Booker DiMaio

Network Security Engineer

Booker DiMaio

full-time

Posted on:

Location Type: Hybrid

Location: AnnapolisMarylandUnited States

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About the role

  • Proactively assess organizational needs and collaborate with stakeholders to design and engineer secure network solutions aligned with operational requirements.
  • Lead and support project-based efforts involving the design, deployment, installation, and troubleshooting of secure data networking systems.
  • Conduct technical assessments and deliver end-to-end design and implementation services for enterprise network and security environments.
  • Create detailed technical documentation, including diagrams and written design materials, and manage implementations through final acceptance.
  • Support internal teams with capacity planning, ongoing maintenance, monitoring, and evaluation of secure data communications infrastructure.
  • Lead or contribute to initiatives migrating legacy network security platforms to modern, next-generation technologies, supporting defense-in-depth strategies across the full solution lifecycle.
  • Provide advanced troubleshooting and threat remediation support for network security technologies, assisting engineering teams during critical incidents.
  • Partner with engineering staff to implement configuration standards, change management practices, and standard operating procedures for secure network solution.
  • Coordinate and guide team activities, including scheduling work and supporting issue resolution to ensure timely and accurate resolution of end-user and system issues.

Requirements

  • Associate degree or higher
  • Active certifications in both: Palo Alto Networks Certified Network Security Administrator (PCNSA) or Palo Alto Networks Network Security Professional
  • Cisco Certified Network Associate (CCNA) Enterprise or CCNA Security
  • Minimum of five years of hands-on experience working with Palo Alto Networks security technologies, including next-generation firewalls, intrusion detection and prevention, content filtering, VPN implementation, data loss prevention, and TLS/SSL inspection
  • At least four years of experience designing, configuring, and supporting complex Cisco-based network environments, including switching, routing, and wireless infrastructure
  • Three or more years of experience supporting reverse proxy and load-balancing solutions, including platforms such as A10 Networks
  • Two years of experience implementing and supporting Network Access Control solutions, including Cisco Identity Services Engine (ISE), RADIUS-based authentication, and Access Control Lists (ACLs)
  • Broad experience across enterprise networking and security disciplines, including: Implementing Microsoft-based multi-factor authentication solutions
  • Supporting cloud-based virtual networking and security services
  • Applying 802.1x authentication standards in both wired and wireless environments
  • Designing and supporting scalable routing protocols such as EIGRP, OSPF, and BGP
  • Implementing microsegmentation within enterprise data center environments
  • Managing digital certificates and Public Key Infrastructure (PKI)
  • Performing vulnerability assessment and remediation using tools such as Nessus and NMAP across Windows, Unix, and Linux systems
  • Conducting packet and protocol analysis using tools such as Wireshark, Riverbed, OpNet, and network taps
  • Utilizing centralized management and monitoring platforms including Panorama and SolarWinds
  • Working knowledge of major server and desktop operating systems and supporting utilities
  • Demonstrated ability to work independently on complex technical issues, mentor junior engineers, and provide technical guidance
  • Proven experience producing clear, detailed technical documentation, including network diagrams, design artifacts, project plans, schedules, and user documentation.
Benefits
  • Professional development opportunities
  • Health insurance

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard skills
network designnetwork securityPalo Alto NetworksCisco networkingload balancingNetwork Access Controlmulti-factor authenticationrouting protocolsmicrosegmentationvulnerability assessment
Soft skills
collaborationleadershiptechnical documentationproblem-solvingmentoringcommunicationproject managementcapacity planningissue resolutionindependent work
Certifications
Palo Alto Networks Certified Network Security Administrator (PCNSA)Palo Alto Networks Network Security ProfessionalCisco Certified Network Associate (CCNA) EnterpriseCCNA Security