Then Just Eat Takeaway.com might be the place for you. We’re a leading global online delivery platform, and our vision is to empower everyday convenience.
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
Within the Promotion and Optimisation department, as a Senior Data Scientist, you will drive the intelligence behind our marketing campaigns. Sitting at the intersection of advanced machine learning and commercial reality, you will build models that optimize offer allocation across millions of users and global markets.You will lead end-to-end data science and AI projects, from ideation and model design to production deployment. You will utilise causal inference, uplift modelling, optimisation techniques, and advanced LLM tools to solve complex marketing decisions.
Furthermore, you will act as a bridge between data science and the business, using causal measurement to evaluate the real-world impact of our strategies and proactively identifying new opportunities to improve promotion efficiency and customer experience. You will ensure our technical solutions are robust, scalable, and impactful.
These are some of the key components to the position:
- Project Leadership & Innovation: Take full ownership of complex DS projects, aiming high to spot ML opportunities that reduce wasted spend and drive order growth.
- Advanced Modeling & Optimisation: Develop models predicting incremental impact per user, offer, and market to drive excellence across all promotional strategies.
- AI Engineering & Production: Design and deploy scalable, production-grade code and ML pipelines integrated seamlessly into cloud infrastructure.
- Causal Inference & Experimentation: Apply causal inference methods and randomized controlled trials (RCTs) to measure true incremental impact across markets.
- Stakeholder Partnership: Act as a technical partner to leadership through close collaboration, translating complex model outcomes into clear business decisions.
- Mentorship & Best Practices: Champion high coding standards, conduct code reviews, and guide colleagues through technical roadblocks to help one another succeed.
What will you bring to the team?
- Proven experience as a Data Scientist, with a strong portfolio of delivering impactful projects in a commercial environment.
- Deep theoretical and practical knowledge of uplift modelling, causal inference (meta-learvers, treatment effect estimation), and experimentation (A/B testing, RCTs).
- Plus to have experience with optimisation techniques (budget-constrained allocation, knapsack problems), advanced AI tools and decision-focused learning.
- You are comfortable writing production-quality Python code. Experience with MLOps tools, containerisation (Docker), and orchestration (Airflow/Dagster) is essential.
- Experience with Cloud platforms (GCP/Vertex AI preferred, or AWS/SageMaker) and handling large datasets via SQL/BigQuery.
- A proactive mindset with the vision to spot new opportunities for data-driven improvements in promotional strategy and marketing investment.
- Experience in e-commerce, marketplace, on-demand delivery, or consumer-facing tech industries is a strong asset.
- Excellent communication skills, with the ability to explain complex AI concepts to non-technical stakeholders and influence decision-making.
At JET, this is how we play
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.
Being the best at what we do isn’t just about delivering on our strategy. It's a competition for something incredibly valuable – our customers' choice. Every time a customer decides where to order, they're picking a side.
At the heart of the JET Customer League are our values and behaviours. They guide every interaction, every decision, every innovation. These are the actions we need to perform consistently and brilliantly, to surpass the competition and earn our customers’ loyalty, again and again.
Fun, fast-paced and supportive, the JET culture is about movement, growth, helping one another to succeed and celebrating wins. By truly living our values and embodying our behaviours, we’re building a customer-first culture which enables us to stay one step ahead of the competition.
Inclusion, Diversity & Belonging
No matter who you are, what you look like, who you love, or where you are from, you can find your place at Just Eat Takeaway.com. We’re committed to creating an inclusive culture, encouraging diversity of people and thinking, in which all employees feel they truly belong and can bring their most colourful selves to work every day.
What else are we delivering?
Want to know more about our JETers, culture or company? Have a look at our career site where you can find people's stories, blogs, podcasts and more JET journeys.
Are you ready to join the team? Apply now!
#LI-PM1
Skills Required
- Proven experience as a Data Scientist delivering impactful commercial projects
- Strong theoretical and practical knowledge of uplift modeling
- Strong knowledge of causal inference, including meta-learners and treatment effect estimation
- Experience with experimentation, A/B testing, and randomized controlled trials
- Production-quality Python programming
- Experience with MLOps tools, Docker, and Airflow or Dagster
- Experience with cloud platforms, preferably GCP/Vertex AI or AWS/SageMaker
- Experience handling large datasets with SQL and BigQuery
- Strong communication skills and ability to explain AI concepts to nontechnical stakeholders
- Experience with optimization techniques such as budget-constrained allocation and knapsack problems
- Experience with advanced AI tools and decision-focused learning
- Experience in e-commerce, marketplace, on-demand delivery, or consumer-facing technology
What We Do
Just Eat Takeaway.com is a leading global online food delivery marketplace, connecting consumers and restaurants through our platform in 20 countries. Like a dinner table, working at JET brings our office employees and couriers together. From coding to customer service to couriers, JET is a fun, fast-paced and supportive place where you can be yourself. No day is the same. Our days are filled with new experiences. We see every challenge that comes our way as a chance to grow, both the business, and ourselves. We’re connected to millions of food-lovers, hundreds of thousands of connected partners and some of the best-known brands of the planet. When you take your seat here, you’ll find that a simple scribble on a napkin can turn into something seen by millions. Together we transform, create, reinvent and empower every food moment. As a leading online food tech company, JET brings together the stability of a global business, with the agility of a start-up. We got here by always staying one step ahead of the competition. So load up your plate with ideas that get you excited, because at JET everything is on the table. https://careers.justeattakeaway.com
