Principal Scientist Director, Downstream Biologics Drug Substance Commercialization

MSD

Confirmed live today High trust

Quick summary

Work type
On-site
Location
West Point, PA
Salary
$173,200–$272,600 / yr
Posted
3 days ago
Freshness
Confirmed live today
Closes
Sep 26, 2026

Market check

Salary context

Competitive pay

How this pay compares to similar roles

Similar $210k
This role $223k
$140k most similar roles pay here $287k

This role pays more than 57% of similar roles. Most pay $164,468–$255,193 — the shaded band above. At the midpoint, this role pays about $223k versus about $210k for comparable roles.

Based on 240 similar postings.

Employer

About MSD

MSD (Merck Sharp & Dohme) is the international name for Merck & Co., a major U.S.-based pharmaceutical company.

MSD currently has 24 open roles on FindRole.

Listed pay typically runs $117,000–$184,200 across 24 roles with salary data.

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At a glance

TL;DR · Principal Scientist Director, Downstream Biologics Drug Substance Commercialization

Principal Scientist/Director (Downstream), Biologics Drug Substance Commercialization (BDSC) serves as a senior scientific and people leadership role within the BDSC-Downstream team. This position focuses on downstream processing for late-stage clinical and commercial biologics programs, including complex modalities like multi-specific antibody therapeutics. The individual will lead drug substance teams, manage a group of scientists, and provide technical leadership for laboratory and manufacturing scale studies involving process characterization, validation, and investigation. Key responsibilities include overseeing technology transfers to internal and external sites, authoring regulatory documentation, and managing lifecycle activities for commercial processes. Required expertise includes downstream unit operations such as preparative chromatography, tangential flow filtration, and virus retentive filtration. The role requires proficiency in chemical or biological engineering to solve complex manufacturing challenges while ensuring compliance with cGMP standards and U.S./EU regulatory expectations during the transition from development to global production.

What you'll do

  • Lead downstream and integrated drug substance teams supporting late-stage clinical and commercial programs.
  • Provide technical leadership for laboratory and manufacturing scale studies including process characterization and validation.
  • Serve as a subject matter expert for core unit operations and manage manufacturing lifecycle activities.
  • Execute technology transfer activities to internal and external sites, including scale-up and manufacturing readiness.
  • Author and review technical and regulatory documentation for official submissions.
  • Drive division-wide initiatives regarding biologics manufacturing strategy and multi-year planning.
  • Manage, coach, and mentor a team of downstream scientists to foster professional growth.
  • Support leadership with resource planning, staffing strategies, and talent development pipelines.

What we're looking for

  • BS, MS, or PhD in Chemical Engineering, Biological Engineering, Chemistry, or a related discipline.
  • Experience for a BS, for an MS, or for a PhD.
  • Deep technical expertise in the downstream processing of biologics.
  • Experience supporting biologics commercialization, including late-stage development and manufacturing.
  • Proven ability to lead, coach, and mentor scientific staff.
  • Strong leadership and collaboration skills within cross-functional, matrixed organizations.
  • Hands-on experience with technology transfer, scale-up, and validation of biologics processes (preferred).
  • Experience developing or supporting multi-specific antibody therapeutics (preferred).

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