Backend Engineer @ CDON: Drive the Future of E-commerce

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.

At Embark, you will join the game services group, a collective of teams powering player-facing online functionality, and managing highly scalable backend systems. In this role, you will work with online systems related to player progression, social interaction, game orchestration, monetization and authentication. The challenges you will solve are similar to those found in distributed data-intensive platforms, but applied to live service games.Most of your time will be spent in a small number of core services, as part of a complex, interconnected gaming ecosystem.. You are expected to take responsibility, ownership and identify what needs to be done. You will be part of a highly collaborative environment where you work together across teams to bring the best experience to our players. Our core technologies include Go, C++, Unreal Engine 5, Google Cloud Platform (GCP), SQL (using Google Spanner), Redis, Kubernetes, and Bazel. What you will do Design, build, and maintain live service functionality supporting multiple games, such as messaging, VOIP, lobbies, inventory, matchmaking and microtransactions Work with distributed backend systems in a live service environment handling millions of players’ data Collaborate both within your team and with various other teams to build highly-scalable, secure and reliable online services in our games Innovate, and explore new technologies. Improve tooling, workflows, and architecture for our online systems We think you bring Strong programming skills and 5+ years of professional experience with Go Experience with large-scale data-intensive systems Experience with Kubernetes and cloud environments, preferably GCP The ability and passion to take ownership and drive work forward A curious mindset and comfort working in highly collaborative environment Professional English communication skills Bonus Experience with cloud-native databases, specifically Google Spanner Experience building or operating authentication systems using OpenID or similar standards Some years of professional experience with C++ Experience working with game engines, specifically Unreal Engine At Embark we offer competitive salaries, passionate colleagues to share knowledge with and much more, but most of all we invite you to take part of a journey into the unknown, to build creative, surprising and beautiful experiences together. We welcome game makers of all sex, class, colour, age, gender identity, education, religion, opinion, culture, nation of origin, language, sexual orientation, shape, size, and ability Did we leave anyone out? Well, we welcome you, too! We think that the gaming industry is made better when everyone has a seat at the table. Be yourself at Embark and make games while doing so. Please apply with confidence. We can’t wait to hear from you (in English)!