Sanofi Vaccines US Inc. Posted August 5, 2026

Senior Medical Writer - Vaccine

Swiftwater, United States Full time
Medical Affairs Vaccines & Infectious Disease Senior

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: Senior Medical Writer - Vaccine

Location: Swiftwater, PA

About the Job

The Senior Medical Writer is a member of the Clinical Team. He/she is responsible for the production of key documents related to Clinical Department and Global Medical Affairs activities (e.g., concept documents, protocol, CSR, IBs, Informed Consent Forms, expert reports/integrated summaries, CTD Modules 2 and 5, etc.) in line with the Company as well as external standards, e.g., regulatory requirements or guidelines.

The Medical Writing platform is within Clinical Programs. The Medical Writer reports to the Local Head of Medical Writing for mentoring, appraisal and training. He/she may be the representative of his/her function in one or several clinical teams according to the number of projects he/she has to manage. In this case, he/she is accountable to the Clinical Team Leader for all project issues.

The Medical Writer is a member of one or more clinical teams according to the projects he/she has been assigned. His/her role is to be the referent for his/her function within the team. He/she will be responsible for coordinating the writing of major documents to conduct trials of the projects. He/she has to work in close collaboration with other functions/members of the clinical team to achieve the correct writing of documents.

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.

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:

Is in charge of creating, writing, and coordinating concept documents, protocols, informed consent forms, and clinical study reports according to Sanofi Pasteur document standards, tools, and SOPs

Is in charge of creating, coordinating, compiling, and editing investigator brochures, updated licensure and renewal documents (clinical overviews, addendum to clinical overviews, CTD updates) according to Sanofi Pasteur standards, tools, and SOPs.

Is in charge of creating, writing, and coordinating CTD clinical summaries and overviews in line with Sanofi Pasteur document standards, coordinating the medical writing CTD activities (interaction with RA and other functions involved), and providing the CTD supportive activities within the medical writing department

Participates as a member of the clinical team accountable to the Clinical Team Leader for all project issues (role of referent medical writer)

Is involved in the peer-review and QC cross-check of documents produced by the Medical Writing platform and in the review of documents produced by other departments (such as SAP and CRF)

Contributes to the development of document templates and relevant SOPs. Represents the platform on committees and working groups within Clinical as requested

Provides mentoring support to less experienced colleagues and new Company staff members if needed

Provides project management of medical writing deliverables for a trial or project, including negotiating timelines, and identifying and escalating issues to both the clinical team and the local Head of Medical Writing

Is in charge of supervising subcontracted medical writing activities if needed.

May contribute to the updates of templates, SOPs, and other guides for Medical Writing.

About You

Basic Qualifications:

Advanced degree in Life Sciences or related field of study.

3 or + years of clinical and regulatory medical writing experience within a pharmaceutical company or clinical research organization (CRO).

Fluent English communication skills, verbal and written.

Professional background documenting an excellent understanding of and experience in clinical development including clinical study performance/methodology/ basic statistics and/or the regulatory environment.

Demonstrated strong interpersonal, time management and technical writing skills.

Excellent word-processing skills and experience with electronic document templates are required and other relevant applications (eg, Excel, Outlook, EndNote, Read Cube, Please Review).

Why   Cho ose 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 AI-driven research, smart manufacturing, and groundbreaking mRNA platforms that are redefining the future of immunology.

• Help protect half a billion people every year, contributing to one of the largest global vaccination efforts in healthcare.

• Develop your career with access to mentoring, international mobility programs, and opportunities to grow across four continents.

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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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:

$122,250.00 - $176,583.33

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
Senior
Function
Medical Affairs
Therapeutic area
Vaccines & Infectious Disease
Location
Swiftwater, United States
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 140 comparable Senior Medical Affairs roles across 44 biopharma companies.

140Comparable roles tracked
119Currently active
44Companies hiring similar roles
18Countries represented

Salary context

36 of 140 peers report a salary range (USD, annualized)

Peers share this role's job function and a matching or adjacent seniority level -- not necessarily the same therapeutic area or country.

This roleSubject $122,250/yr – $176,583/yr
Lowest disclosed · Associate Director-Medical Writer · Lilly $127,500/yr – $187,000/yr
Peer group range $157,250 – $258,000 (median $186,950)

Where these roles are based

Top locations among the 140 comparable roles

United States74
India12
China11
Taiwan10
Japan8
South Korea5

+ 12 more countries

Seniority mix

140 of 140 peers have a known seniority level

Senior96
Associate Director39
Principal5

Therapeutic area mix

60 of 140 peers have a known therapeutic area; the rest are genuinely unlabeled, not hidden

Oncology25
Rare Disease7
Neuroscience7
Dermatology & Aesthetics6
Vaccines & Infectious Disease5
Cardiovascular / CVRM5
Immunology3
Respiratory1
Ophthalmology1

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.

100%similar
Sanofi Vaccines US Inc. Morristown, United States Senior
Same function Same therapeutic area Same seniority Same country
90%similar
Sanofi Vaccines US Inc. Morristown, United States Associate Director
Same function Same therapeutic area Adjacent seniority Same country
85%similar
Pfizer Investment Co., Ltd. China Shanghai, China Senior
Same function Same therapeutic area Same seniority
85%similar
AstraZeneca Seoul, Korea, Korea, Republic of Senior
Same function Same therapeutic area Same seniority
75%similar
Pfizer Australia Pty Ltd Tokyo, Japan Associate Director
Same function Same therapeutic area Adjacent seniority
60%similar
AbbVie Los Angeles, CA Senior
Same function Same seniority 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.

100%
Senior Medical Study Leader- Vaccines
Sanofi Vaccines US Inc. · Morristown, United States · Senior
Function Therapeutic area Seniority Country
85%
(Sr.) MSL, Respiratory, Immunology & Infectious Diseases
AstraZeneca · Seoul, Korea, Korea, Republic of · Senior
Function Therapeutic area Seniority Country
60%
MSL/Sr. MSL, Psychiatry (Boston, MA)
AbbVie · Boston, MA · Senior
Function Therapeutic area Seniority Country
60%
Senior MSL l- Aesthetics Portfolio
AbbVie · Minneapolis, MN · Senior
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.