Systems Administrator (Onsite)

RTX (Raytheon); Arlington (VA); On-site; USD 110,000 - 140,000; Full time

Job summary

RTX BBN Technologies in Rosslyn, VA is seeking a Systems Administrator to handle core IT infrastructure, lab setups, server installs, scripting, and VM management. You will work onsite and collaborate with Cyber Security to meet RMF/NIST requirements while supporting customer needs.

The role requires a university degree, 5+ years of relevant experience, and an active DoD Top Secret security clearance. Strong knowledge of Windows and Linux systems, Active Directory, and virtualization is expected.

Responsibilities

• Work on-site at the Rosslyn, VA facility and maintain lab environments.
• Collaborate with Cyber Security to ensure RMF/NIST compliance and customer requirement alignment.
• Perform regular IT maintenance, software updates, hardware refreshes, licensing and changes in requirements.
• Diagnose and troubleshoot lab systems, including Active Directory, antivirus, vulnerability assessments, and network device configurations.
• Generate, organize and maintain IT documentation related to lab environments.

Job description

Date Posted: 2026-09-15

Country: United States of America

Location: US-VA-ARLINGTON-111 ~ 1300 17Th St N ~ BBN ARLINGTON

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: Top Secret

Security Clearance Status: Active and existing security clearance required on day 1

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. Join us and help shape the future of aerospace and defense.

RTX BBN Technologies, a subsidiary of RTX, is the research company behind many revolutionary advances that we take for granted today. BBN is where email was invented, and the first routers were implemented. Today, BBN's scientists and engineers are working to advance the state-of-the-art on topics ranging from machine language translation to quantum cryptography. BBN offers the opportunity to perform exciting and revolutionary research that solves important problems in an exciting, collaborative environment.

The Business Infrastructure group at RTX BBN Technologies' Rosslyn, VA office is seeking a Systems Administrator. Our team handles all aspects of IT including, but not limited to: core network infrastructure, phone systems, lab setups, server installs and configuration, scripting, automation, and VM management. You will work mainly in our lab environments as a systems administrator as well as collaborating with colleagues in Cambridge and our other remote offices.

What You Will Do

• Work primarily on-site at our facility in Rosslyn, VA.
• Work with our Cyber Security team to ensure that information systems conform to customer specification (NIST and RMF requirements).
• Work with team members to propose, design, purchase, and implement technical solutions to customer requirements.
• Perform regular information systems maintenance with regards to software updates, hardware refreshes, licensing, and changing requirements.
• Diagnose and troubleshoot issues in lab environments including but not limited to Active Directory, antivirus software, vulnerability assessments, or network device configuration.
• Generate, organize and maintain IT documentation as it relates to lab environments.

Qualifications You Must Have

• Typically requires a University Degree and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience or in absence of a degree, 9 years of relevant experience.
• Ability to access U.S. only data systems.
• Active and transferable Top Secret U.S. government issued security clearance is required prior to start date.
• CompTIA Security+ CE certification or other equivalent which meets DoD 8570 IAT Level II requirements.
• Experience with several of the following tools: STIG Viewer, SCAP Compliance Checker, EvaluateSTIG, Splunk, Nessus.
• Experience with NIST 800-53 and NIST 800-171 standards and the Risk Management Framework (RMF).
• Experience with networking essentials including common ports & protocols, DHCP, DNS, switching/routing, firewalls, etc....
• Experience with Windows operating systems (e.g. Windows 10/11, Windows Server 2022 and newer).
• Experience with Linux operating systems (e.g. RedHat Enterprise, Ubuntu, etc...).

Qualifications That We Prefer

• Experience with additional operating systems (e.g., macOS, Unix, etc...).
• Experience setting up and managing Microsoft Active Directory environments.
• Experience with Virtualization (e.g. VMWare vSphere, Hyper-V, etc...).
• Cisco certification or experience with configuring and maintaining Cisco switching/routing/firewall products.
• Relevant experience with