Open Roles

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.
We are looking for passionate and driven scientists and individuals across diverse scientific disciplines, including biology, chemistry, and cheminformatics. In addition, we have a clinical team that’s always looking for good folks. If that’s what you do, we’d love to hear from you, even if there’s not an opening that looks like a perfect fit! Have questions or need a little encouragement? Please send us a note at [email protected].

PLEASE NOTE: All open positions for Theseus Pharmaceuticals will be listed on this website, and any communication from Theseus 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. If you receive a suspicious message from someone purporting to be from Theseus Pharmaceuticals or if you believe you are a victim of fraud, please visit the FTC website to file a report.

TO ALL AGENCIES: Please, no phone calls or emails to any employee of Theseus about our openings. All resumes submitted by search firms/employment agencies to any employee at Theseus via email, the internet or in any form and/or method will be deemed the sole property of Theseus unless such search firms/employment agencies were engaged by Theseus for this position and a valid agreement with Theseus is in place. In the event a candidate who was submitted outside of the Theseus agency engagement process is hired, no fee or payment of any kind will be paid.

Open Roles

Our Benefits
We support our exceptional team beyond the work we perform. Theseus provides a wide range of thoughtful and complete benefits, leave programs and time off, and so much more!
Health Benefits
Health Savings Account
Life & Disability Insurance
401K Plan & Stock Options
Unlimited Time Off
Dependent Care Account
Pet Insurance
Tuition Reimbursement
Parking or Commuter Costs
Wellness Programs
Flexible Work Arrangements
Employee Assistance Programs