Research Scientist

Department:  R&D

Reports to:   Group Leader

 CTK Biotech is a San Diego based company that develops, manufactures, and markets innovative diagnostic test kits for the IVD community worldwide. Our mission is to simplify diagnostics and improve global health. We are looking for a Scientist to join our team.

Work Environment

Equal Opportunity Employer

Responsibilities/Job description

The candidate will function as an integral member of the research team to support product development activities. Primary responsibilities include but are not limited to:

  • Involvement in the development of the following IVD product lines: ELISA, Chemiluminescence assays, POC assays.
  • Fulfill design control requirements such as feasibility studies, optimization studies and verification and validation studies. This includes but is not limited to: new products, technology transfers, validation, product improvements, and IP development.
  • Planning and execution of experiments for IVD product development under minimal supervision.
  • Effective troubleshooting and data interpretation.
  • Assists in transfer of developed products to manufacturing process.
  • Generate detailed study reports, SOPs, and technical documents to support product registration.
  • Effective communication with colleagues and present the results in weekly/month R&D meetings.
  • Must thrive in fast-paced environment and be willing to learn new technologies.
  • Maintain compliance to company quality policy.


  • PhD with 3+ years’ experience, or MS with 6+ years’ experience, or BS with 8-10 years’ experience, in Biology, Immunology, Molecular Biology, Chemistry, Biochemistry or related discipline

Preferred Knowledge, Skills, and Experience:

  • Hands-on experience in development of immunoassays (ELISA, CLIA, POCT) and biomolecule conjugation.
  • Experience in molecular biology techniques (PCR, cloning, expression).
  • Previous experience in the IVD industry is a plus.
  • Worked in a regulated environment following ISO 13485:2016.
  • Draft work instructions and SOPs for production.
  • Self-motivated, flexible, and positive attitude.
  • Strong communication skills – oral and written.
  • Excellent organizational, time management, and multi-tasking skills.
  • Ability to work both independently and as part of a team, in a fast-paced environment.
  • Collaborative personality.

Please apply through Indeed.

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