Process Engineer

Company: The Probst Group LLC
Location: Hartland
Posted on: February 19, 2026

Job Description:

Job Description Job Description Description: The Probst Group is seeking a Process Engineer to support our customers and organization, specializing in industrial wastewater and the development of unique engineered solutions. The Probst Group was officially formed in 2008, but team members have been providing true, customized solutions that are focused on the individual needs of every client for 30 years. We are proud to offer unparalleled experience in industrial wastewater engineering and operations. Expectations for the Process Engineer: Develop and review design calculations, engineering reports, technical memos, and troubleshooting guides, process and control narratives, and process control lab procedures using configurable modules for industrial wastewater treatment systems Conduct feasibility studies, process evaluations, and alternatives analyses for treatment solutions, including both tried-and-true methods and new process treatment technologies Work closely with the Project Management and Project Engineering Teams to review process design, delivering project work on time and within budget Provide process guidance for startup and troubleshooting of full-scale plants and pilot systems, including startup planning, participating in on-site commissioning of plants, and assisting in training of the end user’s operators Provide detailed review, analysis, and interpretation of wastewater operations data, troubleshooting process problems, and identifying the true root cause to correct process issues Stay current with industry trends, regulations, and best practices, recommending the use of new technologies to the Project Development Team Contribute to the overall education and understanding of the Probst team relating to wastewater process technologies Prepare White Papers and present at trade shows, seminars, and upon request to customers or stakeholders to demonstrate Probst’s subject matter expertise Other duties as assigned Requirements: 3 years of previous work experience designing and developing wastewater treatment systems Willing to work out of the Hartland, WI office Master's Degree from an accredited university in Environmental Engineering (or equivalent), PhD Preferred Travel up to 30% of the time Display confident, concise, persuasive written & oral communication Ability to manage and support several projects concurrently, meeting internal and external customer deadlines Ability to read and understand process flow diagrams (PFDs) and piping & instrumentation diagrams (P&IDs) Preferred experiences for the Process Engineer: Preferably proficient in designing/operating biological treatments like Anaerobic Digestion, Enhanced Biological Nutrient Removal (EBPR), Nitrification/Denitrification, Upflow Anaerobic Sludge Blanket (UASB), Membrane Bioreactors (MBRs), Moving Bed Bioreactors (MBBRs) Familiarity with Whole Effluent Toxicity testing and mitigation strategies 5 years’ experience in Industrial Wastewater Management Experience in working with a diverse team or wastewater professionals Familiar with biological modeling programs (e.g. BioWin) Minitab or equivalent experience

Keywords: The Probst Group LLC, Naperville , Process Engineer, Engineering , Hartland, Illinois