PKI Systems Administrator - TS/SCI with Polygraph

GDIT

$147K — $199K *
Tampa, FL 33647In-Person
Aerospace & Defense
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 10+ years of related experience
  • Bachelor's degree in IT or equivalent experience
  • Active Top Secret SCI clearance with polygraph
  • Experience in PKI administration and authentication workflows
  • Working knowledge of multifactor authentication and identity management tools

Responsibilities

  • Issue and manage certificates, tokens, and authentication credentials
  • Support lifecycle PKI operations including issuance, renewal, and troubleshooting
  • Advise customers and system administrators on authentication and certificate usage
  • Monitor PKI infrastructure health and compliance
  • Diagnose and resolve authentication failures and conflicts
  • Maintain documentation and operational artifacts for PKI processes

Benefits

  • Medical plan options including Health Savings Accounts
  • Dental and vision plan options
  • 401(k) plan with company match
  • Flexible work weeks and various paid time off options
  • Short and long-term disability benefits
  • Life and accident insurance offerings
Full Job Description

Type of Requisition:

Pipeline

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:

IT Infrastructure and Operations

Job Qualifications:

Skills:

Multi-Factor Authentication (MFA), PKI Certificate Management, Public Key Infrastructure, Token Standards

Certifications:

None

Experience:

10 + years of related experience

US Citizenship Required:

Yes

Job Description:

PKI SYSTEMS ADMINISTRATOR

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 PKISystems Administratorsupporting CIS, you will ensureintegrity, availability, and secure operation of enterprise public key infrastructure services. You will manage certificates, tokens, authentication services, andidentity relatedsecurity functions that underpin access to critical systems across multiple networks and security domains. Your work strengthens identity assurance, protects sensitive environments, and supports securemission essentialoperations across a large, distributed enterprise.

KEY RESPONSIBILITIES:

  • Issue, manage, andmaintaincertificates, 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
  • Provideknowledge-basedsupport for customers, Trusted Agents (TAs), and system administrators, advising on authentication, token management, and certificate usage
  • Maintain PKI infrastructure health by monitoring certificate stores,expirationtimelines, 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
  • Supportidentity relatedincident 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

WHAT YOULL NEED TO SUCCEED:

  • EDUCATION: Bachelors 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.

Scheduled Weekly Hours:

40

Travel Required:

None

Telecommuting Options:

Onsite

Work Location:

USA MD Annapolis Junction - 2711 Technology Drive, Annapolis Junction, MD (MDC246)

Additional Work Locations:

USA CO Colorado Springs - 8610 Explorer Dr (COC036), USA DC Washington, USA FL MacDill AFB - 7115 S Boundary Blvd (FLC096), USA VA Springfield - 7770 Backlick Rd (VAS110)

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.

Similar Jobs

More Jobs at GDIT

More Aerospace & Defense Jobs

Find similar PKI Systems Administrator - TS/SCI with Polygraph jobs: