Information System Security Officer
Cyber Defense Technologies
Overview: CDT is looking to add an experienced Information Systems Security Officer maintain security operations to various specialized applications. This position will be onsite in Chantilly, VA. Clearance : An active Top Secret/SCI clearance with CI Poly is required. Candidates who do not meet these clearance requirements will not be considered. Responsibilities Thorough understanding and application of network security principles, practices, and implementations. Working knowledge of cross-functional integration of information systems into a physical security environment. Working knowledge of system functions, security policies, technical security safeguards, and operational security measures. Understanding of system methodologies including but not limited to client server, web hosting, web content servers, policy servers, directory servers, firewalls, WAN, LAN, switches, and routers. Familiarity with detecting and preventing computer security compromises in a networked environment. Working knowledge of configuration management; system maintenance; and integration testing. Proficient in the use of tools used to prevent and/or negate malicious code. Understanding of COTS tools that scan at the physical layer of all removable and fixed media types including but not limited to: (CDs, hard drives, thumb drives, Zip/Jazz, etc.). Ability to decipher and explain in clear language Intelligence Community Directive (ICD) 503. Ability to support forensics and evidentiary preservation. Ability to troubleshoot technical configurations and make recommendations on the protection of classified and sensitive data. Demonstrated ability to translate technical information and information technology jargon into plain English. Ability to apply a risk management philosophy when faced with security challenges and the ability to articulate the pro’s and con’s in a clear concise manner. Demonstrated proficiency with the following computer operating systems (e.g. Microsoft Windows, LINUX, UNIX, Mac OS, etc.). Analytical ability to decipher complex technical configuration management documents. Demonstrated proficiency with database maintenance. Strong ability to elicit, articulate, and document information in a well-organized manner. Demonstrated ability to work independent of close supervision. Demonstrated experience with Microsoft Office Suite. Working knowledge of all applicable NRO, IC, DoD policies, procedures and operating instructions related to Information Technology, Information Assurance, Information Management (IT/IA/IM). Excellent communication, interpersonal, and team-building skills to engender rapport with the military personnel, civilians, and other contractors at all levels. An ability to prioritize work to meet deadlines, and to manage the workflow of the ISSO team. Demonstrated ability to correlate audit results between various systems and/or users and notify the ISSM of any discrepancies. Master’s Degree and 2 years relevant information assurance or cybersecurity experience, Bachelor’s Degree and 3 years relevant information assurance or cybersecurity experience, Associates Degree and 6 years relevant information assurance or cybersecurity experience, High School/GED and 8 years relevant information assurance or cybersecurity experience. Desired Qualifications Mentor, provide guidance and instructional aide to Associate and Junior ISSOs Familiarity with conducting research and analysis, network and information system security principles and best practices Knowledge of information security program management and project management principles and techniques. Knowledge of security violation mitigation measures and incident reporting actions. Knowledge of computer networking concepts and protocols, and network security methodologies. Knowledge of host/network access control mechanisms (e.g., access control list). Knowledge of cybersecurity principles used to manage risks related to the use, processing, storage, and transmission of information or data. CDT is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. #J-18808-Ljbffr
- ...Fulcrum Vets is looking to add an Information Systems Security Officer (ISSO) to provide advice and assistance to secure configuration and operations to the customer’s IT assets. This position will be onsite in Chantilly, VA. Clearance: An active Top Secret/SCI clearance...SuggestedFull timeFlexible hours
- ...Information Systems Security Officer (ISSO) LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a dedicated and detail-oriented Information Systems Security Officer (ISSO) to join...SuggestedTemporary workFor contractorsImmediate startFlexible hours
- ...Overview Systems Planning and Analysis, Inc. (SPA) delivers high-... ...solutions to complex national security issues. With over 50 years of... ...Cybersecurity Team under SPA’s Information Technology Department... ...Information Systems Security Officer (ISSO) for multiple systems operating...SuggestedWork experience placementImmediate start
- ...Investigation's Criminal Justice Information Services Division's... ...: Chantilly, VA Who are you? Security-cleared Professional: A TS/SCI... ...Active Certified Information Systems Security Professional (CISSP)... ...Information Systems Security Officer (ISSO) is responsible for maintaining...SuggestedTemporary workWork at office
$110k - $180k
...guide the implementation of security requirements, accreditation and... ...of hardware and software systems. The successful candidate will... ...the security posture for an information system ensuring policies, standards... ...Contractor Program Security Officer (CPSO) in support of...SuggestedFull timeContract workFor contractorsImmediate start$77.6k - $176k
...Job Number: R0236862 Information Systems Security Officer The Opportunity Support mission-critical national security programs as the lead Information Systems Security Officer (ISSO) overseeing the full lifecycle of Risk Management Framework (RMF) authorization activities...Full timeContract workPart timeLocal areaRemote work- ...Information System Security Officer LOCATION Chantilly, VA 20151 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a dedicated and detail-oriented Information System Security Officer (ISSO) to join our cybersecurity...Temporary workFor contractorsImmediate startFlexible hours
- ...Requisition #: 1547 Job Title: Information System Security Officer Location: Ashburn, VA Job Description Responsible for ensuring the security of an organization's information systems. Their primary role is to oversee the design, implementation, and management of security...Work experience placementWork at office
$70k - $115k
...Overview Steampunk wants you to be an Information System Security Officer (ISSO) on our team to support a government customer. In this challenging and rewarding role you’ll be asked take initiative, foster organization, responsibility, customer service skills, and the...Local areaFlexible hours$62k - $141k
...Information System Security Officer We’re looking for an Information System Security Officer (ISSO) responsible for assessing and requesting customer authorization for company‑managed classified endpoints, servers, networks, and security appliances. This involves applying...Full timeContract workPart timeLocal area$90k - $140k
...Overview Steampunk wants you to be a SeniorInformation System Security Officer (ISSO) . The primary responsibilities for the position are to... ...sound judgement with regards to sensitive and confidential information. Proactively create, monitor and update the status of POA&...Local areaFlexible hours- ...ensure the well being and support of U.S. citizens. Job Description Job Description: GDIT is seeking an Information Systems Security Officer (ISSO) to join our team supporting the U.S. Environmental Protection Agency (EPA) Office of Land and Emergency Management...Work at office
$150k - $170k
National Security & Defense At Jacobs... ...Jacobs is looking for a Information System Security Officer to join our Sensor Processing Team. Candidates must have...Full timeWork experience placement- ...Description Job Description ISSO Employment Type: Full-Time, Experienced Department: Information Technology CGS is seeking an Information Systems Security Officer (ISSO) with DIACAP and/or RMF experience who has deep expertise in security assessment...Full timeLocal areaFlexible hours
$124.09k - $149.5k
...Management Job Qualifications: Skills: Cybersecurity, Information System Security, It Communication, IT Security Management, NIST Risk... ...Description: GDIT is seeking an Information Systems Security Officer (ISSO) to join our team supporting the U.S. Environmental...Full timeTemporary workPart timeWork at officeImmediate startRemote workWorldwideFlexible hours$100k - $140k
...Intelligence Communities in support of national security. Rincon Research Corporation seeks a... ...position at its Chantilly, Virginia office. The security position will primarily be focused on providing Information System Security Officer (ISSO) support for local and...Full timeTemporary workFor contractorsWork at officeLocal areaImmediate startRemote workFlexible hours$128.89k - $184.12k
Search by Keyword (use Keyword for Remote Positions) Select how often (in days) to receive an alert: Information System Security Officer (Engineer Info Assurance 4) Location: Fairfax, VA, Virginia, United States Requisition Number:27373 Required Travel: 0 - 10% Employment...Full timeContract workWork at officeLocal areaRemote workWorldwide- ...role, you will identify vulnerabilities and test the security of networks, applications, and systems by simulating real-world attacks. You will... ...DEGREE (Focus) Cybersecurity, Computer Science, Information Technology, Information Security, Network Security,...Temporary workFor contractorsImmediate startFlexible hours
- ...knowledgeable and detail-oriented ISSO to support security compliance, risk management, and... ...for Salesforce and cloud-based federal systems. The ISSO will ensure continuous... ...~ Bachelors degree in Cybersecurity, Information Systems, or related field ~3+ years of...Work from homeFlexible hours
- ...network states, etc. Review evidentiary data (log files, file system artifacts, metadata, memory captures, etc.) to determine presence... ...of interest found in evidence, integrity checks, and suggested security actions determined from the evidence provided for both...Work experience placement
- ...requires travel for on‑site collection efforts as well as an in‑office presence at the primary firm office, which includes the... ...veteran. Contact Explore additional job opportunities with CGS on our Job Board: For more information about CGS please #J-18808-Ljbffr...Full timeWork at officeRemote workFlexible hours
- ...Job Description Job Description What you will be doing: Mantis Security is seeking for immediate placement a highly qualified and technical Information Systems Security Officer (ISSO) to lead the Assessment and Authorization (A&A) for multiple analytic mission systems...Immediate start
$140k - $160k
...Job Description Job Description Dark Wolf is seeking an I nformation System Security Officer (ISSO) to lead a collaborative team to develop, manage, and maintain information system security Assessment and Authorization (A&A) packages. This could include supporting...Full timeFor contractorsFlexible hours- ...Job Description Job Description Altus Consulting Seeks an Information Systems Security Officer to Champion Cybersecurity If you find exhilaration in safeguarding digital assets and possess a deep understanding of cybersecurity frameworks and best practices, Altus...Contract work
- Secure IT Service Management, a division of Paragone Solutions, Inc., is seeking an Information Systems Security Officer (ISSO) to join our team in a remote, temp-to-perm position. The ideal candidate will have extensive knowledge and expertise with Microsoft's security...Permanent employmentTemporary workFor contractorsWork at officeRemote work
$124.22k - $131.01k
...Responsibilities for this Position Information System Security Officer (ISSO) ID: 2026-73013 US-VA-Manassas Required Clearance: Top Secret, obtainable within reasonable time based on requirements Posted Date: 6/10/2026 Category: Information Technology...Full timeWork at officeFlexible hours- ...serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our... ...Seize your opportunity to make a personal impact as an Information Systems Security Officer supporting customer activities. GDIT is your place to make...
$124k - $168k
...mentoring junior testers, and providing technical guidance to stakeholders. Possess expertise in network protocols, application security, social engineering, and advanced scripting. Designing and leading complex penetration tests, developing customized tools and...Work experience placement- ...Onsite Type of environment: Office Noise level: Medium... ...than 10% WORK AUTHORIZATION/SECURITY CLEARANCE U.S. Citizen... ...ability to adjust focus. OTHER INFORMATION Please note this job description... ...are seeking a Information System Security Officer (ISSO) to...Full timeContract workTemporary workFor contractorsWork at officeLocal areaRemote workMonday to FridayShift workNight shiftDay shift
- ...experienced Penetration Tester/Red Team Security Engineer to support a government customer... ...evaluating environments, applications, systems or processes to discover weaknesses, and... ...and clearly translate highly technical information to senior management in a way that supports...Work experience placement
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