Cybersecurity Engineer Sr Principal

Type of Requisition:
Regular

Clearance Level Must Currently Possess:
None

Clearance Level Must Be Able to Obtain:
None

Public Trust/Other Required:
None

Job Family:
Cyber and IT Risk Management

Job Qualifications:

Skills:
Active Directory (AD), Authentication, Conditional Access, Microsoft Entra ID (Azure Active Directory)
Certifications:
None
Experience:
10 + years of related experience
ship Required:
No

Job Description:

Apply your expertise to advance the mission and strengthen our enterprise security posture as a Cybersecurity Engineer Sr Principal. Here, you'll help design and optimize identity foundations across Microsoft Entra ID (Azure AD), hybrid identity services, and modern authentication technologies.

You'll architect and drive modern authentication and identity engineering solutions, ensuring today is secure and tomorrow is smarter-driving robust, scalable, and compliant access experiences across the enterprise.

HOW YOU WILL MAKE AN IMPACT:

• Partner with senior leadership, cloud architects, and cybersecurity teams to design secure identity and authentication controls across Microsoft 365, Azure, and hybrid environments-balancing innovation, resilience, and compliance.
• Engineer, implement, and manage Microsoft Entra ID authentication solutions including Conditional Access, MFA, passwordless strategies, identity protections, authentication strength policies, and Zero Trust-aligned guardrails.
• Oversee complex authentication and federation integrations including SAML, OAuth/OIDC, Entra ID Application Proxy, certificate-based auth, header-based auth, and legacy protocol reductions or retirements.
• Lead modernization efforts including consolidation of authentication methods, migration from legacy identity providers, and the implementation of modern, cloud-native identity protections.
• Drive automation of identity lifecycle and authentication management using PowerShell, Graph API, and cloud automation platforms.
• Support compliance, audit readiness, and governance reviews via automated reporting, monitoring dashboards, and robust operational documentation.
• Troubleshoot identity, MFA, SSO, and application access issues across hybrid AD, Entra ID, and federated authentication platforms-partnering with security operations, service owners, and application teams.
• Serve as a subject-matter expert in authentication security, risk reduction, hardening, and alignment with enterprise and regulatory frameworks (Zero Trust, NIST, DoD, ITAR, etc.).

WHAT YOU'LL NEED TO SUCCEED:

• Education: 10+ years engineering Microsoft Entra ID (Azure AD) identity and authentication services
• Required Experience: Expertise with Conditional Access, modern authentication methods (MFA, passwordless, FIDO2, Windows Hello for Business, device-based auth)
• Required Technical Skills: Identity Access Management (IAM), Identity Governance (IG), Privileged Access Management (PAM), Zero Trust Architecture (ZTA)
• Required Skills and Abilities: Automation using PowerShell, Microsoft Graph, or API-based workflows. Microsoft Entra ID Administration, Active Directory Integration
• Preferred Skills: Experience designing or supporting federated authentication (SAML, OAuth/OIDC, WS-Fed). Deep troubleshooting skills across hybrid identity stacks (Entra ID, AD, ADFS, Entra Connect.) Understanding of Zero Trust principles and cloud authentication security baselines. Familiarity with Okta as an IDP. Relevant certifications preferred (MS-100/102, AZ-305, SC-300)
• Location: Hybrid

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

The likely salary range for this position is $164,382 - $189,750. 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.

Scheduled Weekly Hours:
40

Travel Required:
Less than 10%

Telecommuting Options:
Hybrid

Work Location:
USA VA Herndon

Additional Work Locations:
USA VA Falls Church

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.

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 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 capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

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