Biologics Purification & Process Development Lead

Gilead Sciences Inc.; Foster City (CA); On-site; USD 226,000 - 293,000; Full time

Benefits offered by this job

Medical, dental, vision, life coverage

Discretionary bonus and stock‑based (L

PTO and holidays

Job summary

Gilead Sciences Inc. in Foster City, CA is seeking a senior purification development leader to define and execute strategy for pivotal and commercial biologics programs.

You will guide process development, characterization, scale‑up, technology transfer, and manufacturing support across teams. The role requires extensive downstream processing knowledge and a proven ability to lead complex programs while communicating clearly with stakeholders.

Qualifications

• Extensive experience in biologics purification process development, characterization, scale‑up, technology transfer, validation readiness, or commercial manufacturing support.
• Demonstrated experience leading complex process‑development programs or a portfolio of related activities.
• Strong knowledge of downstream processing and biologics manufacturing.

Responsibilities

• Define and execute purification development strategy for a portfolio of pivotal, commercial, and lifecycle-management biologics programs.
• Provide scientific and technical direction for process development, characterization, scale‑up, validation readiness, technology transfer, and commercial manufacturing support.
• Oversee development of robust and manufacturable drug substance purification processes, including harvest clarification, chromatography, virus inactivation, virus filtration, ultrafiltration/diafiltration, formulation, and final drug substance filtration.
• Direct risk‑based process characterization strategies, scale‑down model development, process parameter evaluation, and establishment of scientifically justified process control strategies.
• Provide technical support for technology transfers to internal manufacturing sites, external partners, and contract development and manufacturing organizations.

Skills

Leadership

Cross-functional collaboration

Scientific judgment

Communication

Education

PhD with 8+ years experience

MS with 10+ years experience

BS with 12+ years experience

Tools

cGMP knowledge

Job description

Gilead Sciences Inc. in Foster City, CA is seeking a senior purification development leader to define and execute strategy for pivotal and commercial biologics programs.

You will guide process development, characterization, scale‑up, technology transfer, and manufacturing support across teams. The role requires extensive downstream processing knowledge and a proven ability to lead complex programs while communicating clearly with stakeholders.