Preclinical R&D Expert – ADC & Bispecifics
Mercor is partnering with a venture-backed AI lab building frontier AI platforms and physics-based foundation models for chemistry, materials science, and drug discovery.
Hiring companyMercor
About the role
They're extending their platform into new areas of pharmaceutical development and are looking for hands-on ADC and/or bispecific experts to help guide what they build.
Are you a preclinical R&D scientist who has taken drug programs from the bench toward the clinic — and curious how AI is reshaping drug discovery? This is a hands-on role that blends your wet-lab and translational experience with a growing understanding of how scientific data trains the next generation of AI models.
This is a hands-on preclinical R&D role — likely not the right fit if your work is mainly CRO/CDMO services, academic-only, QC/analytical-only, clinical-development-only, diagnostics, or regulatory/medical-writing.
Your work will directly feed into the models reshaping how medicines are discovered, helping intelligent systems reason about real-world pharmaceutical R&D.
Here are more details about the role:
- You will interface directly with the client team.
- This is an ongoing, part-time engagement of roughly 10 hours per week.
- Seniority welcome from individual contributor through Director.
Contract and Payment Terms
- You will be engaged as an independent contractor.
- This is a fully remote role that can be completed on your own schedule.
- Projects can be extended, shortened, or concluded early depending on needs and performance.
- Your work at Mercor will not involve access to confidential or proprietary information from any employer, client, or institution.
Responsibilities
- Review technical materials and real-world R&D data across ADC and/or bispecific programs.
- Label, classify, and annotate scientific data and model outputs to improve model performance.
- Provide expert perspective on key scientific and development decisions (target/modality selection, optimization, trade-offs, risk).
- Help define structure and quality standards for the client's dataset pipeline.
- Participate in expert discussions, interviews, and research engagements.
Required skills
- Have hands-on, non-administrative preclinical R&D experience at a company that develops its own drug assets in-house and has taken programs to the clinic — Must Have.
- Have direct experience with ADCs and/or bispecific (or multispecific) antibodies — Must Have.
- Work in a core R&D function: discovery biology, medicinal chemistry, protein/antibody engineering, computational, in vivo/translational, pharmacology/PK-PD, toxicology, or CMC/formulation — Must Have.
- Have 5+ years of relevant industry R&D experience (flexible based on depth).
Preferred skills
- Have taken a program through lead optimization or IND-enabling/preclinical development (nice to have).
- Have experience at mid-sized, emerging, or resource-constrained biotech — ideally currently outside the top-20 pharmaceutical companies (nice to have).
Eligibility
Work arrangement: Fully remote
Please note: We are unable to support H1-B or STEM OPT candidates at this time.
Compensation details
$60–$100 per hour.
- Payments are weekly on Stripe or Wise based on services rendered.
More about the hiring companyMercor

