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Associate Scientist

LeadStack Inc.

Job Title: Associate Scientist

Location: Oceanside, CA

Duration: 12 Months Contract

Pay rate: $40/hr – 56/hr on W2

Position Summary

  • We are seeking a highly motivated Associate Scientist to support purification process development during pivotal and commercial development phases.
  • This contract role focuses on high‑throughput purification of upstream/cell culture samples and supports downstream purification characterization studies.
  • A core part of this role is the development and optimization of high‑throughput purification assays using state‑of‑the‑art automation platforms (e.g., Tecan, Hamilton).
  • The ideal candidate brings strong hands‑on laboratory skills, deep familiarity with HTP purification methods, and the ability to establish, troubleshoot, and refine automated workflows.

Key Responsibilities

  • High‑Throughput Purification & Automation
  • Execute high‑throughput purification (HTP) workflows for upstream/cell culture samples to support process characterization.
  • Operate, optimize, and maintain automated liquid handling systems such as Hamilton and Tecan platforms.
  • Develop, qualify, and refine HTP purification assays and microscale purification methods.
  • Collaborate with upstream teams to ensure timely sample processing and data delivery.

Purification Process Development

  • Contribute to experimental design and execute purification process development and characterization experiments.
  • Conduct bench‑scale purification studies using chromatography, filtration, and microscale systems.
  • Collect, analyze, and interpret experimental data in compliance with data integrity expectations.
  • Prepare high‑quality protocols, reports, and electronic laboratory notebook documentation.

Technical Excellence & Collaboration

  • Support implementation of new purification technologies, instrumentation, and platform enhancements.
  • Maintain a state‑of‑the‑art purification lab, including instrumentation readiness and workflow improvements.
  • Partner with upstream, downstream, and cross‑functional colleagues as needed on development and characterization initiatives.
  • Follow all compliance, training, and safety requirements.

Qualifications / Skills / Experience

  • M.S. with 2+ years or B.S. with 4+ years of relevant industry experience in chemical engineering, biochemistry, bioengineering, or related discipline.
  • Expertise developing and executing HTP purification assays, including automated liquid handling systems such as Tecan, Hamilton, and microscale chromatography platforms.
  • Experience with chromatography (e.g., AKTA, plate‑based), filtration, and standard downstream techniques.
  • Strong analytical, documentation, and problem‑solving skills.
  • Ability to work both independently and in collaborative, fast‑paced environments.
  • Excellent interpersonal, verbal, and written communication skills

If you have any questions, feel free to call me on View phone number on apply.j-vers.com or send an email on View email address on apply.j-vers.com

Vacancy posted 10 hours ago
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