Senior Linux System Administrator

  • JSfirm LLC
  • Baltimore, Maryland
  • Full Time
Senior Linux System Administrator

6 month contract

Pay Range: $52-60

We are currently seeking a senior-level Linux Administrator to join the Messaging Application Engineering team. The ideal candidate is a self-starter and a team player with an ambitious and diverse technical background. In addition, this person must be an articulate problem solver who is passionate about standardization, a champion for systematic design, and comfortable working in a highly collaborative/fast-paced environment.

Employees working in Hybrid roles will regularly work >50 onsite and

Primary Responsibilities

The Linux Administrator is responsible for the sustainment and maintenance of our core servers Linux within a Bare Metal infrastructure to appropriate standards

and best practices in a fast-paced work environment

Their responsibilities will include administering system-level procedures; patch management; service layer application; deployment creation; redundancy

management, and certificate management

Work with developers to build containerization that promotes automated, continuous integration and accelerates delivery of new products and services

Install upgrades, configure, test, and support system software

Some on-site duties include racking devices, cabling, and deploying new systems in multiple data centers. Able to lift 40lbs.

Perform configurations and adjustments to enhance system performance.

Perform automated and manual backup and restorative processes

Ensure the necessary security procedures are implemented and enforced across their work

Qualifications You Must Have:

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 3 years of prior relevant experience or an Advanced Degree in a related field and 2 years relevant experience or in absence of a degree, 7 years of relevant experience.

Experience with the Linux CLI, debugging tools, and network stack

Working knowledge of core networking, subnetting, firewalls, and routing

Proficient in configuration, troubleshooting, installation, operation, maintenance, and system administration of Multiple Linux distros such as RHEL and Ubuntu

Ability to create shell programs and utility scripts

Ability to troubleshoot and resolve system hardware, software, and connectivity issues

Ability to work independently in an international, cross-functional team environment, including occasional off-hours tasks and meetings

Ability to multi-task, prioritizes workload, and successfully handle competing deadlines

Must be authorized to work in the U.S. without sponsorship now or in the future. RTX will not offer sponsorship for this position.

Must be a U.S. Citizen

Ability to support hybrid (Primarily on site) schedule at Annapolis Office

Qualifications We Prefer:

Experience with IBM MQ

Experience with Docker, Kubernetes, Containerization

Experience with storage appliances (TrueNAS, FreeNas) with a focus on NAS and ISCSI protocols

Ability to support a 24x7 rotating on-call schedule will be required in this position

Occasional travel, as needed, less than 20 days a year.

Experience working with Configuration Management Systems (git in particular)

Experience Solaris and ZFS

Benefits provided: 401K, medical, dental, and vision, sick time as applicable to state law

Butler America Aerospace, LLC. is an equal opportunity employer. Butler evaluates applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information and other legally protected characteristics. The Butler America Aerospace, LLC. EEO Policy Statement and Know Your Rights Poster is available : Applicant and Employee Notices.

Butler America Aerospace, LLC. is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process, please contact the Human Resources Department at accommodationsbutler.

Job Ident #:

72594

Now

Company Details

Butler Aerospace & Defense

4960 Corporate Drive

Huntsville, Alabama 35805 USA

butler/

244 Open Jobs Available

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Solutions Provider!

Butler America combines over 60 years of technical services with 21st-century management tools, culture, and business solutions to match the best talent with the best jobs.

Benefits:

We offer full Medical, Dental & Vision plans.

Supported Manufacturers:

Engineering, Telecom, Skilled Labor,IT, Aviation & Aerospace. BAE, UTC, Sikorsky, Rockwell Collins

Supported Models:

C-130 (all models),T44A, T34C, all models of Sikorsky helicopters....

Visit the Employer site for more details
Job ID: 522600646
Originally Posted on: 5/27/2026

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