Senior Specialist, Proposal Management Senior Specialist, Proposal Management (Parametric Estimator)
L3HARRIS Technologies
Canoga Park, CA · Posted October 6, 2026
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About the job
Job Title: Senior Specialist, Proposal Management (Parametric Estimator)
Job Code: 45291
Job Location: Canoga Park, CA (Preferred) or Huntsville, AL.
Job Schedule:9/80: Employees work 9 out of every 14 days – totaling 80 hours worked – and have every other Friday off
Job Description:
We are seeking a Senior Specialist, Proposal Management (Parametric Estimator) to join our team in Canoga Park, CA or Huntsville, AL. The ideal candidate in this parametric estimating role will be involved with developing, analyzing, and validating cost models that link technical requirements to cost. They will also ensure compliance with proposal standards and support program and supply chain decision-making.
Essential Functions:
Develop and validate parametric cost models: Use commercial/government tools (e.g., TruePlanning, SEER) and custom models to correlate operational/technical requirements with cost.
Analyze historical and comparative data: Identify trends and establish valid, supportable cost bases for future work.
Collaborate across disciplines: Work with Engineering, Manufacturing, Supply Chain, Accounting, Finance, and Program teams to ensure estimates meet quality and compliance standards.
Develop Cost Estimating Relationships (CERs): Build auditable, repeatable models that predict future work costs (should cost projections etc).
Present findings: Communicate estimating data, analyses, and recommendations to management and stakeholders.
Ability to obtain a US Secret Clearance.
Qualifications:
Bachelor’s Degree in engineering, data science, mathematics, or related field and a minimum 6 years of prior relevant supply chain experience. Graduate Degree in engineering, data science, mathematics, or related field and a minimum of 4 years of prior related supply chain experience. In lieu of a degree, minimum of 10 years of prior related supply chain experience.
Preferred Additional Skills:
Proficiency in Excel, data analytics, and parametric modeling tools; experience with large bills of materials
Familiarity with government contracting rules (FAR/DFARS) for defense roles
Strong analytical, communication, and presentation abilities; ability to work with diverse teams and executive leadership
Aerospace manufacturing/machining knowledge is a plus (example engines, valves, rings, etc)
Background in cost estimation, program management, and cross-functional collaboration
In compliance with pay transparency requirements, the salary range for this role in the State of California is $88,000 - $164,000. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.
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