Senior System Administrator - Windows Team

We are seeking a highly skilled

Senior Systems Engineer

to join our team, focusing on the operation, maintenance, and engineering of complex infrastructure systems. This role requires a proactive, hands-on professional with expertise in

Windows systems administration ,

security , and

cross-functional collaboration . As a

Subject Matter Expert (SME) , you will drive the resolution of technical challenges, ensuring system security and continuous improvement across various technologies.

Primary Responsibilities:

Systems Engineering & Administration:

Provide hands-on engineering and administration support for: ?

Hardware

(Dell laptops & servers)

Virtualization

(vSphere ESXi, vCenter, vRealize Operations Manager)

Windows Administration

(Windows Server, Windows 10, Active Directory, MECM, SQL Servers)

Act as a

Subject Matter Expert (SME) , offering actionable guidance to resolve technical challenges, execute vulnerability resolutions, and ensure continuous system improvements.

Support the full project lifecycle for infrastructure initiatives, including planning, execution, inventory management, procurement, and developing

Bills of Materials

for budgetary quotes.

Security & Compliance:

Identify, test, and resolve security vulnerabilities across systems, ensuring robust security protocols and compliance with

NIST standards,

emphasizing

DoD STIGs

Collaborate with teams to design, develop, and recommend integrated system solutions that protect proprietary and confidential data.

Translate business and security requirements into technical designs and assist with the implementation and validation of secure systems.

Collaboration & Problem-Solving:

Resolve technical issues autonomously by working with vendors and cross-functional teams to implement effective solutions.

Contribute to program planning, reporting, and identifying team contributions for rewards/recognition.

Participate in recurring meetings (e.g.,

All Hands ) and collaborate with leadership on ongoing initiatives.

Provide cross-functional training to team members and other departments as needed.

Basic Qualifications:

Bachelor's Degree

(or equivalent experience) with 8-12 years of relevant experience, including 6+ years in

Windows systems design , integration, and administration.

Proven ability to troubleshoot and resolve complex

systems administration

issues in an enterprise environment.

Strong organizational skills with the ability to manage

competing priorities

effectively.

Proficiency in applying

NIST SP 800-53

controls and frameworks to enhance system security.

Hands-on experience managing

Active Directory

and

Group Policies .

Ability to identify inefficiencies and implement effective

remediation strategies .

Excellent written and verbal communication skills, with the ability to translate technical issues to

non-technical audiences .

Proficiency in implementing

STIGs

in a Windows environment.

Experience with

AD Domain services ,

MECM ,

Virtualization , and

STIG/SCAP/NIST processes , including

ATO/A&A submission .

Experience in

cybersecurity design

and ensuring

robust security protocols .

Preferred Qualifications:

Experience with

McAfee ePO

(ENS, Drive Encryption),

IBM BigFix

Familiarity with monitoring tools like

Prometheus, Grafana, and Splunk

for performance tuning and optimization.

Experience with automation via PowerShell or Python scripting

Experience with

storage technologies

(e.g.,

PureStorage ).

Cybersecurity certifications (e.g.,

Security+ ,

Network+ ,

Splunk ).

Experience with

cloud migration

and managing

hybrid environments .

Microsoft certifications such as

AZ-800 ,

AZ-801 , or equivalent.

Experience designing and executing

disaster recovery (DR)

plans, including recovery and backup methods before significant changes.

Familiarity with

ITIL

best practices for service management.

Experience mentoring junior team members and providing technical leadership in cross-functional projects.

Experience with Active Directory Certificate Services (ADCS) and associated best practices

Clearance / Citizenship:

U.S. Citizenship

is required.

Must hold an active Secret or Top Secret

Work Location: ? (On Site )

at the following locations:

Fairmont, WV

Boulder, CO

Original Posting Date: 2025-02-06

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 onlyand 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.

REQNUMBER: R-00152960-OTHLOC-PL-2D0275

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.