Staff Engineer, Ml Platform

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Engineering

Helsinki, Finland

Full-time

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.

About the role

We’re looking for a Staff Engineer to join the ML Platform organization and lead the design and evolution of our Feature Engineering Platform. This team owns the foundational layer that connects data and ML workflows, and is central to our mission of making machine learning development seamless, accessible, and production-ready across the company.

As a Staff Engineer, you’ll shape the architecture and vision of a platform that enables users — from analysts to applied scientists — to explore, engineer, and deploy features with confidence and speed. You’ll work at the intersection of data infrastructure, developer experience, and ML operations, building systems that abstract complexity while ensuring scale, reliability, and strong user ergonomics.

What you’ll be doing
Design and drive the architecture for a unified feature engineering experience across batch, streaming, and online contexts.
Partner closely with UX, product-minded engineers, and ML practitioners to craft high-leverage abstractions.
Lead cross-cutting initiatives spanning dev environments, notebook integrations, data orchestration, and serving pipelines.
Embed platform reliability, observability, and data quality into the development lifecycle by default.
Mentor and uplift a team of engineers across different levels and domains.
Our humble expectations*
Proven experience designing and scaling complex data or ML platforms.
Experience in production ML, data engineering, and feature stores
Deep expertise in backend systems, APIs, and orchestration — bonus for exposure to Spark, Flink, or streaming data stacks.
Track record of shaping developer-facing interfaces or platforms with attention to usability and iteration speed.
Comfort leading technical strategy and aligning cross-team efforts.

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.

TeamTech blogHow we workOur cultureOur people
Engineering at Wolt

We build the technologies powering Wolt. Our apps connect millions of customers, hundreds of thousands of courier partners, and tens of thousands of shops and restaurants. We now operate in 30 countries, 500+ cities and we’re growing fast.

We build at scale, are laser-focused on building world-class customer experiences, and do things with heart. Dive with us into the complex problems of building the delivery of (almost) everything.

Engineering at Wolt
What we're working on

On this journey towards delivery of (almost) everything, we’re building a wide 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 from the link below.

@WoltEngineering
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.

Our Product Playbook
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.

Our culture

“Wolt is a great environment for screwing up, learning from that, growing, and moving on to do things better. We never blame anyone for mistakes, we just make sure we can learn from them”

• Kimbo, Software Engineer

Read Kimbo's story
Team
Engineering at Wolt

We build the technologies powering Wolt. Our apps connect millions of customers, hundreds of thousands of courier partners, and tens of thousands of shops and restaurants. We now operate in 30 countries, 500+ cities and we’re growing fast.

We build at scale, are laser-focused on building world-class customer experiences, and do things with heart. Dive with us into the complex problems of building the delivery of (almost) everything.

Engineering at Wolt
Tech blog
What we're working on

On this journey towards delivery of (almost) everything, we’re building a wide 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 from the link below.

@WoltEngineering
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.

Our Product Playbook
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.

Our culture
Our people

“Wolt is a great environment for screwing up, learning from that, growing, and moving on to do things better. We never blame anyone for mistakes, we just make sure we can learn from them”

• Kimbo, Software Engineer

Read Kimbo's story