Sr. System Administrator

RTX•Andover, MA
•$95,500 - $181,700•Onsite

About The Position

The Sr. System Administrator, internally known as a Sr. Information Workplace Services professional, is based in Massachusetts and supports critical programs using classified information systems. The role develops, implements, and maintains secure, cost-efficient environments across classified programs, collaborating with program teams to define computing requirements and develop end-to-end solutions for complex IT infrastructure problems. The position provides systems administration in heterogeneous Microsoft Windows and Red Hat Enterprise Linux environments and works with cybersecurity professionals to maintain security requirements. It also documents and provides training on advanced IT processes and procedures. The systems operate 24x7, and the position may occasionally require work beyond standard hours. This is a full-time, 100% onsite role.

Requirements

  • A university degree or equivalent experience and at least 5 years of relevant experience, or an advanced degree in a related field and at least 3 years of experience.
  • Ability to obtain a U.S. government-issued Secret security clearance before starting; U.S. citizenship is required.
  • Experience administering and securing Windows and RHEL servers.
  • Experience with VMware virtualization.
  • Experience securing system configurations and performing system hardening.
  • Experience with PowerShell scripting.
  • Ability to obtain DoDD 8140 / 8570 certification requirements, such as CompTIA Security+ CE or an equivalent certification, within a reasonable amount of time.
  • Knowledge of Windows Server internals or Linux fundamentals, including DNS, DHCP, Active Directory, and server replication methods.

Nice To Haves

  • Experience serving as a technical subject matter expert or primary point of contact for patching, vulnerability remediation, or compliance initiatives.
  • Hands-on experience with MECM/SCCM, PXE boot services, OS imaging, and automated software deployment frameworks.
  • Familiarity with NetApp storage and/or HPC environments.
  • Experience with enterprise Windows services, including Active Directory, Group Policy, and identity integration.
  • Familiarity with cybersecurity and compliance tools such as ACAS, SCAP, Splunk, and STIG Viewer, as well as audit support processes.

Responsibilities

  • Administer IT systems in heterogeneous Microsoft Windows and Red Hat Enterprise Linux environments.
  • Work as a team member in a fast-paced technological environment.
  • Collaborate with cybersecurity professionals to maintain security requirements.
  • Provide documentation and training on advanced IT processes and procedures.
  • Perform other tasks as assigned.

Benefits

  • Relocation assistance, subject to eligibility requirements.
  • Medical insurance.
  • Dental insurance.
  • Vision insurance.
  • Life insurance.
  • Short-term disability insurance.
  • Long-term disability insurance.
  • 401(k) match.
  • Flexible spending accounts.
  • Flexible work schedules.
  • Employee assistance program.
  • Employee Scholar Program.
  • Parental leave.
  • Paid time off.
  • Holidays.
  • Potential eligibility for annual short-term and/or long-term incentive compensation programs.
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