Linux System Administrator (GN3) - Trinity ES LLC

Responsibilities:
• Design, develop, and support cloud initiatives to support customer driven needs
• Responsible for user account management and infrastructure requirements.
• Maintain program owned applications in support of a collaborative environment
(JIRA, Atlassian, BitBucket, RocketChat)
• Work as a SME to define network requirements, user metrics, maintenance of
our PPSM, and support to development needs.
• Responsible for infrastructure patching and OS baseline hardening
• Manage several environments as a Linux SME providing overall support to the
program and working with Enterprise Services to ensure compliance with security
services and applications.

Requirements/Qualifications:
 Bachelor’s Degree in Computer Science or related discipline plus 4-8 years of
professional experience as a Systems Administrator or similar technical role.
ï‚· Proactive self-starter demonstrating a positive, willing attitude and excellent oral
and written communication skills.
ï‚· Two or more years of experience with Amazon Web Services (S3 Buckets, EC2,
Reserved Instances, etc.)
ï‚· Familiar with System Engineering documentation creation (VDDs, network
diagrams, data flows, etc.)
ï‚· Experience working with Agile Team Collaboration tools such as (Jira, Confluence,
RocketChat)
ï‚· Strong Linux background and familiarity with best practices of infrastructure
management
Preferred Qualifications:
• Experience with AWS and other cloud vendors.
• Experience with Amazon Web Services technical performance versus cost
management
• Experience with cloud-based architectures

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• Familiar with cross domain architectures at various levels
• Experience with automated testing and monitoring
• Experience with Engineering Review Boards and Change Management
Clearance Requirements*
Requires an active Top Secret security clearance upon hire and must meet SCI eligibility. Must be willing
and able to obtain a polygraph within the customer’s timeline after hire. Applicants selected will be subject
to a U.S. Government security investigation and must meet eligibility requirements for access to classified
information. Due to the nature of work performed within our facilities, U.S. citizenship is required.

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