Mechanical Estimator- Process Piping

Mullins Mechanical; Carrollton (GA); Hybrid; USD 80,000 - 120,000; Full time

Job summary

Mullins Mechanical is seeking a Senior Mechanical Estimator specialized in Industrial Process Piping to lead estimating efforts in various sectors, including chemical and power generation. The ideal candidate has experience in estimating self-performed mechanical scopes and is proficient with tools like Trimble Autobid. This role requires strong technical knowledge of piping systems, excellent analytical skills, and the ability to work effectively in a remote environment. Leadership and mentoring junior staff are key aspects of this position.

Qualifications

• Proven experience estimating for various industrial markets.
• Expert knowledge of industrial piping systems and materials.
• Strong understanding of contract structures and labor risks.

Responsibilities

• Lead estimating efforts for mechanical piping scopes.
• Perform accurate quantity take-offs from specifications.
• Mentor junior estimators and coordinate with project teams.

Skills

Estimating self‑performed mechanical and piping scopes

Technical piping knowledge

Commercial and risk management

Remote work collaboration

Leadership and mentoring

Tools

Trimble Autobid

Bluebeam

Navisworks

Job description

Senior Mechanical Estimator – Industrial Process Piping

Experience & Background

Proven experience estimating self‑performed mechanical and piping scopes across multiple US regions in industrial markets such as:

• Chemical and petrochemical
• Refining and midstream
• Power generation
• Food & beverage and sanitary process systems
• Pharmaceutical, biotech, and advanced manufacturing

Strong background estimating:

• Greenfield and brownfield projects
• Plant expansions, revamps, and live‑plant work
• Shutdowns and short‑duration industrial outages

Experience supporting Design‑Bid‑Build, Design‑Build, EPC, and negotiated project delivery methods.

Technical Piping Knowledge

Expert knowledge of industrial piping systems, including:

• Carbon steel, stainless steel, chrome/moly, alloy steels
• Sanitary and hygienic piping systems
• Plastic and lined piping (PVC, CPVC, HDPE, FRP)

Strong understanding of:

• Piping fabrication vs. field erection tradeoffs
• Weld processes, NDE, and documentation requirements
• Pipe supports, specialty valves, and packaged equipment tie‑ins

Perform accurate quantity take‑offs from P&IDs, isometrics, layouts, and specifications for projects located in multiple states; incorporate constructability, congestion, and sequencing impacts into labor productivity.

Estimating Systems & Tools

• Proficiency with estimating and take‑off platforms such as Trimble Autobid, or equivalent on‑screen takeoff software; Bluebeam; BuildingConnected / Trade Tapp.
• Ability to interpret 3D models (Navisworks, etc.) preferred.

Commercial & Risk Management

Strong understanding of contract structures, including:

• Lump sum
• GMP
• Unit rate and T&M

Ability to identify and quantify labor‑driven risks such as productivity loss, staffing constraints, schedule compression, owner‑driven operational restrictions.

Prepare detailed:

• Estimate narratives
• Labor assumptions and productivity basis
• Exclusions, clarifications, and contingency recommendations

Participate in internal risk reviews and executive pricing approvals for projects occurring simultaneously in different states.

Remote Work Capability & Distributed Team Collaboration

Highly effective working in a remote or hybrid estimating environment, maintaining productivity, accuracy, and schedule adherence without direct onsite supervision; experienced collaborating with geographically distributed teams of estimators, operations leaders, and project stakeholders using virtual meeting platforms and shared estimating systems; comfortable leading or contributing to estimates across multiple regions while ensuring consistency in labor assumptions, pricing strategy, and risk posture.

Capable of supporting limited travel requirements for site walks and constructability reviews, pre‑bid meetings and client presentations, key project kickoff or risk review milestones; travel availability aligned with monthly to quarterly needs, depending on project requirements.

Leadership & Collaboration

• Lead estimating efforts for self‑performed mechanical piping scopes.
• Mentor junior estimators and take‑off staff.
• Coordinate closely with operations and field leadership, project management, engineering and procurement.
• Support preconstruction meetings, site walks, and client presentations.

Safety & Quality

• Strong knowledge of OSHA requirements and industrial safety best practices.
• Experience incorporating site‑specific safety programs into labor and cost models.
• Understanding of QA/QC requirements related to piping fabrication and installation.

Key Attributes

• Highly analytical with a strong command of labor cost drivers.
• Detail‑oriented with excellent organizational skills.
• Clear communicator capable of defending estimates internally and externally.
• Comfortable operating in fast‑paced, competitive environments.