Demo

St. Louis Region Assistant Superintendent / Assistant Project Manager

Keystone Construction Company
Chesterfield, MO Full Time
POSTED ON 2/21/2026
AVAILABLE BEFORE 6/20/2026

Company Description

Keystone Construction Company, founded in 1987 by Bill Hardie, is a reputable St. Louis-based Commercial Design/Build Contractor. The company specializes in various sectors, including Industrial, Multifamily, Sports/Entertainment and Special Projects design/build projects. A privately owned business, Keystone Construction Company is headquartered in Chesterfield, Missouri. Our mission is to deliver high-quality projects with innovative designs that meet client needs.


Position Description

This is a hybrid Assistant Superintendent and Assistant Project Manager role designed to develop a well-rounded builder. You will support field operations, schedule planning, coordination, and quality control while also assisting with project documentation, procurement support, and communication with the project team. You will be exposed to both field and office responsibilities with a clear path toward becoming either a Project Superintendent or Project Manager depending on your strengths and goals.


    Responsibilities

·        Support the Superintendent in coordinating daily field activities with trade partners and inspectors.

·        Assist the Project Manager with project documentation, subcontracts, change orders, procurement tracking, and communication with subcontractors, owners and designers.

·        Help maintain the project schedule including weekly and daily look-ahead planning.

·        Plan and support site logistics, deliveries, manpower allocation, and work sequencing.

·        Participate in maintaining jobsite safety compliance and reinforcing safety expectations.

·        Review drawings and submittals to understand scope, sequencing, and upcoming work.

·        Assist in identifying and resolving field coordination issues before they impact progress.

·        Attend and support daily huddles, weekly coordination meetings, and toolbox talks.

·        Maintain jobsite organization, cleanliness, and layout control.

·        Prepare and maintain RFIs, submittals, meeting minutes and field reports.

·        Coordinate inspections, testing, and SWPPP activities.

·        Promote a lean approach to planning, workflow, and daily field execution.


    Requirements

·        4 years of experience in construction field operations or project support roles such as assistant superintendent, foreman, field engineer, carpenter lead, or assistant project manager.

·        A willingness to be flexible and work in both field and office capacities depending on project needs and phase of construction.

·        Ability to read and interpret architectural, structural, mechanical, and electrical, plumbing, fire protection and civil drawings.

·        Strong communication and team coordination skills.

·        Proficiency with Microsoft Office. Familiarity with Procore is preferred.

·        Desire to grow into a leadership position in either field or project management.

·        High school diploma required. Trade school, apprenticeship, or bachelor's degree preferred.

·        Ability to actively work on a construction site including walking, climbing, and lifting as needed.


Why Keystone

·        This is a role with clear and accelerated opportunities for growth.

·        All projects are local to the St. Louis region and travel is not expected.

·        Salary range: $85,000 to $105,000 depending on experience.

·        Unique bonus opportunities.

·        Vehicle allowance provided.

·        Medical, dental, and vision coverage effective after 30 days.

·        401(k) plan with company contribution.

·        Paid vacation, sick time, and holidays.


If you want to build meaningful projects in your own community and be home every night, send your resume to: a.doggett@keystone-stl.com






Salary : $85,000 - $105,000

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