
R&D
Where your curiosity drives the
miracles of
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Senior Associate Scientist, Ocular In Vivo Translational Sciences
At a glance
Bring your curiosity to a team where deep immunoscience meets cutting-edge innovation. Across oncology, rare diseases, neurology, and vaccines, you’ll work at the intersection of lab science and AI-powered discovery — all while collaborating across boundaries to turn breakthrough ideas into real-world impact. Whether you want to deepen your scientific expertise or grow as a leader, you’ll find the opportunity here.
Job Title: Senior Associate Scientist, Ocular In Vivo Translational Sciences
Location: Cambridge, MA
About the Job
Are you ready to shape the future of medicine? The race is on to speed up drug discovery and development to find answers for patients and their families. Your skills could be critical in helping our teams accelerate progress.
We are seeking a talented Senior Associate Scientist to join our innovative Ophthalmology Research team at Sanofi.
In this role, you will execute in vivo ocular studies, perform specialized molecular and histological analyses, and contribute to the development of innovative therapies for vision-threatening diseases. As part of our cutting-edge research efforts, you will work on preclinical studies that drive the development of novel ocular therapies from early discovery through IND-enabling stages. This position offers hands-on experience with state-of-the-art techniques in ocular research, with direct impact in ophthalmology drug development.
We are an innovative global healthcare company with one purpose: to chase the miracles of science to improve people’s lives. We’re also a company where you can flourish and grow your career, with countless opportunities to explore, make connections with people, and stretch the limits of what you thought was possible. Ready to get started?
Main Responsibilities
Execute in vivo ocular studies in rodent models, including performing various ocular dosing procedures (intravitreal, intracameral, suprachoroidal, subretinal, topical, systemic)
Conduct molecular analyses including digital PCR, ELISA, and Western blotting on ocular tissues and fluids
Process ocular tissues and perform sophisticated histological techniques on sections and flat mounts, including immunohistochemistry with ocular markers
Operate and maintain automated platforms for molecular and histological assays, ensuring quality control and reproducibility
Perform ocular imaging techniques (OCT, fundus photography, ERG, IOP, OKR) to monitor disease progression and treatment effects
Analyze experimental data, interpret results, and prepare technical reports for team review
Maintain detailed experimental records and contribute to documentation for regulatory submissions
Present findings at team meetings and contribute to scientific discussions
Collaborate with cross-functional teams to advance ophthalmology research programs
About You
Earned Bachelor’s degree and 4+ years of relevant experience in an academic or biopharmaceutical setting OR Master’s Degree +1 year of relevant experience in an academic or biopharmaceutical setting.
Demonstrated experience with molecular biology techniques (dPCR, ELISA, Western blotting) and histological methods
Experience working with laboratory animals (rodents), animal handling, colony maintenance, dosing via different RoA, tissue collections.
Ability to independently execute complex protocols with precision and troubleshoot technical issues
Strong data analysis and visualization skills using relevant software (Excel, GraphPad, ImageJ)
Excellent documentation practices and attention to detail
Strong written and verbal communication skills with ability to present technical information clearly
Demonstrated ability to work both independently and collaboratively in a fast-paced research environment
Preferred Qualifications
Basic understanding of ocular anatomy, physiology, and pathology
Experience working with rodent ocular in vivo models
Experience in ocular drug delivery in rodents and collection of ocular tissues via dissection.
Experience in the assessment of ocular phenotypes ERG, OCT, OKR, IOP, fundus imaging
Experience in immunohistochemistry, and basic imaging techniques
Skills and competencies
Ability to work in a highly collaborative and matrixed environment
Ability to learn new techniques, multi-task and adapt to rapidly changing priorities and deadlines
Excellent written and oral communication skills, with the ability to communicate effectively in a multidisciplinary team
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.
Sanofi Inc. and its U.S. affiliates are Equal Opportunity and Affirmative Action employers committed to a culturally diverse 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.
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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.
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Pursue Progress. Discover Extraordinary.
Join Sanofi and step into a new era of science - where your growth can be just as transformative as the work we do. We invest in you to reach further, think faster, and do what’s never-been-done-before. You’ll help push boundaries, challenge convention, and build smarter solutions that reach the communities we serve. Ready to chase the miracles of science and improve people’s lives? Let’s Pursue Progress and Discover Extraordinary – together.
At Sanofi, we provide equal opportunities to all regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, protected veteran status or other characteristics protected by law.
Watch 'One day at Sanofi' and check out our Diversity Equity and Inclusion initiatives at sanofi.com

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Why work with us
- Expand your horizons. Grow through curiosity, with support to move, learn, and lead in a culture that champions mentorship, mobility, and bold development.
- Accelerate results with technology. Harness the power of AI and automation to push scientific boundaries and reimagine what's possible in drug discovery.
- Impact through inclusive innovation. Help deliver better science and fairer outcomes by driving inclusive research that reaches more people, in more meaningful ways.
- Turn patient needs into breakthrough science. Drive scientific breakthroughs that start with patient needs – and end in treatments that change lives.
Meet Nils Libert, Associate Scientist
Meet Nils Libert, an Associate Scientist in Belgium, where he plays a key role in advancing groundbreaking research. Learn how his work helps drive innovation, uncover new scientific possibilities, and contribute to life-changing treatments that impact patients around the world.

"At Sanofi, we are building an R&D engine powered by the best science, digital innovation, and a commitment to transforming the lives of patients around the world."

Houman Ashrafian
EVP & Head of R&D
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