Senior Mechanical Estimator: Lead Piping & Weld Bids

Strike, LLC; Spring, Northern (TX, KY); Hybrid; USD 120,000 - 180,000; Full time

Job summary

Strike, LLC is seeking a Senior Mechanical Estimator in Spring, Texas to independently develop accurate estimates for piping, mechanical, welding, equipment setting, and facility work. You will interpret drawings, validate constructability, evaluate vendor quotes, and coordinate with internal teams to ensure precise pricing and execution alignment.

Responsibilities include leading multiple bids, updating cost data, mentoring junior estimators, and supporting handoff to project teams to minimize

Qualifications

• Bachelor's degree in construction management, engineering, or related field preferred.
• 5+ years estimating experience in the Midstream Oil & Gas industry.
• Proven experience estimating pipelines, facilities, and terminals.
• Familiarity with ASME, API, and mechanical construction specifications.

Responsibilities

• Develop complete and accurate mechanical estimates from drawings, specifications, and bid documents.
• Perform detailed takeoffs for piping, welding, equipment, valves, structural components, and mechanical systems.
• Analyze drawings for constructability issues, scope gaps, and quantity discrepancies.
• Prepare labor build-ups using production rates, craft hours, crew compositions, and historical data.
• Utilize Supply Chain to solicit, evaluate, and normalize vendor and subcontractor quotes.
• Attend pre-bid meetings and job walks to assess site conditions and risks.
• Identify risks, assumptions, exclusions, and prepare proposal clarifications.
• Coordinate with project managers, engineering, and field teams to validate installation methods and labor assumptions.
• Support value engineering and alternative construction approaches.
• Prepare estimate summaries, cost breakdowns, and pricing sheets for internal review.
• Maintain cost data, unit rates, and historical production information.
• Support conceptual, budgetary, and FEL-level estimates as needed.
• Provide complete estimate logic, quantities, and assumptions during project handoff.
• Supply Project Controls with required cost data for accurate job setup and tracking.
• Manage multiple bids and communicate status updates to leadership.
• Ensure estimate files, calculations, and supporting documents are organized and traceable.

Skills

Mechanical takeoff

Piping materials

Labor estimates

Reading P&IDs

Estimation software

Excel advanced

Cost modeling

P&ID isometrics

Education

Bachelor's degree in construction management or engineering

5–10 years field estimating experience

Professional certifications (AACEI CEP, PMP, ASPE) preferred

Tools

InEight

HeavyBid

Navisworks

Bluebeam

Job description

Strike, LLC is seeking a Senior Mechanical Estimator in Spring, Texas to independently develop accurate estimates for piping, mechanical, welding, equipment setting, and facility work. You will interpret drawings, validate constructability, evaluate vendor quotes, and coordinate with internal teams to ensure precise pricing and execution alignment.

Responsibilities include leading multiple bids, updating cost data, mentoring junior estimators, and supporting handoff to project teams to minimize