Information System Security Officer - Mid

ManTech is seeking a motivated, career and customer-oriented Information System Security Officer - Mid (ISSO) to join our team in the Chantilly, VA area. A qualified ISSO will ensure that the appropriate operational security posture is maintained for assigned information systems and as such, works in close collaboration with the Information System Security Manager (ISSM). Ensure that cyber security requirements are effectively integrated into information systems' operations, management, and documentation. Provide critical systems, application and infrastructure support to the customer. Work with a team across multiple technical areas to include security, and systems administration. Offers a great opportunity for technical and professional growth. Responsibilities include, but are not limited to: • Controlling, labeling, virus scanning, and appropriately transferring data between information systems at varying classification levels. • Inspecting computer hardware prior to disposal. • Assessing and responding to security-related requests within various ticketing systems. • Analyzing new software requests. • Maintaining operational security posture for information systems. • Performing risk assessment analysis to support Assessment and Authorization (A&A). • Preparing and reviewing A&A documentation in accordance with ICD 503. • Supporting industry partners with their A&A efforts. • Prepare system documentation for assessment in accordance with the Risk Management Framework (RMF); identify deficiencies and provide recommendations for solutions; track findings with Plan of Action and Milestones (POA&M) through mitigation and risk acceptance. • Create security policies and maintain existing information system security documentation • Conduct periodic and continuous reviews of the system to ensure compliance with the authorization package; perform Nessus scans and coordinate with O&M support to correct. • Conduct daily, weekly and monthly audit review and management of the audit collection system. • Continuously review/evaluate best practices for implementing comprehensive audit program. • Implement vulnerability management programs, including tracking and addressing IAVAs and security patches, accessing applicability to existing systems, and ensuring closure. • Implement media control and data transfer policies. Basic Qualifications: • Bachelor’s degree and 8 or more years of relevant experience. • Familiarity with information system security principles. • Ability to build rapport with military, civilian, and contractor personnel at all levels. • Knowledge of security-related IC and DoD policies, procedures and operating instructions. • One of the following certifications required Information Assurance Management (IAM) Level II (CAP, GSLC, CISM, CASP, CISSP, Security+) level, or higher certification. • Experience with Insider threat is highly desired. • Ability to travel up to 25% Security Clearance Requirements: Active/current TS/SCI with Polygraph is required Physical requirements: • Must be able to be in a stationary position more than 50% of the time • Must be able to communicate, converse, and exchange information with peers and senior personnel • Constantly operates a computer and other office productivity machinery, such as a computer ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.