Information System Security Engineer jobs in Fairfax

Job ID T2600313 Location McLean, VA, US Date Posted 2026-03-05 Category Cyber Subcategory Cybersecurity Spec Schedule Full-Time Shift Day Job Travel No Minimum Clearance Required TS.SCI_wPoly Clearance Level Must Be Able to Obtain None Potential for Remote Work ORA_ON_SITE Description SAIC is seekin

ManTech

MANTECH seeks a motivated, career and customer-oriented Senior Information System Security Engineer (ISSE) to join our team in Washington, D.C., Chantilly, VA or Quantico, VA. Responsibilities include, but are not limited to: Identify information protection needs for an IS and Network Environment. D

Overview Join a team where innovation meets mission. Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide. With 1,700+ team members, 1,500+ AI/data experts, and 100+ prime contracts,

ManTech

MANTECH seeks a motivated, career and customer-oriented Senior Information System Security Engineer (ISSE) to join our team in Washington, D.C., Chantilly, VA or Quantico, VA. Responsibilities include, but are not limited to: Define and implement cybersecurity requirements, architectures, and secure

Overview Join a team where innovation meets mission. Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide. With 1,700+ team members, 1,500+ AI/data experts, and 100+ prime contracts,

Senior Information System Security Specialist / Analyst This position requires an active Public Trust clearance. As a Senior Information System Security Specialist / Analyst supporting the Department of Transportation (DoT), you will be responsible for developing and maintaining Information System c

Lumen is the trusted network for AI. We’re transforming how businesses connect, secure, and scale in an AI-driven world. By connecting people, data, and applications quickly, securely, and effortlessly, we help organizations move faster and unlock what’s next. At Lumen, people power progress. Our cu

About Agile5 : Agile5 Technologies, Inc., is a Woman-Owned Small Business (WOSB) and Information Technology (IT) services firm that specializes in the design, development, testing, integration, and maintenance of enterprise software systems. We believe our employees are the company’s most valuable a

hackajob is collaborating with Nightwing to connect them with exceptional professionals for this role. Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers’ most demanding challenges. Our cap

Responsibilities Kforce has a client that is seeking a FSR Information System Security Officer (ISSO) in Washington, DC. Overview: We are seeking dedicated and motivated individuals with Systems Administration, Software Development, or Systems Engineering backgrounds to join our team as an Informati

RESPONSIBILITIES: Kforce has a client that is seeking a FSR Information System Security Officer (ISSO) in Washington, DC. Overview: We are seeking dedicated and motivated individuals with Systems Administration, Software Development, or Systems Engineering backgrounds to join our team as an Informat

Information Systems Security Engineer (ISSE) Location: Hybrid – 3 days onsite in Washington, DC Job Summary STAFFXPERT LLC is seeking an Information Systems Security Engineer (ISSE) on behalf of our client in Washington, DC. This role is responsible for delivering hands-on security engineering suppo

ECS

$175,000 - $190,000 /year

Job Description: ECS is seeking an Information System Security Engineer SME to work in our Washington, DC office. Please Note: This position is contingent upon contract award. ECS is seeking an experienced Information System Security Engineer (ISSE) – SME to join our team as an expert in designing,

Title Information Systems Security Engineer (ISSE) Belong. Connect. Grow. with KBR! KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a p

Req ID: 368195 NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now. We are currently seeking a Information Systems Security Engineer (ISSE) to join our te

Title: Information Systems Security Engineer (ISSE) Belong. Connect. Grow. with KBR! KBR’s National Security Solutions team provides high-end engineering and advanced technology solutions to our customers in the intelligence and national security communities. In this position, your work will have a

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what’s happening now and shape what’s coming next. Vantor is a place for problem solvers, changemakers, and go-getters—where people are working together to help our customers see the world diff

Experience & Level • 6 years systems engineering • Experience in hybrid cloud on-prem environments Core Technical Skills • Microsoft Azure administration • Microsoft 365 / Entra ID • VMware virtualization • Cisco networking (routers, firewalls) Systems Responsibilities • Patch management • STIG

Job Description ATTENTION MILITARY AFFILIATED JOB SEEKERS Our organization works with partner companies to source qualified talent for their roles. The following position is available to Veterans, Transitioning Military, National Guard and Reserve Members, Military Spouses, Wounded Warriors, and the

Overview We are seeking a highly skilled Information Systems Security Engineer (ISSE) to design, implement, and maintain security controls across enterprise systems and networks. This role ensures systems are compliant with security requirements while supporting mission-critical operations. The ISSE