Senior Information System Security Engineer

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

Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

Job Description

Senior Information System Security Engineer

Deliver security related solutions for enterprise information systems and network architectures as an Information System Security Engineer at GDIT. Here, you’ll tailor cutting-edge solutions to the unique requirements of our clients. With a career in systems security, you’ll ensure information systems, networks and architectures are secure and ready to support mission critical requirements.

At GDIT, people are our differentiator. As an Information System Security Engineer, you will help ensure today is safe and tomorrow is secure. Our work depends on Information Systems Security Engineers joining our team to protect data flows for a wide range of devices.

HOW AN INFORMATION SYSTEM SECURITY ENGINEER WILL MAKE AN IMPACT

  • Provides technical expertise to ensure systems meet Information Assurance (IA) requirements and are properly accredited.
  • Designs, develops, and recommends integrated security system and physical control solutions that will ensure proprietary/confidential data and systems are protected.
  • Assist IA team in established Authorization and Accreditation (A&A) process using a risk mitigation framework (RMF) across the design lifecycle for classified systems obtaining and maintaining Interim Authorization to Test (IATT), Authority to Connect (ATC) and Authorization to Operate (ATO).
  • Offers technical engineering services for the support of integrated security systems and solutions, managing information-related risks effectively.
  • Works closely with the client during the strategic design process to translate security and business requirements into actionable technical designs.
  • Develop comprehensive system test plans (STP) to assess the security posture of the information systems.
  • Analyze scan results and security findings to prioritize remediation efforts and implement corrective measures.

WHAT YOU’LL NEED TO SUCCEED:

  • Education: Bachelor Degree in an area applicable to this position
  • Required Experience: 8+ years of related experience
  • Advanced Windows administration capabilities and Linux proficiency
  • Practical experience deploying, maintaining, and troubleshooting security tools
  • Experience with C2S Cloud, or DevOpsSec
  • Required Technical Skills: Must be 8570 compliant (IAT Level 2) by date of security indoctrination with any necessary certifications.
  • Security Clearance Level: TS/SCI and Poly
  • Experience with: Assured Compliance Assessment Solution (ACAS), Trellix, Splunk, and Security Technical Implementation Guide (STIG)’s.
  • Required Skills and Abilities: Excellent communication, problem solving, team player
  • Experience as an ISSO, ISSM, ISSE, or Security Controls Assessor.
  • Experience with Special Access Programs (SAPs) and Intelligence Community.
  • Location: On Customer Site
  • US Citizenship Required

GDIT IS YOUR PLACE:

  • 401K with company match
  • Comprehensive health and wellness packages
  • Internal mobility team dedicated to helping you own your career
  • Professional growth opportunities including paid education and certifications
  • Cutting-edge technology you can learn from
  • Rest and recharge with paid vacation and holidays

Work Requirements

Years of Experience

8 + years of related experience

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

Certification

Travel Required

None

Citizenship

U.S. Citizenship Required

Posted 2026-08-18

Recommended Jobs

Lead Test & Launch Operations Engineer - Vehicle

Rocket Lab USA
Wallops Island, VA

About The Role ABOUT ROCKET LAB Rocket Lab is an end-to-end space company delivering responsive launch services, complete spacecraft design and manufacturing, payloads, satellite components, and m…

View Details
Posted 2026-07-18

Momentum Functional Transformation Analyst

Deloitte LLP
Virginia

Our Deloitte Finance Transformation team practices to help chief financial officers, controllers, and finance teams define and execute their finance and global business services agendas and strategies…

View Details
Posted 2026-08-12

Business Developer

MOI, Inc
Virginia Beach, VA

Job Description Job Description Summary: The Strategic Partnership Representative is responsible for driving new business opportunities while leading MOI’s engagement strategy with the Architec…

View Details
Posted 2026-06-29

Breakfast Attendant

True North Hotel Group Inc
South Boston, VA

Job Description Job Description True North Hotel Group , an award-winning management and development company, is seeking a Breakfast Attendant join our team at the Fairfield Inn & Suites i…

View Details
Posted 2026-08-08

Lube Technician

Lindsay Lexus of Alexandria
Alexandria, VA

The Lube Technician is expected to: Protect the legal, financial and moral well-being of the dealership; Perform lube, oil, filter and multipoint service for customer vehicles; Work with t…

View Details
Posted 2026-07-24

MO422- Certified Project Manager 157817

FHR
Richmond, VA

100% Remote. Our direct client is looking for an Certified Project Manager 157817 This position is for up to 6 months with the option of extension, and the …

View Details
Posted 2026-05-29

Direct Support Professional, Roanoke

Kahak Health
Roanoke, VA

Job Description Job Description Job Title: Direct Support Professional (DSP) Location: Roanoke, VA Job Type: Part-Time  Schedule: Monday-Friday 2:00pm-8:00pm; Every other Saturday 10am-…

View Details
Posted 2026-08-05

Certified Law Enforcement Officer

Amherst County Government
Amherst, VA

  NOW HIRING CERTIFIED LAW ENFORCEMENT OFFICERS     Looking for more than just a job? Build a career where your work matters, your community supports you, and your future has room to grow.     …

View Details
Posted 2026-08-10

Accountant 3 year exp. required

Chirag Patel Cpa Pllc
Chesapeake, VA

Job Description Job Description Job description Local CPA firm is seeking a highly motivated Payroll Specialist/bookkeeper to join our team for full time and year round employment. Selected candidate…

View Details
Posted 2026-04-05