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McCallie Associates, Inc., a wholly owned subsidiary of Alutiiq, LLC, is accepting applications for a Subject Matter Expert (SME) Aerospace Engineer - Space Force Missile Warning Ground Mission to support the U.S. Space Force's Space Systems Command (SSC) missile warning ground mission - a major program area providing 24/7 ballistic missile and hypersonic threat warning to the joint warfighter. This role provides deep engineering expertise across the missile warning ground processing, mission management, and operational delivery threads

This position will provide senior engineering judgment to one of the most consequential mission lines in Space Sensing - the systems that turn satellite-detected threats into actionable missile warning to the President, the Secretary of Defense, combatant commanders, and warfighters in real time. Provide SME-level aerospace engineering expertise on missile warning ground processing, mission management, and operational delivery Lead engineering reviews of ground processing architectures, mission management systems, and operational software baselines Support development planning for next-generation missile warning ground capabilities, including Next-Gen OPIR ground processing Contribute to engineering analyses of end-to-end missile warning latency, accuracy, and reliability Engage with contractor program teams developing or sustaining missile warning ground processing and mission management capabilities Review and contribute to engineering change proposals, technical baseline reviews, and operational software change boards Provide engineering oversight for integration of missile warning ground with satellite and user segments Prepare technical briefings, engineering position papers, and operational readiness assessments for senior Government audiences This opportunity is for a POTENTIAL CONTRACT award and is contingent upon the contract being awarded. Consideration for a potential contract may require a signed letter of intent.

If the contract is awarded, another position posting will be available on the Company Careers portal.Active Top Secret clearance with SCI eligibility U.S. Citizenship Bachelor's degree in Aerospace Engineering, Electrical Engineering, Computer Engineering, Computer Science, Systems Engineering, Physics, or a closely related discipline from an ABET-accredited institution Minimum 15 years of progressively responsible aerospace engineering experience, with demonstrated SME-level depth in missile warning systems, satellite ground processing, or mission management systems Demonstrated experience with DoD missile warning, SBIRS, Next-Gen OPIR, or related strategic sensing missions Experience with operational ground software baselines, mission management, and 24/7 operational delivery Strong written and verbal communication; demonstrated ability to brief senior Government audiences Preferred Qualifications Master's degree or PhD in a technical discipline Prior direct support to SSC/SN, SMC, NORAD/USNORTHCOM, or predecessor Space Force / Air Force missile warning organizations Direct experience with SBIRS Mission Control Station, Next-Gen OPIR ground, or legacy missile warning ground modernization Operational missile warning crew or crew-supervisor experience Expected salary range: $190,000 to $240,000 per yearActive Top Secret clearance with SCI eligibility U.S. Citizenship Bachelor's degree in Aerospace Engineering, Electrical Engineering, Computer Engineering, Computer Science, Systems Engineering, Physics, or a closely related discipline from an ABET-accredited institution Minimum 15 years of progressively responsible aerospace engineering experience, with demonstrated SME-level depth in missile warning systems, satellite ground processing, or mission management systems Demonstrated experience with DoD missile warning, SBIRS, Next-Gen OPIR, or related strategic sensing missions Experience with operational ground software baselines, mission management, and 24/7 operational delivery Strong written and verbal communication; demonstrated ability to brief senior Government audiences Preferred Qualifications Master's degree or PhD in a technical discipline Prior direct support to SSC/SN, SMC, NORAD/USNORTHCOM, or predecessor Space Force / Air Force missile warning organizations Direct experience with SBIRS Mission Control Station, Next-Gen OPIR ground, or legacy missile warning ground modernization Operational missile warning crew or crew-supervisor experience Expected salary range: $190,000 to $240,000 per year