Demo

Principal Scientist/Associate Director, Bioanalytical Sciences

Upstream Bio
Waltham, MA Full Time
POSTED ON 4/16/2026
AVAILABLE BEFORE 5/15/2026

Position Summary:

The translational Sciences group at Upstream Bio is looking for a Principal Scientist/Associate Director, Bioanalytical Sciences who will lead the development and implementation of critical bioassays to support development programs and provide scientific and operational oversight of bioanalytical sample analyses.


You will represent the Bioanalytical function on cross-functional project teams. In partnership with project teams, you will provide bioanalytical scientific and operational leadership to drive robust and timely decision-making through all stages of clinical development.


Key Responsibilities:

  • Provide leadership and represent the bioanalytical group on project teams, oversee assay development/validation/performance monitoring at CROs, and ensure on-time, high-quality delivery of data and reports supporting drug development.
  • Coordinate CRO and vendor selection (e.g., quote, capability assessments, site audits), oversee contracts/SOWs process.
  • Review and approve bioanalytical protocols, reports, and related documentation.
  • Manage timelines for delivery of assays, data, and reports to support clinical studies and regulatory submissions.
  • Ensure that work is completed with appropriate quality according to regulatory standards and guidelines.
  • This person should be aware of the latest regulatory guidelines for bioanalytical assays.


If interested, the position will provide an opportunity to:

  • Develop and oversee execution of bioanalytical strategy to ensure the scientific quality of data meets regulatory and scientific requirements.
  • Gain experience in developing exploratory biomarker assays.
  • Opportunity to learn and develop appropriate laboratory manuals, prepare bioanalytical sections of regulatory documents, and respond to agency inquiries.


Qualifications:

  • PhD or M.S. degree in Immunology, Molecular Biology, Biochemistry, or related discipline with 4 years of industry experience (6 for M.S. degree) in bioanalytical method development, validation, and sample analysis in a regulated environment.
  • Title commensurate with experience.
  • Strong scientific background and in-depth technical expertise on the development, troubleshooting, and validation of bioanalytical assays for biological compounds (ELISA and MSD based).
  • Subject matter expert in analytical platforms. Experience developing and implementing PK, antidrug antibody, and neutralizing antibody assays for antibody-based therapeutics.
  • Experience in successful development and execution of clinical bioanalytical assays implemented from early to late phase clinical programs.
  • Current knowledge of regulatory guidelines related to qualification and validation of bioanalytical assays.
  • Knowledge and experience with budgeting and resource allocation is preferred.
  • Excellent interpersonal, leadership, communication, and time-management skills.
  • Desire to work within a fast-paced, innovative, and collaborative environment.


About Upstream Bio:

Upstream Bio is a public company based in Waltham, MA.

We are a clinical-stage biotechnology company developing treatments for inflammatory diseases, with an initial focus on severe respiratory disorders. We are developing verekitug, the only known antagonist currently in clinical development that targets the receptor for thymic stromal lymphopoietin (TSLP), a cytokine which is a clinically validated driver of inflammatory response positioned upstream of multiple signaling cascades that affect a variety of immune mediated diseases. Upstream Bio has advanced this highly potent monoclonal antibody into separate Phase 2 trials for the treatment of chronic rhinosinusitis with nasal polyps (CRSwNP), severe asthma and chronic obstructive pulmonary disease (COPD). Our team is committed to maximizing verekitug’s unique attributes to address the substantial unmet needs for patients underserved by today’s standard of care. To learn more, please visit www.upstreambio.com.


Compensation

Target Salary Range: $171,000 - $209,000

*Base Compensation for this role will depend on a number of factors including a candidate’s qualifications, skills, competencies, and experience. Base pay is only one component of the company’s total rewards package. All regular employees are also eligible for the corporate bonus program or the incentive compensation program (if applicable), as well as equity. Additional benefits include health care, vision, dental, retirement, PTO, etc.

Salary : $171,000 - $209,000

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Upstream Bio

  • Upstream Bio Waltham, MA
  • Position Summary: The Associate Director, Quality Control will be responsible for providing strategic, scientific, and operational leadership for the devel... more
  • 12 Days Ago

  • Upstream Bio Waltham, MA
  • Position Summary: Upstream Bio is developing innovative therapeutics in inflammation. We are a nimble company with solid financial backing from high-qualit... more
  • 13 Days Ago

  • Upstream Bio Waltham, MA
  • Position Summary: Upstream Bio seeks a resourceful, data-driven and integrative thinker to drive the planning and execution of fully-outsourced clinical tr... more
  • 14 Days Ago

  • Upstream Bio Waltham, MA
  • Position Summary: The Quality Manager (GMP) will be responsible for performing and managing day-to-day activities surrounding manufacture, testing and disp... more
  • 6 Days Ago


Not the job you're looking for? Here are some other Principal Scientist/Associate Director, Bioanalytical Sciences jobs in the Waltham, MA area that may be a better fit.

  • Novartis Cambridge, MA
  • Summary Senior Principal Scientist / Associate Director, PK Sciences, Therapeutic Areas (DUAL LEVEL POSTING) Location: Cambridge, MA or San Diego (US) We a... more
  • 6 Days Ago

  • Lila Sciences Cambridge, MA
  • About Lila Lila Sciences is the world’s first scientific superintelligence platform and autonomous lab for life, chemistry, and materials science. We are p... more
  • 19 Days Ago

AI Assistant is available now!

Feel free to start your new journey!