Backend Engineer

Posted Yesterday
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2 Locations
In-Office or Remote
Mid level
Food
The Role
Design, build, and operate backend services that power growth experiments across the consumer app. Implement A/B tests, feature flags, and experiment infrastructure. Collaborate with Product, Design, mobile and web engineers, and Data to ship high-velocity experiments. Emphasize reliability, observability, automated testing, and pragmatic, easily removable experimental code.
Summary Generated by Built In
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.

Backend Engineer - Growth Experiments 

We're looking for a Backend Engineer to join our Growth Experiments team in the Consumer Product group. You'll work on the systems that power experiments across Wolt's consumer app, helping millions of users discover the value of Wolt and building the habits that keep them coming back.

This is a team that believes the fastest way to learn is by doing. We prioritize high-velocity experimentation over long development cycles, relying on rigorous A/B testing to validate hypotheses and measure outcomes. Our philosophy is simple: ship small, learn fast, and compound the wins. If you like seeing your work in production quickly, letting data guide decisions, and aren't too precious about code that might get thrown away after an experiment, you'll fit right in. 🚀


What you’ll be doing

You'll join a cross-functional team of Backend, iOS, Android, and Web Engineers, working alongside Designers and Data Analysts, all closely partnered with Product. Beyond the team, you'll collaborate with platform teams and tap into Wolt's engineering community for shared tooling and best practices. 👥

Day-to-day in this role you’ll:
  • Design, build, and operate backend services that power growth experiments across the consumer app, primarily in Python, Kotlin, and/or Go.
  • Implement A/B tests, feature flags, and experiment infrastructure that let the team validate hypotheses quickly.
  • Collaborate closely with Product, Design, iOS, Android, Web, and Data to ship experiments that drive measurable impact on user growth and retention.
  • Balance speed with quality: write clean, testable code that's easy to ship and easy to remove when experiments conclude.
  • Drive reliability, observability, and efficiency through automated testing, logging, alerting, and incident response.

Our humble expectations* 

Backend development experience in one or more of the following languages: Python, Kotlin (or modern Java), or Go.Experience building and operating production services at scale.Familiarity with databases (PostgreSQL, MongoDB, or similar), RESTful APIs, and CI/CD pipelines.Comfort with experimentation infrastructure: A/B testing, feature flags, or similar.A strong ownership mindset, someone proactive, curious, and eager to ship.A pragmatic approach to quality: you ship fast, encapsulate experimental code properly, and avoid over-engineering.Excellent collaboration and communication skills in English.

Optional, but great to have

Experience in a growth or experimentation-focused team. Familiarity with Kafka, Redis, or event-driven architectures.Experience across multiple backend languages.

What we offer

✨ Ship and learn fast: See your work in production quickly and let data guide what's next.

🤝 Collaborate across disciplines: Work shoulder-to-shoulder with Product, Design, Data, and mobile engineers.

📈 Drive real impact: Your work directly influences user growth and retention metrics.

Next steps*

This role can be based in Helsinki or Stockholm ONLY. 

We're reviewing applications as they come in, so if this sounds like your kind of challenge, don't wait too long. We'd love to hear from you.


The hiring process typically includes an initial chat with our Talent Acquisition Partner, followed by technical interviews, a team conversation, and final alignment.

Feel free to check the Wolt Tech Blog for more about our culture & technology.

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.

Skills Required

  • Backend development experience in Python, Kotlin (or modern Java), or Go
  • Experience building and operating production services at scale
  • Familiarity with databases such as PostgreSQL or MongoDB
  • Familiarity with RESTful APIs and CI/CD pipelines
  • Comfort with experimentation infrastructure (A/B testing, feature flags)
  • Strong ownership mindset, proactive and curious
  • Pragmatic approach to quality; write clean, testable, and removable experimental code
  • Excellent collaboration and communication skills in English
  • Experience in a growth or experimentation-focused team
  • Familiarity with Kafka, Redis, or event-driven architectures
  • Experience across multiple backend languages

Wolt Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Wolt and has not been reviewed or approved by Wolt.

  • Equity Value & Accessibility Corporate postings highlight equity as part of the compensation package, offering ownership potential alongside salary and benefits. Mentions of stock in certain locations indicate accessible participation beyond base pay.
  • Leave & Time Off Breadth Job materials describe generous vacation allowances and strong time‑off policies in several markets. A global parental‑leave policy with top‑ups beyond statutory levels is also cited.
  • Wellbeing & Lifestyle Benefits Materials describe wellness support such as an Employee Assistance Program, fitness or sports perks, and product credits or discounts. Country‑specific allowances and perk platforms add practical lifestyle value in some locations.

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The Company
HQ: Helsinki
8,287 Employees
Year Founded: 2014

What We Do

Wolt is a Helsinki-based technology company that provides an online platform for consumers, merchants and couriers. It connects people looking to order food and other goods with people interested in selling and delivering them. To enable this, Wolt develops a wide range of technologies from local logistics to retail software and financial solutions – as well as operating its own grocery stores under the Wolt Market brand. Wolt’s products include Wolt+ (subscription service for customers), Wolt for Work (meal benefits and office deliveries for companies), Wolt Drive (fast last-mile deliveries for merchants) and Wolt Self-Delivery (service for merchant partners with their own delivery staff). Wolt’s mission is to make cities better by empowering and growing local communities. Wolt was founded in 2014 and joined forces with DoorDash in 2022. DoorDash operates in 29 countries today, 25 of which are with the Wolt product and brand.

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