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Janux Therapeutics

Clinical-stage biotech developing tumor-activated immunotherapies

Executive Director - Process Development & Manufacturing

Bioprocess & BiomanufacturingConfirmed live in the last 24 hours
Full-timeSan Diego, CA, USA

About the Job

Requirements

  • A Ph.D. in Chemical Engineering, Biochemical Engineering, Bioengineering, Biotechnology, Biochemistry, Cell and Molecular Biology, or a related discipline with 12 or more years of relevant biotechnology or biopharmaceutical industry experience, or an M.S. with significant additional relevant industry experience.
  • Extensive experience in biologics process development and manufacturing, such as bispecific, multispecific, or T-cell engager experience, with strong knowledge of mammalian cell culture and downstream purification processes.
  • Demonstrated experience advancing biologic products from early development through clinical manufacturing and late-stage development.
  • Strong understanding of mammalian cell line development and recombinant protein expression.
  • Strong technical understanding of upstream processing, including media and feed strategies, bioreactor process development, scale-up, and process parameter optimization.
  • Strong technical understanding of downstream processing, including harvest and clarification, affinity capture, chromatography, filtration, viral safety, and tangential flow filtration/ultrafiltration and diafiltration operations.
  • Significant experience with late-stage process development, process characterization, control strategy development, scale-up, technology transfer, validation readiness, and commercial manufacturing preparation.
  • Proven experience providing technical oversight of external contract development and manufacturing organizations, including process development, technology transfer, good manufacturing practice manufacturing, and manufacturing investigations and troubleshooting.
  • Experience contributing to chemistry, manufacturing, and controls sections of regulatory filings and supporting health authority interactions.
  • Proven leadership experience, including building, managing, and mentoring high-performing technical teams.
  • Demonstrated ability to operate effectively in a fast-paced biotechnology environment and manage multiple programs and priorities.
  • Strong cross-functional collaboration, influencing, communication, and executive presentation skills.
  • United States work authorization is required.

Responsibilities

  • Provide strategic and technical leadership for cell line, cell culture, and downstream process development for drug substance manufacturing, supporting progression from research and preclinical development through early- and late-stage clinical development and commercialization.
  • Lead development and optimization of robust, scalable, and phase-appropriate manufacturing processes, considering yield, product quality, process consistency, manufacturability, and cost.
  • Provide technical direction for mammalian cell line development, cell culture, harvest and clarification, chromatography, filtration, ultrafiltration and diafiltration, and other drug substance unit operations.
  • Lead late-stage process development and characterization strategies to establish process understanding and support commercial manufacturing readiness.
  • Provide technical leadership for process characterization, identification of critical process parameters, definition of operating ranges, and development of robust manufacturing control strategies.
  • Provide technical and strategic leadership for manufacturing changes, scale changes, site transfers, process improvements, and comparability assessments as programs advance.
  • Oversee drug product technology transfer, aseptic fill and finish, and drug product campaigns at contract development and manufacturing organizations, including container closure and container closure integrity.
  • Provide technical leadership and oversight for technology transfer, scale-up, good manufacturing practice clinical manufacturing, and late-stage manufacturing activities at external contract development and manufacturing organizations.
  • Provide oversight of manufacturing campaigns and lead or support resolution of complex technical issues, deviations, process performance challenges, and manufacturing risks.
  • Work cross-functionally with Quality and Supply Chain to support reliable manufacturing execution and clinical supply.
  • Partner with Quality and Regulatory Affairs to ensure process development and manufacturing strategies support global regulatory expectations throughout clinical development.
  • Evaluate external manufacturing capabilities and contribute to contract development and manufacturing organization selection, manufacturing network strategy, and longer-term commercial manufacturing planning.
  • Ensure knowledge generated during internal and external process development is effectively transferred and incorporated into manufacturing processes and control strategies.

Desired Qualifications

  • BLA/MAA filing and pre-approval inspection experience is highly desired.

About the Company

Janux Therapeutics

Clinical-stage biotech developing tumor-activated immunotherapies

Janux Therapeutics develops cancer immunotherapies that activate the immune system inside tumors to attack cancer while sparing healthy tissue. Its products are tumor-activated and use a proprietary platform masking technology to reduce toxic side effects and improve efficacy compared with traditional T cell engagers. The company advances drug candidates through clinical trials, aiming for regulatory approval and eventual commercialization, with revenue expected from partnerships, licensing, and the sale of approved therapies. Its lead program JANX007 is being evaluated in a Phase 1 trial (ENGAGER PSMA 01) for metastatic prostate cancer to assess safety and preliminary effectiveness.

Company size
51-200
Company stage
IPO
Headquarters
San Diego, CA
Founded
2017

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