Estimator / Scheduler

Tallgrass; Houston (TX); On-site; USD 140,000 - 190,000; Full time

Job summary

Tallgrass is seeking an experienced Estimator / Scheduler to develop and maintain cost estimates and project schedules for large-scale EPC projects in the Houston area. You will collaborate with engineering, procurement, and construction teams to ensure budgets, timelines, and scope align with project goals.

The role requires strong expertise in Primavera P6 and MS Project, with a track record of delivering accurate estimates and reliable project controls data for major capital programs.

Qualifications

• BS/BA in Business, Engineering, or related field.
• 10+ years of combined experience in cost estimating and scheduling for large EPC projects.
• Proficient in Primavera P6 and MS Project scheduling software.
• Strong background in developing detailed cost estimates and project schedules.

Responsibilities

• Lead the development of comprehensive cost estimates (FEL 1–3) from concept through execution.
• Develop and maintain detailed project schedules using Primavera P6, OPC, and MS Project.
• Review bids and ensure alignment with project scope and financial expectations.
• Coordinate with engineering, procurement, and construction teams to ensure schedule integrity.
• Provide forecasts and progress updates to stakeholders and management.

Skills

Primavera P6

MS Project

Cost Estimating

Schedule Development

Data Analysis

Excel

Communication

Education

BS/BA in Business, Engineering, or related field

Tools

Excel

PowerPoint

MS Office

Job description

JOB DESCRIPTION

The Estimator / Scheduler is responsible for developing, maintaining, and analyzing cost estimates and project schedules for large-scale EPC projects. This role ensures that project timelines and budgets are accurate, competitive, and aligned with project scope, industry standards, and market conditions. The Estimator Scheduler collaborates closely with engineering, procurement, and construction teams, supporting project controls, proposal efforts, and the successful execution of complex projects.

Primary Purpose

JOB DESCRIPTION

The Estimator / Scheduler is responsible for developing, maintaining, and analyzing cost estimates and project schedules for large-scale EPC projects. This role ensures that project timelines and budgets are accurate, competitive, and aligned with project scope, industry standards, and market conditions. The Estimator Scheduler collaborates closely with engineering, procurement, and construction teams, supporting project controls, proposal efforts, and the successful execution of complex projects.

Responsibilities

Essential duties and responsibilities:

Cost Estimating

• Lead the development of comprehensive cost estimates (FEL 1, FEL 2, and detailed estimates) from concept through execution.
• Analyze project scope, route complexity, terrain, environmental factors, and schedule impacts to produce reliable estimates.
• Prepare quality take-offs, labor, material, equipment, and other direct cost estimates.
• Maintain and update cost databases, utilize historical data to improve estimate accuracy.
• Review vendor and contractor bids for compliance with project scope and financial expectations.
• Prepare and deliver presentations to communicate project proposals, estimates, and status updates to stakeholders.
• Identify and analyze factors influencing cost, including direct and indirect cost, and review these findings with upper management to support decision‑making.
• Compile and review engineering reports, ensuring all scope elements are properly included.

Schedule Development & Management

• Develop, maintain, and update detailed project schedules using Primavera P6, OPC and Microsoft Project.
• Coordinate with engineering, procurement, and construction teams to ensure alignment of schedules with project scope and deliverables.
• Analyze schedule impacts, constraints, and risk, to recommend mitigation strategies.
• Assess progress and quality of project controls work, providing accurate forecasts and completion estimates.
• Review and validate project schedule estimates for accuracy and feasibility.
• Knowledge of project controls principles earned value management (EVM) and familiarity with critical path method (CPM).
• Integration of contractors schedules and assist with time impact analysis related to change orders or scope adjustments.
• Proficient in use of Excel to develop progress curves and data analytics.

Qualifications

Minimum requirements:

Education

• BS/BA in Business, Engineering, and/or related field experience

Experience/Specific Knowledge

• 10+ years of combined experience in cost estimating and project scheduling for large EPC projects (petrochemical, LNG, oil & gas, power, or infrastructure).
• Must have extensive experience in Major Projects with a growth portfolio of USD 1 Billion plus.
• Proficient in Primavera P6 and Microsoft Project scheduling software.
• Strong background in developing detailed cost estimates and project schedules.
• Experience with project controls, risk management, and schedule/cost analysis.
• Knowledge of EPC contract types, procurement strategies, and industry standards (e.g., AAC,CSI)
• Proficient in Microsoft Office Suite (Excel, Word, PowerPoint, Outlook).

Certifications, Licenses & Registrations

• Must possess and maintain a valid driver’s license and a driving record satisfactory to the company and its insurers (for travel).

Competencies, Skills & Abilities

• Exceptional attention to detail and organizational skills.
• Strong analytical, mathematical, and data analysis skills.
• Excellent written and verbal communication and presentation skills.
• Ability to manage multiple projects and deadlines simultaneously.
• Strong interpersonal skills for effective collaboration across disciplines.
• Ability to coach and mentor team members.
• Demonstrated ability to work independently and as part of an integrated project team.

Physical Demands

• Sitting; standing; walking or moving throughout facility; driving; talking; seeing (specific vision abilities required by this job include close vision, distance vision, color vision, peripheral vision, depth perception and ability to adjust focus); hearing; feeling; bending or stooping; squatting or crouching; reaching; kneeling; pushing; pulling; lifting up to 25 lbs.
• Must be able to sit for prolonged periods of time.
• The employee is regularly required to use hands to type, touch, handle, or feel. The employee is required to talk and hear. The employee is frequently required to stand and reach with hands and arms. The employee is occasionally required to walk and climb or balance. The employee must regularly lift and/or move up to 10 pounds and occasionally lift and/or move up to 25 pounds.

Working Conditions

• Will work non-traditional hours as needed.
• Travel is required.
• Required to carry a cell phone and be available to respond during working and non-working hours.
• Candidates will be required to clear a drug screen and complete a background check, including a credit report for certain positions after an offer has been extended and prior to being employed.

Supervisory Responsibility

• Yes

Preferred Education, Experience, Certifications, Competencies, Skills, & Abilities

• N/A

Other Responsibilities

• The above statements describe the general nature and level of work being performed. This position may perform other duties as assigned.

Above the minimum requirements, not required but advantageous in this position:

• N/A