Job: 14-22BA

About Ambrx:

Ambrx, Inc. is a biopharmaceutical company with a mission to deliver breakthrough protein therapeutics. Ambrx is based on a fundamental advance in protein biosynthesis that enables the company to genetically engineer proteins with new amino acid building blocks beyond the common twenty, enabling the biosynthesis of proteins with new physical, chemical and pharmacological properties. At Ambrx, we are dedicated to assembling and developing an exceptional team and a breakthrough technology to create the next generation of protein-based medicines.



  • Independently design and perform in vitrobinding and cellular assays to assess drug candidate function, including human immune cell isolation and tumor cell co-cultures
  • Analyze and interpret experimental results and present findings at project team meetings
  • May provide technical expertise to project teams for functional assay development, immunoassay design, flow cytometry, and/or other specialized techniques
  • May support management of external studies with CROs and/or collaborators
  • Maintain detailed records in laboratory notebooks in accordance with company policy
  • Contribute to writing of technical reports, SOPs, patent applications, and scientific manuscripts for publication



  • B.S. or M.S. in Biology/Biochemistry or similar
  • RA I, RA II, or Senior RA-title will be determined for qualified applicants based on experience level (for SrRA: > 6 years industry experience; or M.S. + 4 years)
  • Experience with in vitro agonist/antagonist study design, including appropriate controls, benchmarks, dose responses, variability, reproducibility, etc.
  • Proficiency in diverse laboratory techniques, including cell culture, flow cytometry, ELISA/MSD/HTRF/etc, and primary human immune cell isolation
  • May have experience with mouse handling, dosing, and pharmacology models
  • Demonstrated ability to analyze complex data sets and concisely and communicate results
  • Excellent organizational, time-management, and multi-tasking skills
  • Consistently uses analytical thinking, persistence, and creativity to overcome challenges
  • Excellent verbal and written communication and interpersonal skills


How to Apply

To be considered as an applicant, please submit your resume/CV referencing the specific position of interest and position code to Applicants whose qualifications and experience most closely match the position requirements will be contacted for further evaluation. Ambrx offers competitive compensation & benefits.  EOE