(Senior / Principal) Scientist, Cell Biology (Night Shift) at Capable Labs | CA, US | Rezi

(Senior / Principal) Scientist, Cell Biology (Night Shift) at Capable Labs

(Senior / Principal) Scientist, Cell Biology (Night Shift)

Capable Labs · CA, US

2 weeks ago

(Senior / Principal) Scientist, Cell Biology (Night Shift)

Capable Labs · CA, US

21 days ago
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About the Role

Lead cell-based assay development and execution on a dedicated night-shift schedule, focusing on generating reliable GPCR pharmacology data to inform compound decisions. Own assay quality, troubleshoot biological systems, and create clean handoffs for a continuous experimental loop.

Responsibilities

  • Lead the design, execution, and optimization of cell-based GPCR assays, including calcium flux, cAMP, IP1/IP accumulation, beta-arrestin recruitment, receptor internalization, membrane potential, and related readouts.
  • Develop robust workflows across transient and stable cell systems, optimizing culture conditions, plating density, receptor expression, stimulation formats, time courses, dose-response designs, and assay windows.
  • Use fluorescence, luminescence, HTRF/TR-FRET, BRET, ELISA, plate-reader, imaging, and related methods to characterize potency, efficacy, selectivity, kinetics, bias, and reproducibility.
  • Set assay controls, quality standards, and troubleshooting strategies that produce interpretable, decision-ready data.
  • Investigate noisy curves, unusual plates, inconsistent biology, or compound results that do not make sense, and resolve root causes before problems repeat.
  • Work closely with chemists and automation engineers to connect newly synthesized compounds to biological activity and prioritize the next experiments.
  • Document overnight work and provide clear handoffs covering results, failures, decisions, and follow-up actions for the day team.

Requirements

  • Able and willing to work the designated night-shift schedule reliably and make sound technical decisions independently when needed.
  • Deep hands-on experience developing and running cell-based assays in cell biology, pharmacology, molecular biology, chemical biology, neuroscience, bioengineering, screening, or a closely related area.
  • Strong experimental judgment and a systematic approach to assay troubleshooting, reproducibility, controls, and data interpretation.
  • Experience with GPCR signaling assays such as calcium flux, cAMP, IP1/IP accumulation, beta-arrestin, or receptor trafficking is helpful but not required.
  • The ability to set technical direction, improve workflows, and collaborate closely with chemistry and automation teams while remaining hands-on.
  • Clear, disciplined documentation and communication across night-to-day handoffs.

Skills

  • Cell-based assay development
  • GPCR pharmacology
  • Calcium flux assays
  • cAMP assays
  • IP1/IP accumulation assays
  • Beta-arrestin recruitment assays
  • Receptor internalization assays
  • Membrane potential assays
  • Fluorescence
  • Luminescence
  • HTRF/TR-FRET
  • BRET
  • ELISA
  • Plate-reader operation
  • Imaging
  • Assay troubleshooting
  • Data interpretation
  • Documentation
  • Communication

Location

  • San Francisco

Work Type

  • Night-shift schedule
  • Full-time

Experience Level

  • Senior

Salary/Compensations

  • $500+ monthly wellness budget
  • Generous equity options
  • Healthy dinners provided daily

Benefits

  • Medical coverage
  • Dental coverage
  • Vision coverage
  • HSA
  • FSA
  • 401K plans
  • Visa sponsorship

About the Company

  • Vibrant and intensely mission-driven team.
  • Members from MIT, Harvard Medical School, Roche, ETH, and Dana-Farber.
  • Values speed and rigor, coupled with excitement, drive, and a strong work ethic.
  • Early-stage environment valuing clarity, ownership, and follow-through.
  • A place for ambitious, high-integrity people who want to become dramatically better.
  • Surrounded by people who care intensely about the work and receive close feedback.
  • Room to own increasingly important problems.
  • Believes excellent work should be met with meaningful reward, ownership, and trust.
  • Responsibility is earned through contribution, not title alone.
  • Fast, transparent, and personal application process.
  • International team with members from Canada, Pakistan, Germany, Austria, Switzerland, China, India, and the United States.

Equal Opportunity

  • Capable is an Equal Opportunity Employer; employment with Capable is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.