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Senior Cost Estimating Specialist - Millennium Space Systems

Los Angeles, California; El Segundo, California Job ID JR2025489883 Category Finance Role Type Onsite Post Date Dec. 31, 2025 Security Clearance Required
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Job Description

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Job Description
Millennium Space Systems (MSS), a part of Boeing Defense, Space and Security (BDS) is seeking a Senior Cost Estimating Specialist who will be responsible for leading major cost estimating efforts for Millennium Space Systems. As a member of the Estimating team, you will be accountable for the development of cost estimates and all associated cost articles (basis of estimates, bill of materials, work breakdown structures, cost volumes, etc.), ensure accuracy and reasonableness, and collaborate with cross-functional teams to support business growth. This is an onsite role at our El Segundo, California.

Position Responsibilities:

  • Lead the cost estimating effort in preparing detailed and accurate cost estimates for government (Department of Defense, NASA, and other federal agencies) projects.
  • Analyze Requests for Proposals (RFPs), Statement of Works (SOWs), Technical Requirements Documents (TRDs), and other proposal documentation to develop cost estimates that align with customer requirements.
  • Generate submission ready cost proposal articles, including cost volumes, rate justifications, bill of materials, basis of estimates, supplier consent packages, etc.
  • Work closely with program management, engineering, finance, and contracts to ensure alignment between the engineering solutions and cost estimates.
  • Ensure compliance with Federal Acquisition Regulations (FAR), Defense Federal Acquisition Regulation Supplement (DFARS), Cost Accounting Standards (CAS), Truth in Negotiations Act (TINA), and other government regulations, as necessary.
  • Assists with program baselining and execution efforts.
  • Track and analyze cost estimate verses actual costs to recommend mitigation strategies to resolve the deltas and identify opportunities to inform future proposal efforts.
  • Conduct risk analysis, what-ifs, and cost realism assessments to ensure pricing accuracy and executability.
  • Generate detailed cash flow projections.
  • Present cost estimates and pricing strategies to executive leadership and participate in customer negotiations and other cost discussions.
  • Continually assess and improve the estimating processes and tools used by the team to maintain efficiency and accuracy.
  • Support audit reviews by government agencies, including DCMA and DCAA, ensuring transparency and adherence to cost estimating policies and procedures.

Basic Qualifications (Required Skills/Experience):

  • Bachelor’s degree or higher in an Engineering or Business domain
  • 5+ years of experience leading major cost estimating efforts for a Government customer.
  • Strong communications and analytical skills necessary to articulate pricing strategy to senior business and finance leaders
  • Experience reviewing proposal request for proposal documentation including, but not limited to, Technical Requirements Documents, Statement of Works, solicitation instructions, CDRL and GFX lists, etc.
  • Experience generating work breakdown structures, cost estimates and associated cost volumes
  • Experience working with technical and other functional teams to develop accurate and reliable cost estimates
  • Experience preparing and analyzing detailed cost summaries, learnings curves, cash flows, liability profiles and other price summaries required for corporate approval packages
  • Familiarity with FAR, DFARS, CAS, and TINA
  • Advanced proficiency with Microsoft Office, specifically Microsoft Excel
  • Must be able to obtain and maintain a TS/SCI security clearance.

Preferred Qualifications (Desired Skills/Experience):

  • Master’s Degree in Engineering or Business domain
  • 8+ years of experience leading major cost estimating efforts for a Government customer
  • Experience generating basis of estimates and bill of materials prior to engineering and functional inputs
  • Experience reviewing and generating proposal Integrated Master Schedules, DCMA 14 point checks, and/or Schedule Risk Assessments.
  • Experience with risk analysis, specifically the cost and schedule quantification of risks
  • High level understanding of the design, development, and/or operations of space vehicles
  • Experience with DoD and/or Intelligence Community proposals
  • Experience with ProPricer or other relevant pricing software

Conflict of Interest:

Successful candidates for this job must satisfy the Company’s Conflict of Interest (COI) assessment process

Drug Free Workplace:

Millennium Space Systems, A Boeing Company is a Drug Free Workplace where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

Pay & Benefits:
Millennium Space Systems, A Boeing Company offers a very competitive benefits package to include medical, dental, vision, and 401k plan.

  • Level 5: $143,650 - $211,250

Equal Opportunity Employer:

Millennium Space Systems, A Boeing Company is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.


Applications for this position will be accepted until Feb. 06, 2026


Export Control Requirements:

This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a “U.S. Person” as defined by 22 C.F.R. §120.62 is required. “U.S. Person” includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Export Control Details:

US based job, US Person required

Relocation

Relocation assistance is not a negotiable benefit for this position.

Security Clearance

This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim and/or final U.S. Top Secret/SCI Clearance Post-Start is required.

Visa Sponsorship

Employer will not sponsor applicants for employment visa status.

Shift

This position is for 1st shift


Equal Opportunity Employer:

Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

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Your Benefits

No matter where you are in life, our benefits help prepare you for the present and the future.

  • Generous company match to your 401(k).
  • Industry-leading tuition assistance program pays your institution directly.
  • Fertility, adoption, and surrogacy benefits.
  • Up to $10,000 gift match when you support your favorite nonprofit organizations.
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These programs are subject to eligibility requirements and other conditions, which may differ for employees of certain subsidiaries or business units, or union-represented employees depending on bargaining agreement terms. If this information conflicts with the program documents, the latter shall control. This material is informational only.

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