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ISSO Security Clearance

Job in Washington, District of Columbia, 20007, USA
Listing for: TEKsystems c/o Allegis Group
Full Time position
Listed on 2026-02-27
Job specializations:
  • IT/Tech
    Cybersecurity
Job Description & How to Apply Below
Position: ISSO with Security Clearance
Core Responsibilities Achieve ATOs for software deployments across multiple U.S. Government customers with minimal oversight.
Partner with engineers to analyze systems, interpret security requirements, and plan effective security control implementations.
Provide outstanding customer service, policy expertise, and high-quality security documentation.
Serve as the primary on-site point of contact for one or more U.S. Government customers on cybersecurity and compliance matters.
Independently interpret vulnerability scan results from tools such as ACAS (Tenable Nessus) and SCAP (STIG benchmarks), and manage Plans of Actions and Milestones (POA&Ms) through remediation. What We Value Strong ability to interpret and communicate U.S. Government cybersecurity policy to technical and non-technical audiences.
Proven ability to multitask and perform under pressure using strong time management and organizational skills.
Experience working in both traditional on‑premises environments and cloud environments such as Amazon Web Services (AWS).
Hands-on experience accrediting IT systems against U.S. Government standards including NIST SP 800‑53, CNSSI 1253, and DISA STIGs using frameworks such as DoD RMF, ICD 503, or DIACAP.
Proactive mindset with the ability to identify potential issues early and propose creative, practical solutions. What We Require Active U.S. DoD Top Secret clearance with SCI eligibility.
Active DoD 8140 or 8570 certification (e.g., CISSP, Security+).
Active IAT II certification.
Minimum of 2 years’ experience directly supporting a customer’s ATO/RMF process.
Demonstrated experience using accreditation management tools such as eMASS or XACTA.
Ability to work on-site at the customer location five days per week. Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms.  If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)
· This position requires an active DoD Clearance (Secret, Top Secret, Top Secret/SCI) or the ability to be obtain an (Interim Secret, Interim Top Secret)
· Because an active or interim DoD clearance is required, U.S. Citizenship is required
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