An affiliate of Colossal is seeking an experienced Clinical Veterinarian to help build and lead clinical veterinary operations across a rapidly expanding portfolio of animal programs. This role is designed for a veterinarian who thrives in a start-up environment and is excited not only to deliver exceptional clinical care, but also to design, implement, and operationalize the systems, protocols, and facilities that underpin a world-class animal health program. The Clinical Veterinarian will provide comprehensive medical oversight across a portfolio that includes research animal colonies including rodent and small mammal species, and avian species, and will play a foundational role in shaping Colossal's long-term animal health infrastructure.

This position requires strong expertise in laboratory animal medicine, avian clinical care, anesthesia, surgery, emergency response, preventative medicine, and clinical systems development, along with the ability to build scalable veterinary programs in a dynamic and evolving organization. This position reports directly to the Chief Animal Officer and is based in Dallas, TX. Relocation assistance is available.

Key Responsibilities

: Clinical Veterinary Care Case Leadership Provide comprehensive medical care across a diverse portfolio of species, with particular emphasis on avian species, rodent colonies, and small mammal research animals. Perform physical examinations, diagnostic evaluations, and therapeutic interventions appropriate to avian and laboratory animal physiology. Develop case management plans for acute, chronic, and emergent conditions across taxa.

Lead emergency and critical care response as needed, including field-based situations. Maintain accurate and compliant medical records within established record-keeping systems. Develop and oversee preventative medicine programs and whole-population health strategies, including colony health monitoring and sentinel programs.

Provide medical oversight for rodent and small mammal colonies, including health surveillance, colony management, and genetic integrity support in coordination with research teams. Anesthesia Surgical Leadership Design and implement anesthetic protocols for avian species and research animals in both hospital and field environments, including avian-specific inhalant and injectable protocols. Perform and oversee sedation, induction, monitoring, and recovery with attention to the unique physiologic demands of avian patients.

Operate and maintain modern anesthesia delivery and physiologic monitoring systems. Perform surgical procedures appropriate to program needs, including avian soft tissue procedures and research-related interventions. Establish anesthetic safety guidelines, drug formularies, and controlled substance management systems.

Develop contingency protocols for complex or high-risk procedures. Program Protocol Development (Startup Environment) This position requires building clinical systems from the ground up.

Responsibilities

include: Designing and implementing clinical SOPs for: Preventative medicine and colony health programs Quarantine, biosecurity, and barrier housing standards Avian-specific anesthesia and surgical standards Controlled drug management Emergency response Necropsy and pathology workflows Establishing pharmaceutical inventory systems and DEA-compliant tracking protocols. Advising on veterinary hospital and clinical facility design, including IACUC-compliant research animal housing, avian holding areas, and equipment selection. Supporting construction planning and activation of new animal facilities.

Creating scalable veterinary infrastructure to support program growth and species expansion. The Clinical Veterinarian must be comfortable operating in ambiguity and transforming early-stage operations into structured, high-functioning clinical systems.