Product Development Engineer II

Fluorityx•Watertown, MA

36d•$100,000 - $115,000•Hybrid

About The Position

We’re looking for a Product Development Engineer II to help turn our PFAS sensor system into a commercial minimum viable product (MVP). Day-to-day work mostly involves coating, thin-layer deposition, and analysis on our test-strip platform. You’ll build, test, and improve the system across all areas during field testing and customer validation, working closely with the CEO and our current product development engineer in our Watertown lab.

Requirements

Bachelor’s or Master’s degree in chemical engineering, mechanical engineering, or a related field (a chemistry background also works; engineering preferred)
Ca. 3-5 years of industry experience, with room in both directions for the right person
Hands-on experience with prototype development and iterative testing
Experience with coating or thin-film deposition techniques and material characterization

Nice To Haves

Experience working with vendors or contract manufacturers/CROs
3D printing (e.g. printing casings and fixtures)
Analytical instrumentation (FTIR, GC-MS, UV-Vis, etc.)
Exposure to sensor development from early stage to product
Prior startup experience

Responsibilities

Run and own the core workflows (coating, thin-layer deposition, analysis), plan and execute the day-to-day optimization experiments, and deliver improvements in system performance and reproducibility.
Build and test MVP units with the team, run structured test series against our commercial specifications, close the remaining gaps, and support field tests and customer validation runs.
Take on tasks across all three areas (disposables, hardware & software) based on team priorities, own agreed subsystems end to end, and deliver design improvements that measurably improve scalability and manufacturability.
Document your work to the team standard, help improve our experimental and documentation practices, support interviews and onboarding as the team grows, and play an active role in shaping our culture.