Linux System Administrator (Onsite) (DoD Secret Clearance)

Date Posted:
2025-07-10
Country:
United States of America
Location:
FL915: St. Petersburg - Bldg D 7401 22nd Ave N. Building D, St. Petersburg, FL, 33710 USA
Position Role Type:
Onsite
U.S. Citizen, U.S. Person, or Immigration Status Requirements:
Active and transferable U.S. government issued security clearance is required prior to start date.Security Clearance:
DoD Clearance: Secret

We have an immediate career growth opportunity with our Information Workplace Services team for a talented Linuz Systems Administrator. This is an opportunity to work in a highly collaborative, multi-platform, multi-disciplined, classified systems environment resolving support issues for the engineering community using helpdesk and task assignment methods.

** This position is onsite in St. Petersburg, FL and requires a DoD Secret Clearance. **

What YOU will do:

• Administer, patch, and harden Red Hat Enterprise Linux (RHEL) and related distributions.
• Collaborate with Cyber to maintain and monitor system availability, performance, and logs using enterprise tools.
• Configure and maintain STIG-compliant systems in accordance with DoD security standards.
• Automate system tasks using Ansible and Bash shell scripting.
• Troubleshoot hardware and software issues across physical and virtualized environments (VMWare).
• Work closely with security, network, and development teams to support mission objectives.
• Support audit readiness activities and respond to security vulnerability findings.
• Provide mentorship and guidance to junior system administrators.
• Leverage ticketing system to resolve incidents submitted by end users.

Qualifications You Must Have:

• Typically requires a University degree or equivalent experience and a minimum of 2 years of prior relevant experience, or an Advanced Degree in a related field.
• Active and transferable U.S. government issued Secret security clearance is required prior to start date.
• Experience with Linux system administration.
• Strong experience with RHEL 7/8/9, including systemd, firewalld, and SELinux.
• Working knowledge of enterprise logging, monitoring, and alerting systems.
• Experience with automation tools such as Ansible.
• Familiarity with CIS/STIG benchmarks and DoD security standards.

Qualifications We Prefer:

• Experience with Databases
• Linux OS Certificate ( RHCSA / Linux+ )
• Experience with scanning tools such as Nessus and SCAP
• Experience with Splunk
• Experience with High Performance Computing ( HPC ) Environments
• Familiarity with NetApp / OnTap tools
• Experience with Enterprise Active Directory (AD) & LDAP
• Experience dealing with Managed Anti-Virus (AV) solutions ( ClamAV & SEM ).
• Experience with Red Hat Satellite
• Scripting Experience (Bash, Python, Ansible) and Kickstart
• Experience hardening systems using tools like SCAP and following STIGs.
• Experience supporting engineers in software, simulations, and hardware development.

What We Offer:

Some of our competitive benefits packages include:

• 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 illness insurance, 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!

Do you want to be part of a new, exciting initiative to combine foundational IT with new digital technologies? Our Digital Technology team is driving business efficiencies and a better customer experience by connecting technologies, people, information and processes. From making aircraft more electric, intelligent and integrated to building new software platforms such as Internet of Things, big data, artificial intelligence, and blockchain, there's no better place to be right now than in digital. If you're an agile thinker who enjoys utilizing modern technology to make big improvements, then you're a perfect fit for this team. Join Collins Aerospace to help us revolutionize the aerospace industry today!

WE ARE REDEFINING AEROSPACE.

* Please consider the following role type definitions as you apply for 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.

Regardless of your role type, collaboration and innovation are critical to our business and all employees will have access to digital tools so they can work with colleagues around the world - and access to Collins sites when their work requires in-person meetings.

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 66,000 USD - 130,000 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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