Senior Scientist, Radiochemistry

Telix Pharmaceuticals (Americas) • Los Angeles, CA

84d

About The Position

Telix Pharmaceuticals is a dynamic, fast-growing radiopharmaceutical company with offices in Australia (HQ), Belgium, Japan, Switzerland, and the United States. Our mission is to deliver on the promise of precision medicine through targeted radiation. At our core, we exist to create products that seek to improve the quality of life for people living with cancer and rare diseases. You will be supporting the international roll-out of our approved prostate cancer imaging agent and helping us to advance our portfolio of late clinical-stage products that address significant unmet need in oncology and rare diseases. The Senior Scientist, Radiochemistry is responsible for hands-on laboratory work focused on the radiolabeling of antibodies and antibody fragments with radiometals, and for the conjugation of biomolecules with metal chelators. This role requires a strong foundation in radiochemistry, protein biochemistry, and antibody characterization. The position will support preclinical research activities in cancer theranostics and therapeutic applications, while also contributing to translational development and early CMC scale-up initiatives. The individual will serve as the Radiation Safety Officer (RSO) for the site and will ensure compliance with all radiation safety regulations and internal practices.

Requirements

• Bachelors plus 8+ years, Masters plus 6+ years, Ph.D. plus 5+ years in Chemistry, Biochemistry, Radiochemistry, Pharmaceutical Sciences, or related field
• 3+ years of laboratory experience in radiolabeling of biologics, metal chelator chemistry, and related QC techniques
• Strong background in protein biochemistry, including antibody purification, conjugation, and characterization
• Experience with analytical methods commonly applied in radiopharmaceutical and protein characterization
• Prior or current qualification as Radiation Safety Officer (or equivalent experience)
• Knowledge of regulations governing radiation safety
• Strong documentation, organizational, and communication skills

Nice To Haves

• Experience with preclinical radiopharmaceutical development in oncology
• Familiarity with CMC scale-up activities and regulatory documentation
• Experience with GMP or GLP environments

Responsibilities

• Perform and optimize radiolabeling of antibodies and antibody fragments with therapeutic and diagnostic radiometals (e.g., 177-Lu, 225-Ac, 89-Zr, 64-Cu, etc.)
• Conduct chemical conjugation of antibodies with metal chelators (e.g., DOTA, DOTAGA, DTPA, DFO, MACROPA)
• Develop reproducible and scalable labeling protocols for preclinical and translational applications
• Design and execute quality control assays (HPLC, iTLC, SEC, SDS-PAGE)
• Develop and transfer analytical methods to support preclinical studies and CMC activities
• Apply biochemical expertise in antibody/protein handling, purification, and characterization
• Assess protein integrity and stability following conjugation and radiolabeling
• Support analytical method development for protein-radiometal conjugates
• Collaborate with in-vivo biology team to support in vitro and in vivo studies
• Provide input into CMC scale-up activities
• Contribute to IND-enabling activities, including process documentation and technology transfer
• Serve as the site’s Radiation Safety Officer (RSO)
• Maintain compliance with local, state, and federal radiation safety regulations
• Implement radiation safety procedures, train laboratory staff, and maintain required records and licenses

Benefits

• Competitive salaries
• Annual performance-based bonuses
• Equity-based incentive program
• Generous vacation
• Paid wellness days
• Support for learning and development

What This Job Offers

• Career Level: Senior
• Education Level: Ph.D. or professional degree
• Number of Employees: 251-500 employees