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Associate Downstream Process Development Scientist Jobs in New York

MSD

Biologics Process Development Scientific Lead

Rahway, NJ · On-site

$105K - $136K/yr

The Scientific Lead partners closely with upstream and downstream process development to support integrated development strategies. The role provides subject matter expertise, influences technical ...

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Associate Downstream Process Development Scientist information

What is an Associate Downstream Process Development Scientist?

An Associate Downstream Process Development Scientist is a professional who works in the biotechnology or pharmaceutical industry, focusing on developing and optimizing processes that purify biological products, such as proteins or antibodies, after they have been produced by cells. Their work is crucial for ensuring the final product meets quality and safety standards before it is used in research or clinical applications. They typically perform laboratory experiments, analyze data, and collaborate with other scientists and engineers to improve yield and efficiency. This role is often entry-level or early-career, providing hands-on experience in process development and technical troubleshooting.

What are the key skills and qualifications needed to thrive as an Associate Downstream Process Development Scientist, and why are they important?

To excel as an Associate Downstream Process Development Scientist, you need a solid understanding of biochemistry, chemical engineering, and downstream purification techniques, often supported by a bachelor's or master's degree in a life science or engineering discipline. Familiarity with chromatographic systems (such as AKTA), filtration equipment, and analytical tools, as well as knowledge of GMP/GLP regulations, is typically required. Strong problem-solving, attention to detail, and effective teamwork and communication skills help you navigate complex experiments and collaborate with cross-functional teams. These skills ensure efficient process optimization, compliance with regulatory standards, and successful development of biopharmaceutical products.

What is the difference between Associate Downstream Process Development Scientist vs Associate Upstream Process Development Scientist?

AspectAssociate Downstream Process Development ScientistAssociate Upstream Process Development Scientist
Primary FocusPurification and recovery of bioproductsCell culture and fermentation processes
Required SkillsProtein purification, chromatography, filtrationCell culture, bioreactor operation, media preparation
Work EnvironmentLaboratories, manufacturing facilitiesLaboratories, bioreactor labs
Common CertificationsBiotech or bioprocessing certificationsBiotech or bioprocessing certifications

Both roles are essential in biopharmaceutical development, focusing on different stages of the production process. The Associate Downstream Process Development Scientist specializes in purification techniques, while the Associate Upstream Process Development Scientist concentrates on cell growth and fermentation. Understanding these distinctions helps candidates target their skills and career paths effectively.

What are some typical challenges faced by an Associate Downstream Process Development Scientist, and how can they be addressed?

Associate Downstream Process Development Scientists often encounter challenges such as optimizing purification processes, troubleshooting equipment performance, and ensuring batch-to-batch consistency. These challenges can be addressed by maintaining meticulous documentation, collaborating closely with upstream and analytical teams, and staying current with best practices in chromatography and filtration. Proactively seeking feedback from experienced colleagues and participating in cross-functional meetings can also help in identifying solutions and improving process efficiency.
What are the most commonly searched types of Downstream Process Development Scientist jobs in New York? The most popular types of Downstream Process Development Scientist jobs in New York are:
What cities in New York are hiring for Associate Downstream Process Development Scientist jobs? Cities in New York with the most Associate Downstream Process Development Scientist job openings:
Associate Downstream Process Development Scientist jobs near you
Infographic showing various Associate Downstream Process Development Scientist job openings in New York as of July 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

Principal Scientist, Lentivirus Downstream Process Development

Legend Biotech US

Somerset, NJ • Hybrid

Other

Re-posted 3 days ago

Job description

Legend Biotech is seeking a Principal Scientist, Lentivirus Downstream Process Development as part of the Technical Development team based in Somerset, NJ.

Role Overview

The Principal Scientist, Lentivirus Downstream Process Development, will be a key technical leader responsible for designing, optimizing, and scaling purification processes for lentiviral vectors (LVV) within our innovative pipeline. This role focuses on delivering high-quality vector products to support LVV generation and other advanced cell therapy programs. The successful candidate will drive scientific excellence in downstream processing (DSP)-including clarification, chromatography, TFF, sterile filtration and fill/finish-ensuring processes are robust, scalable, and phase-appropriate for GMP manufacturing. This position demands a blend of hands-on technical mastery and strategic thinking to accelerate timelines while maintaining a patient-focused approach.

Key Responsibilities

  • Design and execute highly efficient purification strategies for lentiviral vectors, specifically optimized for CAR-T applications.
  • Direct the development and optimization of downstream processes including and not limited to: clarification (depth filtration, centrifugation), chromatography (AEX, SEC, HIC), and Tangential Flow Filtration (TFF) for concentration and diafiltration.
  • Provide hands-on training as needed.
  • Direct the translation of bench-scale processes to GMP manufacturing, ensuring seamless technology transfer and providing troubleshooting support during clinical production runs
  • Lead the execution of study protocols to define operating parameters and performance limits; implement state-of-the-art knowledge management for DSP data.
  • Communicate the potential for issues and delays along with solutions and mitigation approaches.
  • In collaboration with the Senior Leaders, CMC Project Manager, Project Leader, and other technical leads identify project acceleration opportunities.
  • Leverage advanced science and technology to maximize vector recovery, purity, and potency, identifying creative solutions to define unknowns in the viral vector field.
  • Guide a team of scientists in the execution of project-specific activities, fostering a culture of transparency, scientific rigor, and continuous improvement.
  • Author and serve as a primary reviewer for technical documents, including development reports, SOPs, and CMC sections for regulatory submissions (IND/IMPD).
  • Work closely with Upstream Process Development and Analytical Development teams to ensure integrated and holistic process outcomes.
  • Tech transfer process to/from other Legend sites or CDMOs
  • Resolve conflict and proactively identify/address performance issues.
  • Ensure compliance with regulatory requirements. 

Requirements

  • Advanced degree (PhD preferred, or MS) in Chemical Engineering, Biomedical Engineering, Virology, Molecular Biology, or a related field.
  • 8+ years (PhD) or 10+ years (MS) of experience in process development or manufacturing within a biotech or pharmaceutical setting.
  • Deep technical hands-on experience in purification, chromatography, and TFF specifically for viral vectors (Lentivirus preferred)
  • Strong understanding of GMP manufacturing requirements and CMC strategies for early-phase clinical trials.
  • Deep knowledge and hands-on experiences in cell and lentiviral vector technologies within the current emerging field
  • Ability to implement closed-system processes and maximize cost effectiveness
  • Strong knowledge in engineering modeling and optimization.
  • Excellent leadership, emotional intelligence, and communication skills; ability to maintain composure and strategic focus during challenging development timelines.
  • Creative, strategic thinking
  • Strong troubleshooting skills
  • Preferred experience in developing vector processes tailored for CAR-T generation and systemic delivery
  • Preferred experience in handling large scale(>50L) purification process.
  • Language: English. Mandarin is a plus. 

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