Lead Cybersecurity Architect

General Dynamics Information Technology (GDIT); San Antonio (TX); On-site; USD 157,000 - 213,000; Full time

Benefits offered by this job

Full-flex work week

401K with company match

Comprehensive health and wellness

Job summary

General Dynamics Information Technology (GDIT) in San Antonio, TX seeks a Lead Cybersecurity Engineer/Senior Principal to own the DoW defensive cyber posture end-to-end, from Zero Trust to RMF/ATO lifecycle. You will architect, implement, and enforce security boundaries and active defenses while managing RMF documentation and authorization processes.

The role requires deep expertise in ICAM, PAM, RBAC, MFA, and CJCSM 6510.01B incident response, with daily SCIF access for threat intel and

Qualifications

• Bachelor’s degree in a relevant field; 12–15 years in cybersecurity engineering; 8+ years RMF/ATO leadership; 5+ years designing Zero Trust/ICAM architectures.

Responsibilities

• Own end-to-end DoW Defensive Cyber posture from Zero Trust to RMF/ATO lifecycle.
• Lead architectural design, implementation, and configuration of security boundaries and defenses.
• Manage RMF documentation, artifacts, authorization, and continuous ATO per DoW and NIST SP 800-37.
• Design and enforce ICAM framework with IdP, PAM, RBAC and MFA; lead incident response and threat intelligence operations.

Skills

Zero Trust

RMF/ATO leadership

Cybersecurity

IT Architecture

Education

Bachelors degree in a relevant field

Tools

SIEM/SOAR

EDR

MISP

Job description

Req ID: RQ230352

Type of Requisition: Regular

Clearance Level Must Be Able to Obtain: Top Secret/SCI

Public Trust/Other Required: None

Job Family: Cyber and IT Risk Management

Skills:

Cybersecurity,IT Architecture,Zero Trust

Experience:

10 + years of related experience

US Citizenship Required:

Yes

Job Description:

Lead Cybersecurity Engineering, Architect:

Join GDIT’s mission‑driven team supporting the Department of Defense as we help unify the Air Force’s cyber defense to outpace threats with shared insight, faster decisions, and stronger mission protection.

MEANINGFUL WORK AND PERSONAL IMPACT:

• The Lead Cybersecurity Engineering, Sr. Principal owns the large DoW Defensive Cyber security posture end to end, from Zero Trust architecture to RMF/ATO lifecycle management.
• The Lead Cybersecurity Engineer/SME is responsible for the end-to-end architectural design, technical implementation, and strict configuration management of all security boundaries and active cyber defenses, and maintains complete responsibility for the enterprise Risk Management Framework (RMF) lifecycle, including authoring all RMF documentation, generating required security artifacts, navigating the authorization process, and executing continuous Authority to Operate (ATO) management in accordance with DoW guidance and NIST SP 800-37.
• The role implements and enforces the DoW Zero Trust strategy by designing the enterprise Identity, Credential, and Access Management (ICAM) framework, including identity providers (IdP), privileged access management (PAM), Role Based Access Control (RBAC), and Multi-Factor Authentication (MFA).
• The role also leads incident response and threat intelligence operations: designing, deploying (upon Government approval), and managing an enterprise-grade Malware Information Sharing Platform (MISP) as the centralized repository for Cyber Threat Intelligence, establishing workflows and API integrations to ingest, correlate, and disseminate Indicators of Compromise, adversary TTPs, and zero-day malware signatures.

Technical acumen required:

• Mastery of Zero Trust architecture (ICAM, PAM, RBAC, MFA), NIST RMF (SP 800-37), SIEM/SOAR engineering, EDR platforms, and MISP administration.
• Must be able to lead CJCSM 6510.01B-compliant incident response, as this role develops, manages, and continuously refines overarching Enterprise Cyber Incident Response strategies, policies, and playbooks.
• Daily SCIF access is essential given the need for continuous access to classified threat intelligence feeds and incident response coordination.
• This role is the technical anchor for the win themes around enforced test standards/compliance and synchronized threat intelligence.

QUALIFICATIONS - WHAT YOU’LL NEED TO SUCCEED:

• Bachelor’s degree in a relevant field and 12–15 years in cybersecurity engineering; 8+ years RMF/ATO leadership; 5+ years designing Zero Trust/ICAM architectures; 5+ years enterprise IR/threat hunting experience
• Security Clearance Level: Top Secret with SCI eligibility
• Certification: Certified Information Systems Security Professional (CISSP)
• Location: San Antonio region, TX
• US citizenship required

GDIT IS YOUR PLACE:

• Full-flex work week to own your priorities at work and at home.
• 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.

Community : Award-winning culture of innovation and a military-friendly workplace OWN YOUR OPPORTUNITY Explore a career in program management at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your passion for the mission and delivering results.

The likely salary range for this position is $157,250 - $212,750. 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.

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 https://gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans