At Mersana, we all share a singular passion and vision: To dramatically improve the lives of people with cancer. We know that what each and every one of us does matters and that our success depends on our ability to work together. We believe we are at our best as a company when our employees are thriving and foster a culture that provides opportunities to grow and develop professionally, while also having fun. 

If you share our passion to deliver an evolutionary leap in cancer patient care and our drive to tackle difficult challenges in a dynamic and collaborative environment, then please submit your resume or CV to


Executive Director – Polymer-Drug Conjugate CMC

This position reports to the Head of Manufacturing.  

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Manager/Sr. Manager Biologics CMC

Mersana is seeking a Biologics CMC Associate. This position reports to the Executive Director CMC and Contract Manufacturing.  In addition, the incumbent will assist as needed other components of the CMC department and other groups within Mersana as needed.

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Senior Manager of Program and Alliance Management

Mersana Therapeutics is seeking a Senior Manager of Program and Alliance Management. The role includes program management of an internal development program with the potential to manage alliance activities for one of our strategic partnerships. The role may include supporting certain strategic outsourcing relationships as well. The candidate should have strong leadership, collaboration, organizational and team building skills as well as experience with internal and external communication, negotiation and conflict resolution with a passion for advancing compelling drug candidates.

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Director of Toxicology

Mersana has an exciting new opportunity for a Director of Toxicology. The Director of Toxicology is accountable for timely and effective drug safety support for all programs in preclinical or clinical development. The incumbent is expected to demonstrate competency in interpreting toxicology data, development and implementation of strategic plans for nonclinical development, as well as providing expertise and guidance in Regulatory Toxicology to project/program teams. This individual will be highly analytical, decisive, goal-oriented, and timeline sensitive while maintaining the highest of scientific and ethical standards. The incumbent will adhere to established processes, policies and quality systems for outsourcing, managing and reporting regulatory toxicology programs, studies and other activities in support of Mersana programs and to provide appropriate content and submission-ready documentation for the toxicology components of regulatory submissions.


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Head of Translational Medicine

Mersana is seeking a Head of Translational Medicine. This position reports to the Chief Medical Officer.  The incumbent will lead biomarker activities for the Mersana portfolio of ADC therapies, including biomarker identification, integration into clinical trials, and interpretation of study results. In addition, the Head of Translational Medicine will work with drug discovery scientists in the biology group to evaluate and propose new targets and to design translationally-relevant pre-clinical proof-of-concept studies.

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