2,007,098open jobs
119,200companies
249,029added this week
Browse all
Salary
$101k – $145k per year
Location
In office (Waltham)
Seniority
Senior · 1+ year exp
Visa
H-1B filings in 12 months: 62 · for this role: 9
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Oct 26, 2026. Sanofi scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Sanofi is a French pharmaceutical company formed in 1973 and assembled over five decades through a long series of mergers including Synthelabo, Aventis and Genzyme. It is now built around immunology and rare disease, with Dupixent for atopic dermatitis and asthma as by far its largest product, alongside a substantial vaccines division covering influenza, meningitis and the respiratory syncytial virus antibody Beyfortus. Headquartered in Paris, the group has sharpened its focus in recent years by separating its consumer healthcare business into the standalone company Opella and directing research spending toward biologics and immune science.

Job title: PAT Senior Data Scientist

Location: Waltham, MA

About the Job

As Senior Data Scientist - Process Analytical Technology (PAT) within our Process Modeling - Vaccines R&D Data & Computational Science team, you'll turn real-time process and sensor data into the insights that keep vaccine manufacturing precise, predictable, and ready to scale. 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 immuno-science 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 build machine learning and chemometric models that give process development, manufacturing, and analytical teams real-time visibility into vaccine production, spanning mRNA, recombinant protein, and viral vector platforms. You'll work at the intersection of data science and bioprocessing, helping ensure every batch meets the quality that patients depend on.

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

  • Develop and deploy predictive models and monitoring tools that support real-time oversight of vaccine development and manufacturing processes.
  • Build predictive models and soft sensors for critical process parameters and critical quality attributes using process and analytical data.
  • Analyze data from spectroscopic and sensor-based monitoring tools, including Raman, near-infrared, infrared, and UV-visible technologies, across online, in-line, and at-line settings.
  • Apply multivariate analysis, machine learning, and statistical techniques to strengthen process understanding, performance, and product quality.
  • Partner with process development, manufacturing, analytical sciences, automation, and digital teams to bring these solutions into development and commercial manufacturing settings.
  • Support process characterization, scale-up, technology transfer, validation, and ongoing process verification through advanced data analysis.
  • Help shape strategy and best practices for real-time process monitoring across mRNA and non-mRNA vaccine platforms. About You Basic Qualifications Education
  • Ph.D. in Chemical Engineering, Bioengineering, Biotechnology, Analytical Chemistry, Data Science, Applied Mathematics, or a related scientific field.

Experience

  • 1+ years of relevant experience in the pharmaceutical industry or academia. Interns and co-ops will be considered.

Preferred Qualifications

  • Hands-on experience developing and applying real-time process monitoring, chemometric, machine learning, or data science solutions within biopharmaceutical, biotechnology, or vaccine development and manufacturing settings.
  • Expertise in chemometrics, multivariate data analysis, machine learning, and spectroscopy-based monitoring (Raman, near-infrared, infrared, UV-visible).
  • Experience developing calibration, prediction, classification, and soft sensor models using process and analytical data.
  • Proficiency in Python, SIMCA, SynTQ, or Unscrambler.
  • Strong problem-solving, communication, and collaboration skills across multidisciplinary teams.

Languages: Fluent English required.

Why Choose Us?

  • Bring the miracles of science to life alongside a supportive, future-focused team.
  • Discover endless opportunities to grow your talent and drive your career, whether it's through a promotion or lateral move, at home or internationally.
  • Enjoy a thoughtful, well-crafted rewards package that recognizes your contribution and amplifies your impact.
  • Take good care of yourself and your family, with a wide range of health and wellbeing benefits including high-quality healthcare, prevention and wellness programs and at least 14 weeks' gender-neutral parental leave.
  • Work at the forefront of drug discovery, harnessing cutting-edge AI, data, and digital platforms to push the boundaries of science.
  • Help improve the lives of millions of people globally by making drug development quicker and more effective.
  • Enjoy opportunities to collaborate beyond your area of expertise, working with diverse teams across science, clinical, and digital fields to spark new ideas and drive breakthroughs.

Sanofi US Services and its U.S. affiliates are Equal Opportunity employers committed to a culturally inclusive workforce. All qualified applicants will receive consideration for employment without regard to race; color; creed; religion; national origin; age; ancestry; nationality; marital, domestic partnership or civil union status; sex, gender, gender identity or expression; affectional or sexual orientation; disability; veteran or military status or liability for military status; domestic violence victim status; atypical cellular or blood trait; genetic information (including the refusal to submit to genetic testing) or any other characteristic protected by law.

#vhd

Pursue progress, discover extraordinary

Better is out there. Better medications, better outcomes, better science. But progress doesn’t happen without people - people from different backgrounds, in different locations, doing different roles, all united by one thing: a desire to make miracles happen. So, let’s be those people.

Sanofi US endeavours to make our career center accessible to any and all users. If you are experiencing difficulty and need assistance applying online, please call 1-866-SANOFI2 (1-866-726-6342) or click here

US and Puerto Rico Residents Only

Sanofi Inc. and its U.S. affiliates are Equal Opportunity employers committed to a culturally inclusive workforce. All qualified applicants will receive consideration for employment without regard to race; color; creed; religion; national origin; age; ancestry; nationality; marital, domestic partnership or civil union status; sex, gender, gender identity or expression; affectional or sexual orientation; disability; veteran or military status or liability for military status; domestic violence victim status; atypical cellular or blood trait; genetic information (including the refusal to submit to genetic testing) or any other characteristic protected by law.

North America Applicants Only

The salary range for this position is:

$100,500.00 - $145,166.66

All compensation will be determined commensurate with demonstrated experience. Employees may be eligible to participate in Company employee benefit programs, and additional benefits information can be found here.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,007,098 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Data Science
Similar stack
Same company
Waltham
≈ $77k – $146k per year (Estimated) · In office · Full-Time · 5+ years exp · Draper
SQL
Databases
MySQL
PostgreSQL
Oracle
Cassandra
DynamoDB
Azure SQL Database
DevOps
Terraform
Ansible
GCP
Azure
CI/CD
AWS
Kubernetes
Cybersecurity
GDPR
Analytics
ETL/ELT
Apply
Data Architect 1 day ago
$130k – $260k per year · In office · TS/SCI · Full-Time · Chantilly
Python
Java
SQL
Databases
PostgreSQL
Redis
Neo4j
DevOps
AWS
Analytics
ETL/ELT
Apache NiFi
Apply
≈ $130k – $258k per year (Estimated) · In office · 8+ years exp · Bachelor's Degree · Huntsville
Python
TypeScript
SQL
Databases
Snowflake
Cybersecurity
Least Privilege
Analytics
Power BI
ETL/ELT
Apply
$155k – $200k per year · Equity · Hybrid · Full-Time · 8+ years exp · Bachelor's Degree · Austin
Python
SQL
AI/ML
AI Agents
NLP
RAG
Machine Learning
DevOps
GCP
Azure
AWS
Management
Agile
Apply
≈ $113k – $215k per year (Estimated) · Hybrid · Contractor · 14+ years exp · Coquille
Python
TypeScript
SQL
Databases
PostgreSQL
pgvector
Pinecone
OpenSearch
AI/ML
LangChain
Claude
LlamaIndex
Embeddings
AI Agents
AWS Bedrock
RAG
Reranking
OpenAI Agents SDK
AWS Bedrock AgentCore
OCR
Semantic Search
DevOps
Terraform
GitHub Actions
AWS CDK
CI/CD
AWS
AWS Lambda
Amazon S3
IAM
AWS Step Functions
Analytics
AWS Glue
Apply
$122k – $177k per year · Hybrid · Full-Time · 2+ years exp · PhD · Waltham
Python
MATLAB
AI/ML
Machine Learning
Robotics
Digital Twin
Chips/EDA
JMP
Life Sciences
Cell Culture
Chromatography
Design of Experiments
Apply
≈ $73k – $176k per year (Estimated) · Hybrid · 3+ years exp · Waltham
Apply
≈ $59k – $116k per year (Estimated) · In office · Full-Time · 2+ years exp · Bachelor's Degree · Waltham
DevOps
Windows
TCP/IP
DNS
Apply
$102k – $160k per year · In office · 5+ years exp · Waltham
Apply
Operations Manager 6 hours ago
≈ $72k – $168k per year (Estimated) · In office · Full-Time · High School Diploma · Waltham
Apply
See all jobs
This is one of many
2,007,098 more open roles from verified company boards, updated every day.