Tier 3 Service Desk/System Administrator – TS/SCI

SUNAYU

TS/SCI Tier 3 Service Desk/System Administrator at Sunayu, LLC in Bethesda, MD. Responsibilities include Linux and Windows administration, system integration tools, and customer support.

Posted 4/17/2026full-timeBethesda • Maryland • 🇺🇸 United StatesMid-LevelSenior💰 $73,450 - $132,775 per yearWebsite

Tech Stack

Tools & technologies

AnsibleAWSCloudKubernetesLinuxPythonSaltStackTypeScript

About the role

Key responsibilities & impact

Perform Linux (primarily) and Windows builds, installations, configurations, administration, and troubleshooting.
Implement and enforce DISA STIG compliance across systems and networks.
Develop and maintain server builds for both virtual and physical environments.
Manage and deploy system integration tools such as Kubernetes, Rancher, and Helm.
Develop scripts for patching, configuration, and automation using Python, Bash, or PowerShell.
Utilize configuration management tools like Salt and Ansible for infrastructure automation.
Administer cloud environments, particularly AWS, including provisioning, monitoring, and optimization.
Provide professional and knowledgeable customer support to maintain excellent client relationships.
Coordinate with teammates to ensure service desk coverage from 6 AM to 6 PM, Monday through Friday.

Requirements

What you’ll need

Bachelor’s Degree with 4-8 years of relevant experience or Master’s Degree with 2+ years of experience
Active Top Secret clearance with eligibility for TS/SCI and Polygraph
Expertise in Linux systems administration (RHEL/CentOS, Ubuntu)
Experience with patching (yum/APT repositories) and virtual server builds
Familiarity with Agile project management and security requirements derivation
Strong scripting skills (Python, Bash)
Ability to work independently and collaboratively in a team environment
Experience working in air-gapped environments
Ability to obtain Privileged User Account (PUA) certification by the Government

Benefits

Comp & perks

3 Medical Plan Options
Dental and Vision
FSA, DCFSA, HSA
Life/AD&D Insurance
Short-Term & Long-Term Disability
Employee Assistance Program (EAP)
Training and Educational Assistance
Paid Time Off (PTO)
11 Federal holidays
401k plan with up to a 6% match (100% immediate vesting)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

Linux administrationWindows administrationserver buildsscriptingpatchingconfiguration managementcloud administrationsystem integrationvirtual server buildsAgile project management

Soft Skills

customer supportteam collaborationindependent work

Certifications

Bachelor's DegreeMaster's DegreeTop Secret clearanceTS/SCI eligibilityPUA certification