Sponsorship verdict
Sponsorship possible
One solid signal, not two. Worth applying, and worth asking about sponsorship early.
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✓
Employer is on a government sponsor recordThe US Department of Labor certified 47 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first.
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The posting doesn’t mention sponsorshipSilence isn’t a refusal — ask the recruiter before investing much time.
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No salary bar for this routeH-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area.
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✓
What Sanofi US Services INC paid sponsored hires in similar roles4 certified filings for “Scientist, Disease Data Analytics” (Molecular and Cellular Biologists) in MA: $92k–$135k, median $103k.
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Confirmed live todayWhen a source last listed this job as open.
Details and sources
- Employer is on a government sponsor record
- The US Department of Labor certified 47 H-1B/E-3 labor condition applications for this employer between Oct 2025 and Jun 2026 (latest Jun 2026) — the step every H-1B hire needs first. Source: LCA disclosure data (US Department of Labor (OFLC)).
- No salary bar for this route
- H-1B has no fixed salary bar: the employer must pay at least the prevailing wage for the role and area. Cap-subject employers enter a lottery weighted by wage level. Source: https://www.federalregister.gov/documents/2025/12/29/2025-23853/weighted-selection-process-for-registrants-and-petitioners-seeking-to-file-cap-subject-h-1b, rules effective 2026-02-27.
- What Sanofi US Services INC paid sponsored hires in similar roles
- 4 certified filings for “Scientist, Disease Data Analytics” (Molecular and Cellular Biologists) in MA: $92k–$135k, median $103k. Most were filed at wage level II (50%) — 2 lottery entries, ≈31% projected selection odds for cap-subject employers. Source: US Department of Labor LCA disclosure data (Oct 2025 – Jun 2026).
US H-1B: cap-subject employers enter a lottery weighted by wage level — Level I gets 1 entry, Level IV gets 4 (DHS projected selection odds ≈15% at Level I to ≈61% at Level IV). Universities and non-profit research employers are cap-exempt. The $100,000 fee for new petitions from abroad is currently blocked by a court order (appeal pending).
A verdict summarises public evidence. It is not legal advice and never a guarantee: the employer and the immigration authority decide. Sign in to factor in where you can already work.
About the role
Job title: Process modelling (Protein/Antigen) Principal Data Scientist
Location: Waltham, MA
About the Job
As Principal Data Scientist within our Process Modeling – Vaccines R&D Data & Computational Science team, you'll lead the development of AI, machine learning, and hybrid modeling solutions that accelerate the future of recombinant protein vaccine manufacturing. Ready to get started?
Join the team protecting half a billion lives every year with next-gen science, mRNA innovation, and AI-driven breakthroughs. In Vaccines, you'll help advance prevention on a global scale - and shape the future of immunization.
Join the engine of Sanofi's mission — where deep immunoscience meets bold, AI-powered research. In R&D, you'll drive breakthroughs that could turn the impossible into possible for millions. In this role, you'll work closely with process development, analytical, and manufacturing teams to improve process understanding and optimize performance across CHO cell culture, baculovirus expression systems, protein purification, and cell line development. You'll bring scientific rigor and computational innovation together to enable data-driven decisions that strengthen how we develop and manufacture life-saving vaccines.
About Sanofi
We're an R&D-driven, AI-powered biopharma company committed to improving people's lives and delivering compelling growth. Our deep understanding of the immune system – and innovative pipeline – enables us to invent medicines and vaccines that treat and protect millions of people around the world. Together, we chase the miracles of science to improve people's lives.
Main Responsibilities
• Lead the development and deployment of AI, machine learning, mechanistic, and hybrid modeling solutions to accelerate recombinant protein vaccine process development and manufacturing.
• Apply advanced analytics to identify critical process parameters, predict product quality, improve yield, and optimize process performance.
• Develop modeling solutions for upstream processes, including CHO cell culture, baculovirus and insect cell expression systems, and cell line development.
• Support optimization of downstream purification operations, including chromatography, filtration, and ultrafiltration/diafiltration, through data-driven and model-based approaches.
• Build and deploy digital twins, simulation tools, and decision-support frameworks to support process optimization, scale-up, technology transfer, and lifecycle management.
• Collaborate with process development, analytical sciences, manufacturing, and digital teams to integrate process knowledge and data into actionable insights.
• Provide scientific leadership and mentorship in AI, machine learning, data science, and process modeling across the organization.
About You
Basic Qualifications
Education
• Ph.D. in Chemical Engineering, Bioengineering, Biotechnology, Computational Biology, Data Science, Applied Mathematics, or a related scientific discipline
Experience
• 2+ years of relevant experience in the pharmaceutical industry
Preferred Qualifications
• Background applying data science, machine learning, and process modeling in biopharmaceutical, biologics, vaccine, or related development environments, including recombinant protein production and manufacturing.
• Expertise in AI, machine learning, multivariate data analysis, mechanistic and hybrid modeling, digital twins, process simulation, Bayesian optimization, and Design of Experiments, including model-based approaches.
• Experience supporting CHO cell culture, baculovirus expression systems, protein purification, and/or cell line development
• Proficiency in scientific computing and modeling platforms such as Python, R, MATLAB, JMP, gPROMS, GoSilico, or equivalent tools
• Stron
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