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Critical Infrastructure Engineer

Calvert Systems Engineering
paid time off, paid holidays, tuition reimbursement, 401(k)
United States, Nebraska, Bellevue
3906 Raynor Parkway (Show on map)
Dec 03, 2025

Critical Infrastructure Scientist/Engineer

Location: Offutt AFB/Bellevue, NE

Minimum Clearance Required: Top Secret/SCI

This position requires the ability to obtain and maintain a Top Secret/SCI U.S. Government Security Clearance. U.S. Citizenship status is required, as this position necessitates an active U.S. Government Security Clearance for employment. Non-U.S. citizens are not eligible to obtain a U.S. security clearance. The Department of Defense Consolidated Adjudications Facility (DoD CAF), a federal government agency, handles the adjudicative aspects of the security clearance process for industry applicants. Adjudicative factors which affect the outcome of the eligibility determination include, but are not limited to, allegiance to the U.S., foreign influence, foreign preference, criminal conduct, security violations, and illegal drug use.

As a Critical Infrastructure Scientist/Engineer, you will be responsible for analyzing the interaction of specific critical infrastructure systems. This position is part of an experienced team that will work together to enhance USSTRATCOM's capabilities in planning and executing Strategic Deterrence and Nuclear Command, Control, and Communications (NC3) operations.

Who You Are and What You Need:



  • Nuclear Command & Control (NC2/NC3) experience required
  • Minimum of five (5) years of experience in the following:

    • As a scientist or engineer analyzing the interaction of complex systems of critical infrastructure including:

      • Perform scientific engineering studies and technical analysis of critical infrastructure and systems
      • Perform computer modelling and simulation of nuclear weapons effects or electronic interactions with critical infrastructure
      • Understand of the technical, engineering and physical interaction of CBRN threats to critical infrastructure
      • Testing of and certification of critical infrastructure against a wide variety of physical threats


    • Staff complex packages, adjudicate content and experience with NC2/NC3 capabilities and procedures, operations platforms, communications, and modes of operations, to include current efforts in developing survivable and endurable NC2/NC3 capabilities.
    • Understand national, DOD, and CJCS guidance with specific knowledge of nuclear/CBRN survivability including: DODI 3150.09. DODI 3730.01, CJCS Instructions - 3222.01, 6210.01, 6810.01, 6811.01, PPD-35; PPD-24; PPD-40; and SI 501-2





What We Offer:



  • Comprehensive benefits including health, dental and vision for the employee and family
  • 401k Plan with a company contribution; fully vested immediately
  • Company paid Life and AD&D insurance
  • Company paid Short-Term and Long-Term Disability insurance
  • Flexible Spending Accounts
  • Paid Time Off (PTO)
  • 10 paid holidays
  • Employee Assistance Program
  • Tuition Reimbursement



Who We Are:

Calvert Systems is a Service-Disabled Veteran-Owned Small Business headquartered in Bellevue, Nebraska, with operations in eleven states and the District of Columbia. With over 20 years of trusted support to the Department of Defense, Calvert combines the strength of deep mission expertise, a workforce composed largely of veterans with the values of a family business culture. Our team is committed to exceeding customer expectations by leveraging a rich blend of operational experience, technical excellence, and a strong commitment to service.

Calvert Systems Engineering provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

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