Join the best radiopharmaceutical company in the world!

If you’re looking to make an impact while building a meaningful career in a specialized, fast-growing field, NorthStar Medical Radioisotopes is the place to do it. NorthStar Medical Radioisotopes is a growing, commercial-stage company focused on advancing patient care by providing therapeutic radioisotopes and novel radiopharmaceuticals to detect and treat cancer.

At the forefront of NorthStar’s technological innovation is scientific excellence, using first-in-kind electron accelerator technology and integrated campus capabilities to drive progress in radiopharmaceutical manufacturing. Our work is driven by a meaningful mission—advancing life-saving radiopharmaceutical development and ensuring a reliable supply of critical medical isotopes for patients in need. As a rapidly growing organization operating on the cutting edge of science, we offer exceptional career growth and professional development opportunities, supported by world-class facilities and a competitive benefits package.

The Analytical Chemist II is responsible for analysis of radioactive and non-radioactive samples generated in NorthStar’s production or development laboratories, maintenance, calibration and qualification of analytical measurement equipment, and may assist with quality control of products. The candidate will have a solid understanding of the principles of method validation, have strong critical thinking skills and be able to accurately interpret data.

• Operate, maintain and calibrate radiation measurement equipment, including but not limited to: HPGe, LSC (with alpha and beta counting modes), Alpha Spectrometer, gas proportional counters, dose calibrators, survey meters, and wipe test counters.
• Operate, maintain and calibrate analytical instrumentation, including but not limited to: ICP-MS, ICP-OES, MP-AES, IC, HPLC, GC and TOC.
• Perform radiochemical separations and open radiochemical work as needed to support product development.
• Review, evaluate, prepare and follow Standard Operating Procedures, Work Instructions, reports, validations and qualifications.
• Plan and coordinate testing to generate data in support product development.
• Review data, compile results, and write reports suitable for regulatory agency submission (e.g. FDA, NRC, WI-DHS, etc.)
• Engage in inter and intra departmental collaborations, providing guidance to other members of the team and those working in the laboratory.

After 3 months you will:

Have completed initial training and become familiar with your essential duties.

Have built a rapport with your team and leaders.

Actively participate in laboratory activities.

After 6 months you will:

Be proficient in operating essential instrumentation.

Actively participate in method development and validation.

Feel confident that you are making a difference.

• Medical, dental, and vision insurance
• Healthcare Flex Spending Account (FSA) and Dependent Care FSA
• Company-paid short-term and long-term disability
• Company-paid life insurance & AD&D coverage
• Pet insurance
• 401(k) match
• Paid holidays and paid time off (PTO)
• Paid parental leave
• Bonus plan
• Equity Incentive Program

Physical demands may include, but not be limited to, specific vision abilities including near vision/acuity and visual color discrimination. 

This role may involve working in a controlled cleanroom environment, general office setting, or specific manufacturing areas. Conditions may include:

• Exposure to varying temperatures, both indoors (heated/air-conditioned spaces) and outdoors
• Noise levels range from quiet to loud, depending on the work area
• Specific vision abilities, including near vision, visual acuity, and color discrimination

Personal Protective Equipment (PPE) is required and may include:

• Respirators, gloves, safety glasses, and full protective clothing
• Compliance with cleanroom gowning protocols (e.g., removal of all jewelry, including piercings)
• Prohibition of cosmetics, fragrances (perfume, aftershave), and nail products, including polish, artificial nails, or extensions

As a radiopharmaceutical manufacturing site, radiation may be present in the laboratory and production areas. Employees in this role may be required to:

• Follow strict radiation safety procedures
• Participate in dosimetry monitoring and bioassay testing as part of the company protocol
• Inform leadership of any health conditions that may affect product integrity, by cleanroom standards

NorthStar Medical Radioisotopes is proud to call Beloit, Wisconsin home. Our headquarters and primary manufacturing facility are located in this vibrant, growing community that combines the charm of a small city with the advantages of a central Midwest location. Beloit features a lively, revitalized downtown filled with local restaurants, shops, and cultural events, and is just a short drive from major metropolitan areas including Madison, Milwaukee, Chicago, and Rockford.

Situated in the heart of the South Central Wisconsin and Northern Illinois region, Beloit offers a rare blend of urban amenities and scenic natural surroundings. Whether you’re drawn to outdoor recreation, educational institutions, the arts, or historic landmarks, the area provides rich and diverse experiences for all interests. A variety of nearby communities, ranging from rural towns to suburban neighborhoods, offer flexible housing options and access to multiple school districts, making Beloit an excellent choice for individuals and families considering relocation.

NorthStar Medical Radioisotopes is an equal opportunity employer. Employment decisions are made without regard to race, color, religion, national or ethnic origin, sex, sexual orientation, gender identity or expression, age, disability, protected veteran status or other characteristics protected by law.