Job Description

The Senior Director of Commercial Estimating directs and coordinates the development of detailed basis of estimates in support of cost and/or pricing proposals. As well as develops the Basis of Estimate (BOE) and production of BOEs by developing plans and strategies, including cost proposal data collection, converting resource estimates into cost estimates, and preparing pricing data for labor, equipment, subcontract, ODC and material costs. May direct the activities of a small group of Estimators, SMEs (subject matter experts) and consultants.

Principal Accountabilities

(Typical duties include the following, although specific duties vary by assignment or contract)

• Oversees the development and documentation of detailed basis of estimates in accordance with company process and proposal instructions; Continually enhances and improves the estimating process and procedures

• Reviews and evaluates Concept of Operations, Breakdown Structures, Cost Structures, Work Packages, and BOE Packages during proposal development.

• Manage the development of scope, schedule, budget, and estimate to complete data for initial sequencing of activities, outlining components such as labor, ODCs, materials and equipment.

• Analyze specifications, including sketches, blueprints, bills of material, or sample layout to calculate cost factors using labor and material pricing schedules and historical data.

• Compute detailed estimates for the RFP and cost drivers from personal experience, from functional representatives, subcontractors and vendors.

• Communicate and present complex issues and solutions to program leadership.

• Lead in creation of Work Breakdown Structure (WBS) and development of schedules and budget data (including resource loading) for those WBS elements.

• Develop proposal input to address requirement change requests as well as revise estimates when scope of project changes.

• Work closely with the department leads to ensure the estimates are submitted on time and compliant.

• Mentors and provides on the job training to less experience estimators.

• Liaison between the estimating department and other functional area departments to ensure that compliant data is being provided to proposal submission.

• Provide QA/QC support to the estimating process.

• Review manufacturing parts lists for accuracy and inputs data.

• Conduct research and gather information such as Technical Manuals and Parts Lists

• May prepare final estimate for domestic and international commercial proposals.

• Perform other duties as assigned.

• Supports preparation for the Finance Pricing Review by preparing and reviewing supporting data and slides.

Knowledge and Skills

• Thorough knowledge of activities to identify materials, costs, and procedures in areas ranging from construction to services work for commercial contracts like Logistics, Supply, Facility Maintenance, Roads & Grounds, Custodial, Vehicle maintenance, Potable Water, Wastewater Treatment, Environmental, etc.

• Proficient in multiple software applications including MS Office, MS SharePoint, Project Management Systems (Primavera and MS Project), Take-off and Estimating software

• Professional estimating related and PMP certifications are desired.

• Advanced analytical and quantitative skills

• Ability and willingness to lead and train other employees in the estimating, cost and/or pricing process.

• Effective leadership, excellent communication, strong interpersonal skills and the ability to develop and maintain positive, cooperative, team-oriented relationships with co-workers, supervisors, managers, clients, and others in contact with the job.

• Must have the ability to coordinate multiple concurrent tasks.

• Competent at presenting data and analysis to peers, managers, directors and VPs

Experience & Education

• Bachelors degree in construction science, engineering, accounting, or associated discipline preferred from an accredited college; may substitute two (2) additional years of experience in related field for each year of college

• Minimum Twelve (12) years or more of cost estimating, finance, design engineering and/or commercial estimation experience.

• Must have considerable experience, gained through work in the industry, internships, or cooperative education programs.

• Additional experience/education may be required by contract or assignment.

Physical Requirements/Working Environment

• Must be capable of working with in the cyclical nature of a competitive proposal schedule that often requires extended hours.

• Generally, works in normal office environment, but may be required to travel domestically and internationally on short notice.

Travel

• Ability to travel domestically and internationally.

Disclaimer

The above information on this description has been designed to indicate the general nature and level of work performed by employees within this classification. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities, and qualifications required of employees assigned to this job.

Compensation Details

175000.00

The compensation range or hourly rate listed for this position is provided as a goodfaith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance

• Paid time off and holidays

• Retirement benefits (including 401(k) matching)

• Educational reimbursement

• Parental leave

• Employee stock purchase plan

• Taxsaving options

• Disability and life insurance

• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamaraO'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting

01/07/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, lowincome status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters ( .

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