New 
Cyber Defense Incident Responder
 Quadrant, Inc. | |
 United States, D.C., Washington | |
 Aug 18, 2025 | |
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Cyber Defense Incident Responder Washington, DC Pay From $110,000 per year MUST: Active DoD Top Secret Clearance 7+ years of hands-on technical experience in Network Management and experience directly performing configurations and security implementation on LAN and WAN equipment Implementing, maintaining, and improving established network security practices Applying ITIL or equivalent Change Management In-depth knowledge of network encryption, secure network topology and operating network equipment including hubs, routers, switches, bridges, servers, transmission media, and related logical & physical domains Knowledge of cloud-based networking, security, and best practices Implement network threat detection and prevention rules and data control methods Installing, configuring, and troubleshooting LAN and WAN components such as routers, hubs, switches. Establishing a routing scheme Operate different electronic communication systems and methods (e.g., e-mail, VOIP, IM, web forums, Direct Video Broadcasts) Interpret the information collected by network tools (e.g., Microsoft Defender, FireEye, Akamai and packet capture) Configuring and utilizing network protection components (e.g., Firewalls, VPNs, network intrusion detection systems) Implementing and testing network infrastructure contingency and recovery plans Understanding of applying various subnet techniques (e.g., CIDR) is desired Management experience is a plus Excellent communication skills both written and verbal Strong interpersonal skills with the ability to work well with clients, senior leadership and peers alike Strong attention to details and solid documentation skills At least 1 active Certification addressing system security, network infrastructure, access control, cryptography, assessments and audits, and organizational security Bachelor's Degree is required DUTIES: Ideal candidate will be a senior member of the security team responsible to lead, facilitate and advise via the Incident Response lifecycle across the Department against 24/7 threats/vulnerabilities/events Advise leadership through multi-vector threat remediation and capabilities enhancement With other senior members effectively lead and advise Security Operations and Infrastructure teams regarding threats and vulnerabilities mitigation procedures and system(s) enhancement(s) Test and maintain network infrastructure including software and hardware devices Coordinate and communicate with multi-partner teams/services regarding 24/7 security posture and national regulatory requirements Learn and foster knowledge and skills training to adhere to and expand security, cybersecurity, and contingency requirements Mentor SOC team members regarding procedures, schedules, training, event & tools management, and performance requirements Develop and implement best-practice network security, backup, and recovery procedures Diagnose network connectivity and performance issues during events and incidents Integrate new systems into existing network and security architecture Monitor network capacity, performance and advise during network patching, expansion, and capability growth to ensure safeguarding of data/information against threats and vulnerabilities Quadrant is an affirmative action/equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, status as a protected veteran, or status as an individual with a disability. "Healthcare benefits are offered to all eligible employees according to compliance mandated by the Affordable Care Act". | |