Scientist II, Developability

Scientist II, Develop ability

Department: Lab Science

Employment Type: Full Time

Location: San Mateo, CA

Big Hat Biosciences is looking for a hands‑on, bench-driven scientist to drive antibody develop ability assessments that advance our Milliner Platform for AI-designed therapeutics. This is a primarily lab-based role where you'll spend the majority of your time at the bench executing and innovating on our develop ability workflows.

* At Big Hat we believe in titles that commensurate with skill set, relative organizational impact, and value contribution; more experienced candidates are encouraged to apply, with the understanding that responsibilities and title would adjust as appropriate.

• Lead develop ability R&D projects: design, optimize, and execute high throughput develop ability assays to expand Big Hat’s toolkit.
• Drive develop ability assessments (purity, stability, tolerability, biophysical properties) across programs, with strong attention to data interpretation and organization.
• Support late-stage characterization and IND-enabling studies, including formulation screening, stress testing, peptide mapping, and simulated administration studies, to rank and advance lead candidates.
• Serve as the Develop ability lead within project teams, guiding experimental strategy to address liabilities and hit program milestones.
• Work cross-functionally to automate and train colleagues on new and existing methods, build QC frameworks for monitoring assay performance, and adapt workflows to existing LIMS infrastructure.
• Proactively and independently analyze data, interpret scientific findings, propose next steps, and broadcast findings clearly across the organization.

• PhD in Biochemistry or relevant discipline with 3+ year(s) of industry experience; exceptional non-PhD candidates with deep bench experience will be considered.
• Strong background in biophysical and analytical characterization of antibodies and antibody fragments: SEC, HIC, CE-SDS, DLS, DSF, ELISA, LC‑MS, including method development and optimization.
• Track record of translating complex data into clear results and recommended actions.
• Experience with protein structures and antibody engineering.
• Enthusiastic about learning and onboarding new technologies to expand capabilities and improve work quality, timelines, throughput or cost.
• Nice-to-haves include prior experience working in a dynamic start-up environment, working as a project lead, and working with automation.

The salary estimated for this position is $145,000 - $165,000 + bonus + options + benefits. Compensation will vary depending on job-related knowledge, skills, and experience. Actual compensation will be confirmed in writing at the time of the offer.

What Big Hat Offers:

• Range of health insurance plan options through Anthem and Kaiser (monthly credit if benefit waived)
• Dental, and vision coverage through Guardian
• Additional well-being benefits through Nayya, One Medical, Wagmo, Rula, and more
• 401(k) with company match
• DTO, two weeks of company-wide shutdown, and 12 company holidays
• Paid parental leave