Construction Senior Estimator in Arlington

Job Description

ISI Professional Services provides mission-critical expertise across a wide range of functional and operational areas, with over 30 years of experience in tailored workforce and project management solutions in the U.S. The company specializes in Program and Project Management, Construction Management, Real Estate Advisory, Acquisition Management, Logistics, Leadership Development, and more.

We offer a comprehensive and competitive benefits package. The salary range represents a general guideline as ISI considers several factors when determining compensation to include but not limited to the candidate’s experience, education, skills, and market location of the position.

ISI is seeking a highly skilled Senior Estimator to support cost estimation efforts for a wide range of projects at The Pentagon. This position will collaborate closely with design teams, architects, and engineers to develop cost estimates from early planning through final design.

The Senior Estimator will be responsible for preparing Rough Order of Magnitude (ROM) estimates for project planning and budgeting, as well as detailed line-item estimates for procurement and construction. The candidate will ensure cost estimates are prepared utilizing RS Means software and that it complies with Unified Facilities Criteria (UFC), especially UFC 3-701-01, and be structured according to Construction Specifications Institute (CSI) Divisions.

This role supports federal clients with project budgeting, acquisition planning, and construction programming needs.

• Prepare Rough Order of Magnitude (ROM) cost estimates to support early design and program budgeting utilizing RS Means software.
• Prepare Independent Government Estimates (IGEs) for MILCON and repair/renovation projects utilizing RS Means software.
• Develop detailed line-item cost breakdowns for construction procurement and acquisition planning.
• Collaborate with design teams, engineers, and architects to align cost estimates with evolving project scope and technical documentation.
• Apply CSI Master Format and UFC 3-701-01 guidance in all estimates.
• Support quantity take-offs, historical pricing analysis, and market research for material, labor, and subcontractor costs.
• Review and validate A/E estimates, ensuring consistency with program goals and design intent.
• Participate in value engineering efforts and assist project managers in aligning scope to budget.
• Support the government in scope development, cost analysis, and risk identification during planning and design phases.
• Provide written summaries and cost analysis briefings to senior program and agency stakeholders.

• Minimum of 10 years of dedicated construction cost estimating experience or combined estimating and project management experience.
• Expert level knowledge/experience with RSMeans software.

• U.S. Citizenship.
• Must be able to pass and maintain a Public Trust clearance (HSPD-12 fingerprint background check).
• Demonstrated experience developing IGEs or similar detailed construction estimates for federal clients.
• Familiarity with UFC and CSI standards.

• Bachelor’s degree in Engineering, Architecture, Construction Management, Science, or Mathematics.
• Experience with DoD, USACE, or Federal construction projects.
• Professional certification such as Certified Cost Professional (CCP) or equivalent.

• Flexibility related to work hours as project demands arise.
• Occasionally required to move 5 – 15 pounds.
• Must be able to remain in a stationary computer position for extended periods of time.
• Must be able to walk and stand for extended periods, up to 2 miles per day between buildings.
• Occasionally required to navigate active construction sites containing uneven ground, debris, and active construction hazards such as sharp objects, electrical hazards, and potential fall hazards.

• Monday through Friday, Normal business hours 8:00 am – 5:00 pm

To view ISI Professional Services' Equal Employment Opportunity (EEO) statement, please visit: