Designs and defines system architecture for new or existing computer systems. Work in a multi-vendor firewall environment supporting Juniper and Cisco firewalls. Support multi-context firewall environment. Troubleshoot high level firewall issues using TCPDUMP as a tool to sniff and analyze traffic. Under general direction, uses current information security technology disciplines and practices to ensure the confidentiality, integrity and availability of corporate information assets in accordance with established standards and procedures. Develops and maintains knowledgebase on changing regulatory, threat, and technology landscapes to continually develop or maintain security policies and standards, and ensure compliance throughout the organization. 1. Performs complex systems development and design work that may include logic design, I/O design, firmware development, model formulation, manufacturing and development cost projections, computer architecture analysis and design, and analog or digital systems engineering. 2. Performs systems modeling, simulation, and analysis. 3. Participates in the upgrading of operating systems and design of systems enhancements. 4. Provides input for documentation on new or existing systems. 5. Develops and conducts tests to ensure systems meet documented user requirements. 6. Identifies, analyzes, and resolves system problems. 7. Provides system/equipment/specialized training and technical guidance. 8. Determines system specifications, input/output processes, and working parameters for hardware/software compatibility. 9. May provide guidance and work leadership to less-experienced systems engineers. 10. Maintains current knowledge of relevant technology as assigned. 11. Participates in special projects as assigned. Education Bachelors Degree in Computer Science, Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience. Qualifications 5-8 years of related systems engineering experience. 8570 Compliance is required. Security + CE is required A vendor certification such as Cisco CCNA/CCNA Security, CCNP Security, or Juniper JNCIA-Junos/JNCIS-SEC is also required.Ability to be available 24x7 to support scheduled network changes. As a trusted systems integrator for more than 50 years, General Dynamics Information Technology provides information technology (IT), systems engineering, professional services and simulation and training to customers in the defense, federal civilian government, health, homeland security, intelligence, state and local government and commercial sectors.With approximately 32,000 professionals worldwide, the company delivers IT enterprise solutions, manages large-scale, mission-critical IT programs and provides mission support services.GDIT is an Equal Opportunity/Affirmative Action Employer - Minorities/Females/Protected Veterans/Individuals with Disabilities.