Senior Process Engineer – Process & Specialty

Overview of Role

Zwitter Co is seeking an experienced Senior Process Engineer to join our team. This role will be a key contributor in ensuring the successful, high-impact application of Zwitter Co’s cutting-edge membranes across various industries with an emphasis on water and wastewater applications.

The candidate will play both an internal- and external-facing role and serve as a subject matter expert on the implementation and integration of Zwitter Co membranes into larger industrial process and wastewater operations, with a main focus on food contact membrane processes, especially in the dairy industry. The ideal candidate will have deep experience in crossflow (tangential flow) filtration system design, including spiral wound reverse osmosis and ultrafiltration;

membrane process integration within larger food and beverage manufacturing plants, with a main focus around dairy processes. This position will provide site support by visiting customers and ensuring they are getting the most out of the Zwitter Co products.

Key to this role is the ability to work across functions in a fast-paced dynamic environment. Successful candidates will be highly motivated and able to self-manage work effort allocated to different priorities without losing track of less urgent projects. Candidates should be passionate about membrane technology and eager to work on the cutting edge, supporting customers in gaining value from our products.

Zwitter Co has developed a breakthrough in materials science - a new class of zwitterionic membranes with unprecedented fouling resistance. Our membrane solutions perform beyond the limits of traditional filtration, making it practical to treat complex wastewater, purify water for reuse, and maximize efficiency in food processing applications.

Zwitter Co serves customers in more than 20 countries across food and beverage, agricultural, and industrial sectors. We are rapidly investing in our technology, equipment, and global services platform to help our industrial customers achieve their most ambitious sustainability and growth targets.

We are grateful to have been named as Fast Company’s Top Innovators of 2024 and featured on the 2025 & 2026 Global Cleantech 100.

• Serve as an internal and customer-facing subject matter expert for Zwitter Co products, with emphasis on the sanitary (Evolution) product lines
• Partner with the sales team in the customer discovery process and evaluate commercial opportunities for technical feasibility and risk
• Provide post-sales technical support for partners and end users to ensure customer success. This includes customer site visits to check on product performance, process troubleshooting, and data collection
• Monitor and collect customer installation data to optimize performance and develop case study reports
• Develop process and system design guidelines specific for sanitary applications, working closely with the internal engineering team and external integration/fabrication partners (specifically for the dairy industry) for spiral-wound membrane products
• Provide leadership in the development of our internal knowledgebase through assimilation of existing research and planning internal studies to gather product performance data
• Provide test plan leadership for pilot, demonstration and feasibility studies, collaborating with the Field engineering group and the Sales team
• Lead in-person and online technical trainings for OEM engineers and/or end users
• Evaluate, mitigate, and communicate technical risks associated with new applications, projects, and/or partners
• Author technical guidance documents and give oral/written presentations to customers, industry partners, and Zwitter Co business leaders as needed
• Provide mentorship to less experienced members of the process engineering team

• A university degree in an engineering discipline is required unless the candidate has extensive previous work experience in a comparable role. A degree in chemical or environmental engineering is preferred, while a degree in mechanical or industrial engineering is also suitable.
• 6+ years of experience supporting sanitary…