Job Openings

We are motivated and inspired to bring hope to people living with cancer.

With a shared goal and the expertise to bring our vision to life, our team takes pride in striving to fulfill the important role we have in the fight against cancer. If you’re as excited about innovative science as we are, we invite you to come grow with us.
Theseus is passionate about creating an inclusive workplace that promotes and values diversity. As we expand, we seek the most talented individuals with diverse backgrounds, cultures, perspectives, and experiences to join our team.
Please Note: All open positions for Theseus Pharmaceuticals will be listed on this website, and any communication from Theseus Pharmaceuticals about open positions will come from a representative with a Theseus email address ( or Further, we will never ask you to share private information (bank accounts, social security #) via email.

Also, please note that Theseus is NOT hiring for nurse practitioners or physician assistants. If you receive a suspicious message from someone purporting to be from Theseus Pharmaceuticals or you believe you are a victim of fraud, please visit the FTC website to file a report.

Open Positions

Director/Senior Director, Program Management
Principal Scientist/Associate Director, Medicinal Chemistry
Principal Scientist, Discovery Biology
Senior Director, Discovery Biology
Senior Manager, Financial Reporting
Vice President, Quality Assurance