hirly

Fieldstone Bio

Senior/Principal Scientist, Synthetic Biology

Woburn, MA

See how you match this job — and similar ones. Free.

Upload your resume and hirly scores it against this role at Fieldstone Bio first, then against similar open jobs, and shows where you fit and why.

PDF or DOCX, up to 12MB. No sign-up to see your matches.

Get past the screening software and onto a recruiter's desk

hirly rewrites your resume for this job — matching the keywords and skills in the posting, moving your most relevant experience to the top, and writing a cover letter to fit. About 30 seconds.

  • Keywords matched to this posting
  • Fit score before you apply
  • Cover letter included

Matched against 2.3M live jobs from 200,000+ employers in 200+ countries.

Tailor my resume for this job →

hirly's read of this role

Seniority
Lead / management
Country
US
Work mode
On-site / unstated
First seen by hirly
28 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

About the company

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 Senior Scientist or Principal Scientist to join our growing Synthetic Biology team, where they will work to design, build, and test microbial biosensors for function in lab-, soil-, water-, and rock-based environments. Target molecules for these biosensors will include metals (for mining applications) and small molecules relevant to Fieldstone’s ongoing and future programs. This role will drive development of biosensors for small molecules with no known regulators, requiring expertise in transcriptomics-based approaches and/or experience in protein engineering and directed evolution. A successful candidate will independently contribute to sensor design, construction, and testing, leveraging synthetic biology expertise to identify the genetic parts and microbial chassis most suited for the program. This is a lab-based role that will work collaboratively with the company’s Microbiology team and AI Data team. This role provides a unique opportunity to impact the development of research and development strategies at an early-stage biotechnology company. This role is on-site and located in Woburn, MA.

Key Responsibilities:

Design, build, and test microbial biosensors for target molecules of interest

Develop biosensors for target molecules with no known regulators using RNA-sequencing and genome-mining approaches

Improve existing biosensors via protein engineering, directed evolution, and screening-based approaches

Collaborate with Microbiology team to identify synthetic biology solutions to support successful biosensor deployment in the target environment

Interface with leadership team to refine select program’s technical strategies

Ensure timely delivery of goals for set milestones

Clearly present scientific findings in cross-functional project team meetings

Document processes, SOPs, and results in an Electronic Lab Notebook (ELN) system

Qualifications:

Ph.D. (or equivalent) in Bioengineering, Chemical Engineering, Microbiology (or related field) and a minimum of 2+ years of industry experience

Demonstrated success in microbial engineering with a proven track record of sensor development, preferably with experience engineering microbes for function outside of a lab environment

Expertise in DNA design and assembly of complex plasmids

Depth of knowledge of current technologies used for identifying and screening novel microbial biosensors, including transcriptomics- and bioinformatics-based approaches

Experience with engineering non-model microbes and engineering microbes for function in complex non-lab environments is a plus

Strong analytical and problem-solving skills and outside-of-the-box thinking

Ability to work independently and manage multiple tasks simultaneously

Excellent verbal and written communication

Versatile and flexible scientist who thrives in a fast-paced and collaborative lab environment

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.

Original posting on Fieldstone Bio's site ↗

Want this one?

Upload your resume and hirly rewrites it for this job and writes the cover letter — in about thirty seconds, before you sign up.

Tailor my resume for this job