Estimator, Engineering, Mechanical Engineer

Together We Build – Partnership, Innovation, Excellence, and Safety

Fab Logix is built on the principle of doing what we say we are going to do. Our execution strategy is powered by cutting‑edge automation, seamlessly connecting digital drawings directly to our machines. Housed in a modern 150,000‑square‑foot facility, we are able to provide high throughput capacity to deliver on the most challenging schedules. Fab Logix is part of Kelso Industries, with 3,500+ employees across 29 operating companies, delivering top HVAC, mechanical, plumbing, refrigeration, and electrical solutions nationwide.

Join us to grow your career, make an impact, and be part of a high-performing team. Learn more about us at

Location: Duncan, SC or open to Hybrid remote

Job Type: Full‑time

We are seeking an experienced and dynamic Mechanical Estimator responsible for preparing accurate, timely, and competitive cost estimates for industrial pipe fabrication projects, including process piping, multi‑trade modular assemblies, and associated structural steel. This role supports industrial clients across markets such as pharmaceutical, chemical, data centers, food & beverage, and advanced manufacturing.

The ideal candidate is highly skilled in model‑based take‑offs, understands fabrication‑driven estimating, and can collaborate effectively with engineering, operations, and project teams to develop executable scopes and pricing.

• Carbon steel, stainless steel, and specialty process piping
• Multi‑trade modular assemblies (pipe, structural steel, supports, equipment integration)
• Structural steel associated with pipe racks, skids, and modules
• Perform quantity take‑offs using:
  • Model‑based take‑offs from Navisworks
  • Orthographic drawings
  • Isometric drawings
• Develop labor, material, equipment, and subcontractor pricing aligned with fabrication and modular execution strategies
• Evaluate constructability, fabrication sequencing, and modularization opportunities during the estimating phase
• Navigate federated models to identify scope, extract quantities and validate model data against drawings and specifications
• Coordinate with engineering to resolve discrepancies between models, isometrics, and orthographic views
• Apply current market material cost data and production rates specific to shop fabrication and modular assembly
• Solicit and evaluate vendor and subcontractor quotes for pricing and availability
• Ensure compliance with industry standards, codes, and safety regulations
• Identify project risks, assumptions, exclusions, and clarifications
• Develop pricing narratives and scope summaries to support proposal submissions
• Participate in internal estimate reviews and handoffs to project management
• Support business development and client pursuits with conceptual, budgetary, and detailed estimates
• Participate in scope alignment meetings with mechanical contractors, EPCs, and owners
• Assist in post‑award estimate validation and turnover to operations
• Assist with procurement of material post‑award

• Strong experience with:
• Model‑based quantity take‑offs using Navisworks
• Orthographic and isometric piping take‑offs
• Solid understanding of:
• Structural steel fabrication and erection interfaces
• Familiarity with piping specifications, material grades, welding requirements, and QA/QC impacts on cost
• Proficiency in estimating software, Excel, and digital take‑off tools (e.g., AutoCAD, MS Excel, Navisworks).

• 5+ years of estimating experience in:
• Pipe fabrication, mechanical contracting, or industrial construction
• Modular or prefabricated systems (preferred)
• Experience estimating work for industrial clients such as pharma, chemical, data center, or manufacturing facilities

• Detail‑oriented with strong analytical and organizational skills
• Ability to interpret incomplete or evolving design documents
• Strong communication skills for cross‑functional and client‑facing collaboration
• Practical, execution‑focused mindset aligned with fabrication‑driven delivery

• Accuracy of estimates versus actual fabrication and modular execution costs
• Timeliness and completeness of estimate deliverables
• Q…