Project Manager (On-Site)

WHAT WE NEED: Project Manager (On-Site) Sigma Engineers & Constructors is seeking an experienced Project Manager to support ongoing capital and maintenance projects at one of our client sites in Geismar, La.

This position will be embedded at the client site and will lead the planning and execution of refinery-based projects, ensuring all work is completed safely, efficiently, and in alignment with operational requirements.

Responsibilities: Manage and execute capital, maintenance, and turnaround-related projects within a refinery/plant environment Develop project scopes, cost estimates, schedules, and execution plans aligned with refinery objectives Coordinate closely with plant operations to plan work around unit outages, shutdowns, and production constraints Ensure compliance with all refinery safety protocols, work permitting processes (LOTO, hot work, confined space, etc.), and site-specific requirements Manage contractors, vendors, and subcontractors performing work onsite Identify project risks (operational, safety, schedule, cost) and implement mitigation strategies Oversee field execution activities, including site walks, constructability reviews, and issue resolution in real time Review and ensure quality of engineering deliverables, drawings, and installation packages Coordinate with procurement and construction teams to ensure timely delivery of materials and resources Track and manage scope changes, ensuring proper documentation Support refinery reliability and continuous improvement initiatives WHO WE NEED: Bachelors degree in Engineering, Construction Management, or related field 5-10+ years of project management experience in refining, petrochemical, or industrial plant environments Proven experience working onsite at refineries or similar heavy industrial facilities Strong understanding of refinery operations, maintenance workflows, and project execution in live plant environments Experience with turnarounds, MOCs, and capital project delivery PMP certification preferred WHO WE ARE: Founded in 1987, Sigma is a professional multi-discipline engineering and design company that serves the petrochemical, fertilizer, and refining industries.

Privately owned and operated by Engineers, Sigma's culture empowers employees and clients to choose relationships and projects that fit our values and ultimately act as an extension of our clients.

Our technical resources provide unmatched quality in multi-discipline engineering and design, in-plant services, supplier quality inspections, field services, automation, procurement and expediting, construction management, and leadership training.

If you would like to see more of what Sigma is about visit our website at www.sigmaec.com.