Network Security Engineer
US-DC
Global Data Consultants
Req #: 3910
Type: Hourly
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Overview: GDC IT Solutions is currently seeking a Network Security Engineer to work in a hybrid capacity, with 3 days on-site per week at the Office of the Chief Financial Officer (OCFO) in Washington, D.C. This position requires candidates to reside within commuting distance of the DMV region and offers a mission-critical opportunity to design, secure, and optimize large-scale, multi-site enterprise networks. Responsibilities: * Design, configure, and maintain large-scale, multi-site network architectures aligned with OCFO security policies and procedures. * Monitor and analyze data traffic patterns to identify, resolve, and prevent network performance degradation or failures. * Configure and secure routers, switches, firewalls, and appliances in compliance with OCFO standards. * Monitor security infrastructure to detect and prevent breaches and unauthorized access. * Perform forensic and packet analysis to support incident investigations and improve network defense strategies. * Operate and manage security monitoring and logging systems. * Support and manage disaster recovery and production network environments. * Provide network design and architecture services, including secure WAN and remote access (e.g., IPsec, VPN). * Respond to and resolve complex technical issues with appropriate urgency; escalate when needed. * Identify recurring incidents, analyze trends, and implement solutions to reduce future issues and improve service delivery. * Collaborate with infrastructure staff to scope and implement network changes or enhancements. * Stay current on security threats, malware, and vulnerabilities, and advise on mitigation strategies. Qualifications: * Proven experience designing and managing large-scale, multi-site enterprise networks. * Deep knowledge of network security best practices, including system- and network-level attack mitigation methods. * Experience with Cisco Firepower (NGFW), Cisco ASA Firewalls, and Cisco ISE 2.0+. * Proficiency with secure remote access and WAN technologies such as IPsec and VPNs. * Experience with network security tools including Cisco AMP, NGFW, and Firepower Management Console. * Strong understanding of security routing protocols and secure network architectures. * Demonstrated ability to conduct forensic and packet-level analysis. * Excellent communication and problem-resolution skills in a customer-facing environment.
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