PKI Engineer - TS/SCI with Polygraph

Public Trust: None

Requisition Type: Pipeline

Your Impact

Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

Job Description

PKI ENGINEER

YOUR IMPACT

Own your opportunity to support national defense. Your work will help keep critical operations secure and connected across the global enterprise directly, contributing to a mission that protects our nation every day.

CIS is growing, and we invite both our experienced incumbents and new team members to be part of what’s next. Incumbents bring invaluable mission insight, while new talent adds fresh ideas and energy. Together, we’ll strengthen continuity and drive the next generation of innovation.

MEANINGFUL WORK AND PERSONAL IMPACT

As a PKI Engineer supporting CIS, you will design, implement, and sustain secure public key infrastructure services that support authentication, encryption, and identity trust across multiple networks and security domains. You will engineer certificate services, integrate identity systems, maintain PKI related infrastructure, and ensure the resilience and compliance of enterprise credentialing services. Your work strengthens secure access, protects sensitive data, and enables mission critical operations across a distributed enterprise.

KEY RESPONSIBILITIES:

• Engineer, integrate, and maintain enterprise PKI services and supporting infrastructure
• Manage secure certificate lifecycle processes across users, systems, and applications
• Troubleshoot PKI issues involving certificates, trust, authentication, and revocation
• Support MFA through secure credentialing and token management
• Maintain PKI system health, including CRLs, certificate stores, and authentication components
• Collaborate across engineering, cyber, and operations to integrate PKI into new technologies
• Maintain PKI architecture documentation, configuration baselines, and SOPs
• Implement and validate patches and security updates in alignment with vulnerability management and security directives
• Investigate and resolve patch related compliance issues, supporting POA&M development and corrective action verification

WHAT YOU’LL NEED TO SUCCEED :

• EDUCATION: Bachelor’s degree in an IT-related field, or 10+ years of relevant IT experience in lieu of a degree
• CERTIFICATION: Meet DoD 8140 Information Assurance Workforce certification requirements (e.g., Security+ CE, etc.)
• CLEARANCE: Active TS/SCI clearance with a favorable polygraph
• Experience engineering or administering PKI systems, certificate authorities, token services, or IAM components
• Strong understanding of certificates, trust models, revocation, key management, and authentication protocols
• Ability to diagnose and resolve complex PKI technical issues across distributed systems and networks
• Familiarity with enterprise identity services, MFA platforms, and secure credentialing workflows
• Strong communication, documentation, and cross-team collaboration skills

• US citizenship required

• LOCATION: Onsite

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.

#CIS

Work Requirements

Years of Experience

10 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

Travel Required

None

Citizenship

U.S. Citizenship Required