Cellsense - Mechanical Engineer at 43North – New York, New York

About Cellsense:
Cellsense manufactures sustainable products for the fashion, jewelry, and beauty industries utilizing our proprietary material made from Algae and Cellulose. Cellsense aims to replace plastics and resins, and in doing so eliminate major sources of microplastics and heavy metal pollution. With our material we can achieve a wide range of colors, clarities, forms, and even unique properties such as bio-fluorescence. Our novel manufacturing systems enable us to produce complex beaded textiles at scale, replacing overseas manual labor with highly automated domestic production. Currently, we are focused on scaling up our process while engaging in paid pilots with industry partners. You will join us at an exciting stage of our growth.
The Role:
We're looking for a hands-on engineer to own production at Cellsense as we scale. You'll be responsible for taking our manufacturing systems from prototype to pilot plant, developing and implementing the necessary tools and processes to meet growing demand from our brand partners. As a key member of our small team, you'll collaborate closely with our founder and have a meaningful impact on the development and deployment of Cellsense's next-generation production capabilities.
Responsibilities:

• Design and iterate on hardware necessary for Cellsense to scale production
• Build and optimize automated material deposition systems
• Customize molds for diverse customer use casesSource components and work with suppliers to manage parts and lead times
• Work across disciplines to help develop exciting new products
• Own and develop engineering at Cellsense

What We're Looking For:

• Bachelor's degree in Mechanical Engineering, Manufacturing Engineering, or a related field
• 3+ years of engineering experience, including taking projects from concept to completion
• Hands-on experience designing, building, and troubleshooting physical systems
• Proficiency in 3D CAD software of choice
• Familiarity with prototyping methods such as machining, 3D printing, and laser cutting
• Experience with manufacturing processes or automation is a strong plus
• Strong organizational skills and attention to detail
• Self-motivated problem-solver who thrives in a startup environment

What We Offer:

• Compensation range: $80,000 - $110,000 per year + equity
• Health insurance
• Direct ownership of production systems and processes
• Opportunity to work on meaningful environmental impact as part of a tightly knit team
• Job Type: Full-time, in-person
• Location: Brooklyn, New York or Buffalo, New York
• Travel: 10-15% (domestic)
• Ideal Start Date: February 2026

Apply:

• If you’re a builder who loves turning prototypes into production-ready systems, we’d love to hear from you!

CompensationThe base pay range for this role is $80,000 – $110,000 per year.