Scientist I, Bioassay

Terrestrial Bio, Inc.; Woburn (MA); Hybrid; USD 109,000 - 123,000; Full time

Job summary

Terrestrial Bio, Inc. seeks a Scientist I, Bioassay to join our preclinical team in MA. You will develop and optimize cell-based functional assays to support preclinical research and GMP lot release testing, working on proteins, antibodies, peptides, and RNA.

You will perform GLP/GMP-compliant testing, document results, analyze data with appropriate statistics, and contribute to study design and report writing to support IND filings. This role offers growth in a fast-paced biotech environment.

Qualifications

• Recent PhD with postdoc in a relevant area or Master’s degree with 4+ years industry experience.
• Aseptic mammalian cell culture experience is required.
• Strong understanding of experimental controls and data interpretation.
• PhD or Master degree in Molecular and Cell Biology, Biochemistry, or a related life sciences field.
• Experience with functional assays (e.g. ELISA) and analytical methods (e.g., protein quantification) is highly preferred.
• Experience with animal models is preferred.
• Strong organizational skills, attention to detail, and initiative appropriate for a fast-paced environment.
• Strong verbal and communication skills with a commitment to working collaboratively within an interdisciplinary team.

Responsibilities

• Develop and optimize cell-based functional assays to support preclinical research and GMP lot release testing for targets that may include proteins, antibodies, peptides, and RNA
• Execute routine functional testing to ensure biological integrity of drug product following GLP/GMP standards as needed, adhering to good documentation practices and ensuring compliant lab operations and workflows
• Analyze the data using suitable statistical methods and deliver interpretation for communication of results to the team
• Maintain accurate laboratory records, generate data summaries and compile reports to support regulatory filings
• Contribute collaboratively to study design, protocols, and report writing; independently navigate your own schedule to complete priority tasks and communicate findings to the team.

Skills

Aseptic mammalian cell culture

Experimental design and data interpret

Statistical data interpretation

Good documentation practices

Education

PhD in Molecular & Cell Biology, Biochemistry, or related life sciences

Master’s degree with 4+ years industry experience

Tools

ELISA

Protein quantification

Job description

Scientist I, Bioassay

Terrestrial Bio

Location: Allston, MA and Woburn, MA

About Terrestrial Bio, Inc.

Terrestrial is transforming the delivery of next-generation therapies, starting with GLP-1.

Terrestrial's proprietary Tacterra™ microarray patch (MAP) and applicator platform consists of a patch resembling an adhesive bandage, which is applied with a preloaded applicator and removed after a few minutes. Once applied, each patch delivers bioactive tips into the skin, which dissolve quickly into the body, rapidly releasing their therapeutic payload. Designed for self-administration, the temperature-stable Tacterra™ platform enables precise, controlled delivery of a wide range of therapeutics without medical sharps or refrigeration.

Terrestrial has generated strong clinical and in-vivo proof of concept across multiple molecules. For more information, www.terrestrialbio.com.

Why this role

We are seeking a talented, collaborative, and highly motivated individual to join our core team of preclinical scientists and engineers contributing to the advancement of novel drug delivery modalities. This role is designed for a versatile researcher. You will play a key role in bioassay development to support preclinical research and GMP lot release testing, including the execution of functional assays to ensure biological performance of drug product. This is a unique opportunity to be part of an emerging company bringing innovative microneedle therapeutic delivery technology to the global market.

What you'll do

• Develop and optimize cell-based functional assays to support preclinical research and GMP lot release testing for targets that may include proteins, antibodies, peptides, and RNA
• Execute routine functional testing to ensure biological integrity of drug product following GLP/GMP standards as needed, adhering to good documentation practices and ensuring compliant lab operations and workflows
• Analyze the data using suitable statistical methods and deliver interpretation for communication of results to the team
• Maintain accurate laboratory records, generate data summaries and compile reports to support regulatory filings
• Contribute collaboratively to study design, protocols, and report writing; independently navigate your own schedule to complete priority tasks and communicate findings to the team.

How you'll impact

• Contribute to translational studies that directly advance IND (Investigational New Drug) filings
• Challenging, technically fulfilling role at the intersection of engineering and biological efficacy
• This position offers tangible career growth opportunities

Who you are

• Recent PhD with post doc in a relevant area or Master’s degree with 4+ years relevant industry experience
• Significant experience with aseptic mammalian cell culture is required
• Solid understanding of experimental controls and data interpretation is required
• PhD or Master degree in Molecular and Cell Biology, Biochemistry, or a related life sciences field
• Experience with functional assays (e.g. ELISA) and analytical methods (e.g, protein quantification) is highly preferred
• Experience with animal models is preferred
• Strong organizational skills, attention to detail, and initiative appropriate for a fast-paced environment
• Strong verbal and communication skills with a commitment to working collaboratively within an interdisciplinary team

Compensation:

The anticipated base salary range for this position is $109,000 – $123,000. Actual compensation will be determined based on a variety of factors including experience, qualifications, and internal equity.

Onsite expectations:

The majority of our roles at Terrestrial are either onsite or hybrid, which allows us to meet both business and team needs. Candidates applying must be willing to be onsite 4-5 days per week.

Location:

Woburn, MA until relocation to a new, custom facility in Allston MA planned for Q4 of 2026.

At Terrestrial, we’re bringing together exceptional talent to drive our product development forward. We value collaboration, curiosity, and a dynamic work environment. We aim to recruit, employ, train, compensate and promote regardless of race, religion, color, national origin, sex, gender identity or expression, sexual orientation, disability, age, or veteran status.