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Senior Scientist Downstream Process Development Jobs in Boston, MA

We are seeking a Senior Scientist, Process Development, responsible for executing cell culture experiments, downstream processing, analyzing data, and contributing to process development projects.

Process Development Senior Scientist

Cambridge, MA · On-site

$100K - $136K/yr

Process Development Senior Scientist What you will do Let'sdo this.Let'schange the world. In this vital role you willbe responsible fordevelopment, characterization, scale-up and support of drug ...

Process Development Senior Scientist

Cambridge, MA · Hybrid

$100K - $136K/yr

Process Development Senior Scientist What you will do Let's do this. Let's change the world. In this vital role you will join our Drug Substance Technologies - Synthetics (DSTS) group at either our ...

Join us and transform the lives of patients while transforming your career Process Development Senior Scientist . What you will do Let's do this. Let's change the world. In this vital role you will ...

The Downstream Process Development Engineer III is responsible for supporting downstream ... process development work Work with more senior process engineers to plan and execute larger ...

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Senior Scientist Downstream Process Development information

See Boston, MA salary details

$72.2K

$120.1K

$178.7K

How much do senior scientist downstream process development jobs pay per year?

As of Aug 8, 2026, the average yearly pay for senior scientist downstream process development in Boston, MA is $120,096.00, according to ZipRecruiter salary data. Most workers in this role earn between $99,400.00 and $135,800.00 per year, depending on experience, location, and employer.

What does a senior scientist in downstream process development do?

A Senior Scientist in Downstream Process Development focuses on developing, optimizing, and scaling up processes to purify biological products such as proteins or antibodies after cell culture (the 'downstream' part of biomanufacturing). They design experiments, analyze data, and work with cross-functional teams to ensure product quality and regulatory compliance. Their role is critical in moving biopharmaceutical products from research to commercial production by ensuring efficient and robust purification processes.

What are the key skills and qualifications needed to thrive as a senior scientist in downstream process development?

To thrive as a Senior Scientist in Downstream Process Development, you need advanced knowledge in bioprocess engineering, protein purification, and process scale-up, typically supported by a Ph.D. or Master’s degree in a relevant field. Expertise with chromatography systems (such as AKTA), analytical instrumentation, and familiarity with regulatory requirements like GMP are essential. Strong problem-solving abilities, leadership, and effective communication skills distinguish top performers in this role. These competencies are crucial for developing robust, scalable processes that meet quality standards and drive successful product development.

What are some common challenges faced by senior scientists in downstream process development, and how can they be addressed?

Senior Scientists in Downstream Process Development often encounter challenges such as optimizing purification processes for novel biologics, scaling up from lab to production scale, and ensuring product consistency and regulatory compliance. Addressing these challenges typically involves close collaboration with cross-functional teams, continuous process optimization, and staying current with industry advancements in chromatography and filtration technologies. Proactive problem-solving, effective communication, and leveraging data analytics are also key strategies for overcoming obstacles in this role.
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Infographic showing various Senior Scientist Downstream Process Development job openings in Boston, MA as of August 2026, with employment types broken down into 1% As Needed, 81% Full Time, 15% Part Time, and 3% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $120,096 per year, or $57.7 per hour.

DOWNSTREAM PROCESS DEVELOPMENT SCIENTIST

MyGradJob

Billerica, MA

Full-time

Re-posted 16 days ago


Job description

Company Description

MilliporeSigma is the North American life science brand of Merck KGaA, Darmstadt, Germany - a leading science and technology company. It offers a broad range of innovative products and services to biotech and pharmaceutical drug therapies businesses. Through dedicated collaboration with the scientific and engineering communities, and as one of the top three R&D investors in the life science tools industry, the brand serves as a strategic partner to customers and helps advance the promise of life science.

Job Description
  • Design fit-for-purpose purification experiments according to the stage of development
  • Ensure scientific evaluation of impact of deviations to Downstream validation studies
  • Compile and analyze experimental data to generate process knowledge and decide on next steps
  • Write development and validation reports and ensure their timely delivery
  • Prepare and present project updates to global project team and to upper management
  • Ensure a continuous improvement within Downstream process development activities
  • Represent & promote E2E and Biodevelopment activities (presentations, congresses, events)
  • Technical lead on the overall projects (supervises Downstream processes development and implementation of new methods and services)
  • Technical leader for equipment, technologies for Downstream process development
  • Responsible for activities ranging from protein purification, filtration, biochemical and biophysical characterization of proteins: -
  • Execute routine protein purification with affinity, size exclusion, ion exchange, and hydrophobic interaction chromatography using AKTA systems (Unicorn software)
  • Perform analyses including but not limited to SDS-PAGE, SE-HPLC, LAL, host cell-DNA, host cell protein, as necessary
  • To develop, validate and transfer robust analytical methods required for successful drug development and manufacturing.
  • To support follow-up and troubleshooting on analytical methods.
  • Provide expertise and insight to guide development of appropriate purification methods
  • Develop novel purification processes as well as using standard methods to purify proteins from the mg to gram scale. Processes will be multiple steps and must provide necessary clearance of viruses, endotoxin, and host cell proteins and DNA.
  • Perform, develop and optimize robust, efficient, scalable strategies for improving process performance. Activities will include small-scale studies and pilot scale purification studies.
  • Apply DOE methods to purification activities
Qualifications
  • Engineering/Master degree (PhD preferred) in biotechnology with 5+ years in the biopharmaceutical industry
  • Solid and proven theoretical basis and hands-on experience in protein purification and analytical characterization
  • Hands-on experience with purification unit operations including filtration, chromatography, TFF, UF/DF, AKTA, UNICORN and HPLC systems.
  • Strong hands-on experience in troubleshooting and routine instrument maintenance.
  • Experienced in protein purification via affinity, hydrophobic interaction (HIC), ion exchange (IEX), size exclusion (SEC) and mixed-mode chromatography
  • Knowledge and skills in biochemical characterization of proteins including analytical and biophysical
  • Proven track record in Purification Process Development is necessary with emphasis on chromatographic separations and excellent understanding of and experience with chromatographic resin screening and process optimization.  Experience with scale-up and GMP manufacturing is desirable.
  • Solid and proven working knowledge of DOE. Ability to critically analyze data using statistical tools and to compile technical reports
  • Excellent presentation and communication skills
  • Results-oriented with ability to work and deliver under pressure
  • Excellent English (written, oral) 
Additional Information

All your information will be kept confidential according to EEO guidelines.