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Atlanta, GA; Birmingham, AL; Bremen, GA; Carrollton, GA; Conyers, GA; Duncan, SC; Durham, NC; Florence, AL; Heflin, AL; Hope Hull, AL; Montgomery, AL; Remote
Posted · 30.09.2026
Greenhouse (US)

# Fire Sprinkler Senior Designer (Remote)

Mullins Mechanical

  Position Overview We are seeking an experienced Senior Fire Protection Designer to join our growing team. The ideal candidate will possess a strong background in fire sprinkler system design, code compliance, hydraulic calculations, stock listing, and coordination with clients, engineers, and field personnel. This position requires a high degree of technical proficiency, attention to detail, and the ability to manage multiple projects simultaneously from concept through completion.   Key Responsibilities Develop detailed fire sprinkler system designs and layout drawings using HydraCAD Software Perform hydraulic calculations and material take-offs in accordance with NFPA standards and local codes. Review architectural, structural, and mechanical plans to ensure proper system coordination. Prepare submittals, fabrication drawings, and as-built documentation. Collaborate with project managers, estimators, and field supervisors to ensure design intent and code compliance are achieved. Mentor junior designers and provide technical guidance as needed. Stay current with updates to fire protection codes and standards (NFPA, IBC, IFC, etc.). Participate in project meetings and communicate effectively with clients, contractors, and AHJs (Authorities Having Jurisdiction).   Qualifications Minimum 5–10 years of experience in fire sprinkler or fire protection design. Proficiency in AutoCAD, HydraCAD, Navisworks, and/or Revit. In-depth knowledge of NFPA, FM Global, and other related standards. NICET Level III or IV in Water-Based Systems Layout (preferred). Strong understanding of building and fire codes. Excellent written and verbal communication skills. Ability to work independently and manage multiple design projects. Join UsMullins Mechanical ranked #243 on the 2024 ENR Top Specialty Contractors list, #48 in the Nation and #5 in the Southeast among Firms in Mechanical. We’re proud to be one of the fastest growing privately held companies in America. We’re a self-performing specialty contractor specializing in design-build applications, HVAC systems, plumbing, process piping systems, boiler and chiller systems, equipment installation and rigging, plant relocation and maintenance, fire protection, and metal fabrication. Our projects are often in industrial and heavy commercial environments such as manufacturing facilities, automotive plants, chemical plants, distribution centers, warehouses, data centers, and other large facilities.

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