Linux System Administrator (Onsite)

Collins Aerospace

Annapolis (MD)

On-site

USD 90,000 - 182,000

Full time

14 days+

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Benefits offered by this job

Medical, dental, and vision insurance

401(k) plan with employer matching

Tuition reimbursement program

Paid time off and holidays

Life insurance and disability coverage

Job summary

Join a leading company as a Linux System Administrator, where you will manage and develop crucial systems in the aviation industry. This role demands strong knowledge of Linux systems, networking, and the ability to maintain high-performance environments supporting thousands of aviation customers daily.

Qualifications

5+ years relevant experience or 3+ years with an advanced degree.
Experience in core networking, subnetting, routing, and firewalls.
Administer multiple Linux distributions.

Responsibilities

Manage and maintain core Linux servers in a Bare Metal infrastructure.
Support global data centers and system software installations.
Monitor issues and support Root Cause Analysis.

Skills

Linux CLI

Debugging

Networking

Troubleshooting

Education

Degree in STEM

Tools

RHEL

Ubuntu

IBM MQ

NAS

iSCSI

Job description

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Location:

HMD31: Annapolis, MD 2551 Riva Road , Annapolis, MD, 21401-7435 USA

Date Posted:

2025-05-27

Country:

United States of America

Location:

HMD31: Annapolis, MD 2551 Riva Road , Annapolis, MD, 21401-7435 USA

Position Role Type:

Onsite

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

Do you want to make your mark in the Aviation industry? Do you want to help release the next generation of products and services to advance the way we transmit millions of aviation data daily?

As a Linux System Administrator, you will be managing and developing systems on a global scale to help the Aviation industry move undisrupted. You will be responsible for the messaging data in transit to ensure the on-time arrival for you, your friends and families, and all passengers flying around the globe.

The systems you will manage support over 1,500 aviation customers, transmitting over 75 million messages daily across the Aviation community. Are you ambitious and have the technical background to contribute to this incredible mission?

What You Will Do:

YOU will be responsible for sustaining and maintaining our core servers Linux within a Bare Metal infrastructure on-premises. On-site duties include racking devices, cabling, and deploying new systems in multiple data centers.
YOU will help the team deploy and maintain the rollout of the next generation of products and services and transition customers to the new platforms.
YOU will support the global data centers (installs, upgrades, configure, test, support system software, and security audits of hardware) and instill customer confidence in our products.
YOU will monitor and respond to everyday issues and problems and contribute to Root Cause Analysis (RCA) and support the Software Development Team by administrating team tools and processes.
YOU will keep up with the demands and tech debts of the existing infrastructure as we move to the new and advanced infrastructure.

What You Will Learn:

YOU will deepen your knowledge and understanding of using Linux to deploy sophisticated COTS and Collins’ web-based applications and microservices.
YOU will learn how aviation data moves behind all the airline ticketing and baggage check-in, how engines transition data to their services, how passenger information is transitioned across country borders, and overall how the aviation industry moves.
YOU will gain insights into team dynamics and how to foster collaboration, trust, and effective communication within our teams. There may be occasional off-hour tasks and meetings.
YOU will take flight to becoming a subject matter expert in Messaging Engineering with exposure to the variety of business and products in an ever-evolving field. We are growing, so can you!

Qualifications You Must Have:

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM)and minimum 5 years of prior relevant experience or an Advanced Degree in a related field at 3 years of prior relevant experience
Prior experience working in the Linux CLI, debugging tool, and network stack
Prior experience in core networking, subnetting, firewalls and routing
Prior experience troubleshooting and resolving system hardware, software and connectivity issues
Prior administration experience of multiple Linux distros such as RHEL and Ubuntu

Qualifications We Prefer:

Experience with IBM MQ
Experience with storage appliances with a focus on NAS and ISCSI protocols.
Experience with storage appliance Solaris and ZFS a plus.

What We Offer:

Medical, dental, and vision insurance
Three weeks of vacation for newly hired employees
Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
Tuition reimbursement program
Student Loan Repayment Program
Life insurance and disability coverage
Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance,critical illnessinsurance, group legal, ID theft protection
Birth, adoption, parental leave benefits
Ovia Health, fertility, and family planning
Adoption Assistance
Autism Benefit
Employee Assistance Plan, including up to 10 free counseling sessions
Healthy You Incentives, wellness rewards program
Doctor on Demand, virtual doctor visits
Bright Horizons, child and elder care services
Teladoc Medical Experts, second opinion program
And more!

Learn More & Apply Now!

Avionics delivers advanced cockpit displays, vision systems, and comprehensive digital solutions for global government, commercial and business aviation customers. We provide connectivity and managed data services to ensure safety and seamless communication for passengers, crews, and militaries, from aircraft and airports to air traffic management. Join us in creating solutions that connect the world, one flight at a time. Start your application today.

Please ensure the role type (defined below) is appropriate for your needs before applying to this role.
Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.

Apply now and be part of the team that’s redefining aerospace, every day.

The salary range for this role is 90,000 USD - 182,000 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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