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Systems Administrator Security Clearance

Job in Lexington, Middlesex County, Massachusetts, 02421, USA
Listing for: Encode
Full Time position
Listed on 2026-01-01
Job specializations:
  • IT/Tech
    Cybersecurity, IT Support
Job Description & How to Apply Below
Position: Systems Administrator with Security Clearance
Key Responsibilities:

• Design, build, configure, and maintain Linux and Solaris-based development and test environments.

• Install, configure, patch, and secure systems and network devices following DISA STIGs and cybersecurity best practices.

• Manage user accounts, Active Directory integration, system documentation, and access controls.

• Support and secure Cisco routers and switches.

• Configure and troubleshoot single-board computers (SBCs) from vendors such as Themis, Motorola, and GE, running Solaris, Linux, or VxWorks.

• Provide system performance tuning, capacity planning, software installation, and mass storage allocation.

• Automate and virtualize system deployment and management where applicable.

• Identify and evaluate new vendor products, tracking performance and reliability over time.

• Serve as a point of escalation for critical incidents, coordinating with helpdesk and engineering teams to resolve system-level issues.

• Develop and distribute general IT communications, including planned outages and downtimes.

• Participate in the setup and execution of network testbed systems, including deployment at government and contractor facilities across the U.S.

• Collaborate with classified environments and maintain strict compliance with security protocols.

Minimum Qualifications:

• Bachelor’s Degree in Computer Science, Electrical Engineering, or related technical field.

• 20+ years of experience in systems administration with Solaris and Linux platforms.

• 15+ years of experience supporting Red Hat Linux (RHEL 5, 6,
7) and Ubuntu.

• 15+ years of experience with Cisco networking equipment (routers, switches).

• 15+ years of experience with network test bed systems and SATCOM-related infrastructure (specifically AEHF and Milstar).

• 10+ years of experience implementing and maintaining systems in compliance with DISA STIGs.

Hands-on experience with Themis, Motorola, and GE SBCs.

• Current Active Top Secret Clearance is mandatory.

• Strong documentation and communication skills. At Encode, we believe that our employees are our greatest asset, and we are committed to fostering a supportive and inclusive work environment. We offer a comprehensive benefits package that includes health insurance, retirement plans, and generous paid time off. Our flexible work arrangements and emphasis on work-life balance ensure that our employees can achieve their professional goals while maintaining a healthy personal life.

Additionally, we provide opportunities for continuous learning and career advancement, including professional development programs and access to cutting-edge technologies.
As a cleared facility, we have a particular need for individuals with active Secret or Top Secret clearances. Your expertise and security clearance would be invaluable in supporting our mission-critical projects and ensuring the highest standards of security and compliance.
We would love to discuss how your experience and skills align with our needs and explore potential opportunities with Encode. If you are interested in learning more, please reply to this email with your updated resume and a convenient time for a brief conversation.
Thank you for considering this opportunity. We look forward to the possibility of working together and contributing to your professional journey.
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