Network Security Engineer

Sabre Systems, Inc.
October 9, 2019
Job Type



Sabre is currently hiring a Network Security Engineer to support our customer in Aberdeen, MD. The selected candidate must be interested in working in a challenging, hands-on, development environment supporting the Department of Defense and other specialized customers. As a member of a diverse engineering team, the selected candidate works closely with application with development, networking, and security groups to ensure that new and existing technical solutions are tested and implemented in a manner to ensure that network access and security are maintained against current and emerging threats. The Network Security Engineer acts as a network security Subject Matter Expert (SME) ensuring the network security of largely mobile wireless Wide Area Networks.

The selected candidate should be familiar with:

  • Network security as well as have expertise in network infrastructures and network engineering
  • Work with other infrastructure, platform, and application team members to understand and enforce access and data protection policies within Access Control Lists (ACLs), firewall policies, IDC/IPS policies, change management of policies and configurations
  • Some network penetration and vulnerability assessment skills may be required

    Other Duties Include:

  • Provide specific security expertise to engineering teams
  • Areas include network design, security testing, authentication methods, implementing encryption, logging, and secure data transfer
  • Provide support for network and network security architecture that includes routers, switches, firewalls, proxies, VPNs, and load-balancers
  • Communicating and working with diverse teams
  • Provide deep expertise on authentication, entitlements, identity management, data leak prevention, data protection, validation checking, encryption, hashing, principle of lease privilege, software attack methodologies, etc.
  • Provide expertise on SFTP, firewall, DMZ design, IPSec, VPN, wireless technologies, network technologies, and protocols



  • Bachelor's degree (B.S.) in Computer Science, EE, or a related field
  • Five (5) years of experience in operating and engineering security infrastructure wired and wireless networks
  • Knowledge of implementation of advanced security solutions and vulnerability assessments, such aso Firewalls, UTMs, Application Proxy, VPNs, DDOS prevention, IDS/IPS, Email, Anti-virus, Malware, NAT, PAT, and ACLs, Nessus, Qualys, and Rapid 7. Configuration and management security, routing and networking platforms
  • Experience in planning, managing, and maintaining local area networks (LAN) and wide area networks (WAN)
  • One or more certifications such as SSCP, CISSP, SANS, Cisco CCIE, CCNP, or CCSP, Juniper JNCIA, CCDA, CCNA, CCENT, CCT, CCIE, CCDE, Network +, Security +, etc. preferred
  • Candidate must have an active DOD Secret Clearance or be a US Citizen with the ability to obtain a Department of Defense Secret Clearance


    Sabre Systems, Inc. is a quality driven, customer focused large business providing innovative solutions in the areas of Cyber, C4ISR, Business Intelligence and Data Analytics, and Enterprise Modernization to federal and civilian customers. Our mission is to ensure our customers have the technology, services, and expertise to overcome threats, maintain superiority, and quickly adapt to emerging obstacles. At Sabre, we're more than just a job - we're a team - and we care for and nurture our employees like family. If you want to be a part of creating and implementing enduring solutions that transform mission challenges into mission success – join Sabre!

    Sabre provides an excellent benefits package, which includes healthcare, paid days off, tuition reimbursement, and a 401K plan.

    We respect the unique perspectives that a diverse workforce of minorities, women, individuals with disabilities, and protected veterans brings not only to our company, but also to our customers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or national origin.


    EOE Minorities/Females/Disability/Veterans; VEVRAA Federal Contractor



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