communication links.
Mar 2014 - Aug 2014
Network Specialist
Performs complex technical work involving the configuration, operation, support, deployment of all network systems and trouble shoot complex network issue.
Oct 2010 - Feb 2014
Network Administrator
Hcmc Inc
Maintains computing environment by identifying network requirements; installing upgrades; monitoring network performance.
Apr 1999 - Sep 2010
2 education records
William Barrera education
As Networking Technology Services, Computer And Information Sciences And Support Services
Florida State College
As Equivalent, Computer Systems Networking And Telecommunications
Florida Technical College
FAQ
Frequently asked questions about William Barrera
Quick answers generated from the profile data available on this page.
What company does William Barrera work for?
William Barrera works for LevelBlue.
What is William Barrera's role at LevelBlue?
William Barrera is listed as Lead Cyber Security at LevelBlue.
What is William Barrera's email address?
AeroLeads has found 1 work email signal at @urs.com for William Barrera at LevelBlue.
Where is William Barrera based?
William Barrera is based in Essex, Maryland, United States while working with LevelBlue.
What companies has William Barrera worked for?
William Barrera has worked for Levelblue, At&T Cybersecurity, Cisco, The Select Group At Cisco, and Keaki Technology.
How can I contact William Barrera?
You can use AeroLeads to view verified contact signals for William Barrera at LevelBlue, including work email, phone, and LinkedIn data when available.
What schools did William Barrera attend?
William Barrera holds As Networking Technology Services, Computer And Information Sciences And Support Services from Florida State College.
What skills is William Barrera known for?
William Barrera is listed with skills including Cisco Technologies, Firewalls, Networking, Network Security, Troubleshooting, Security, Routers, and Cisco Routers.
Find 750M verified contacts
Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.
Start free trial