The Scientist II, Developmental Biologist serves as a leading scientist within the Exogenous Development (ExoDev) team providing comprehensive knowledge of embryonic and fetal development, placental biology, and uterine physiology to support the development of artificial womb technology. This position reports to the Vice President, Artificial Womb Technology. Based on demonstrated candidate aptitude, leadership abilities, and Team progress, the employee may be transitioned to a management role leading fetal development and neonatal support efforts.

**This position will be based out of Dallas, Texas. Relocation assistance is available. Travel to scientific conferences and to engage with partner institutions will be required, but overall travel is expected to be 20% or less per quarter.**

Duties and Responsibilities:

Researches, develops, and implements experimental programs to support development of artificial womb technology including embryonic development, embryonic maturation, implantation, placental development, replication and characterization of critical maternal and uterine signals, nutritional requirements to support maternal and fetal metabolism.
Provides scientific leadership to the ExoDev team
Conducts reviews of experimental design, experimental planning, experimental endpoints, and proposed analysis and quantification methods
Maintains knowledge of relevant research in the field, including attending key conferences and sharing critical manuscripts with the ExoDev team
Drafts experimental protocols, experimental reports, IACUC protocols, and requested presentation materials for internal and external audiences.
Identify and collaborate with external institutions to advance team objectives. Assist in managing contracts with external partners.

Required Skills and Abilities:

Must have prior research experience regarding maternal and fetal contributions to pregnancy and gestation including:
- Maternal/fetal tissue and cell anatomy, morphology, biochemistry, including changes during gestation
- Maternal and fetal protein expression and secretion
- Chemotactic factors
- Maternal and fetal hormonal modulation based on anatomic location and temporal variance
- Nutrients/supplementation required to support fetal development and pregnancy
- Characterization of fetal organogenesis, organ development, and organ function.
- Postpartum small and large animal behavioral and neural assessments
- Extensive expertise in placental biology and development in multiple species
- Uterine physiology and changes during pregnancy
Experience with Animal Models and Research
Skilled in histology, pathophysiology, imaging, and molecular biology
Data Analysis & Software expertise
Tissue & Cell Harvesting, Isolation, and Culturing
Strong written and oral communication skills, both for scientific communications (manuscripts, conference presentations, etc.) and for lay audiences (investors, tour attendees, general public)
Practiced critical thinking, analytical, and problem solving skills.

Education and Experience:

A doctoral degree, Ph.D. D.V.M. or M.D., with a research focus on fetal and maternal medicine, Reproduction Physiology, Embryonic, Fetal, and/or Neonatal Physiology, Uterine and Fetal Biochemistry, or Embryonic Cell and Molecular Biology is required.
At least 3 years of post-graduate research experience related to pregnancy, fetal development, or placental biology strongly preferred.
3+ years of experience in conducting research with large and small animal models
Candidates should have multiple peer-reviewed publications related to pregnancy, fetal development, and/or placental biology and development or other publicly available evidence demonstrating a track-record of successfully completing challenging research projects in these fields.

What Colossal Offers You:

Medical, dental, and vision coverage
Unlimited PTO and company holidays so you can rest and recharge
Flexible spending accounts (FSA)
Company matched 401k retirement plan
Paid parental leave up to 12 weeks
Education reimbursement
An opportunity to help us return the Earth to a healthier state

The team at Colossal is committed, colorful, passionate, intelligent, collaborative, creative, experienced, scientific and world-class. That sounds like a lot to fit into one building. That's why we are spread out in several locations that include laboratories, test facilities, academic institutions, libraries and offices.

Through it all, however, we maintain a culture of positivity, hope, happiness and belief that we're doing something big. Something Colossal.

Colossal is proud to be an equal employment opportunity workplace. We welcome people from all backgrounds as well as celebrate and support diversity. We are committed to providing an inclusive environment of mutual respect that is free from discrimination and harassment so everyone can thrive.

EEO is the Law

Search Firm Representatives: Colossal does not accept unsolicited assistance from search firms. No fees will be paid for a hired candidate where no pre-existing agreement is in place. We handle most recruitment in-house.

Colossal is proud to be named a Best Place to Work by BuiltIn for 3 years in a row across multiple categories in 2023, 2024, and 2025:

#1 on the 50 Best Startups to Work For in Dallas in 2023!
100 Best Midsize Places to Work in Dallas in 2024 & 2025
100 Best Places to Work in Dallas, TX (All Size Employers) in 2024 & 2025
100 Best Midsize Places to Work in Boston in 2024 & 2025

Built In 2025 Award Lists

Great Place to Work Certification Page

Most Loved Workplace Certification Page - Proud to be certified as a most loved workplace including: most loved CEO, most loved workplaces for LGBTQ+, most loved workplaces for women, and most loved workplaces for young professionals.

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Scientist II, Developmental Biologist