Colossal is a breakthrough bioscience and genetic engineering company that builds radical new technologies to advance the field of genomics. Colossal creates disruptive technologies for extinct species restoration, critically endangered species protection and the repopulation of critical ecosystems that support the continuation of life on Earth.

Are you interested in joining us for an internship next year? That's amazing! We have not yet finalized recruitment for the Summer of 2026, but you can express interest here to join our Colossal Summer Internship Talent Community! For 2026, we expect to have internships for a variety of roles including:

• Next-Gen Sequencing
• Animal Care
• Bioengineering
• Cellular/Molecular Biology/Genetics

Please note: We host a very small number of interns each year. We will respond to your application if/when an appropriate internship opportunity becomes available. Updates on your application may not come through until December at the earliest.

Applications for a summer 2026 internship with Colossal will close on Friday, March 6th.

**We do not have any internship or co-op opportunities available for the fall or winter. This is for the summer of 2026 only**

• Internships that become available for Summer 2026 will either be selected from this posting or a separate individual posting on our Careers website posted sometime between December 2025-March 2026.
• We do not typically begin interviewing for internships until December or January.
• Interns would ideally start with us sometime in June and finish sometime in August.
• Internships with Colossal will be based on-site in Dallas, TX. We do not provide any housing.
• To qualify, you must be a current university student in the United States that has completed at least 1 year of undergraduate studies.
• Students that have already graduated prior to 2026 or will be graduating in 2026 are not eligible for internships but may apply to full-time job postings.
• US work authorization is required without the need for company assistance in securing a visa.

As internship opportunities open up, we may reach out to you. Otherwise the only communication you will receive is confirmation that we received your application. Once all internship decisions have been made, a final update will go out.

In the meantime, keep an eye on our Careers Website for potential specific Internship postings.

Check out our page on de-extinction here: https://colossal.com/de-extinction/

Learn about the species we are de-extincting here: https://colossal.com/species/

Learn about the exciting work happening in our labs here: https://colossal.com/labs/

Learn about our amazing conservation work here: https://colossal.com/conservation/

For information on our non-profit conservation foundation, check out their site: https://colossalfoundation.org/

Thank you for your interest in Colossal!

What Colossal Offers Full-Time Employees:

• Medical, dental, and vision coverage
• Excellent paid time off and company holidays so you can rest and recharge
• Flexible spending accounts (FSA)
• Company matched 401k retirement plan
• Paid parental leave at 100% salary for 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 4 years in a row across multiple categories in 2023, 2024, 2025, and 2026:

• #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, and 2026.

Built In 2026 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.

Newsweek's Most Loved Workplaces 2024 Award List - Excited to be amongst the winners of Newsweek's 2024 Most Loved Workplaces!