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Sr./Staff Scientist, Peptide/Nucleic Acid Chemistry

Fapon

Pleasanton, CA, United States permanent

Posted: October 23, 2025

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Quick Summary

We are seeking a Sr./Staff Scientist, Peptide/Nucleic Acid Chemistry with a strong background in proteomics and a passion for innovation, to join our team at Lunar Biosciences in Pleasanton, CA.

Job Description

About Lunar Biosciences

Backed by Fapon Biotech, an international leader in in vitro diagnostics, biologics, and precision medicines, Lunar Biosciences is a cutting-edge biotech startup at the forefront of proteomics innovation. Headquartered in Pleasanton, California, our mission is to unlock the secrets of proteoforms through our revolutionary proteomics platform. Our technology is reshaping the landscape of drug discovery and biomarker development, driving the shift from traditional methods to precision, data-driven medicine.

About Fapon Biotech

Founded in 2001 and headquartered in Guangdong, China, Fapon Group is mainly engaged in product R&D and services of in vitro diagnostics (IVD), biological therapies, and precision diagnostics and treatments. With our core value of "foresee and prepare for what the future demands", Fapon has historically focused on three major businesses: raw material solutions, IVD ecosystem platform service, and intelligent digital diagnosis and treatment. Fapon’s recent expansion into therapeutics was recently marked by success with the receipt of IND approval from the FDA for a differentiated CD47 antibody drug, the first in a rapidly expanding therapeutics effort.

With a global footprint, Fapon has established major production and sales (R&D) bases in Beijing, Shenzhen, Shanghai, the United States, Germany, India and other locations throughout the world, forming a global R&D, production, marketing, and service network with products being widely sold in 61 countries and regions.

You can learn more about us by visiting https://en.faponbiotech.com

We are seeking a talented and passionate Sr./Staff Scientist to join our growing team. You will lead chemistry efforts to develop multi-step chemical processes that will be implemented in our groundbreaking technology. As part of a fast-paced and collaborative startup environment, you will work closely with a multidisciplinary team to build core chemistry solutions for our sequencing technology.

• Design, and implement experimental strategies in developing chemistries for a non-mass spec based proprietary proteomics workflow
• Develop and optimize protocols to accommodate cross-functional processes including the automation if necessary
• Manage and prioritize multiple timelines across diverse projects/goals in coordination with other functional progress
• Participate in multidisciplinary team activities, demonstrating commitment to the rapid identification and resolution of problems, and advancing projects through critical internal review processes
• Review research papers and intellectual property literature in support of ongoing research projects

• Ph.D. in organic, medicinal chemistry, biochemistry, or chemical engineering with at least 5 years of professional experience in a biotech or pharma environment.
• Extensive experience in developing novel chemical methodologies for proximity ligation, surface chemistry/ beads assay development, solid-phase synthesis and advanced purification techniques, and beyond.
• Proficiency in contemporary protein (orthogonal) conjugation and analytical methods such as mass spectrometry, HPLC, and NMR.
• Deep understanding of Edman degradation in protein sequencing chemistry.
• Strong problem-solving skills and the ability to work both independently and within a team.
• Willing and capable of being hands-on in the wet-lab

Why Join Us?

At Lunar Biosciences, you’ll be part of a mission-driven team working on the next wave of advancements in proteomics and precision medicine. We offer a dynamic and innovative startup environment where you’ll have the opportunity to impact human health and well-being while working alongside passionate, dedicated professionals.

Additional Information:

• Base salary: $130,000/year - $160,000/year. The final salary will be determined based on the candidate's experience, qualifications, and skillsets.
• Eligible employees may receive company equity as part of the total compensation package.
• Financial security through competitive compensation, incentives, and retirement plan
• Health care and well-being programs, including competitive medical, dental, vision, life and long-term disability insurance.
• Generous paid time off including vacation, sick time, and holidays
• 401(k) retirement savings with a company match
• We continue to optimize our benefits & wellness programs as we grow our organization to make sure they meet our diverse workforce needs.
• .

How to Apply:

If you’re excited about joining a team that’s driving revolutionary change in proteomics and precision medicine, we’d love to hear from you. Apply today!

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