Microbiological Assay Scientist, Mining

Fieldstone Bio is an early-stage synthetic biology company focused on environmental monitoring. Our technology, which originated at MIT, combines microbiology, synthetic biology, artificial intelligence, and advanced imagery to solve key challenges in mining, pollution surveillance, and national security.

Position Summary

Fieldstone Bio is looking for a highly motivated Scientist to join our Reno, Nevada, Assay Team, where they will work to routinely run established assays for the identification of different metals in mining samples. The successful candidate will independently contribute to sample inventory management and spearhead the execution of established SOP workflows. This is a hands‑on, lab‑based role that will play a critical role in processing samples and delivering data to customers. This role is an opportunity to independently lead the execution of mining‑sample workflow processing. This position will lead the development of Fieldstone's presence in Reno, Nevada by supporting facility expansions and assay method optimization. The person in this role will report to the Head of Microbiology.

Key Responsibilities

• Receipt and organization of mining samples
• Registration of materials for assay execution
• Execute cell‑based assays to screen for the presence of different metals in mining samples
• Actively provide feedback on processes and offer solutions for methodology improvements
• Preparation of assay working materials needed for each week
• Work collaboratively with the AI Data Team to register and collect data for robust documentation practices
• Ensure timely delivery of goals for set milestones
• Document processes, results, and entity registration in an Electronic Lab Notebook (ELN) system

Qualifications

• PhD (or equivalent) in Microbiology, Bioengineering, Molecular Biology, or a related field
• 1+ years’ of experience with assay execution (prior industry experience is strongly preferred)
• Ability to work independently and manage multiple tasks simultaneously
• Strong analytical and problem‑solving skills
• Excellent verbal and written communication
• Thrives in a fast‑paced lab environment
• Thrives working independently
• Some travel to the Woburn, MA office is expected

Fieldstone Bio is committed to building a diverse and inclusive environment. All applicants will be considered without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status or disability.