Strategic Preconstruction Leader — Mechanical Systems

gpac LLC.; St. Louis (MO); On-site; USD 120,000 - 160,000; Full time

Benefits offered by this job

Annual bonus

Health insurance

Life insurance

401(k) with match

Paid time off

Career growth opportunities

Job summary

gpac LLC. in St. Louis, MO seeks a Senior Preconstruction Manager to lead preconstruction for commercial and industrial mechanical projects.

You will develop budgets, support negotiated work, and guide projects from pursuit to turnover, working with owners, GC's, engineers, and internal teams. The ideal candidate has 10+ years in mechanical construction, strong estimating experience, and proficiency with estimating software and MS Office.

Qualifications

• 10+ years of experience in mechanical construction, with a background in preconstruction, estimating, project development, or related leadership roles.
• Strong technical understanding of commercial HVAC, plumbing, piping, and sheet metal systems.
• Experience with design-build and design-assist project delivery.
• Ability to develop conceptual budgets and evaluate project scope before complete construction documents are available.
• Experience working directly with owners, general contractors, engineers, and other project stakeholders.
• Strong knowledge of mechanical construction costs, labor, equipment, and installation methods.
• Proficiency with estimating software, Microsoft Office, and construction documentation.
• Strong communication, negotiation, organizational, and leadership skills.
• Bachelor's degree in Mechanical Engineering, Construction Management, or a related field, or equivalent industry experience.

Responsibilities

• Lead preconstruction activities from initial project pursuit through budgeting, design development, pricing, and project turnover.
• Develop conceptual and detailed estimates for HVAC, plumbing, process piping, and sheet metal systems.
• Work with owners, architects, engineers, and general contractors to develop practical, cost-effective mechanical solutions.
• Support design-build and design-assist projects, including scope development, budgeting, and constructability reviews.
• Identify value engineering opportunities, project risks, and potential cost savings.
• Build and maintain relationships with clients, contractors, and industry partners.
• Participate in project interviews, presentations, and negotiated project pursuits.
• Coordinate with estimating teams, vendors, and subcontractors to develop accurate pricing and equipment selections.
• Oversee the transition from preconstruction to project management and field operations, ensuring clear communication of budgets, schedules, scope, and expectations.
• Mentor team members and contribute to improvements in estimating and preconstruction processes.

Skills

Leadership

Communication

Estimating

Negotiation

Education

Bachelor's degree in Mechanical Engineering, Construction Management, or related field, or equivalent

Tools

Estimating software

Microsoft Office

Job description

gpac LLC. in St. Louis, MO seeks a Senior Preconstruction Manager to lead preconstruction for commercial and industrial mechanical projects.

You will develop budgets, support negotiated work, and guide projects from pursuit to turnover, working with owners, GC's, engineers, and internal teams. The ideal candidate has 10+ years in mechanical construction, strong estimating experience, and proficiency with estimating software and MS Office.