Sanofi Vaccines Canada Ltd. Posted October 30, 2026

Medical Science Liaison - Vaccines (Maternity Leave)

Toronto, Canada Full time
Medical Affairs Medical Science Liaison jobs Vaccines & Infectious Disease
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Sanofi Vaccines Canada Ltd. 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

Reference number: R2875638

Position Title: Medical Science Liaison - Vaccines

Department: Canada Field Medical Vaccines

Location: Field Position (Ontario & Atlantic Canada)

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.

About the Job

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.

As Medical Science Liaison, Vaccines, within our Medical Affairs team, you will serve as a trusted scientific partner in the field for external experts and decision-makers, engaging in mutual scientific exchanges to accelerate data dissemination. This is a 1-year, temporary contract position supporting field medical coverage for the vaccines portfolio across Ontario and Atlantic Canada (New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland & Labrador), ensuring continuity of scientific engagement across these territories.

The MSL conducts timely, appropriate, and frequent scientific exchanges with key external experts; executes stakeholder engagement plans to gather data and develop medical insights; and keeps abreast of developments in vaccinology and infectious disease prevention to identify and assess research opportunities, while ensuring full compliance with company, industry, legal, and regulatory requirements.

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Main responsibilities:

Engage external stakeholders (KOLs, HCPs, public health officials, payers) on medical/scientific exchange for vaccines and vaccine-preventable diseases

Build and maintain peer relationships with Key Opinion Leaders and stakeholder partners across the territory

Plan and execute territory engagement strategies aligned with the Field-Based Medical Activity Plan

Represent Sanofi Medical at relevant scientific congresses/symposia; support speaker training and local advisory boards as needed

Gather, record, and report insights from stakeholder interactions to inform Sanofi's scientific messages and strategy

Collaborate with internal stakeholders (Medical Affairs, Medical Information, Commercial Operations, Regulatory Affairs)

Support evidence-generation activities, monitor disease epidemiology, and support investigator-sponsored study inquiries

Manage a defined stakeholder base across Ontario and Atlantic Canada, maintaining an engagement tracking database

Ensure proper documentation and handover of stakeholder relationships at the end of the contract term

About You

Required Qualifications:

Master's degree in a scientific, health, or medical field (MSc, PharmD, PhD, MD, or equivalent)

Valid driver's license, clean driving record, ability to pass background check

2+ years in pharmaceutical, clinical, or medical affairs industry preferred; MSL/field-based scientific engagement experience preferred

Strong scientific data interpretation and communication/presentation skills

Ideally resides in Ontario (Atlantic Canada candidates considered)

French language proficiency preferred in addition to English fluency, given bilingual territory coverage (notably New Brunswick)

Preferred Qualifications:

Strong stakeholder communication, diplomacy, and relationship-building skills

Knowledge of Canadian pharmaceutical/vaccines regulations and codes of practice, particularly non-promotional activity requirements

Strong scientific/therapeutic expertise and ability to translate stakeholder feedback into actionable insights

Familiarity with Canada's public health, immunization, and regulatory/payer landscape

Digital tool proficiency

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​

This position is for a new vacant role that we are actively hiring for.​

Applications received after the official close date will be reviewed on an individual basis.​

AI Usage

"Artificial Intelligence” refers to any systems that use automated processes, including algorithms and machine learning, to analyze data and make predictions, inferences, decisions, or recommendations without direct human involvement. These systems may process personal information to identify patterns, improve services, or support decision-making. The Company may use Artificial Intelligence for purposes including, but not limited to, resume screening and hiring, scheduling interviews or meetings, conducting surveys, matching skills with potential job openings, interview scoring, ensuring compliance with regulations applicable to our industry, and activities related to performance evaluation. Information collected and processed by the Company’s Artificial Intelligence systems may include the personal information detailed above and calendar availability. It excludes the information collected and processed for monitoring purposes. You should contact Human Resources if you have a question or concern regarding your personal information. You can also contact Canada’s Privacy Officer via Sanofi’s data subject request portal,   Data Subject Rights Webform . The  Data Subject Rights Webform  can also be used to request access or correction of your personal information and file a complaint.

Sanofi is an equal opportunity employer committed to culture, inclusion, and experience. Our goal is to attract, develop and retain highly talented employees, allowing us to benefit from a wide variety of experiences and perspectives. We welcome and encourage applications from all qualified applicants. Accommodations for persons with disabilities required during the recruitment process are available upon request.​

#GD-SP ​

#LI-SP​

#LI-Remote​

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 !

North America Applicants Only

The salary range for this position is:

108,900.00 - 157,300.00 Final compensation will be determined based on demonstrated experience, skills, location, and other relevant factors. Employees may be eligible to participate in Company employee benefits programs, and additional benefits information can be found through the (CA) LINK OR (US) LINK .

La fourchette salariale pour ce poste est la suivante:

108,900.00 - 157,300.00 La rémunération finale sera déterminée en fonction de l'expérience démontrée, des compétences, du lieu de travail et d'autres facteurs pertinents. Les employés peuvent être admissibles à participer aux programmes d'avantages sociaux de l'entreprise, et des informations supplémentaires sur les avantages sociaux peuvent être trouvées via le lien

Job details

Seniority
Not listed
Function
Medical Affairs
Therapeutic area
Vaccines & Infectious Disease
Location
Toronto, Canada
Employment type
Full time

How this role compares

Computed from every other active Medical Affairs role in our database, not just this employer's listings.

We currently track 1694 comparable Medical Affairs roles across 179 biopharma companies.

1694Comparable roles tracked
1596Currently active
179Companies hiring similar roles
64Countries represented

Salary context

375 of 1694 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 $108,900/yr – $157,300/yr
Lowest disclosed · 2027 Future Talent Program - Global Medical Affairs - Intern · Merck $39,908/yr – $111,111/yr
Peer group range $75,510 – $454,000 (median $215,000)

Where these roles are based

Top locations among the 1694 comparable roles

United States751
China178
Japan101
Germany69
India62
United Kingdom62

+ 58 more countries

Seniority mix

1039 of 1694 peers have a known seniority level

Senior269
Director252
Manager238
Associate Director86
Associate76
Senior Director39
Intern/Fellow/Postdoc38
Executive/VP26
Principal15

Therapeutic area mix

594 of 1694 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Oncology262
Neuroscience87
Rare Disease54
Immunology53
Cardiovascular / CVRM43
Dermatology & Aesthetics37
Respiratory22
Vaccines & Infectious Disease15
Gastroenterology13
Ophthalmology8

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.

65%similar
Pfizer Australia Pty Ltd Tokyo, Japan Associate Director
Same function Same therapeutic area
65%similar
Pfizer Pearl River, United States
Same function Same therapeutic area
65%similar
GlaxoSmithKline LLC Home Worker, United States Director
Same function Same therapeutic area
65%similar
Sanofi-Aventis Deutschland GmbH Berlin, Germany Intern/Fellow/Postdoc
Same function Same therapeutic area
65%similar
AstraZeneca Seoul, Korea, Korea, Republic of Senior
Same function Same therapeutic area
65%similar
Pfizer Japan Inc. Tokyo, Japan Manager
Same function Same therapeutic area

Notify me about similar jobs

Get an email when we spot other openings like this one – same job function, comparable seniority, roles you'd actually want to see.

Or follow a whole field: get every new Medical Science Liaison job in Canada, and choose locations and companies.

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.

65%
[R&D] Clinical Development Medical, Associate Director, Research and Development - Vaccines
Pfizer Australia Pty Ltd · Tokyo, Japan · Associate Director
Function Therapeutic area Seniority Country
65%
Pharmaziepraktikant*in im Bereich Medical Operations & Excellence Vaccines für Mai 2027
Sanofi-Aventis Deutschland GmbH · Berlin, Germany · Intern/Fellow/Postdoc
Function Therapeutic area Seniority Country
65%
Vaccines Franchise Medical Manager
Sanofi KK (Japan) · Tokyo, Japan · Manager
Function Therapeutic area Seniority Country
65%
Head of Vaccine / Infectious Disease Medical Affairs
GlaxoSmithKline K.K. · Akasaka, Japan · Seniority not listed
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.