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


Associate Scientist, Analytical

Mersana has an exciting new opening for an Associate Scientist in our Analytical Chemistry group. This is a great opportunity to join an exciting, growing organization and be part of the Mersana team!

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Associate Scientist/Scientist, Synthetic Organic Chemistry

Mersana is seeking an experienced synthetic organic chemist to participate in research projects involving the synthesis and modification of high potency cytotoxic agents and the development of linker technologies for our antibody drug conjugate platform. The research activities will involve design of synthetic routes, execution of multi-step organic synthesis of small molecule prodrug candidates, and compound structural elucidation and purity assessment to support the development of antibody-based therapeutics in oncology. The prospective candidate will be working with minimal supervision as a member of a cross-functional research team. 

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Senior/Principal, Protein Characterization & Assay Development ADC-mAb

Mersana has an exciting new opportunity for a Senior/Principal Scientist working with our growing analytical chemistry team.

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Senior/Principal Scientist, Bioanalytical DMPK

Mersana is growing and has an exciting new opportunity for a Sr/Principal Scientist, Bioanalytical DMPK to join our team.

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Head, Bioconjugation

Mersana has an exciting new opportunity to join the team as a Principal Scientist, Bioconjugation. This position will report to the Vice President of Chemistry.

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Medical Director

Mersana has an exciting new opportunity for a Medical Director. The Medical Director will oversee early stage clinical development programs for Mersana’s portfolio of products. In this role you will play a key strategic and operational role for Mersana’s development stage assets. The Medical Director will also partner with drug discovery teams to provide clinical input for target evaluation and generation of clinically-relevant discovery project blueprints.

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Associate Director, CMC Bioconjugation Development

Mersana has an exciting new opportunity to join the team as Associate Director, CMC Bioconjugation Development ideal candidates should have experience in the chemistry, manufacturing, control and scale-up of clinical stage Antibody Drug Conjugates (ADC’s).  This position is responsible for the bulk drug substance (BDS) process development of Mersana’s platform ADC’s as candidates’ progress from early clinical development through validation, to commercial launch.  The individual in this position will work as a part of Mersana’s Drug Substance CMC team in Cambridge, MA. 

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Quality Assurance Specialist I/II

Mersana has an exciting new opportunity to join the team as our Quality Assurance Specialist. 

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