Senior Systems Administrator

Senior Systems Administrator Posted July 21, 2026 | Location: Lexington, MA | Company: MIT Lincoln Laboratory Position Overview The Advanced Capabilities and Systems Group is an agile, innovative, multi‑disciplinary team developing novel system and technology concepts that address the nation's critical security challenges. The group leverages focused analysis to understand solutions to defense and intelligence problems, then develops the solutions in a fast cycle of experimentation and prototyping. Frequent engagements with government intelligence and military users connect the group to their unique missions and needs. Projects often involve analysis of mission needs, systems integration to satisfy those needs, and prototyping of tactical systems to demonstrate capability. Our multi‑disciplinary team consists of talented technical staff with expertise in electromagnetics, optics, signal processing, RF design, statistics, optimization, computer vision, machine learning, software engineering, and embedded systems. Responsibilities Provide direct user support on a regular basis Install, maintain, repair, and upgrade computers and servers Manage Windows Operating Systems and RedHat meeting DISA STIG configurations with security tools such as EvaluateSTIG and STIGViewer Configure and STIG network devices such as routers, switches and printers Manage networks, file share, virtual infrastructures and SAN/NAS environments Document IT Procedures Familiarity with using and implementing Splunk, EPO, ACAS/NESSUS, PDQ Deploy, Backup Exec and other security and patching tools Identify vulnerabilities and remediate them to maintain compliance with security policies Review and test new hardware and software to make recommendations for purchases Work effectively and closely with various security teams Troubleshoot software in a complex rapidly changing environment Support Windows, Linux, and WSL based platforms, virtual systems, applications, and users Minimum Qualifications Bachelor's Degree (Computer Science, Information Systems, or related field preferred) or equivalent experience Minimum of six years of experience supporting Windows systems including configuration management, software installation/configuration, and network configuration. Experience with Windows systems in addition to RedHat competency is highly desired Selected candidate will be subject to a pre‑employment background investigation and must be able to obtain and maintain a Top Secret‑level DoD security clearance. A current active Top Secret clearance is highly desired Demonstrated track record to work independently A current DoD 8570 level II or higher certification employment preferred. (Security+, SSCP, CISSP, etc) Hiring Range $114,500 - $151,900 Benefits Comprehensive health, dental, and vision plans MIT‑funded pension Matching 401K Paid leave (including vacation, sick, parental, military, etc.) Tuition reimbursement and continuing education programs Mentorship programs A range of work‑life balance options ... and much more! Selected candidate will be subject to a pre‑employment background investigation and must be able to obtain and maintain a Top Secret level DoD security clearance. Equal Employment Opportunity MIT Lincoln Laboratory is an Equal Employment Opportunity (EEO) employer. All qualified applicants will receive consideration for employment and will not be discriminated against on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, age, veteran status, disability status, or genetic information; U.S. citizenship is required. #J-18808-Ljbffr