Scientist I（製剤研究者（創薬） / Discovery Formulation Scientist）

Role summary

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Astellas is seeking a Scientist I to support discovery formulation research in Japan. The role typically involves designing and optimizing formulations for early-stage drug candidates, conducting laboratory experiments, interpreting physicochemical and analytical data, documenting results, and collaborating with discovery, preclinical, analytical, and manufacturing teams. Candidates are expected to hold a degree in pharmaceutical sciences, chemistry, chemical engineering, or a related discipline; postgraduate research experience may be advantageous. Practical knowledge of formulation development, solubility, stability, dosage forms, and analytical techniques is desirable. The successful candidate should demonstrate sound scientific judgment, careful laboratory practice, effective communication, teamwork, problem-solving ability, and the capacity to manage multiple projects in a regulated pharmaceutical environment. Professional Japanese and English communication skills may be useful.

About the employer

Astellas Pharma Inc. is a Japan-based global pharmaceutical company headquartered in Tokyo, with research, development, manufacturing, and commercial operations across many countries. The company focuses on creating innovative medicines in areas such as oncology, immunology, neuroscience, nephrology, ophthalmology, and rare diseases. Its research organization works across discovery science, translational medicine, clinical development, and advanced drug-delivery technologies. Astellas promotes collaboration between multidisciplinary teams and invests in scientific platforms intended to address diseases with significant unmet medical needs. Employees may work with international colleagues and external academic or biotechnology partners. The company offers career opportunities in laboratory research, clinical development, regulatory affairs, manufacturing, commercial operations, and corporate functions. Benefits and working conditions vary by role, location, employment type, and Japanese company policies.