Senior Team Leader - Data Science

Ready for a challenge?

Whether it’s a Friday-night feast, a post-gym poke bowl, or grabbing some groceries, our tech platform connects tens of millions of customers with hundreds of thousands of restaurant, grocery and convenience partners across the globe.

About this role:

This is more than a management role; it's a leadership opportunity. You will lead a diverse team of Data Scientists and Operations Research Scientists across Europe and North America, acting as the primary architect of their culture. Your mission is to build an environment of high psychological safety where curiosity and experimentation thrive, and where intelligent failures are celebrated as learning opportunities. You will be the coach and mentor who guides the team through the inherent ambiguity of research and discovery, empowering them to tackle immense technical challenges and deliver extraordinary results while building a cohesive, collaborative unit that transcends geographic boundaries.

You won't do this alone. You will act as a key strategic partner to Product and Engineering, translating high-level business goals into a clear, actionable technical roadmap for your team. You will be the bridge between the business and the technical world, connecting with and influencing stakeholders to ensure your team's work is aligned with our business goals, while championing our commitment to responsible innovation and ensuring that principles of fairness and ethical AI are at the core of everything your team creates.

What will you bring to the team?

Hard skills:

• Technical Expertise: Advanced proficiency in data science, machine learning, and/or operations research methodologies, with extensive experience applying these techniques in production environments.

• Project Leadership: Proven experience leading complex technical projects, with a track record of successfully evolving existing systems and innovating with new solutions.

• MLOps & Modern Practices: Strong understanding of modern data science and MLOps practices, including model lifecycle management, experimentation, and CI/CD.

• Core Programming & Software Craftsmanship: Proficiency in Python and SQL, with a strong grasp of software development best practices (testing, git, code reviews).

• Real-Time Systems Experience: Experience with real-time data integration and machine learning frameworks is highly beneficial.

• Modern AI Acumen: Familiarity with the principles and applications of modern AI, including Large Language Models (LLMs) and generative AI, is a strong plus.

• Domain-Specific Knowledge: A solid understanding of forecasting techniques is required; experience with mathematical optimization is a strong plus.

Soft skills:

• Exceptional leadership and mentorship skills: A genuine passion for cultivating talent. You have a proven track record of developing team members through coaching and creating clear, compelling career paths for both individual contributors and future managers.

• A constructive and resilient mindset: The ability to step into a complex situation, create clarity, and drive a team towards a clear and ambitious goal.

• Intellectual Humility: A confident awareness of your own limitations and the ability to lead a team of deep experts. You foster a meritocracy of ideas and are comfortable saying "I don't know."

• A holistic project approach: The ability to manage technical debt, stakeholder expectations, and long-term strategic roadmaps.

• Strong critical analysis: The ability to analyze technical approaches, assumptions, and business impact, with the drive to make tough decisions and find simple, effective solutions.

• Expertise in agile and remote-first environments: Exceptional collaborative skills are a must.

• Excellent communication skills: The ability to advise, challenge, and influence senior stakeholders.

At JET, this is on the menu:

Our teams forge connections internally and work with some of the best-known brands on the planet, giving us truly international impact in a dynamic environment.

Fun, fast-paced and supportive, the JET culture is about movement, growth and about celebrating every aspect of our JETers. Thanks to them we stay one step ahead of the competition.

Inclusion, Diversity & Belonging