Engineer II/III Formulation

Woburn, Moving to Allston in Q4 2026 · Onsite

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,

visit www.terrestrialbio.com.

Why this role

You'll own the handoff that makes or breaks a platform like ours: taking formulations from R&D and turning them into repeatable, compliant manufacturing processes. Reporting to the Director of Process Development, you'll act as the connective tissue between Research, Manufacturing, Quality, and Automation — with real influence over how our microarray patch formulations get built, optimized, and scaled. You'll also have hands-on oversight of formulation campaigns and the technicians running them, giving you both technical depth and early leadership experience.

What you'll do

Lead cGMP formulation operations for Microarray Patch manufacturing, ensuring adherence to batch records, SOPs, and regulatory requirements

Provide hands-on guidance to junior staff and technicians during manufacturing campaigns; train, mentor, and evaluate personnel

Oversee day-to-day manufacturing floor activities — safety, compliance, scheduling, and troubleshooting — alongside Manufacturing and Facilities

Drive process development and optimization studies for microarray patch formulations, including excipient optimization

Act as the liaison between Research and Manufacturing to scale formulation processes from R&D to production

Identify and implement new technologies and assays to support continuous improvement

Lead root cause analyses and process development investigations

Author, edit, and review batch records, SOPs, and work instructions

Communicate progress, issues, and results to key stakeholders

Who you are

Engineer II - BS or MS in Biological Sciences, Chemistry, Biomedical Engineering, Chemical Engineering, or related discipline, with 3+ years of relevant experience (title adjusted commensurate with qualifications)

Engineer III - BS or MS in Biological Sciences, Chemistry, Biomedical Engineering, Chemical Engineering, or related, with 5+ years of relevant experience (title adjusted to commensurate with qualifications

Strong hands-on formulation process development experience; able to design and execute studies and analyze results independently

Prior supervisory experience in a GxP environment preferred

Strong grasp of Good Documentation Practices, including authoring and reviewing batch records, SOPs, and work instructions

Excellent verbal and written communication, time management, and project management skills

Ability to learn quickly, solve challenging technical problems creatively, and work well across diverse, multidisciplinary teams

Strong attention to detail and root-cause problem-solving skills.

Compensation: The anticipated base salary range for the Engineer II position is $72,000 - $91,000. The compensation for the Engineer III position is $102,000 - $114,000. 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 5 days per week.

Location: Woburn, MA and our 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.