Sanofi Vaccines US Inc. Posted August 12, 2026

mRNA Analytical Development Scientist - Analytical Sciences

Waltham, United States Full time
Manufacturing & CMC

Sanofi Vaccines US Inc. is the source of truth for this posting and owns the application process. We surface normalized context and market comparison you won't find on the original listing.

About this opportunity

Job title: mRNA Analytical Development Scientist - Analytical Sciences

Location: Waltham, MA

About the job

In order to strengthen the Biochemical and Biophysical group in R&D Analytical Sciences Department, Sanofi Pasteur is looking for a skilled and highly motivated individual to develop novel methods and improve characterization of mRNA vaccines in development by working closely with the bioprocess development group.

Analytical Sciences Department has the overall responsibility to develop, qualify and validate robust analytical methods to support release and characterization testing of mRNA Drug Substances and Drug Products candidates in development.

In the race for the future of healthcare – Sanofi mRNA Center of Excellence

At Sanofi, we believe in a world in which no one suffers or dies from vaccine-preventable diseases. The pandemic has sustainably transformed our industry, creating new opportunities and challenges. At Sanofi, we are convinced that accelerating the innovation of mRNA technology means better vaccine accessibility for all populations, faster than before.

For this reason, we are looking for bold, optimistic collaborators for our new team at the mRNA Center of Excellence. We are investing €400 million in this brand new centre, where 400 employees dedicated to this technology work.

This center of excellence is proof of our commitment to the development and acceleration of vaccination and research resources with the R&D, digital and CMC teams.

The future of Sanofi depends on your ambition, your commitment. Join.

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.

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 and are supported and enhanced through our diverse portfolio of medical device and diagnostic products. Together, we chase the miracles of science to improve people’s lives.

Main Responsibilities:

Develop advanced technology for biochemical and biophysical assay development, primarily focusing on LC-MS characterization, in support of mRNA vaccine process and product development, product release, stability, and comparability study.

Work with analytical leads supporting CMC activities.

Write and review method documentation and characterization reports in support of regulatory filings.

Ensure timely completion of assignments and deliverables. Independently design and execute complex experiments under general supervision.  Author method development and investigation reports.

Support QC and/or CROs on investigations, deviations, and change control.

Participate internal non-GMP and GMP lab set up and product release and stability testing.

Provide training to junior team members.

Compliant to Sanofi Quality standards and HSE policy. Participate in continuous improvement of laboratory safety and quality compliance.

About you

Basic Qualifications

PhD or Master's degree (MSc) in Analytical Chemistry, Biochemistry, Biotechnology, or related sciences

PhD holders: Minimum 1 year of pharma/biotech industry experience in analytical development and/or quality control

MSc holders: Minimum 4 years of pharma/biotech industry experience in analytical development and/or quality control

Expertise and extensive hands-on experience in the analyses and characterization of proteins, oligonucleotides, lipids and their degradants using LC-MS.

Ability to perform complex method development and propose appropriate method improvement.

Preferred Qualifications

Hands-on experience and comprehensive knowledge in other biochemical and biophysical techniques, including but not limited to LC (RP, IEX, SEC, HILIC), CGE, cIEF, spectroscopy, particle analysis, etc.

Knowledge of nucleic acid/oligonucleotides chemistry and standard analytical methods of these molecules.

Experienced in working with highly technical projects with reactivity.

Skills and Competencies

Excellent verbal and written communication skills.

Able to work independently and collaborate in a team; enthusiastic and self-motivated. Agility to respond to urgent requests, and initiative to lead new tasks.

Ability to work full time onsite in an analytical lab environment.

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.

Be part of a pioneering biopharma company that engages patients early in drug development and uses their insights to design studies that reflect real-world needs.

Help improve the lives of millions of people globally by making drug development quicker and more effective.

Work at the forefront of drug discovery, harnessing cutting-edge AI, data, and digital platforms to push the boundaries of science.

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.

#GD-SP

#LI-SP

#mRNA

#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.

At Sanofi, we provide equal opportunities to all regardless of race, colour, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, ability or gender identity.

Watch our ALL IN video and check out our Diversity Equity and Inclusion actions at sanofi.com !

US and Puerto Rico Residents Only

Sanofi Inc. and its U.S. affiliates are Equal Opportunity and Affirmative Action employers committed to a culturally inclusive and diverse workforce. All qualified applicants will receive consideration for employment without regard to race; color; creed; religion; national origin; age; ancestry; nationality; natural or protective hairstyles; 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:

$85.500,00 - $123.500,00

All compensation will be determined commensurate with demonstrated experience. Employees may be eligible to participate in Company employee benefit programs. Additional benefits information can be found through the LINK .

Job details

Seniority
Not listed
Function
Manufacturing & CMC
Therapeutic area
Not listed
Location
Waltham, United States
Employment type
Full time

How this role compares

Computed from every other active Manufacturing & CMC role in our database, not just this employer's listings.

We currently track 1527 comparable Manufacturing & CMC roles across 125 biopharma companies.

1527Comparable roles tracked
1434Currently active
125Companies hiring similar roles
44Countries represented

Salary context

456 of 1527 peers report a salary range (USD, annualized)

Peers share this role's job function. This posting doesn't list a seniority level, so peers aren't narrowed by seniority either -- the range below may span more levels than usual.

This roleSubject Not listed on this posting
Lowest disclosed · Senior Scientist II – CMC Developmental Sciences · AbbVie $0/hr – $0/hr (≈ $0–$0/yr)
Peer group range $0 – $540,400 (median $140,000)

Where these roles are based

Top locations among the 1527 comparable roles

United States781
India104
Germany74
Singapore67
France64
Ireland54

+ 38 more countries

Seniority mix

705 of 1527 peers have a known seniority level

Senior251
Manager165
Principal79
Associate68
Director64
Associate Director44
Senior Director21
Intern/Fellow/Postdoc8
Executive/VP5

Therapeutic area mix

7 of 1527 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Vaccines & Infectious Disease6
Oncology1

Similar opportunities

The closest matches from our peer group, ranked by how similar they are, not how well you'd qualify for them -- treat this as market context, not a guaranteed shortlist; a weak match is labeled as one below.

40%similar
Alexion New Haven, Connecticut, United States of America
Same function Same country
40%similar
AstraZeneca Cambridge, Massachusetts, United States of America Director
Same function Same country
40%similar
Alexion New Haven, Connecticut, United States of America
Same function Same country
40%similar
40%similar
Lilly Boston, Massachusetts, United States of America Associate
Same function Same country
40%similar
Lilly Indianapolis, Indiana, United States of America Senior Director
Same function Same country

How we calculate "similar"

No black box, no LLM guesswork: a deterministic score built from four normalized attributes. Here's this role's own peer group at different match levels, so you can see the mechanism, not just the result.

Every comparison starts from the same 100-point budget: 25 for working in the same function, 40 for the same therapeutic area, 20 for the same or adjacent seniority, 15 for the same country. A dimension we can't confirm on both sides contributes nothing, never a guess, never a free pass.

40%
Scientist II, LC Development, Biologics Analytical Development
Alexion · New Haven, Connecticut, United States of America · Seniority not listed
Function Therapeutic area Seniority Country
40%
Director, Global Regulatory Affairs – Chemistry, Manufacturing and Controls (CMC), Platform Innovation – Synthetic Peptides and Oligonucleotides
Lilly · Indianapolis, Indiana, United States of America · Director
Function Therapeutic area Seniority Country
40%
Senior/Principal Scientist, Bioprocess Purification Development
Lilly · Indianapolis, Indiana, United States of America · Principal
Function Therapeutic area Seniority Country
40%
Senior Principal Scientist - Bioanalytical Research
Lilly · Louisville, Colorado, United States of America · Principal
Function Therapeutic area Seniority Country
Unmatched or unknown dimensions score exactly the same: 0 points, never a partial guess. A role we know almost nothing about beyond its function bottoms out at 25%; it never inflates to 100% just because there's little to compare against. Seniority uses a defined ladder (Associate → Manager → Associate Director → Senior → Principal → Director → Senior Director → Executive/VP) so "Director" and "Senior Director" count as adjacent, but "Director" and "Executive/VP" do not.