Senior Scientist, Radiochemistry

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.

Physical Sciences R&D is seeking a Senior Scientist with deep expertise in organic, analytical, and radiochemistry to play a critical role in the design, development, and advancement of radiopharmaceutical programs across the Telix pipeline.

In this role, the Senior Scientist will independently lead complex experimental work streams, contribute to program‑level scientific strategy, and solve technically ambiguous problems spanning discovery through GMP‑adjacent development. The position requires regular handling of radioactive materials and work within both R&D and GMP environments. The ideal candidate is a recognized technical expert who operates with minimal supervision, mentors junior scientists, and is motivated to make high‑impact contributions to the next generation of radiopharmaceutical therapeutics.

• Serve as a technical lead for assigned projects or work streams, driving experimental strategy, execution, and interpretation with limited oversight.
• Apply advanced scientific judgment to design, optimize, and troubleshoot complex radio chemical and analytical processes.
• Identify scientific risks, propose mitigation strategies, and adapt approaches in response to experimental findings.

• Independently design, execute, and document sophisticated experiments supporting radiopharmaceutical discovery and development.
• Lead the synthesis and optimization of novel bifunctional chelators and radio labeled compounds.
• Ensure experimental work is conducted efficiently, safely, and in alignment with project timelines and program goals.

• Develop, validate, and refine advanced radio analytical methods, including radio‑TLC and HPLC, to support characterization, release, and stability studies.
• Evaluate and implement improvements to analytical approaches to increase robustness, sensitivity, and throughput.

• Partner closely with Quality, Manufacturing, Regulatory, and cross‑disciplinary R&D teams to support program progression.
• Provide scientific input to cross‑functional discussions, contributing to decision‑making at the project or sub‑program level.

• Critically analyze complex datasets and translate findings into clear technical conclusions and recommendations.
• Author and review technical reports, development summaries, and presentations for internal stakeholders and external collaborators.
• Support documentation required for GxP, regulatory, or tech‑transfer activities, as applicable.

• Ensure proper operation, calibration, and qualification of laboratory equipment.
• Promote best practices in laboratory safety, radioactive material handling, and data integrity.
• Contribute to continuous improvement initiatives within the laboratory and broader R&D organization.

• Mentor and guide junior scientists, providing technical direction, feedback, and informal coaching.
• Share expertise and lessons learned to elevate overall team capability and scientific rigor.

• PhD + 5 years, MS + 6 years, or BS + 8 years of relevant industry or post‑doctoral experience.
• Demonstrated experience working with radioactive materials in an R&D and/or GMP‑adjacent environment.
• Proven track record of independent scientific contribution and problem solving.

• Advanced proficiency in synthetic organic chemistry and radiochemistry.
• Strong experience developing and…