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Systems Administrator 3- TS/SCI - Omaha, NE

M.C. Dean
paid time off, tuition reimbursement, 401(k), retirement plan
United States, Nebraska, Omaha
Oct 10, 2025
Overview

M.C. Dean is Building Intelligence. We design, build, operate, and maintain cyber-physical solutions for the nation's most recognizable mission critical facilities, secure environments, complex infrastructure, and global enterprises. The company's capabilities include electrical, electronic security, telecommunications, life safety, automation and controls, audio visual, and IT systems. M.C. Dean is headquartered in Tysons, Virginia, and employs more than 5,800 professionals who engineer and deploy automated, secure, and resilient power and technology systems; and deliver the management platforms essential for long-term system sustainability.

Why join M.C. Dean? Our people are inspired by the way engineering and innovation enhance customer outcomes, improve lives, and change the world for the better. We are driven by our core values of agility, expertise, and trust.

Clearance Requirement: Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. Citizenship, for access to classified information; Active Top-Secret/SCI Clearance required.


Responsibilities

  • Administer both developmental and operational environments for global, mission-critical systems.

  • Manage all aspects of complex physical security backend systems, including:

    • Network administration

    • Operating system configuration

    • Hardware and software management

  • Ensure systems meet stringent service level agreements (SLAs) for mission uptime.

  • Provide Tier 3 technical support for complex system and network issues related to physical security systems.

  • Collaborate and communicate effectively with:

    • Team members and mission stakeholders

    • Customers, manufacturers, vendors, and technical specialists

  • Analyze system performance and functional requirements to develop and maintain large-scale enterprise system architectures.

  • Implement and manage system management and software deployment tools to automate system administration.

  • Configure and utilize system health monitoring tools to perform:

    • Preventative and predictive maintenance

    • System backups

    • Error log aggregation and monitoring

    • Database size and integrity checks

  • Prepare and maintain detailed system documentation, including:

    • System architecture and configuration

    • Change requests

    • Configuration baselines using system management tools


Qualifications

  • Requires a bachelor's degree in a technical discipline with 5+ years of experience or 3+ with a Master's degree or 8+ years of experience with an Associates degree or HS Diploma or GED with 10+ years of experience
  • 2+ years of relevant work experience providing system administration to Elastic and or Linux based systems.
  • Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. Citizenship, for access to classified information; Active Top-Secret/SCI Clearance required.
  • Requires IAT Level 2

We offer an excellent benefits package including:

  • A competitive salary
  • Medical, dental, vision, life, and disability insurance
  • Paid time off
  • Tuition reimbursement
  • 401k Retirement Plan
  • Military Reserve pay offset
  • Paid maternity leave

Abilities

  • Exposure to computer screens for an extended period of time.
  • Sitting for extended periods of time.
  • Reach by extending hands or arms in any direction.
  • Have finger dexterity in order to manipulate objects with fingers rather than whole hands or arms, for example, using a keyboard.
  • Listen to and understand information and ideas presented through spoken words and sentences.
  • Communicate information and ideas in speaking so others will understand.
  • Read and understand information and ideas presented in writing.
  • Apply general rules to specific problems to produce answers that make sense.
  • Identify and understand the speech of another person.
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