J.F. Brennan Company is seeking a proven Marine Construction Project Manager to lead technically complex infrastructure projects performed on or overwater. This is not a commercial construction role. We are looking for an experienced professional with a strong background in deep foundations, bridge construction, barge terminals, dock structures, dam construction, and railroad infrastructure. Our projects demand precision planning, marine logistics coordination, and hands-on leadership in challenging environments. The ideal candidate has successfully managed work from floating equipment, understands heavy civil risk management, and thrives in technically demanding marine settings. Responsibilities Lead full lifecycle management of marine and he