Active Directory System Administrator

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Alexandria, VA
In-Office
90K-162K Annually
Information Technology • Software
The Role

 Leidos is seeking a System Administrator to partner on a large enterprise IT contract for the DOD. The System Administrator will be responsible for maintaining existing enterprise identity management solutions, troubleshoot incidents, and assist with transitioning new capabilities from the engineering team to production. Duties will include validating the health and status, operations, and maintenance of identity management systems such as Active Directory, Azure Active Directory, Azure Active Directory Connect (AADC), Active Directory Federation Services (ADFS), ADFS Web Application Proxy (WAP), Quest Active Roles Server (ARS), Microsoft Identity Manager (MIM), Forefront Identity Manager (FIM), LDAP Border Directory Systems (AD Lightweight Directory Services, Radiant Logic, VDS etc.). This person will work in a team environment supporting a large enterprise spanning multiple enclaves and sites. 

Why Leidos?

  • Leidos Life promotes excellent work-life balance.  You can make an impact and have time for your well-being.
  • Leidos offers many opportunities for career development and advancement.
  • Learn more about the benefits we offer: https://www.leidos.com/careers/pay-benefits.

Successful candidates must possess the following skills: 

  • Professionals in this role may be required to remotely log into the end users' endpoint (desktops and/or servers) in order to perform technical configuration, rebooting, and other remedial actions to assist with troubleshooting authentication anomalies.
  • Provide support for implementing, troubleshooting and maintaining of identity management systems.  •Rapidly distinguish isolated user problems from enterprise-wide application/system problems and provide recommended solutions.
  • Coordinate with stakeholders to collect data, conduct analysis, develop, and implement solutions associated with incident tickets and requirements.
  • Build and deploy Domain Controllers and other identity management servers through remote means at customer sites utilizing approved installation procedures.
  • Provide follow-up reports (technical findings, feedback, resolution steps taken) for root cause analysis, engineering technical assessment and process improvement initiatives. 
  • Mentor junior team members.
  • Update operations and maintenance documentation for 24/7/365 enterprise watch personnel.  
  • Support operations across multiple geographic locations and network classifications.
  • Work with Operations, Engineering, and vendor support to develop solutions to complex technical issues.
  • Self motiviated as part of a virtual team

Basic Qualifications

  • Experience with PowerShell commands and scripting/automation

Experience or functional knowledge with Identity Management technologies including the following:

  • Microsoft Identity Manager (MIM)
  • Forefront Identity Manager (FIM)
  • Azure Active Directory Connect (AADC)
  • Active Directory Federation Service (ADFS)
  • ADFS Web Application Proxy (WAP)
  • Quest Active Roles Server (ARS)
  • LDAP Border Directory Systems
  • Active Directory Lightweight Directory Services
  • Radiant Logic
  • VDS
  • OAUTH/SAML
  • Secure Token Authentication Services/PKI Integration

Experience with the following:

  • Experience with Quest ARS PowerShell extensions and implementing ARS task automation
  • Experience with Tier 2/Tier 3 system administration
  • Experience interacting with customers during the course of troubleshooting incidents and system anomalies
  • Experience troubleshooting issues in a growing environment
  • Experience with log reviews, incident analysis, and identification of issue trends
  • Experience with server patch management methodologies 
  • Experience mentoring and training junior personnel
  • Time management skills
  • Strong oral and written communications skills
  • Track record of working effectively within a virtual team, and support to peers toward improved processes and results
  • Ability to work individually
  • Experience with support ticket management systems 

Education/Training

  • Candidate must, at a minimum, meet DoDM 8140.03 (previously DoD 8570) – IT System Admin Intermediate certification requirements (Cloud+, GICSP, SSCP, Security+ CE, GSEC, or higher)
  • The candidate must have Bachelor’s Degree with 8 years of prior relevant experience, Masters with 6 years of prior relevant experience, an Associates’ Degree with 10 years of prior relevant experience or 12 years of prior relevant experience in lieu of education.

Clearance

  • TS/SCI with specific polygraph required for position or TS/SCI and willingness to obtain and maintain a specific polygraph.
  • US citizenship is required due to the nature of the government contracts we support.

Preferred Qualifications

  • Knowledge of integrating Exchange and Active Directory 
  • ITIL Foundations Certification
  • Microsoft or other commercial Identity Management certifications (i.e., Identity and Access Administrator Associate, Azure Administrator Associate, Quest Active Roles Administration, or Quest Active Roles Implementation and Configuration)

ISEO

Original Posting:May 5, 2025

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $89,700.00 - $162,150.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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The Company
Alexandria, VA
27,104 Employees

What We Do

We Are Leidos

For 50 years we have been tackling some of the biggest problems that face our nation and our world.

OUR MISSION
Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020.

Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®.

Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos.

Your most important work is ahead.

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