Senior Process Mechanical Engineer - Water & Wastewater Treatment

Senior Process Mechanical Engineer - Water & Wastewater Treatment A leading engineering and technology company in the water sector that is seeking an experienced Senior Process Mechanical Engineer to join its growing team. This is a senior-level engineering position focused on the design and delivery of complex wastewater treatment, water reuse, and advanced water reclamation projects . The successful candidate will play a key role in developing process designs from concept through detailed engineering, working closely with multidisciplinary teams and supporting major infrastructure and industrial water projects. Key Responsibilities Lead process design activities for municipal and industrial water/wastewater treatment facilities. Develop process simulations, hydraulic calculations, mass balances, PFDs, P&IDs, and design reports. Design and optimize biological treatment systems including MBR, MBBR, SBR, IFAS, BNR, MLE, Oxidation Ditch, and Bardenpho processes. Integrate advanced treatment technologies including MF/UF, NF, RO, and AOP systems into complete treatment trains. Lead equipment sizing and selection for pumps, blowers, membranes, reactors, aeration systems, and chemical dosing equipment. Support projects through all phases from conceptual design to construction and commissioning. Provide technical leadership, mentor junior engineers, and collaborate with civil, mechanical, electrical, structural, and controls teams. Assist with proposal development, technical presentations, and business development initiatives. Requirements 10+ years of experience in water, wastewater, or water reuse process engineering. Strong expertise in biological treatment and advanced membrane technologies. Experience with process modelling software such as BioWin or similar platforms. Demonstrated ability to deliver projects from concept through detailed design and construction support. Bachelor's degree in Chemical, Environmental, Mechanical, or Civil Engineering. Professional Engineering (PE) licensure preferred. Why Consider This Opportunity? Opportunity to work on high-profile water reuse and advanced treatment projects. Significant technical ownership and leadership responsibilities. Collaborative engineering environment with exposure to cutting-edge treatment technologies. Flexible working arrangements and opportunities for professional growth. #J-18808-Ljbffr