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Applied Scientist, Adtech

Data & Analytics

Helsinki, Finland

Full-time

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About Wolt

At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe.

Working at Wolt isn’t always easy, but it’s definitely exciting. Here you’ll learn more, build more, and ship more than in most other companies. You’ll be challenged a lot, but also have a lot of fun on the way. So, if you’re a self-starter with drive and entrepreneurial spirit, this could be the ride of your life.

Job description

Our Applied Scientists at Wolt design and deploy machine learning and applied science solutions that tackle some of our most complex business challenges. By leveraging advanced techniques like statistical analysis, machine learning, deep learning, and operations research, they enhance key processes across Wolt's platform and business operations, creating measurable impact in all 29 countries where we operate.

As an Applied Scientist, you’ll take ownership of use cases within a product development team—from identifying high-value opportunities to developing, prototyping, and deploying solutions, and ensuring they continuously improve in production. We work with a range of technologies, including Python, SQL, Flyte, MLflow, and Seldon Core, and always strive to optimize our workflows to support rapid experimentation and innovation.

We're seeking an Applied Scientist to join the AdTech group at Wolt, which owns the end-to-end advertising experience. Our mission is to help merchants and brands increase their visibility and drive more orders through impactful ad solutions. We’re currently expanding our offering to create a more personalized experience for end users by targeting more refined audiences, leveraging advanced personalization models, and strengthening our machine learning infrastructure. This includes building scalable, high-performance systems that enable Machine Learning powered solutions for delivering relevant and optimized ads. The Applied Scientist will be working in close collaboration with software engineers, product managers, designers, and analysts, developing algorithms and machine learning solutions, to power Wolt’s advertising capabilities.

📍This role can be based in one of our tech hubs in Helsinki, Berlin or Stockholm, or you can work remotely anywhere in Finland, Sweden or Germany.  Read more about our remote setup here. If you live outside of these countries - not to worry! We provide relocation support to help you make your way to Finland or Sweden.

Qualifications

We’re looking for an Applied Science enthusiast who is passionate about using data science to make a measurable impact. Here’s what we hope you bring:

  • Passion for Applied Science: You identify as a problem solver who loves leveraging data science and machine learning to drive business results and create real-world impact.
  • Expertise in Production-Level ML Solutions: You know what it takes to build robust, scalable models suitable for large-scale deployments. You’re comfortable managing the entire lifecycle of data science projects, from ideation through to production and ongoing maintenance.
  • Strong Foundations in ML and Statistics: You bring a solid educational background and practical skills in machine learning and statistics, enabling you to design reliable and meaningful solutions. Working experience with optimization is a big plus.
  • Engineering Excellence: You’re skilled in writing production-level code and following engineering best practices, ensuring your solutions are efficient, maintainable, and scalable.
  • Clear Communication and Drive: You can effectively communicate complex technical concepts to non-technical audiences, bridging the gap between data science and business needs. You can take ownership of initiatives and drive projects to conclusion while working with varied stakeholders.
  • Analytical Problem-Solving: You excel at breaking down complex business challenges into clear, solvable machine learning problems, and designing data-driven solutions to address them.

If you’re driven to make an impact through innovative machine learning solutions, we’d love to see how you can help us push boundaries!

Our Commitment to Diversity and Inclusion

We’re committed to growing and empowering a more inclusive community within our company, industry, and cities. That’s why we hire and cultivate diverse teams of people from all backgrounds, experiences, and perspectives. We believe that true innovation happens when everyone has room at the table and the tools, resources, and opportunity to excel.

Team

From insights to impact

Our data scientists partner closely with our business stakeholders and work on solving problems together. This means direct impact on our business.

The goal of our data team is to help us with truth-seeking and partner with Wolt’s teams on a deeper level, going beyond just providing data points or dashboards when requested. This way we can work together to find out if solutions our teams created really worked, why they worked and how they worked.

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How we work

We build beautiful products, the Wolt way

We like to do things well and move fast. Doing that requires less red tape and more trust. 

At Wolt, every product team has the resources, talent, and autonomy they need to deliver the task at hand. This way our teams stay close to their customers. They work how they see best, and in return, they’re responsible for seeking alignment and owning the outcome.

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Tech blog

What we’re working on

On this journey towards delivery of (almost) everything, we’re building a suite of products — from the systems powering our own Wolt Market stores, to our support tooling, and even fintech solutions.

Get a sneak peek into what we’re working on through our Wolt Tech blog, Wolt Tech Talks podcast, and more!

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Our culture

Our culture

At Wolt, you’ll learn more, build more, and ship more than in most other companies.

You’ll be challenged a lot, but also have a lot of fun on the way. All of which comes from working with passionate, caring, down-to-earth and super-smart people.

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Our people

“I’d say it’s a very exciting time to join Wolt. We’ve just tripled the size of our team over the past year. Joining at this point means that you get to truly grow together with the team and the business. Our growth brings with it many opportunities for our people.”

- Kshira, Head of International Analytics & Data Science

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Apply now

Basic information

Wolt Recruitment Privacy Statement *

Please review the Wolt Recruitment Privacy Statement and acknowledge.

How many years of industry experience do you have in the applied science/ML field? *
Do you have any previous experience working in the AdTech, Personalisation, Recommendations, or Search domains? *

Additional information

Wolt - Self-Identification Survey

To ensure that our hiring practices are fair and inclusive, we’re asking the following voluntary questions of the people who apply to work at Wolt. If you don't feel comfortable answering any question, you can select “I don't want to answer.”

Your responses to these demographic questions are secure and optional. Any voluntary data you provide will not be shared with anyone connected to your recruitment or hiring process. There will be no negative consequences if you don’t want to participate, if you only answer some questions, or if you select “I don’t want to answer” for any question. Any option you choose will in no way affect your opportunity to work at Wolt.

By answering questions below, you give us your consent to process and handle your answers anonymously, and help Wolt understand the diversity of the people it attracts to apply. For additional clarity, our privacy policy below explains how we collect and process your data in accordance with applicable data protection laws.

Attachments *

You're welcome to send us supporting docs, e.g. a resume and a cover letter. Please only submit PDF files.

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More about Wolt

At Wolt, we create technology that brings joy, simplicity, and earnings to the neighborhoods of the world. 

In 2015 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world.

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