Senior Construction Scheduler

Company: ISI Professional Services
Location: Arlington
Posted on: February 21, 2026

Job Description:

Job Description Job Description About ISI Professional Services: ISI Professional Services provides mission-critical expertise across a wide range of functional and operational areas. ISI brings over 30 years of experience providing tailored workforce and project management solutions across the U.S. we specialize in Program and Project Management, Construction Management, Real Estate Advisory, Acquisition Management, Logistics, Leadership Development, and more. At ISI, our people are the heart of our success. We prioritize engagement, professional growth, and a strong culture to succeed together. As a Service-Disabled Veteran Owned Small Business (SDVOSB), we are proud to support Veterans by creating opportunities for them to succeed. Join ISI and be part of a team making a meaningful impact—delivering excellence and exceeding expectations every step of the way. 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. Position Summary: ISI is seeking a Senior Scheduler to support construction-phase activities for major federal construction projects at the Pentagon. This position will focus on post-award schedule evaluation, including the review and analysis of general contractor-developed Critical Path Method (CPM) schedules. The Scheduler will support the government by ensuring contractor progress aligns with contractual requirements and project milestones. This individual will review baseline schedules, monthly updates, fragnets, schedule revisions, change orders, and time impact analyses (TIAs) to identify risks, assess delays, and support negotiation or resolution strategies. The ideal candidate will be a proactive communicator who understands federal construction contract requirements and industry-standard scheduling methodologies. Essential Job Functions: Review contractor-submitted baseline CPM schedules and evaluate compliance with contractual requirements. Analyze monthly schedule updates, progress narratives, fragnets, and recovery schedules. Evaluate the impact of changes, delays, and modifications using Time Impact Analysis (TIA) techniques. Coordinate with government project managers and construction teams to confirm actual progress against planned activities. Identify schedule slippage, float erosion, concurrent delays, and critical path deviations. Review and comment on proposed schedule revisions and sequencing changes submitted by contractors. Participate in contract modification reviews and negotiation meetings related to time and delay claims. Support claims analysis by providing detailed schedule impact assessments. Prepare schedule status reports and briefing materials for senior federal leadership. Utilize Primavera P6 to interpret contractor data and manage internal government tracking tools. Required Qualifications: Option A: Bachelor’s degree in Construction Management, Engineering, or Architecture Minimum of 10 years of dedicated construction scheduling experience. Option B: 12 years of field construction/superintendent experience Minimum of 7 years of dedicated scheduling experience. Additional Required Qualifications: U.S. Citizenship with at least 3 years of residence living in the US. Must be able to pass and maintain a Public Trust clearance (HSPD-12 fingerprint background check). Strong Proficiency in Primavera P6. Demonstrated experience analyzing contractor CPM schedules and federal construction contract documentation. Position fully on-site at Arlington, VA Preferred Qualifications: Familiarity with DoD, USACE, or other federal agency schedule review practices. Knowledge of FAR and federal contracting principles. Scheduling certifications such as PSP (AACEi) or PMI-SP. Physical Requirements: The physical demands required of this position described here are of those that must be met by the selected employee to successfully perform the essential functions of this job daily. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. Must be required to occasionally move and lift 20-30 pounds. Must be able to climb, erect and maintain balance on a 30-40 pound ladder. Must be able to remain in a stationary computer position for extended periods of time. Must be able to walk up to 3 miles per day between buildings. Must be able to stand for extended periods Must be willing to work in external environments of rain, high heat and significant cold. Must be able navigate active construction sites containing uneven ground, debris, and active construction hazards such as sharp objects, electrical hazards, and potential fall hazards. Must be able to occasionally go into confined spaces and crawl Work Setting/Environment/Travel Requirements: This job operates in active construction environments and professional office environments. The position requires an eight (8)-hour workday performed between 0700 (7AM) and 1700 (5PM), Monday through Friday. employees are expected to arrive between 0700 (7AM) and 0800 (8AM). Employees cannot depart till after 1600 (4PM); limited flexibility in daily start and end times is available based on project demands To view ISI Professional Services' Equal Employment Opportunity (EEO) statement, please visit: https://www.isiwdc.com/careers/eeo -policy-statement/

Keywords: ISI Professional Services, Leesburg , Senior Construction Scheduler, Engineering , Arlington, Virginia