Machine Learning Engineer, Personalization
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Job Location:
Monthly Salary:
Posted on:
23-10-2025
Vacancies:
1 Vacancy
Job Summary
About Wolt
At Wolt we create technology that brings joy simplicity and earnings to the neighborhoods of the 2014 we started with delivery of restaurant food. Now were building the delivery of (almost) everything and youll find us in over 500 cities in 30 countries around the 2022 we joined forces with DoorDash and together we keep on dreaming big and expanding across the globe.
Working at Wolt isnt always easy but its definitely exciting. Here youll learn more build more and ship more than in most other companies. Youll be challenged a lot but also have a lot of fun on the way. So if youre a self-starter with drive and entrepreneurial spirit this could be the ride of your life.
Wolts Personalization team is responsible for creating a tailored experience for Wolts customers across their shopping journey selecting the best restaurants dishes or items to match their culinary and shopping preferences across multiple premises such as Discovery In Venue or Checkout. The Personalization team owns the ML stack models and integrations that generate real-time recommendations for millions of customers across all Wolt markets. For example the team is responsible for the models that rank restaurants in Wolts Discovery and Restaurants tabs venues in Wolts Discovery and Stores tabs or items in Wolts in-venue and cart premises. It also personalises other components in Wolts shopping experience such as brands banners or food categories that are relevant entry points for our customers to explore Wolts assortment.
What youll be doing
Machine Learning (ML) Engineer in Wolts Personalization team you will:
Build the ML infrastructure to develop train and deploy Wolts ranking models that select the content to display to our customers;
Work end-to-end from use case design to implementation delivery and monitoring of your solutions;
Maintain our production ML stack and raise the teams ML engineering excellence bar;
Liaise with Wolts ML Platform team to adopt different ML technologies and to create technical requirements for their solutions;
Contribute to Wolt ML Engineering and Applied Science communities;
Be part of a cross-disciplinary team with Applied Scientists Software Engineers and Analysts to provide solutions to customer problems with a direct impact on the companys business KPIs;
Work at Wolts scale: Wolt operates in 32 different markets with millions of customers.
Our humble expectations
- You are experienced in end-to-end machine learning deployments and maintenance of ML systems and have at least 2 years of experience in ML/MLOps;
- You have deployed and ran ML models in production at scale maybe with hundreds of RPS and low latency;
- You bring solid experience in scaling solutions monitoring ML stacks and troubleshooting ML deployments to the table. You can help with the technical issues the teams encounter;
- You are experienced in implementing real-time inference ML models in production;
- Good understanding of ML and MLOps principles as well as Software engineering experience in Python should complete your profile;
- Experienced in Docker Kubernetes workflow orchestration tools (e.g. Flyte) model and experiment registries (e.g. MLflow) and model serving systems (e.g. Seldon);
- You have solid communication and collaboration skills and are experienced in coordinating initiatives with your team and main stakeholders.
What we offer
You will own and drive technical solutions within the ML engineering space for the Discovery Experience department ensuring they are robust scalable and aligned with business goals. With a strong ability to work independently youll take ownership from ideation through delivery.
Where Youll Work
This role can be based in one of our tech hubs in Berlin Helsinki or Stockholm or you can work remotely anywhere in Finland Sweden Germany. We are not able to offer remote contracts from another country.
Next steps
The position will be filled as soon as we find the right person so make sure to apply as soon as you realize you really really want to join us!
The compensation will be a negotiable combination of monthly pay and DoorDash RSUs. The latter makes it exceptionally easy to be excited about our company growing and doing well as youll own a piece of the pie.
Our Commitment to Diversity and Inclusion
Were committed to growing and empowering a more inclusive community within our company industry and cities. Thats 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.
Key Skills
- Industrial Maintenance
- Machining
- Mechanical Knowledge
- CNC
- Precision Measuring Instruments
- Schematics
- Maintenance
- Hydraulics
- Plastics Injection Molding
- Programmable Logic Controllers
- Manufacturing
- Troubleshooting
About Company
Wolt is a Helsinki-based technology company with a mission to bring joy, simplicity and earnings to the neighborhoods of the world. Wolt develops a local commerce platform that connects people looking to order food, groceries, and other goods with people interested in selling and deli ... View more
