Sean Crosby
@seancrosby
Experienced IT systems supervisor specializing in cybersecurity and network administration.
United StatesWhat I'm looking for
I am an IT systems supervisor with strong hands-on experience in network administration, cybersecurity, and systems operations within an airport environment. I established the airport's cybersecurity program, led patching and compliance efforts to meet TSA standards, and trained staff in security best practices.
My technical background includes managing servers, switches, routers, firewalls, CCTV and camera systems, and maintaining mission-critical backups and UPS infrastructure. I have coordinated projects from concept through implementation, supported tier II help desk operations, and created operational standards and user documentation to improve efficiency and reduce costs.
I value practical, security-first IT operations and clear user education. I seek roles where I can apply my technical breadth—network hardware, security tools, and systems software—while mentoring teams and continuing to improve organizational security posture.
Experience
Work history, roles, and key accomplishments
Information Systems Supervisor
Bill and Hillary Clinton National Airport
Nov 2017 - Present (8 years 2 months)
Started and led the airport cybersecurity program, implemented user training and KnowBe4 SPAM testing, and maintained security patches and compliance with TSA standards while supervising IT onboarding and operational standards to reduce costs.
Information Systems Technician II
Bill and Hillary Clinton National Airport
Feb 2016 - Nov 2017 (1 year 9 months)
Served as lead technician coordinating projects from concept to implementation, provided Tier II help desk support, and trained new hires to improve operational readiness and service delivery.
Information Systems Technician
Bill and Hillary Clinton National Airport
Aug 2013 - Feb 2016 (2 years 6 months)
Maintained servers, workstations, switches, cameras, backups and UPS systems, managed wireless passenger access, and supported streaming/recording of commission meetings to ensure mission-critical operations.
IT Technical Support Intern
Optometric Opportunities
Dec 2012 - Aug 2013 (8 months)
Maintained office networks, configured wired and wireless routers, supported firewall maintenance, and performed monthly onsite hardware and cabling maintenance to ensure reliable clinic operations.
BBComputer/Tablet Consultant
Best Buy
Oct 2012 - Aug 2013 (10 months)
Advised customers on computer and tablet purchases based on needs, assisted sales processes, and provided product recommendations to increase customer satisfaction and sales.
Education
Degrees, certifications, and relevant coursework
ITT Technical Institute – Little Rock
Associate of Applied Science, Network Systems Administration
Completed an Associate of Applied Science in Information Technology with a focus on Network Systems Administration, graduating in May 2013.
NCNational Park Community College
Associate of Applied Science; Associate of Science, Radiography / General Science
Earned an Associate of Applied Science in Radiography and an Associate of Science, completed by 2010.
Availability
Location
United StatesAuthorized to work in
Job categories
Skills
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