Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior System Administrator

$68.9k - $131.1k

Raytheon Co

Job Title

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world's most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.

Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today's mission and stay ahead of tomorrow's threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

What You Will Do:

Provide IT systems administration in a heterogeneous RedHat Enterprise/Microsoft Windows and environment.

Participate in all phases of Engineering software installation and support, with emphasis on testing, documentation, and acceptance phases.

Collaborate with System Admins, Cyber Security professionals, Network Engineering and Program Stakeholders.

Apply understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods.

Work as a team member in a fast-paced technological environment. Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS).

Responsible for provisioning, installation/configuration, operation, and maintenance of systems hardware and software related to a Linux/Windows infrastructure for classified programs. Duties include, but are not limited to, server management (software and hardware); storage management (logical and physical); cross platform authentication and access management; data backup and restoration; software and license configuration; and workstation support.

Work with Cybersecurity professionals to maintain security requirements and provide documentation on advanced IT processes and procedures and other tasks as assigned.

Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.

Systems are operational 24x7 and occasionally require work effort beyond standard work hours

Full time 100% Onsite position

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. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Experience with some of, but not limited to, the following technologies: Red Hat Enterprise Linux, Active Directory, WSUS, VMware, BackupExec, NetBackup, prior systems administration experience, Windows or Linux administration, Backup and Recovery enterprise suites.

Experience with Server architectures and/or troubleshooting methods and ability to assist in developing solutions and documentation to a variety of technical problems.

Experience using VMWare vCenter, vSphere, Linux Desktops, Windows desktops (Windows 10, 11), Splunk and ESX and/or other virtual computing methods.

Scripting/ automation PowerShell, Bash experience.

Qualifications We Prefer:

Active and transferable U.S. government issued Top Secret security clearance. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) and an Operating System Certification.

Direct working experience with NISPOM, JAFAN, JSIG, DFARS and/or DoD/RMF.

Experience in RedHat Enterprise Linux.

Experience with data storage, NAS, and SAN technologies and solutions.

Experience supporting engineers in software, simulations, and hardware development.

Experience with Microsoft WSUS, SCCM, and/or Exchange

Experience using VMWare vCenter, vSphere, and ESX and/or other virtual computing methods.

High Performance Computing (HPC) experience in a Linux environment.

What We Offer:

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation.

Learn More & Apply Now!

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 68,900 USD - 131,100 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.

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.

Vacancy posted 3 days ago
Similar jobs that could be interesting for youBased on the Senior System Administrator in Mckinney, TX vacancy
  • $68.9k - $131.1k

     ...creating a safer, more secure world. Join us and help shape the future of aerospace and defense.What You Will Do:Provide IT systems administration in a heterogeneous RedHat Enterprise/Microsoft Windows and environment.Participate in all phases of Engineering software... 
    Senior
    Temporary work
    Work experience placement
    Work at office
    Remote work
    Flexible hours

    Raytheon

    Mckinney, TX
    3 days ago
  • $68.9k - $131.1k

     ...leading-edge technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. Senior System Administrators, based in McKinney, Texas, internally known as Senior Analyst, infrastructure Workplace Services... 
    Senior
    Temporary work
    Work experience placement
    Work at office
    Remote work
    Flexible hours

    Raytheon

    Mckinney, TX
    3 hours ago
  • $86.8k - $165.2k

    A leading defense contractor in McKinney, TX, is seeking a Principal System Administrator to manage IT systems in a mixed environment. Candidates should have extensive experience with Windows and Linux systems, along with a transferable U.S. government secret clearance... 
    Senior
    For contractors

    Raytheon

    Mckinney, TX
    5 days ago
  • $86.8k - $165.2k

    Raytheon in McKinney, Texas is looking for a Principal System Administrator to utilize your expertise in system & service integration and security standards. The ideal candidate will have a minimum of 5 years of relevant experience or an advanced degree with 3+ years in... 
    Senior
    Flexible hours

    Raytheon

    Mckinney, TX
    4 days ago
  • Raytheon seeks an IT Systems Administrator to provision, operate, and maintain Linux/Windows infrastructure for classified programs at our McKinney site. The role requires collaboration with cybersecurity, network engineering, and program stakeholders and involves support... 
    Senior

    Raytheon

    Mckinney, TX
    2 days ago
  • RTX, a leading aerospace and defense company, is seeking an IT Systems Administrator to support a DoD-program environment with Red Hat Linux and Windows infrastructure. You will manage server provisioning, storage, and cross-platform authentication, while coordinating with... 
    Senior

    Prattwhitney

    Mckinney, TX
    1 day ago
  • Advanced Integration Technology in Plano, TX seeks an Enterprise Systems Administrator to oversee the administration, integration, and continuous improvement of the company’s enterprise app portfolio (IFS, SugarCRM, GURU, PLM/CAD connectors) and related databases. Responsibilities... 
    Senior

    Advanced Integration Technology LP

    Plano, TX
    4 days ago
  •  ...to create and expand the delivery of personalized health support that people didn't even know could be possible. The Senior System Administrator for Stellus Rx will be a key member of our Technology Team , working closely with leaders and across the organization... 
    Senior

    Stellus RX

    Plano, TX
    3 days ago
  • A leading IT staffing firm in Texas is seeking a Systems Administrator III for a 3+ month contract to hire. The role involves testing, implementing, and maintaining virtual infrastructure using VMware technologies such as ESXi and vSphere. Candidates should possess a relevant... 
    Senior
    Contract work

    Saxon Global

    Frisco, TX
    5 days ago
  • RTX is seeking an IT Systems Administrator to provide administration across RedHat Enterprise Linux and Microsoft Windows environments, supporting engineering software installation and testing. You will collaborate with System Admins, Cyber Security, Network Engineering... 
    Senior

    Relha LLC

    Mckinney, TX
    1 day ago
  • $107.5k - $204.5k

     ...shape the future of aerospace and defense.Sr. Principal Linux Systems Administrator, in Infrastructure Workplace Services, will lead and...  ...infrastructure, ensuring reliable and secure IT operations.Act as a senior technical resource for the team to maintain confidentiality,... 
    Senior
    Full time
    Temporary work
    Work experience placement
    Work at office
    Remote work
    Flexible hours

    Raytheon

    Plano, TX
    3 days ago
  • A technology firm based in Texas is seeking an experienced backend developer to design and optimize Linux-based systems and embedded Rust agents. The ideal candidate should have advanced skills in Python, Linux server management, and computer networking. Responsibilities... 
    Senior
    Flexible hours

    Cytracom

    Mckinney, TX
    4 days ago
  • $86.8k - $165.2k

     ...tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world. What You Will Do Provide IT systems administration in a heterogeneous RedHat Enterprise/Microsoft Windows environment. Lead and coordinate the RedHat Installation and... 
    Full time
    Temporary work
    Work experience placement
    Worldwide
    Flexible hours

    Prattwhitney

    Mckinney, TX
    1 day ago
  • PestRoutes.com is seeking an experienced MySQL Database Administrator to ensure the performance, availability, and security of clusters of MySQL instances. The role involves orchestrating upgrades, backups, and provisioning database instances while working in tandem with... 
    Senior

    PestRoutes.com

    Mckinney, TX
    2 days ago
  • A technology company in McKinney, Texas is seeking a backend engineer specializing in Linux systems and network engineering. The ideal candidate will work on designing and optimizing systems for the ControlOne Bridge product, ensuring security and performance while collaborating... 
    Senior
    Flexible hours

    Cytracom

    Mckinney, TX
    2 days ago
  • $86.8k - $165.2k

     ...Job Title Principal System Administrator (Principal Analyst, Information Workplace Services) Location US-TX-MCKINNEY-513WC, 2501 W University Dr, Wing C BLDG, McKinney, TX Security Clearance U.S. Citizenship required. Ability to obtain and maintain a DoD Secret clearance... 
    Temporary work
    Casual work
    Flexible hours

    Raytheon

    Mckinney, TX
    2 days ago
  • A technology company based in the United States is seeking a skilled developer to design and optimize cross-platform agents for Windows and macOS. Qualified candidates will have expertise in kernel-level networking, strong experience with the Windows Driver Kit, and proficiency...
    Senior

    Cytracom

    Mckinney, TX
    2 days ago
  • $86.8k - $165.2k

    Join to apply for the Principal System Administrator role at Raytheon . Location: TX190: 2501 West University, McKinney, TX, 75070 USA Date Posted: 2026-01-08 What You Will Do Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise... 
    Temporary work
    Work experience placement
    Relocation
    Flexible hours

    Raytheon

    Mckinney, TX
    5 days ago
  • Wipro Limited is seeking a Splunk Enterprise Administrator to manage large-scale Splunk environments, including clustering, SmartStore, and...  ..., and ensuring high availability across enterprise production systems. Ideal candidates will have experience with Splunk ES, SOAR,... 
    Senior

    Wipro Technologies

    Plano, TX
    5 days ago
  •  ...department gaining hands-on experience as well as working on much larger team projects throughout the organization with exposure to senior management and mentors. This rigorous program ensures the opportunity for students to enhance new skills, obtain real-world... 
    Senior
    Summer work
    Internship
    Shift work

    Graebel Companies

    Mckinney, TX
    5 days ago
  • $68 - $73 per hour

     ...Akkodis is seeking a Senior Linux Engineer for a Contract jobwith a client in Plano, TX; Charlotte, NC; or Kennesaw, GA. This role is ideal for experienced engineers with a strong background in RedHat Linux, automation, and enterprise infrastructure. Rate Range... 
    Senior
    Hourly pay
    Contract work
    Temporary work
    Local area

    Akkodis

    Plano, TX
    21 hours ago
  •  ...Ethereum Technologies LLC in Plano, Texas is seeking a Unix L3 Administrator responsible for installation, configuration, and maintenance of Unix systems. The role includes managing user accounts, file systems, and network services while troubleshooting complex system... 
    Senior

    ETHEREUM TECHNOLOGIES LLC

    Plano, TX
    5 days ago
  •  ...Senior Configuration Management Engineer Our core competencies include systems engineering, program management, logistics, production support, aircraft maintenance,...  ...within CM and engineering workflows Own administration and optimization of SolidWorks PDM Professional... 
    Senior
    For contractors

    Albers Aerospace

    Mckinney, TX
    4 days ago
  • $107.5k - $173.5k

     ...experience who can apply his/her expertise in our next generation systems. As a member of the firmware development team, your daily...  ...software for our embedded Linux and Android based products. The Senior Firmware Engineer for our Android/Linux BSP team will help in creating... 
    Senior

    Crestron Electronics

    Plano, TX
    3 days ago
  • A leading mobility solutions company is seeking a Network Administrator to ensure network security and performance. The ideal candidate will have at least 3 years of experience and certifications in FortiNet and Cisco. Responsibilities include managing firewalls, network... 
    Senior
    Full time

    ViaPlus

    Plano, TX
    3 days ago
  • $132.4k - $251.6k

    Prattwhitney is seeking a Senior Principal Engineer - Integrated Product Team Lead (IPTL) to join their team in McKinney, TX. This role involves leading technical execution for program commitments and providing mentorship to team members. You will work closely with leadership... 
    Senior
    Relocation package

    Prattwhitney

    Mckinney, TX
    4 days ago
  •  ...organization, apply now.We are currently seeking a Network Engineering Senior Specialist to join our team in Plano, Texas (US-TX), United...  ...Rotating on-call, support queue management, preforming network system analysis and reporting• Willing to work in 24X7 environmentBasic... 
    Senior
    Work at office
    Remote work
    Flexible hours

    NTT DATA

    Plano, TX
    4 days ago
  • RTX is seeking an IT Systems Administrator in McKinney, TX to provide administration for a mixed Red Hat Enterprise Linux and Windows environment. Responsibilities include leading Red Hat installation, software support, and collaborating with cybersecurity teams on security... 

    Prattwhitney

    Mckinney, TX
    2 days ago
  •  ...require future sponsorship, are not eligible to apply. Job Introduction: The Global Finance Technology organization is looking to hire a Senior SAP Reporting Configuration Engineer to their Record to Report (R2R) team within the OneGL program. Under limited supervision,... 
    Senior
    Work at office
    Local area
    Remote work
    Visa sponsorship
    Work visa
    Shift work

    Liberty Mutual

    Plano, TX
    1 day ago
  •  ...Senior Principal Electrical Engineer – Fpga/Firmware We are seeking a Senior Principal Electrical Engineer – FPGA/Firmware to design...  ..., and real-time signal processing pipelines. Contribute to systems that digitize RF signals and generate Pulse Descriptor Words (... 
    Senior
    Live in
    Remote work
    Relocation package
    Flexible hours

    Raytheon

    Mckinney, TX
    21 hours ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior System Administrator. Be the first to apply!