Senior Administrative Assistant

Job Title: Senior Administrative Assistant

Location: Morristown, NJ

About the Job

The Senior Administrative Assistant will report directly to the Global Head of Scientific Communications, Publications & Medical Education for the Alliance Immunology Franchise. Operating within a complex, global organization, this role provides comprehensive, independent administrative support across a dynamic and fast-paced environment where priorities shift quickly and precision matters.

The ideal candidate brings exceptional organizational ability, strong written and verbal communication skills, and the highest level of discretion in handling confidential information. This role requires someone who is proactive and self-directed - capable of managing multiple concurrent priorities across time zones, engaging with a broad global stakeholder landscape, and delivering seamlessly in support of both the Global Head and the broader team.

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:

Calendar & Travel Management

Provide comprehensive calendar management across multiple time zones, coordinating complex scheduling for the Global Head and team; arrange domestic and international travel, including multi-city itineraries, and ensure timely and accurate expense reporting in accordance with company policies.

Meeting & Event Coordination

Plan and execute logistics for internal and external meetings, multi-day workshops, and team-building events, managing all details from venue coordination to materials preparation and follow-up.

Communications & Documentation

Manage diverse communications including email correspondence, department announcements, presentations, business documents, and internal communications platforms; compile and format materials using MS Office and other corporate systems.

Team Operations Support

Provide day-to-day operational support to the team, coordinating shared deadlines, managing shared resources, and facilitating onboarding of new team members; maintain team distribution lists, org charts, and SharePoint/intranet resources.

Resource & Vendor Management

Manage procurement and vendor coordination for team needs, including subscriptions, supplies, and external meeting logistics.

Budget & Finance Support

Support budget tracking and purchase order processing in close coordination with the finance business partner.

Stakeholder Relations

Interface professionally with internal staff, senior executives, external partners, and consultants; respond to information inquiries in accordance with established guidelines while maintaining trusted, productive relationships across all levels.

General Operations

Independently manage special administrative projects and capture non-routine needs in real time; prioritize and execute tasks with minimal direction, tracking due dates to ensure timely completion across all workstreams.

About You

Qualifications & Requirements:

Experience & Education:

5+ years of administrative experience supporting senior leaders, preferably within a global pharmaceutical, biotech, or life sciences organization

Bachelor's degree or equivalent combination of education and relevant experience preferred

Technical Skills:

Strong aptitude for embracing and rapidly adopting new technologies, including AI-driven productivity tools, Microsoft Office Suite (Outlook, Excel, PowerPoint, Word, Teams, SharePoint), and other business applications to optimize workflows and enhance decision-making

Familiarity with travel management systems and expense reporting platforms (e.g., Concur)

Experience with procurement and purchase order systems a plus

Core Competencies:

Exceptional organizational skills with strong attention to detail

Demonstrated ability to manage competing priorities in a fast-paced, global environment

Strong written and verbal communication skills

High degree of professionalism and discretion in handling sensitive and confidential information

Ability to work independently, take initiative, and anticipate needs before they arise

Comfort with ambiguity and the ability to adapt quickly to shifting priorities

Collaborative team player with a positive, solutions-oriented mindset

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 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.

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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:

$31.32 - $41.76

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 .