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Information System Security Engineer

GDIT

On-site
Chantilly, VA
Full-time
Senior
5+ yrs
Salary not listedPosted 47m ago

Real job — pulled straight from GDIT’s careers page · Verified November 6, 2026 · No reposts.

Job description

GDIT is hiring a Information System Security Engineer — a full-time, based in Chantilly, VA role. Apply directly on GDIT's careers page below.

ISSE/Cybersecurity Engineer- TS/SCI w/poly

Location: USA VA Chantilly

Time Type: Full time

Job Description

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Top Secret SCI + Polygraph

Clearance Level Must Be Able to Obtain:

Top Secret SCI + Polygraph

Public Trust/Other Required:

None

Job Family:

Cyber and IT Risk Management

Job Qualifications:

Skills:

Information Assurance, Process Improvements, System Security

Certifications:

None

Experience:

5 + years of related experience

US Citizenship Required:

Yes

Job Description:

ISSE/Cybersecurity Engineer

 

Advance how our customers operate while you advance your career. Join GDIT as an ISSE/Cybersecurity Engineer and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.

 

MEANINGFUL WORK AND PERSONAL IMPACT

 

As an ISSE/Cybersecurity Engineer you will play a crucial role in performing the following tasks:


● Work with program development and O&M teams to maintain continuous compliance with RMF and zero-trust principles, eradicate critical vulnerabilities within policy durations, and guarantee the provenance of every software artifact delivered to production.
● Apply comprehensive knowledge of the RMF processes, security requirements, and system infrastructure to coordinate continuously with key team members, the Authorizing Official, and the ISSM to maintain accurate and relevant RMF documentation throughout system development, deployment, and O&M.
● Maintain required RMF documentation for all systems.
● Coordinate with SysAdmins coordinate to maintain software in accordance with security mandates, including testing and deployment of Information Assurance Vulnerability Alert (IAVAs) for Commercial off-the-shelf (COTS) software.
● Engage the Government to prioritize and schedule deployment of security patches, bug fixes, configuration updates, system upgrades, and performance improvements.
● Act as the CIO GRC RMF liaison to support rapid exchange of SP Fault, Configuration, Ac-counting, Performance, Security/Fulfillment, Assurance, and Billing (FCAPS/FAB) data that identify security issues and support timely response.
● Work closely with cybersecurity representatives and data owners to confirm the platform’s technical capability to protect mission data, upholding confidentiality, integrity, and availability. 

 

WHAT YOU’LL NEED TO SUCCEED

● Education: BA/BS or equivalent

● Experience: 5+ years of related experience

● TS/SCI w/poly clearance

● US citizenship required

 

GDIT IS YOUR PLACE

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

● Growth: AI-powered career tool that identifies career steps and learning opportunities

● Support: An internal mobility team focused on helping you achieve your career goals

● Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off

● Community: Award-winning culture of innovation and a military-friendly workplace

 

OWN YOUR OPPORTUNITY

 

Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

 

 

The likely salary range for this position is $122,275 - $165,431. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours:

40

Travel Required:

Less than 10%

Telecommuting Options:

Onsite

Work Location:

USA VA Chantilly

Additional Work Locations:

Total Rewards at GDIT:

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

 

 


Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

 

 

About Our Work:

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Join our Talent Community to stay up to date on our career opportunities and events at

gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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Frequently asked questions

What skills are required for Information System Security Engineer at GDIT?

The required skills for Information System Security Engineer at GDIT include: Cybersecurity.

What is the seniority level for Information System Security Engineer at GDIT?

Information System Security Engineer at GDIT is a Senior level position.

How do I apply for Information System Security Engineer at GDIT?

You can view the full description and apply for Information System Security Engineer at GDIT on EchoJobs: https://echojobs.io/job/gdit-isse-cybersecurity-engineer-ts-sci-w-poly-wpmrx.