Main Responsibilities: 1. Serve as a scientific expert in chemistry and provide recommendations regarding innovative payload/linker synthesis routes design and responsible for new payload/linker synthesis; 2. Perform literature reviews, design, propose, and execute medicinal chemistry plans, help senior leader to coordinate chemistry and biology data to support compound synthesis progression and patent strategies; 3. Lead a group to execute research projects well by providing on-time and high-quality delivery; 4. Responsible for the chemistry lab routine operation; 5. Train and help key members of the team to solve chemistry problems; 6. Ensure communication and provide updates on project status to senior leader and ******s; 7. Working closely with partners in CMC, PM and conjugation team to promote projects progress. 83 Requirements: 1. Master/PhD Degree in synthetic organic chemistry or medicinal chemistry with more than 2-3 years of pharmaceutical industry experience. 2. Ability to operate within aggressive timelines. 3. Flexible and innovative problem solver. 4. Fluent in oral and written English. 5. Experience in ADC payload/linker chemistry is a pl*******************