Cybersecurity Systems Engineer/Information Systems Security Engineer (ISSE) - TS/SCI with Polygraph

General Dynamics Information Technology, Inc.; Washington (District of Columbia); On-site; USD 164,000 - 207,000; Full time

Benefits offered by this job

Medical plan options

401(k) with company match

Paid time off

Job summary

General Dynamics Information Technology, Inc. is seeking a Cybersecurity Systems Engineer/ISSE to lead Accreditation and Authorization (A&A) activities for RMF-based security programs.

You will document SSPs/CONOPS, gather artifacts, and coordinate with system owners and engineers to ensure Authority to Operate (ATO) readiness. You will monitor A&A projects, perform technical content reviews, and contribute to audit readiness, policy alignment, and continuous improvement of security controls

Qualifications

• Technical Training, Certification(s) or Degree + 10 years
• DoD Manual 8570.01-M IASAE Level II
• TS/SCI clearance and ability to obtain a Polygraph
• Location: On Customer Site

Responsibilities

• Lead Accreditation and Authorization (A&A) reviews with ISSMs and SCAs
• Document security control implementations and RMF artifacts
• Write SSPs, CONOPs, CPs, GUGs, PUGs, SOPs
• Record POA&Ms and mitigation evidence from system owners and engineers
• Coordinate with contractors and customers to achieve ATD, IATT, and ATO
• Support audit liaison activities and compliance oversight for RMF
• Perform technical content reviews and updates for ISCM and OA strategy

Skills

Information System Security

POA&M

Risk Assessments

A&A coordination

RMF

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 System Security, Plan of Action and Milestones (POA&M), Risk Assessments Certifications: None Experience: 10 + years of related experience US Citizenship Required: Yes

Job Description: CYBERSECURITY ANALYST SME Transform technology into opportunity as a Cybersecurity Systems Engineer/Information Systems Security Engineer (ISSE) 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 a Cybersecurity Systems Engineer/Information Systems Security Engineer (ISSE) you will help ensure today is safe and tomorrow is smarter.

MEANINGFUL WORK AND PERSONAL IMPACT Lead Accreditation and Authorization (A&A) reviews by Group level ISSMs and Security Controls Assessors (SCA) Documents the various security control implementations as well as gather the artifacts that support the Risk Management Framework (RMF) and ICD 503 Security Accreditation for the various Assessment and Authorization (A&A) efforts Document and obtain a general understanding of the architecture being developed or that was developed for each project in order to write the Systems Security Plans (SSP) / CONOPS Gather the information by working with various systems owners, project managers, and engineering team members in order to write various additional A&A related documents such as Contingency Plan (CP), General User Guide (GUG), Privileged User Guide (PUG), Standard Operating Procedures (SOP's), etc. Document the Plans of Actions and Milestones (POA&Ms) implementation responses or mitigations, as well as provide all required artifacts (i.e evidence gathering from the system owners, PMs, and engineering teams) Coordinating with various contractor and customer personnel to obtain the A&A content, as well as working with various customer security organizations to navigate the customer's A&A process in order to achieve Authority to Develop (ATD), Interim Authority to Test (IA TT), and Authority to Operate (ATO) for each of the primary and secondary assigned systems Monitor each of the various A&A projects within the customer's A&A process and be able to fluently discuss the status at all levels Support audit liaison activities, and compliance oversight activities to strengthen the security program and promote compliance with the Risk Management Framework (RMF) Perform technical content reviews and edits as part of the document updates as part of the Annual ISCM and OA Strategy Plan Update Conduct a technical review and update of the control volatility section of the plan considering emerging threats, changes to the agency security posture, the latest IC guidance, agency policy, federal laws, standards, and guidance, et., and based on information profile (e.g., High Value Asset (HVA), TS (SCI), Secret, etc.) Provide audit liaison support for internal and external audits and data calls for external reporting. Document and provide concise and actionable recommendations and process improvements reports.

WHAT YOU'LL NEED TO SUCCEED

• Required Education and Experience: Technical Training, Certification(s) or Degree + 10 years
• Certifications: DoD Manual 8570.01-M at the Information Assurance System Architects & Engineer (IASAE) Level II role
• Security Clearance Level: TS/SCI clearance and ability to obtain and maintain a Polygraph
• Location: On Customer Site

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 a career in cyber at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your focus on defending and protecting what matters.

#VA_2026Alumni #MD_2026Alumni #GDITEnhanced2026 #GDITCareers #JET

The likely salary range for this position is $164,382 - $207,000. 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: None Telecommuting Options: Onsite Work Location: USA DC Washington 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.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans Opportunity Owned From working with technologies like AI, cyber and cloud to careers in intelligence and health, we offer endless opportunities to apply your expertise to create a safer, smarter world.