Staff AI Software Engineer

Position Title: Staff AI Software Engineer

Location: Toronto, ON

About the Job

Are you ready to take your engineering expertise to the next level and help shape the future of healthcare? At Sanofi, we empower our people to learn, innovate, and make an impact. You’ll join a collaborative environment where your ideas matter, and your growth is supported by inspiring mentors and cutting-edge technology.

As a Staff AI Software Engineer on Sanofi’s R&D Data & AI Products and Platforms Team, you will play a pivotal role in driving our digital transformation. Our mission is to accelerate drug discovery and deliver better treatments to patients faster by leveraging AI at scale.

This position is a cornerstone of Sanofi’s AI-first strategy, focused on building enterprise-grade Data & AI products for R&D use cases. We aim to democratize data access and scale AI/ML capabilities across the organization, enabling scientists and researchers to unlock insights that were previously out of reach.

What You'll Do

• Provide technical leadership and architectural vision for multiple complex AI initiatives.
• Use your expertise to help reduce technical dependencies, establish engineering standards, and mentor junior engineers, ensuring we deliver scalable, high-quality solutions.
• Help execute our ambitious roadmap for 2026 and beyond, supporting key innovation “leapfrogs” that will redefine how we discover and develop medicines.
• Directly contribute to building the technical foundation that powers Sanofi’s long-term success in an increasingly AI-driven R&D landscape

Our Vision for Digital, Data Analytics and AI

• AI Factory: Cross-functional pods delivering AI products with cutting-edge technology and agile methodologies
• Leading Edge Tech Stack: Build globally deployed products on modern cloud infrastructure
• World Class Development: Work with renowned ML leaders and continuous learning opportunities

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.

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Main Responsibilities

Technical Leadership & Strategy

• Lead architectural design of enterprise-scale AI/ML products across multiple R&D use cases
• Drive technical strategy and roadmap planning with significant autonomy in decision-making
• Establish engineering standards and best practices across AI/ML product development teams

AI/ML Product Engineering

• Engineer end-to-end AI/ML products including workflows, APIs, databases, and user interfaces
• Architect scalable data pipelines and system integrations for high performance and reliability
• Oversee deployment and scaling of AI/ML models on cloud platforms

Team Leadership

• Lead and mentor small engineering teams with technical guidance and career development
• Collaborate with Product Owners and stakeholders on capacity planning and technical risk assessment
• Foster culture of engineering excellence and continuous improvement

Cross-Functional Influence

• Partner with senior stakeholders to translate business requirements into technical solutions
• Influence product strategy through technical expertise and AI/ML capabilities knowledge
• Drive alignment across multiple product teams on technical approaches and shared infrastructure

About You

Experience & Leadership

• Bachelor's required. Master's preferred
• +7 years experience of AI/ML product engineering experience with proven track record of complex, production-grade systems
• Demonstrated experience leading small engineering teams and mentoring junior/mid-level engineers
• Proven ability to drive technical strategy and influence cross-functional stakeholders

Technical Expertise

• Advanced proficiency with SQL, Python, Java, AWS, Snowflake, data analytics tools
• Expert-level experience designing and scaling APIs/Endpoints (Flask, Django, FastAPI)
• Deep expertise in cloud platforms (AWS, Azure, GCP) and AI/ML model deployment infrastructure
• Strong experience with CI/CD, containerization (Docker, Kubernetes), and MLOps practices

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.​

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 diversity and inclusion. Our goal is to attract, develop and retain highly talented employees from diverse backgrounds, 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.

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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.

Toute compensation sera déterminée en fonction de l'expérience démontrée. Les employés peuvent être admissibles à participer aux programmes d'avantages sociaux de l'entreprise. Des informations supplémentaires sur les avantages sociaux peuvent être trouvées ici.