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  1. Home
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  5. Systems Administrator III - Deployable with Security Clearance
Sierra Nevada Corporation logo

Systems Administrator III - Deployable with Security Clearance

Not Disclosed•Full-TimeOn-site

location_on98, 9th Avenue, Lake Lorraine, Okaloosa County, Florida, 32579, United States

Apply Now

About the Team

The Mission Solutions and Technologies (MST) business area provides affordable, turn-key command/control, communications, integrated ISR, force protection, and security solutions worldwide. With a long legacy of supporting the Department of Defense, Department of Homeland Security, commercial, and international customers, the MST team brings years of experience in platform operations, engineering, and full lifecycle management across air, land, sea, space, and cyber domains.

SNC is a global leader in aerospace and national security, committed to moving the American Dream forward. We are known for our mission and execution focus, agility, and disruptive, rapid innovation. We provide leading-edge technologies and transformative solutions that support our nation's most critical security needs. If you are mission-focused, thrive in collaborative environments, and want to make our country stronger with state-of-the-art technologies that safeguard freedom, join our team!

About the Role

As a Systems Administrator III, you will oversee the administration of complex systems, ensuring their robustness and reliability within the Aerospace and Defense sector. This role is designed for a detail-oriented professional passionate about developing innovative solutions. You will lead the development and implementation of system enhancements, manage security protocols, and provide expert-level troubleshooting. The position involves close collaboration with various IT teams to support mission-critical systems and business operations, ensuring seamless functionality across diverse environments.

Hiring Process & Application

This posting will be open for application for a minimum of 5 days and may be extended based on business needs. Interested candidates should apply through the official portal.

Important Eligibility & Clearance Requirements

This position requires a current/active Top Secret with SCI eligibility U.S. Security Clearance. U.S. Citizenship status is required as this position needs an active U.S. Security Clearance for employment; non-U.S. citizens may not be eligible to obtain a security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance eligibility process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations, and illegal drug use.

Additionally, candidates must successfully pass a pre-deployment medical assessment. The role may require working extended hours, holidays, and shift schedules as needed. Candidates must hold a current/valid passport and be able to obtain a visa to travel internationally. Willingness to travel for extensive amounts of time (TDY) and deploy on an approximate 60/60 rotation is required.

Equal Opportunity

SNC is an Equal Opportunity Employer committed to an environment free of discrimination. Employment decisions are made based on merit without regard to race, color, age, religion, sex, national origin, disability, status as a protected veteran, or other characteristics protected by law.

Work location

Work model: On-site

location_on

98, 9th Avenue, Lake Lorraine, Okaloosa County, Florida, 32579, United States

Florida

Key Responsibilities

  • check_circleLead the design and implementation of advanced system configurations
  • check_circleImplement and enforce comprehensive security measures and protocols
  • check_circleProvide expert-level troubleshooting and issue resolution for critical systems
  • check_circleCoordinate and manage system upgrades and modifications
  • check_circleConduct in-depth system tests to ensure functionality and compliance
  • check_circleOversee data handling, conversion, and storage solutions
  • check_circleManage and optimize system performance while addressing complex issues
  • check_circleMaintain and update detailed system documentation and records

Requirements

  • verifiedBachelor's degree in IT or 9+ years experience
  • verified5+ years related experience
  • verifiedExtensive knowledge of Windows and Linux
  • verifiedAdvanced network and system security protocols
  • verifiedCISSP or equivalent certification preferred
  • verifiedProficiency with VMware or Hyper-V
  • verifiedAdvanced scripting skills (PowerShell, Python)
  • verifiedCloud services experience (AWS, Azure)
  • verifiedAWS Cloud Foundations or Azure Fundamentals certification
  • verifiedAWS Solutions Architect, SysOps, or Developer Associate
  • verifiedMicrosoft Azure Administrator Associate
  • verified

Nice to Have

Certified Information Systems Security Professional (CISSP) or equivalent certification. Proficiency with virtualization technologies (e.g., VMware, Hyper-V). Advanced scripting skills (e.g., PowerShell, Python). Experience with cloud services (e.g., AWS, Azure). 2-5 years' experience implementing and supporting AWS and Azure Operations. 2-5 years' experience implementing and supporting VMware (VRealize, VRealize Operations, VRealize Automation). 2-5 years' Experience with IT Operations Monitoring Tools (PRTG, VROperations, Solarwinds). Ability to troubleshoot network connectivity between Server Infrastructure. Certifications: AWS Cloud Foundations, Azure Fundamentals, AWS Certified Solutions Architect - Associate, AWS Certified SysOps Administrator - Associate, AWS Certified Developer - Associate, Microsoft Certified: Azure Administrator Associate.

Benefits & Perks

check_circleMedical, dental, and vision planscheck_circle401(k) with 150% match up to 6%check_circleLife insurancecheck_circle3 weeks paid time offTuition reimbursement
Sierra Nevada Corporation logo
Company

Sierra Nevada Corporation

Industry

it

View company profilearrow_forwardlanguageWebsite
Quick Overview

Experience

5+ yrs (Senior)

Education

Bachelor's degree in an information technology related field (experience can substitute)

Job Type

Full-Time

Skills Required

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Skills, education and keywords

Skills: Windows, Linux, Network Security Protocols, Cissp, Vmware, Hyper-V, Powershell, Python, Aws, Azure.

Education: Bachelor's degree in an information technology related field (experience can substitute).

Frequently asked questions about Systems Administrator III - Deployable with Security Clearance at Sierra Nevada Corporation

What does a Systems Administrator III - Deployable with Security Clearance at Sierra Nevada Corporation do?expand_more
In this Systems Administrator III - Deployable with Security Clearance at Sierra Nevada Corporation role, you will lead the design and implementation of advanced system configurations; implement and enforce comprehensive security measures and protocols; provide expert-level troubleshooting and issue resolution for critical systems; and coordinate and manage system upgrades and modifications.
What are the requirements for this Systems Administrator III - Deployable with Security Clearance role?expand_more
Sierra Nevada Corporation is looking for candidates who meet the following requirements: Bachelor's degree in IT or 9+ years experience; 5+ years related experience; Extensive knowledge of Windows and Linux; Advanced network and system security protocols; CISSP or equivalent certification preferred; and Proficiency with VMware or Hyper-V.
Where is the Systems Administrator III - Deployable with Security Clearance role at Sierra Nevada Corporation located?expand_more
Systems Administrator III - Deployable with Security Clearance at Sierra Nevada Corporation is based in 98, 9th Avenue, Lake Lorraine, Okaloosa County, Florida, 32579, United States. This is a on-site role.
Is this Systems Administrator III - Deployable with Security Clearance job remote, hybrid, or on-site?expand_more
Sierra Nevada Corporation has listed this Systems Administrator III - Deployable with Security Clearance role as on-site.
How much experience is required for this Systems Administrator III - Deployable with Security Clearance role?expand_more
Systems Administrator III - Deployable with Security Clearance at Sierra Nevada Corporation typically requires 5+ years of relevant experience at the senior level.
What skills do you need for the Systems Administrator III - Deployable with Security Clearance role at Sierra Nevada Corporation?expand_more
Key skills for Systems Administrator III - Deployable with Security Clearance at Sierra Nevada Corporation include Windows; Linux; Network Security Protocols; Cissp; Vmware; Hyper-V; Powershell; and Python.
What education is required for Systems Administrator III - Deployable with Security Clearance at Sierra Nevada Corporation?expand_more
Educational requirements for this role: Bachelor's degree in an information technology related field (experience can substitute).
What category does the Systems Administrator III - Deployable with Security Clearance role belong to?expand_more
Systems Administrator III - Deployable with Security Clearance at Sierra Nevada Corporation is part of the it job category on Recrutus.
Recrutus

Curating the world's most innovative career opportunities. We bridge the gap between visionary talent and industry-leading companies.

Search roles by city, category, skill, or job type — explore verified US employers, salary benchmarks, and remote-friendly teams hiring nationwide.

publiclanguageshare
Job seekers
Browse jobsCompanies hiringRemote jobsJobs by locationJobs by cityJobs by categoryJobs by skillCareer guidesCareer blogSalary insights
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Jobs in TexasJobs in CaliforniaJobs in New YorkJobs in FloridaJobs in North CarolinaJobs in VirginiaAll states →
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CDL-A jobsExcel jobsEnglish jobsMicrosoft Office jobs
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Company
About usFAQContactPrivacy policy

Recrutus helps candidates discover roles that match their skills and helps teams reach qualified applicants faster. Browse by metro, discipline, or work style — from internships to senior leadership.

© 2026 Recrutus. All rights reserved.
Terms of serviceCookie policyAcceptable useDMCA policyEmployer termsCandidate terms
Active Top Secret with SCI eligibility U.S. Security Clearance
  • verifiedU.S. Citizenship required
  • verifiedValid passport and ability to obtain visa
  • check_circle
    WindowsLinuxNetwork Security ProtocolsCisspVmwareHyper-VPowershellPythonAwsAzure
    US privacy notice
    Accessibility