About The Position

Nosis Bio is a well-funded biotech startup focused on cell-specific delivery of RNA therapeutics. The company combines expertise in receptor biology, generative AI, and high-throughput in vivo data generation to develop RNA therapeutics for new tissues, and partners with pharmaceutical companies, research institutions, and biotech companies. The Research Associate I / II / Senior Research Associate will conduct molecular biology-based assays to evaluate the pharmacokinetic (PK) and pharmacodynamic (PD) properties of therapeutic candidates. This hands-on role supports drug discovery projects and involves high-throughput molecular biology assays, sample processing, mammalian cell culture, assay development, lab automation, data quality control, documentation, inventory management, equipment troubleshooting, and cross-functional coordination. The position is based onsite in Nosis Bio’s lab spaces at Research Park at Marina Village in Alameda, California. The level depends on academic and professional experience.

Requirements

  • Ability to work onsite in the company’s lab spaces at Research Park at Marina Village in Alameda, California.
  • Motivation, proactivity, and strong problem-solving skills.
  • Team-oriented approach and willingness to collaborate across scientific disciplines.
  • For Research Associate I: undergraduate degree and 0–2 years of industry or similar experience.
  • For Research Associate II: bachelor’s degree with 2–4 years of industry or similar experience, or master’s degree with 0–2 years of industry or similar experience.
  • For Senior Research Associate: bachelor’s degree with 4 or more years of industry or similar experience, or master’s degree with 2 or more years of industry or similar experience.

Responsibilities

  • Execute routine molecular biology workflows, including RNA/DNA extraction, cDNA synthesis, PCR/RT-qPCR, and ddPCR.
  • Prepare reagents, buffers, and master mixes, and maintain clean work practices using RNase-free technique.
  • Process samples from cells, tissues, and biofluids, including homogenization, lysis, cleanup, quantification, and normalization.
  • Maintain accurate, real-time documentation in the electronic lab notebook, including protocols, deviations, and raw data traceability.
  • Conduct data quality control and basic analysis, including standard curves, ddCt, and acceptance criteria, and summarize results for team review.
  • Support assay development and optimization, including primer/probe evaluation, thermal gradient optimization, input range testing, inhibition checks, and repeatability testing.
  • Maintain mammalian cell cultures, including immortalized, engineered, and primary cells, using aseptic technique; perform thawing, passaging, cryopreservation, cell counting and viability assessment, and routine mycoplasma testing; plate and prepare cells for downstream assays.
  • Use automated liquid handlers and other lab automation for plate-based assays; help develop, program, and validate instrument protocols, verifying accuracy and precision against manual methods.
  • Manage molecular and cell biology consumables inventory, coordinate ordering, monitor reagent lot changes, and qualify new lots as needed.
  • Troubleshoot core lab equipment, including qPCR/ddPCR instruments, plate readers, centrifuges, and biosafety cabinets, and escalate service needs appropriately.
  • Coordinate cross-functionally to ensure samples are collected, labeled, stored, and transferred correctly.
  • Share results across the company with clear context, controls, and interpretation.
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