Preconstruction Engineer

Location: City of Westminster

Position Title: Preconstruction Engineer FLSA Status: Exempt
Department: Preconstruction Date: 2026
Reports to: Senior Precon Manager Location: Westminster, CO
Wage Range: $75,000-$95,000 + annual discretionary bonus
Application close date: December 31, 2026

Benefits include: Medical, dental, vision, 401K, Long Term Disability, Short Term Disability, Life Insurance, AD&D, PTO, CO PFML, Employee Assistance Program, and additional optional insurances. To see a list of all MTech’s great perks visit -

Job Summary

MTech Mechanical is seeking a Preconstruction Engineer to support the development of complex commercial mechanical projects from early concept through design, estimating, proposal, and turnover to construction operations.

Working alongside experienced Preconstruction Managers, engineers, estimators, project managers, and field leaders, you will help evaluate mechanical systems, develop conceptual designs, identify project scope, prepare budgets and estimates, and create solutions that balance performance, constructability, and cost.

This role is designed for an engineer with foundational mechanical systems experience who is ready to expand beyond traditional design. We are looking for goal driven, self-accountable, reliable, technical individuals who are looking to be a part of our MTech community. You will further your development of technical, estimating, presentation, and relationship-building skills while gaining exposure to the full project pursuit lifecycle.

This is a strong development path toward future opportunities as a Preconstruction Manager.

Essential Job Function

• Conceptual Engineering and Technical Analysis
• Develop one-line diagrams, preliminary system selections, zone maps, and distribution-system concepts.
• Perform conceptual heating and cooling load calculations, major equipment sizing, and other technical evaluations.
• Conduct building surveys to document existing systems, operating conditions, and identify site constraints.
• Review construction documents to identify coordination needs, constructability concerns, and potential gaps in scope.
• Research applicable codes, design criteria, equipment options, system requirements, and project-specific technical information.
• Evaluate and compare alternative mechanical solutions to provide best value options for the client.

Estimating and Scope Development

• Establish project scope, assumptions, exclusions, design criteria, and pricing strategies under the guidance of Preconstruction leadership.
• Develop conceptual budgets and assist in setting up, compiling, and reviewing estimates.
• Obtain and evaluate equipment, material, vendor, and subcontractor information needed to support technical and pricing decisions.
• Identify changes in scope, quantities, assumptions, and pricing between construction document iterations.
• Identify and resolve scope gaps before estimates are finalized.
• Prepare proposal content, technical narratives, system descriptions, and supporting documentation for client review.

Pursuit and Client Support

• Participate in client meetings, project interviews, design meetings, and presentations alongside Preconstruction Managers and other MTech leaders.
• Communicate mechanical-system concepts, pricing information, risks, and recommendations clearly to internal and external project partners.
• Develop and maintain relationships with general contractors, building owners, design teams, vendors, and subcontractors.

Collaboration and Project Continuity

• Coordinate internally with our support and construction groups to throughout project development.
• Document project scope, estimate assumptions, design decisions, pricing changes, risks, and outstanding information.
• Assist with the transfer of awarded projects to project-management and field teams by communicating design intent, pricing assumptions, procurement considerations, and identified risks.
• Contribute to team-based quality, process-improvement, and knowledge-sharing efforts.
• Regular and predictable in office attendance is expected in order to meet the requirements of this position
• Other duties as assigned

Qualifications

• Bachelor’s degree in Mechanical Engineering, Architectural Engineering, or a closely related discipline.
• At least three years of relevant experience working with commercial HVAC, plumbing, piping, controls, industrial systems, mechanical design, estimating, or construction.
• Strong foundational knowledge of mechanical equipment, system applications, and commercial building systems.
• Experience developing and reviewing…