PKI Systems Administrator - TS​/SCI Polygraph

PKI SYSTEMS ADMINISTRATOR

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.

As a PKI Systems Administrator supporting CIS, you will ensure integrity, availability, and secure operation of enterprise public key infrastructure services. You will manage certificates, tokens, authentication services, and identity related security functions that underpin access to critical systems across multiple networks and security domains. Your work strengthens identity assurance, protects sensitive environments, and supports secure mission essential operations across a large, distributed enterprise.

• Issue, manage, and maintain certificates, tokens, and authentication credentials for users and systems, ensuring adherence to PKI standards and security requirements
• Support full lifecycle PKI operations, including issuance, synchronization, renewal, revocation, and troubleshooting of certificates across multiple networks and enclaves
• Provide knowledge-based support for customers, Trusted Agents (TAs), and system administrators, advising on authentication, token management, and certificate usage
• Maintain PKI infrastructure health by monitoring certificate stores, expiration timelines, CRL validation, and associated authentication systems
• Ensure compliance with enterprise multifactor authentication requirements and enforce credentialing policies for both user and nonperson entity (NPE) identities
• Support identity related incident response by diagnosing authentication failures, resolving certificate conflicts, and restoring secure access
• Maintain required documentation, service procedures, and operational artifacts to support secure and consistent PKI operations

• 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 with PKI administration, certificate services, token issuance, or authentication workflows in enterprise or secure environments
• Working knowledge of multifactor authentication, identity credential management, and certificate lifecycle processes
• Ability to troubleshoot certificate issues across distributed systems, networks, and platforms
• Strong customer service, communication, and documentation skills, with the ability to support technical and nontechnical users
• Familiarity with identity management tools, CRL validation, and certificate authorities is highly desirable
• US citizenship required
• LOCATION: Onsite

The likely salary range for this position is $147,292 - $199,278. 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.

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.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans