Information System Security Officer (ISSO)- Junior

Cyber Defense Technologies
Chantilly, Loudoun County, VA
Overview : CDT is looking to add a 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 with CI Poly is required. Candidates who do not meet these clearance requirements will not be considered.

Qualifications:
  • Master’s Degree and 2 years work experience, Bachelor’s Degree and 3 years of work experience or equivalent, Associates Degree and 6 years of work experience or equivalent, High School/GED and 8 years of work experience or equivalent.
Responsibilities:
  • Performs assessments of systems and networks within the networking environment or enclave and identifies where those systems/networks deviate from acceptable configurations, enclave policy, or local policy. This is achieved through passive evaluations (compliance audits) and active evaluations (vulnerability assessments).
  • Establishes strict program control processes to ensure mitigation of risks and supports for obtaining certification and accreditation of systems. This includes process support, analysis support, coordination support, security certification test support, security documentation support, investigations, software research, hardware introduction and release, emerging technology research inspections, and periodic audits.
  • Assists in the implementation of required government policy (e.g.,, NISPOM, DCID 6/3), and makes recommendations on process tailoring.
  • Supports the formal Security Test & Evaluation (ST&E) required by each government accrediting authority through pre-test preparations, participation in the tests, analysis of the results, and preparation of required reports.
  • Performs analyses to validate established security requirements and recommends additional security requirements and safeguards where required.
  • Supports the formal Security Test & Evaluation (ST&E) required by each government accrediting authority through pre-test preparations, participation in the tests, analysis of the results, and preparation of required reports.
  • Periodically conducts a review of each system’s audits and monitors corrective actions until all actions are closed.
Desired Qualifications:
  • Provide guidance on system security, assessment and authorization issues, and INFOSEC policy and security vulnerabilities.
  • Support comprehensive investigations into all related data spills and IT incidents at both government and contractor sites.
  • Ability to troubleshoot technical configurations and make recommendations on the protection of classified and sensitive data.
  • Development and maintenance of all SSP documentation and risk analysis.
  • Responsible reporting of security related incidents including development of protective or corrective measures to discover vulnerabilities.
  • Familiarity with conducting research and analysis, network and information system security principles and best practices, and controlling, labeling, virus scanning, and transferring data between information systems at varying classification levels.
Why Join Cyber Defense Technologies?
At CDT, we offer a collaborative and inclusive work environment where your expertise can help shape the future of cybersecurity and engineering solutions.

Compensation and Benefits:
  • Competitive salary based on experience.
  • Comprehensive benefits package, including health, dental, and retirement plans.
  • Opportunities for professional development and career advancement.
CDT is committed to hiring and retaining a diverse workforce. We are 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.

Apply Now:
If you are a proactive ISSO and thrive in dynamic environments, we encourage you to apply and join the CDT team!
Posted 2025-10-06

Recommended Jobs

Technical Product Analyst - SOW

System One
Ashburn, VA

Technical Product Analyst  Location: REMOTE Pay Rate: Negotiable, open to W2 and C2C options Position Type: Multiyear Contract Requirements  We are seeking a highly technical, detail ori…

View Details
Posted 2025-09-26

Full Stack Software Engineer (AngularJS, Jenkins, Python, .Net, Java, PHP, Chef, Ansible, AWS, Azure, JIRA, Confluence) in Richmond or Mclean, VA

DBA Web Technologies
McLean, VA

Full Stack Software Engineer (AngularJS, Jenkins, Python, .Net, Java, PHP, Chef, Ansible, AWS, Azure, JIRA, Confluence) in Richmond or Mclean, VA Angular JS, AWS, Azure, Java, JavaScript, Jenkins, Ji…

View Details
Posted 2025-08-06

Preschool Teachers, Except Special Education

Amazing Childcare and Learning Academy
Hampton, VA

Summary Amazing Childcare and Learning Academy is dedicated to providing high-quality early childhood education with a focus on kindergarten readiness. Our program utilizes a state-approved curr…

View Details
Posted 2025-09-25

Strategic Thinker (N)

SimIS Inc.
Norfolk, VA

ONSITE Who We Are : Founded in 2007, SimIS Inc. is an innovative information technology solution Veteran Owned Small Business (VOSB) that models future environments, requirements, and capabilitie…

View Details
Posted 2025-09-25

Proposal Writer

gTANGIBLE Corporation
Alexandria, VA

Description   gTANGIBLE Corporation (gTC), www.gtangible.com, is a C corporation and a registered Government contractor that provides services and solutions in: ~National Security Programs ~Pr…

View Details
Posted 2025-08-06

PLM/Mold Laboratory Analyst - Eurofins Built Environment Testing - Chantilly, VA

Eurofins USA Environment Testing
Chantilly, Loudoun County, VA

Eurofins Scientific is an international life sciences company, providing a unique range of analytical testing services to clients across multiple industries, to make life and our environment safe…

View Details
Posted 2025-09-25

PREMIUM SUPERVISOR

Compass Group
Richmond, VA

    Position Title: [[title]] Pay Range : $20.00 to $23.00  We Make Applying Easy! Want to apply to this job via text messaging? Text JOB to 75000  and search requisition ID number 1461786 …

View Details
Posted 2025-09-09

Real Estate Financial Analyst

Kruger Inc.
Arlington, VA

Summary Kruger Real Estate is a private investment vehicle of the Kruger family focused on the acquisition and development of exceptional real estate properties. Kruger partners with established r…

View Details
Posted 2025-09-30

Customer Support Data Center Technician - Cohort Hiring Q1' 2026 - Military Talent Programs

Equinix
Ashburn, VA

Who are we? Equinix is the world’s digital infrastructure company®, shortening the path to connectivity to enable the innovations that enrich our work, life and planet.  A place where bold idea…

View Details
Posted 2025-09-22