Systems Administrator-IT-IC3, Group 95 (Top Secret)

MIT Lincoln Laboratory’s Space Systems Analysis and Test Group (Group 95) identifies and evaluates threats to U.S. use of space for military, intelligence, civil, and commercial purposes. This work involves understanding the attributes and vulnerabilities of U.S. space-related systems, including sensors and networks used to detect, track, and characterize objects in space; the satellites that provide space-based services; and the infrastructure used to control and operate these satellites. A central component of this effort is assessing how adversaries might exploit U.S. vulnerabilities by evaluating the technical knowledge and resources required to mount credible threats. The work requires detailed modeling of optical, radar, and propulsion systems; developing novel ideas for new space systems and on-orbit operations; and understanding timelines, architectures, and decision-making processes for maintaining awareness of the space environment. The group also pursues innovative remote-sensing concepts for space and Earth, involving sensor design, signal and image processing, and space-object and environmental phenomenology. Researchers from physical sciences (physics, mathematics, chemistry) and applied disciplines (electrical, mechanical, chemical, aeronautical, and astronautical engineering, as well as computer science) are encouraged to apply.

About the Role

Group 95 is seeking a Level 3 IT Systems Administrator to join a highly collaborative team supporting one of MIT Lincoln Laboratory’s largest and fastest-growing classified computing environments. This infrastructure enables critical national security missions and supports a diverse community of engineers, researchers, and operational users. In this role, you will administer and enhance a modern multi-platform environment that includes Windows and Linux systems, VMware virtualization, enterprise storage, Active Directory, networking infrastructure, and cybersecurity technologies. You will solve complex technical challenges, influence infrastructure architecture decisions, and help scale a mission-critical environment supporting high-impact national security programs. The ideal candidate is a technically curious problem solver who enjoys working across multiple technologies, collaborating with cross-functional teams, and delivering reliable, secure solutions in a classified environment.

Responsibilities

• Administer, maintain, and enhance a secure air-gapped computing environment supporting mission-critical users and applications.
• Administer and maintain virtualization, storage, identity management, networking, and operating system services supporting enterprise-class classified infrastructure.
• Maintain compliance through regular OS and software patching.
• Troubleshoot performance issues and recommend system upgrades.
• Specify, implement, and test system configurations and perform upgrades across multiple platforms.
• Collaborate with vendors, security, and internal teams on procurements, installations, and upgrades.
• Implement security measures aligned with government and lab policies.
• Manage data backups, recoveries, and license renewals.
• Identify opportunities for automation, process improvement, and infrastructure modernization.
• Participate in infrastructure planning, capacity management, and technology refresh initiatives.
• Lead technical investigations and drive resolution of complex infrastructure and operational challenges.

Requirements

• 4+ years of systems administration experience in a classified environment.
• Experience supporting Windows and Linux operating systems in classified or highly secure environments.
• Strong knowledge of TCP/IP, DNS, and networking fundamentals.
• Proficiency in Active Directory and Group Policy.
• Experience deploying and securing Windows and Linux endpoints, including operating system imaging, disk encryption, and endpoint management technologies.
• Ability to diagnose and resolve hardware, software, and networking problems.
• Strong troubleshooting skills with the ability to communicate effectively with technical and non-technical stakeholders.
• Solid understanding of security and cyber-hardening practices.
• Excellent written and verbal communication skills.
• Active Top-Secret Clearance with SCI eligibility.

Preferred Qualifications

• Experience with VMware and vCenter.
• Experience configuring and maintaining Cisco network equipment.
• Experience with Linux package management and automation tools (e.g., YUM, DNF, RPM).
• Experience developing automation solutions using PowerShell, Bash, Python, or similar scripting languages.
• Familiarity with RMF and associated frameworks and guidance (e.g., JSIG, ICD-503, CNSSI 1253).
• Technical experience securing networks and systems utilizing DISA STIGs and/or SRGs.
• Background in mission-critical environments.
• Experience with security plans, procedures, and compliance (e.g., DoD 8140).
• Security+ certification (or equivalent; required within 6 months of hire under DoD 8140).

Pay

$95,700–$126,700 (base salary only; final offer depends on experience, skills, internal equity, and applicable legal requirements).

Benefits

• Comprehensive health, dental, and vision plans.
• MIT-funded pension.
• Matching 401K.
• Paid leave (vacation, sick, parental, military, etc.).
• Tuition reimbursement and continuing education programs.
• Mentorship programs.
• Work-life balance options.
• Additional voluntary benefits, discounts, and perks through MIT.