Research Associate, Preclinical, In Vivo

RA, Preclinical, In Vivo Terrestrial Bio (formerly Vaxess) | Woburn, MA → Allston, MA (Q4 Relocation) The Mission Most advanced therapeutics still require cold-chain logistics and clinical administration using needles. We are developing a needle-free Microneedle-Array Patch (MAP) delivery platform that enables up to two weeks of sustained delivery with only five minutes of wear-time. We are looking for a versatile researcher to work at the translational interface of benchtop assay development and in vivo validation.

The Role:

Impact & Responsibilities You will be a core contributor to our preclinical team, characterizing MAP performance through in vivo and ex vivo assays. This will involve:
• Preclinical Study Execution:
Assist in PK and safety studies using rodent and swine models, including animal model development and IND-enabling safety/efficacy studies.
• Device & Tissue Characterization:
Execute ex vivo skin deployment assays to ensure structural integrity and delivery efficiency.
• Logistics & Processing:
Manage the end-to-end flow of test articles, vivarium logistics, tissue harvest, and downstream sample processing.
• Data-Driven Insights:
Analyze performance via visual inspection, skin penetration analysis, and dose delivery metrics to steer platform development.
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Cross-Functional Collaboration:

Communicate logistical needs and present technical findings in interdisciplinary team meetings to help steer the platform.
• Regulatory Support:
Maintain high-standard ELN entries and contribute to protocols and report writing for regulatory filings. Qualifications
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Education:

BS in Bioengineering, Biology, Pharmaceutical Sciences, Animal Science, Veterinary Technology or related field with 0-2+ years of experience
• Preclinical

Skills:

In vivo experience is required.

Experience with pharmacokinetic (PK) endpoints is a plus.
• Technical Core:
Proficiency in animal handling is required. Large animal experience is a plus.
• Specialized

Experience:

We highly value candidates with hands-on experience in ex vivo tissue handling and in vivo study management.
• Communication:
Excellent verbal and written skills with a commitment to working collaboratively within an interdisciplinary team.
• Operational Excellence:
Strong organizational skills and the ability to travel between local vivarium sites in the Greater Boston area as required. Why Join Us Now?
• Translational Stakes:
You aren't just doing "early research"; you are supporting IND-enabling studies for a platform that changes how drugs reach patients.
• Growth Environment:
We will be moving into a brand-new, bespoke facility in Allston to support our scaling.
• Interdisciplinary Exposure:
You will work at the direct intersection of medical device mechanics and biological efficacy. Compensation & Logistics
• Salary: $62,000 - $70,000
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Location:

Woburn, MA (through Summer 2026), relocating to our brand-new facility in Allston, MA in Q4.
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How to Apply:

Please submit your CV/resume to  At Terrestrial, we value collaboration, curiosity, and a dynamic work environment. Terrestrial Bio, Inc, 11 Cummings Park Drive, Woburn, MA 01801