Senior Linux System Administrator

Date Posted:

2025-05-28

Country:

United States of America

Location:

UTCT1: Corp - CT - Remote Remote Location, Remote City, CT, 06101 USA

Position Role Type:

Remote

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

Security Clearance:

None/Not Required

What You Will Do:

• Linux expert responsible for implementing and maintaining critical infrastructure for on-prem and cloud (AWS and Azure) environments.
• Responsible for monitoring and troubleshooting alerts, maintenance, configurations, and all escalations related to Linux Operating Systems.
• Develop complex Terraform plans and Ansible roles to automate provisioning, configuration management, application deployment, and intra-service orchestration.
• Continually improve the deployment and operations process through automation and best practices.
• Maintain high standards of documentation for all processes, procedures, and scripts.
• Provide training, knowledge transfer, and instruction to teammates.
• Deal with incidents, working under pressure to restore services quickly while maintaining a high level of communication.
• Effectively communicate with the wider DT teams, business unit personnel, and executives.

Qualifications You Must Have:

• Typically requires a University Degree or equivalent experience and minimum 10 years prior relevant experience, or an Advanced Degree in a related field and minimum 7 years experience
• 7 years minimum experience of technical design development and integration of Linux based systems with a demonstrated success in project delivery.
• 5 years experience with Apache Web Server Reverse Proxy.
• 5 years experience with Red Hat Enterprise Linux OS hardening and VMware/Azure image creation utilizing RTX and Center for Internet Security (CIS) Benchmark guidelines.
• 3 years experience with container deployment of Single Page Application Identity application to production using Red Hat provided Universal Base Image (UBI) container images.
• 3 years experience with scripting languages such as Bash, Python, JavaScript, or Perl.

Qualifications We Prefer:

• Familiarity with NIST SP 800-171.
• Knowledge of Machine Learning.
• Data pipeline development using commonly available CI/CD tools.
• Subject Matter Expert with HAProxy.
• Solid understanding of Disaster Recovery, Backup systems and methods.
• Expert ability to set up, configure, and develop custom scripts for host and service monitoring with Nagios XI, Datadog, and Splunk search/dashboard development.
• Red Hat Satellite 6 Identity organization management.
• Strong understanding of Layer 4 and Layer 7 networking.
• Strong ability to perform, analyze, and troubleshoot packet captures with Wireshark and tcpdump.
• Strong time management and organizational skills.
• Passion for technology and a desire to learn new technologies.
• Work autonomously to identify and develop opportunities to improve, innovate and/or pioneer new ways of working through continuous process improvement practices.
• Develop mitigations for Cyber vulnerabilities including the creation of Content Security Policies (CSP)

What We Offer: Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care.

Learn More & Apply Now!

Work Location: REMOTE

Please Consider the following role type definition as you apply for this role:

• This position is currently designated as remote. However, the successful candidate will be required to work from one of the 50 U.S. states (excluding U.S. Territories). Employees who are working in Remote roles will work primarily offsite (from home).  An employee may be expected to travel to the site location as needed

The salary range for this role is 124,000 USD - 250,000 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified Individuals with a Disability and Protected Veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.

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