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Oligonucleotide Scientist II

Pharmaceutical Company
South San Francisco, CA Contractor
POSTED ON 7/24/2026
AVAILABLE BEFORE 8/21/2026

Job Title: Scientist II - Oligonucleotide Discovery

Location: South San Francisco, California, United States

Workplace Type: On-site

Employment Type: Contract on W2

Contract Duration: 12 Months (Possible Extension)


Job Description

We are seeking a Scientist II to support an innovative research team focused on oligonucleotide therapeutics discovery. This role offers the opportunity to contribute to cutting-edge RNA-based drug discovery programs in a highly collaborative research environment.

The successful candidate will work alongside multidisciplinary scientists supporting therapeutic programs across neuroscience, oncology, and immunology while driving nucleic acid chemistry and oligonucleotide synthesis activities.

Responsibilities

  • Perform automated oligonucleotide synthesis using oligo synthesizers.
  • Purify and characterize oligonucleotides using HPLC and Mass Spectrometry.
  • Troubleshoot synthesis processes and impurity profiling.
  • Develop and optimize nucleic acid chemistry workflows.
  • Support lead molecule scale-up synthesis for preclinical studies.
  • Collaborate with cross-functional biology and chemistry teams.
  • Maintain laboratory instrumentation including oligo synthesizers, HPLC systems, and desalting equipment.
  • Analyze experimental data and support therapeutic candidate progression.
  • Review scientific literature and propose innovative chemistry strategies.
  • Maintain accurate laboratory documentation while meeting project timelines.

Required Qualifications

  • BS or MS in Organic Chemistry or related scientific discipline.
  • Hands-on experience with automated oligonucleotide synthesis.
  • Experience with HPLC purification and Mass Spectrometry characterization.
  • Knowledge of nucleic acid chemistry and oligonucleotide therapeutics.
  • Strong analytical and troubleshooting skills.
  • Excellent written and verbal communication skills.
  • Ability to work independently and collaboratively in a fast-paced research environment.

Preferred Qualifications

  • Industry experience in pharmaceutical or biotechnology R&D.
  • Experience with RNAi therapeutics.
  • Knowledge of siRNA, ASO, or other nucleic acid therapeutic modalities.
  • Experience with oligonucleotide delivery technologies.
  • Bio-conjugation or large molecule drug discovery experience.

Interview Process

  • One Round Interview (30 Minutes)
  • Local candidates attend onsite.
  • Non-local candidates may interview virtually.

Hourly Wage Estimation for Oligonucleotide Scientist II in South San Francisco, CA
$55.00 to $67.00
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