Sr. ISSO TS/SCI Poly

Leidos has a new and exciting opportunity for a Senior Information System Security Officer in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! Senior Information System Security Officer (ISSO) Leidos currently has an opening for a Senior Information System Security Officer (ISSO) to work at our Annapolis Junction, MD location. The selected candidate will act as an ISSO for a large software development program which includes software maintenance and development, IT support (Network/Workstation/Server), systems integration and life cycle support, enterprise application development, network engineering, and information systems security (ISS). The candidate will work with other security professionals in developing and implementing strategies to detect and mitigate threats to information systems, protect critical data sets, and provide assessments of system and network vulnerabilities. Primary Roles and Responsibilities Provide support for implementing and enforcing information systems security policies, standards, and methodologies. Assist in the evaluation of security solutions to ensure they meet security requirements for processing multiple types of information. Assist with the Configuration Management for information system security software, hardware, and firmware. Analyze threats and develop and implement best practice methodologies for incident detection, reporting, and vulnerability remediation. Maintain records on workstations, servers, routers, firewalls, intelligent hubs, network switches, etc. to include system upgrades. Evaluate security solutions to ensure they meet security requirements for processing information. Maintain operational security posture for information systems. Provide support to the Information System Security Manager (ISSM) for maintaining the appropriate operational IA posture for a system/program/enclave. Develop and maintain documentation for Certification & Accreditation in accordance with specified policies. Develop and update system security plans and other IA documentation. Provide support for Information Assurance Vulnerability Alerts (IAVAs) management (initiating IAVA responses and system security scans, completing remediation, extending IAVA patches and security updates to designated sites, etc.). Provide CM for security-relevant information system software, hardware, and firmware. Develop system security policy and ensure compliance. Administer the user identification and authentication mechanisms of the Information System.

Master's degree and at least 15 years of relevant experience. TS/SCI with polygraph security clearance. Must have at least 10 years of experience as ISSO working independently, and/or on teams maintaining secure information system operations in isolated, connected and standalone environments. Must have at least 5 years of experience using tools to support IAVA management. Must