Provide technical leadership for the design and construction of chemical manufacturing facilities, including greenfield and brownfield projects, process skids, reaction systems, mixing systems, filtration systems, transfer systems, storage tanks, utility systems, and supporting infrastructure. Develop and review process engineering deliverables, including process flow diagrams, P&IDs, mass balances, energy balances, heat transfer calculations, fluid flow calculations, equipment sizing, utility demand calculations, process control narratives, and operating envelopes.