Information Assurance System Security Engineer (ISSE) III

General Dynamics Information Technology
Arlington, VA
Public Trust: None
Requisition Type: Regular
Your Impact

Own your opportunity to support our nation's defense. Make an impact by connecting and securing critical operations across the globe, keeping our country safe and secure.

Job Description

Transform technology into opportunity as an Information Assurance System Security Engineer (ISSE) III with GDIT. A career in enterprise IT means connecting and enhancing the systems that matter most. At GDIT you’ll be at the forefront of innovation and play a meaningful part in improving how agencies operate.

At GDIT, people are our differentiator. As an ISSE III you will help ensure today is safe and tomorrow is smarter. The ISSE III is primarily responsible for conducting information system security engineering activities with a focus on lifecycle of current systems and future requirement scoping. The position will collect and process the captured information security requirements and ensures
that the requirements are effectively integrated into information systems through purposeful security architecting, design, development, and configuration. The position is an integral part of the development team designing and developing organizational information systems or upgrading legacy systems.

The ISSE employs best practices when implementing security requirements within an information system including software engineering methodologies, system/security engineering principles, secure design, secure
architecture, and secure coding techniques. The position will provide “day-to-day” support for Collateral, Sensitive Compartmented Information (SCI) and Special Access Program (SAP) activities.

HOW AN INFORMATION SECURITY ARCHITECT WILL MAKE AN IMPACT:
  • Perform oversight of the development, implementation and evaluation of information system security program policy; special emphasis placed upon integration of existing SAP network infrastructures
  • Perform analysis of network security, based upon the Risk Management Framework (RMF) with emphasize on Joint Special Access Program Implementation Guide (JSIG) authorization process
  • Provides expert support, research and analysis of exceptionally complex problems, and processes relating to them
  • Provides expert level consultation and technical services on all aspects of Information Security
  • Serves as technical expert to the Cybersecurity Assessment Program providing technical direction, interpretation and alternatives to complex problems
  • Builds IA into systems deployed to operational environments
  • Assists architects and systems developers in the identification and implementation of appropriate information security functionality to ensure uniform application of DoD and other agencies security policy and enterprise solutions
  • Enforce the design and implementation of trusted relations among external systems and architectures.
  • Assesses and mitigates system security threats/risks throughout the program life cycle
  • Contributes to the security planning, assessment, risk analysis, risk management, certification and awareness activities for system and networking operations
  • Thinks independently and demonstrates exceptional written and oral communications skills. Applies advanced technical principles, theories, and concepts
  • Contributes to the development of new principles, concepts, and methodologies
  • Works on unusually complex technical problems and provides highly innovative and ingenious solutions
  • Lead a team of System Security Engineers and Certification and Accreditation Analysts responsible for ensuring the customers national and international security interests are protected as support equipment are designed and tested
  • Recommends cybersecurity software tools and assists in the development of software tool requirements and selection criteria to include the development of product specific STIGs from applicable DISA SRGs
  • Review ISSE related designs and provides security compliance recommendations
  • Leads technical teams in implementation of predetermined long-range goals and objectives
  • Supports customer and SAP community IA working groups, participate in SSE IPT reviews
  • Provides expert level consultation and technical services on all aspects of Information Security
  • Review ISSE related designs and provides security compliance recommendations
  • Develop and provide IA risk management recommendations to the customer
  • Provide ISSE support for Mission and Training systems design and development
  • Assist with development and maintenance of the Program Protection Plan
  • Assist with site activation activities and design reviews
  • Represent the customer in various ISSE related working groups, advisory groups, and advisory council meetings
  • Chair and or Co-Chair customer and SAP community IA working groups, participate in ISSE IPT reviews
  • Represent the customer in various SSE related working groups, advisory groups, and advisory council meetings
  • Strong background in Patch/Configuration management, DevOps, and tier 3 support
  • Assist team to design, integrate, and implement JSIG/RMF Continuous Monitoring tools and processes
  • Integrate COTS & GOTS products to collect, display and remediate a variety of automated system security and system operations/performance functions and metrics
  • Perform security assessments of servers/network devices/security appliances
  • Develop improvements to security assessments with regard to accuracy and efficiency
  • Integrate ancillary monitoring tools/capabilities with the enterprise security information and event management (SIEM) and create/tailor complex event alarms/rules and summary reports
  • Write and execute cybersecurity test procedures for validation of control compliance
  • Monitor/analyze output of cybersecurity related tools for reportable security incidents and residual risk
  • Analyze technical risk of emerging cybersecurity tools and processes
  • Work as part of a security incident response team as needed
  • Build operational Operations and Maintenance (O&M) checklists to maintain the service (daily, weekly, monthly, yearly O&M checklists); build Tactics, Techniques and Processes (TTPs) and Standard Operating Processes (SOPs) associated with service checklists
  • Integrate/Develop new techniques to improve Confidentiality, Integrity, and Availability for networks/systems operating at various classification levels
  • Advanced technical competency in one or more of the following supported platforms: Microsoft Windows Server, Active Directory, Red Hat Enterprise Linux servers, MS Hyper-V/VMWare/ESx/Xen Hypervisors, Enterprise networking/firewalls/intrusion detection/prevention systems, forensic analysis/vulnerability assessment, Group Policy management and configuration, Scripting, BMC Footprints, WSUS, , Lumension, Bitlocker, SQL Server 2012, TomCat, IIS, Windows Server 2012r2/2016, Win 10, Red Hat 6.5, Microsoft Office
  • Toolkits, SEIMs, Logrhythm, ACAS/Nessus/SCAP, mandatory/role-based access control concepts (e.g. SE Linux extensions to RHEL, PitBull, AppArmor, and Sentris) , video teleconferencing/VOIP, Oracle/MS SQL database security, and Apache/IIS Web server security

Other Requirements:

  • Must have expert knowledge of DoD, National and applicable service and agency security policy, manuals and standards.

WHAT YOU’LL NEED TO SUCCEED:

Experience:

  • 15+ years of experience
  • Prior performance in roles such as ISSO, ISSM, SCA, or SAP IT Technical Director
  • 2+ years SAP experience required

Education:

  • Master's degree OR Bachelor’s degree in a related field +2 years’ experience OR Associate’s degree in a related area + 4 years’ experience OR equivalent experience (6 years)

Certifications:

  • IASA E Level II or IASAE III (CASP+ CE, CISSP, CSSLP)

Security Clearance

  • TS with SCI eligibility
  • Willingness to submit to a CI polygraph

Work Requirements

Years of Experience

15 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Travel Required

10-25%

Citizenship

U.S. Citizenship Required

Posted 2026-04-27

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