Project Manager - Marine Construction

About the role

At Brennan, our people are our top priority. We support complex construction projects, solve difficult problems, and help shape the future of marine infrastructure and environmental services. We are growing our presence in the St. Louis market and are looking for Project Managers who want more than just another PM role. This is an opportunity for someone who enjoys complex work, wants ownership and visibility, and values being part of a team where they are supported instead of left on an island. As a family-owned, relationship-driven company, we take pride in open communication, collaboration, and building a culture where people are trusted and empowered to grow. Join our team and help us continue building Brennan’s presence in St. Louis while creating a rewarding career with people who care deeply about their work and each other.

Responsibilities

• Lead full lifecycle management of marine and heavy civil infrastructure projects executed on or overwater
• Develop and manage detailed project work plans, cost structures, baseline schedules, and recovery schedules
• Oversee deep foundation operations including pile driving (steel, concrete, timber), drilled shafts, cofferdams, and sheet piling systems
• Manage marine logistics including barges, cranes, floating equipment, specialty access systems, and sequencing of work over navigable waterways
• Direct coordination between field leadership, engineering teams, subcontractors, and owners
• Maintain strict financial control including forecasting, cost tracking, productivity analysis, change management, and monthly owner billing
• Prepare and negotiate change orders and contract modifications in accordance with public infrastructure contract requirements
• Review and approve submittals, shop drawings, lift plans, and engineered marine work plans
• Support pursuit efforts including bid reviews, quantity takeoffs, pricing strategy, and risk evaluation
• Interface with public agencies including DOTs, USACE, rail authorities, port authorities, and municipal owners
• Travel to active marine construction job sites up to 75% of the time as required

Qualifications

• Bachelor’s degree in Civil Engineering, Construction Management, or related technical field
• Minimum 5+ years of project management experience in marine or heavy civil infrastructure (not commercial building construction)
• Demonstrated leadership experience managing projects involving:
  • Bridge substructures and superstructures
  • Dam rehabilitation
  • Dock and barge terminal construction
  • Railroad infrastructure and rail bridge work
  • Deep foundation systems and pile-supported structures
• Strong working knowledge of marine construction methods including work from floating platforms and temporary work in water
• Experience managing public infrastructure contracts with complex specifications and regulatory requirements
• Advanced understanding of scheduling (Primavera P6 or MS Project), cost control, forecasting, and contract management
• Proven ability to lead field teams in high-risk, technically demanding marine environments
• Strong communication skills with the confidence to interface with owners, engineers, inspectors, and executive leadership