Date Posted:
2026-07-22
Country:
United States of America
Location:
US-NH-PELHAM-PE1 ~ 50 Bush Hill Rd ~ BLDG 1
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. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Security Clearance Type:
DoD Clearance: Secret
Security Clearance Status:
Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date
Principal System Administrators,internally known as PrincipalAnalyst, infrastructureWorkplaceServices,collaboratewith adiverseteam tosupportexciting, critical programs with classified information system capabilities.Successin this role means you are able todevelop, implement and maintain secure, cost-efficientenvironmentsacross various classified programs. Program teams rely on yourcollaborationand guidance to define computing requirements andcreateend-to-endsolutionstosolvecomplexIT infrastructure problems.
What You Will Do:
You will provide System Administration in a heterogeneous Redhat 8 & 9 Enterprise Linux environment.
You will utilize virtualization and containerization technologies, including VMware vCenter, vSphere, Horizon, ESXi, KVM, Podman, Docker, and Kubernetes/OpenShift.
Collaborate with engineers, software developers, systems administrators, storage, networking, and high-performance computing teams to resolve complex infrastructure and integration challenges.
Partner with cybersecurity teams to ensure continuous compliance with regulatory and security frameworks such as DFARS, RMF, and the NIST Cybersecurity Framework.
Provide critical, on-site support for mission systems in a closed DoD area, responding to both planned and emergent tasks, with occasional work outside standard hours and up to 10% travel as required.
Obtain and maintain DoD 8140 / 8570 certification (e.g., CompTIA Security+ or equivalent) within six months of hire.
Demonstrates flexibility and adaptability to support business needs, including adjusting to shift changes
Qualifications You Must Have:
Typically requires A University Degree or equivalent experience and minimum 5 years prior relevant experience, or An Advance Degree in a related field and minimum 3 years prior relevant experience.
Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date.U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Must have Linux or Windows experience
Experience withServer architectures and troubleshooting methods.
Experience in one of the following: Active Directory, VMware, MySQL, networking administration experience
Experience with secure system configurations, system hardening, application settings, and tailoring Linux environments
Qualifications WePrefer:
Strong leadership, teamwork, communication (written and oral), collaboration, and organizational skills.
Deep experience with Red Hat Enterprise Linux (RHEL) and its ecosystem, including authentication and identity services (SSSD, LDAP, Kerberos, NIS) and file sharing/integration services (Samba, NFS).
Expertise with automation and configuration management tools such as Ansible and Red Hat Satellite, along with strong scripting skills in Bash, Python, Perl, or C to support provisioning, patching, and lifecycle management.
Familiarity with enterprise storage systems (e.g., NetApp) and virtual desktop infrastructure (VDI) technologies such as Horizon, Profile Unity, and NVIDIA GPU virtualization (NLS, DLS).
Proficiency with monitoring, vulnerability scanning, and compliance assessment tools (ACAS, Splunk, Nessus, SCAP, STIG, Nagios, SolarWinds) and working knowledge of security frameworks (CMMC, NISPOM, JAFAN, JSIG, DFARS, DoD RMF).
What We Offer
Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value:Safety,Trust, Respect, Accountability, Collaboration, and Innovation. Relocationassistanceis available.
Relocation assistance available, provided final candidate meets eligibility requirements
Learn More & Apply Now
Please ensure the role type defined below isappropriate foryour needs before applying to this role. This position is classified as: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.
As part of our commitment to maintaining a secure hiring process, candidates may be asked to attendselect 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 86,800 USD - 165,200 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 candidates 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 companys 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.
