Mechanical Designer – Containerized Water Treatment Systems

Overview of Role

Zwitter Co is seeking an experienced Mechanical Designer to lead detailed design and layout development for standardized skidded and containerized water treatment systems (50–100 gpm range). This role is critical to transforming our container systems from project-based designs into a scalable, repeatable product platform.

With support/guidance from the engineering team, the Designer will own 3D mechanical layouts, P&t and maintenance, container GA packages, fabrication drawing coordination, and standard design library development. This position directly supports schedule compression, platform standardization, and scalable growth.

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.

• Develop detailed 3D layouts (Solid Works preferred) for skidded and containerized treatment systems
• Route piping systems and optimize space utilization within 40'–53' containers
• Create and maintain GA drawings
• Develop spool drawings and fabrication-level documentation

• Create and maintain process P&IDs
• Ensure alignment between P&IDs and 3D layouts
• Maintain instrument lists, valve schedules, and line lists
• Support design reviews and change control process

• Develop standardized 50 gpm and 100 gpm skidded and container platforms
• Create reusable piping and equipment layout blocks
• Maintain design libraries and drawing templates
• Support productization efforts to reduce engineering iteration

• Issue IFC-quality drawing packages
• Review and redline fabricator detail drawings
• Resolve layout conflicts proactively
• Support parallel procurement and fabrication strategies

• Identify layout efficiencies to reduce build time
• Support early-release long-lead procurement strategy
• Contribute to engineering playbook development
• Improve documentation quality and revision discipline

• Bachelor's Degree in an Engineering or Science discipline
• 5+ years mechanical design experience in industrial systems
• Technical proficiency in Solid Works (required)
  • AutoCAD Plant 3D modeling
  • 2D drawing development
  • BOM development
  • Revision control discipline
• Experience with skid-mounted or containerized equipment
• Strong piping layout experience
• Understanding of fabrication methods (welded SS, carbon steel, FRP)
• Ability to read and develop P&IDs

• Water treatment or process systems background (RO, UF, filtration, pumps)
• Experience working with contract fabricators
• Knowledge of industrial valves, instrumentation, and pump selection
• Experience with change management / ECO process
• Exposure to electrical layout coordination

This position can be located in Woburn, MA on a hybrid basis, but can also be remote, reporting directly to the Vice President of Engineering Operations.

This role requires only occasional travel to company headquarters in Woburn, MA for training and team building.

Salary will be based on experience and includes equity and benefits.