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Principal Scientist, TCR Optimization

Moderna, Inc.
onsite
Cambridge, Massachusetts Posted Aug 4, 2026

About this role

The Therapeutics Research group at Moderna is seeking a talented, experienced, and highly motivated Principal Scientist to build, optimize, and execute T cell receptor optimization workflows for next-generation TCR-based therapeutics.

This individual will lead the development of scalable experimental platforms to improve key TCR properties, including affinity, cross-reactivity, stability, expression, developability, functional potency, and compatibility with mRNA-expressed therapeutic formats. The successful candidate will apply deep expertise in display-based protein engineering, TCR biology, biophysical characterization, cross-reactivity screning, and functional assays to advance TCR candidates through iterative wet-lab and computational optimization.

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