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Cyber Infrastructure Support Lead with Security Clearance

Remote / Online - Candidates ideally in
Concord, Middlesex County, Massachusetts, 01742, USA
Listing for: Leidos
Remote/Work from Home position
Listed on 2026-08-05
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Administrator, Information Security & Data Protection, IT Support
Job Description & How to Apply Below
R
- Description Leidos Corporate Information Security Office (CISO), reporting through the Digital Sector is seeking a Cyber Infrastructure Support Lead to work with our Concord, MA team! The Cyber Infrastructure Support Lead is a primarily hands-on technical role responsible for supporting and enhancing the enterprise IT environment across both Windows and Linux platforms with a focus on system reliability, performance, and security.

The role includes leadership responsibilities involving team coordination, mentorship, and serving as the primary Information Technology (IT) decision maker. The Cyber Infrastructure Support Lead is accountable for the management and technical administration of the Information System (IS) in accordance with internal and external security requirements, overseeing day-to-day testing, implementation, deployment, maintenance, and administration of cyber systems or networks and their infrastructure hardware and software.

The ideal candidate is adaptable to diverse office situations, procedures, and demands, and maintains a proactive, solutions-oriented mindset. Primary Responsibilities
* Administer and maintain Windows and Linux systems in a secure, stable, and scalable manner
* Automate routine tasks using scripting.
* Collaborate with IA, engineering, and operations teams to deliver IT services
* Continuous upkeep, monitoring, analysis, and response to Information System, network and security events.
* Develop procedures and documentation to ensure compliance with Configuration Management (CM) for security relevant IS software, hardware, and firmware.
* Develop, implement and enforce Information Security Policies and Procedures.
* Documents compliance activities in accordance with the governing authority approved authorization package.
* Ensure proper protection and / or corrective measures have been taken when an incident or vulnerability has been discovered.
* Ensures records are maintained for workstations, servers, software, routers, firewalls, network switches, and other relevant hardware/equipment throughout the information system's life cycle.
* Ensures systems are operated, maintained, and disposed of in accordance with the governing authority approved authorization package and customer directives.
* Evaluates proposed changes or additions to the information system and advises senior site leadership of the security relevance.
* Help prioritize work, coordinate tasks, and drive accountability within the team
* Lead / conduct security IS education and training.
* Mentor other engineers in the art of cybersecurity and secure software development practices.
* Monitor system health, respond to incidents, and implement long-term fixes
* Participate and remain active within the Change Control Board (CCB) process.
* Participate and remain active within local Scrum Boards.
* Participates in internal/external security audits/inspections; performs risk assessments and Continuous Monitoring.
* Personnel management for their team.
* Provide technical guidance and mentorship to junior administrators (≈20% leadership)
* Support compliance and security requirements (patching, STIGs, audits, etc.)
* Training/Mentoring, education, PTO planning/development/submittal, remote work requests, end of day report requirements, quarterly check-ins, yearly reviews, and timesheet verifications/approvals.
* Working with ISSM and FSO investigations of computer security violations and incidents, reporting as necessary to both the Facility Security and Senior Program Managers.
* Working with the ISSM and FSO, author, review and update IS Authorization documentation (Body of Evidence) to support IS Assessment and Authorization activities. Basic Qualifications
* Must currently hold active TOP SECRET clearance.
* Bachelor's degree and 8 – 12 years related experience in Information Systems, Computer Science or related field or a master’s with 6 – 10 years of related experience. Additional relevant experience, training, and / or certification may be considered in lieu of degree.
* Detailed understanding of the Risk Management Framework (RMF), NIST, ICD, and CNSS standards.
* Must currently…
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