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Information Systems Security Engineeer Security Clearance

Job in Fairfax, Fairfax County, Virginia, 22030, USA
Listing for: NorthHill Technology Resources
Full Time position
Listed on 2026-07-24
Job specializations:
  • IT/Tech
    Cybersecurity, Information Security & Data Protection, Systems Engineer, Network Security
Job Description & How to Apply Below
Position: Information Systems Security Engineeer with Security Clearance
Job Description:

One of our key clients has an immediate opening for an Information System Security Engineer (ISSE) with an active TS/SCI w/CI Poly Clearance to work Full Time in their Fairfax, VA headquarters. The role of the ISSE is to bridge the gap between high level security policies/requirements and technical/operational implementation of those requirements. Candidates should have in-depth understanding of the cybersecurity policies and procedures for Government (DoD, Intelligence Community) sectors information systems and sufficient technical knowledge and experience to implement them.

The ISSE will work closely and effectively with the Information System Security Manager (ISSM) ISSM, and the Program Manger on all aspects of their development and implementation programs. Candidates should have in-depth understanding of the cybersecurity policies and procedures for Government sector information systems and sufficient technical knowledge and experience to implement them. The ISSE will provide guidance, standards, and oversight to the program/development teams as they work towards accreditation and then to maintain the accreditation.

The candidate will contribute to the team’s successful Assessment and Authorization (A&A) process activities (ICD-503 RMF) and related documentation such as security concept of operations, systems security plans, security control assessments, contingency plans, configuration management plans, incident response plans, plan of actions and milestones, risk management plans, vulnerability and compliance scanning, and/or vulnerability management plans. The ISSE will be an experienced System Administrator and Cyber Security Expert.

The candidate will be supporting a larger team of developers, engineers, and analysts all charged with expanding, operating, and maintaining information systems built upon hundreds of Linux instances on virtual and bare metal hardware. Team responsibilities include Linux system build automation, network architecture and implementation, all facets of cyber security compliance, deployment and management of core subsystems and services. The ISSE will assume responsibility for ICD-503 RMF process for these multiple information systems including patching, scans, reports, documentation, coordinating plans of actions and milestones, audit log reviews and other related duties.

The ISSE will help determine and recommend appropriate solutions and implementations to help meet program needs. Candidate must possess the ability to communicate effectively and be flexible, adaptable, and willing to take ownership of projects. Candidate will have several technical areas of primary responsibility depending on experience and will be expected to cross train and support other areas as needed.

Superior attention to detail is required. Must exhibit positive attitude and good customer service skills in sometimes stressful situations, such as during outage troubleshooting and resolution.

Required Skills:

 Active TS/SCI + CI Poly
 Information Assurance (IA) and Information Security (Info Sec) experience working with Intelligence Community (IC) customers, which includes developing and reviewing security concept of operations, systems security plans, security control assessments, contingency plans, configuration management plans, incident response plans, plan of actions and milestones, risk management plans, vulnerability and compliance scanning, and/or vulnerability management plans. Must have significant expertise in ICD-503 A&A process and documentation preparation.
 Security engineering experience; which includes systems engineering principles, configuration management, supply chain, requirements analysis, system development (software and hardware); network security architecture concepts (topology, protocols, components); and/or IT security principles and methods (firewalls, demilitarized zones, encryption).
 Required experience with ICD-503 security frameworks to include A&A process and documentation preparation. Also desired is experience in NIST SP 800-37, CNSS publications, and other Risk Management Framework (RMF) processes.
 Experience providing…
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