Senior Backend Engineer

Wolt; Helsinki; Hybrid; EUR 65,000 - 95,000; Full time

Benefits offered by this job

Hybrid work setup

Job summary

Wolt is seeking a Golang/Python Backend Software Engineer for the Marketing Technology team to help scale campaigns and consent platforms. The role emphasizes building internal services using Golang and Python, with exposure to Postgres, Spark, and data pipelines in a production Kubernetes/AWS environment.

You will collaborate with marketing and analytics stakeholders, own projects end-to-end, and work across teams in Helsinki or Berlin with a hybrid setup.

Qualifications

• Experience designing and building APIs with Golang or Python.
• Familiarity with grpc, FastAPI, Echo, PostgreSQL, and Spark.
• Willingness to own and operate scalable software services in production on Kubernetes in AWS.

Responsibilities

• Develop a centralized consent platform enabling teams to create and deploy compliant experiences.
• Collaborate cross-functionally with marketing, analytics, product leads and other teams to drive projects from idea to production.
• Maintain and expand existing services and design new ones for marketing tech initiatives.

Skills

Golang

Python

Backend API design

Cloud (AWS)

PostgreSQL

Spark

Kubernetes

CI/CD / Git

Tools

PostgreSQL

Kafka

Redis

Kubernetes

AWS

Job description

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.

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 Team

We, the Marketing Tech team, are looking for a passionate and driven Golang/Python Backend Software Engineer. We are a product-focused team that emphasizes enabling the scaling and efficiency of campaigns and marketing efforts both inside and outside of Wolt.

The MarTech team is currently building internal services around marketing and consent use‑cases to allow our marketing stakeholders to drive marketing campaigns in and out of the app, and ensure we provide and maintain a compliant experience throughout the whole process. We empower marketing with the tools to fully set up and run their campaigns independently so as not to be blocked by product or engineering.

In our team, you can expect to face many different types of projects across the realm of acquiring users and keeping them engaged. You’ll work on both maintaining and expanding existing services, as well as planning and designing new ones. Our project types vary a lot, from services used in the core Wolt flow, services for automation or to enable our Marketing teams, ETL jobs, as well as streaming processing workers.

• Audience management tool in Golang
• Marketing attribution powered by Spark
• Consents management platform in Golang
• Bid & budget automation platform in Python
• Campaign generation tool in Golang
• A whole host of ETL jobs written in Python

The key business need this role is to fill is the development of a centralized consent platform that allows teams to easily create and deploy compliant consent‑gathering experiences.

Since the team focuses on providing platforms and tools to enable marketing at Wolt, you can expect cross‑team collaboration within Wolt. You’ll also regularly be working with marketing or analytics stakeholders and product leads to see through bringing projects from idea to production. In addition, you’ll collaborate cross‑functionally with teams from DoorDash, working on building services and aligning roadmaps across several teams.

If you didn’t know it yet, we have a strong Python community at Wolt: around 100 of our engineers are actively using Python and sharing knowledge related to its rich ecosystem. Wolt Tech Talks Youtube channel has recordings from our Python meetups and interesting articles in our engineering blog

This role can be based in one of our tech hubs in Helsinki and Berlin. Read more about our hybrid and remote setup here.

Our humble expectations:

• You might be the one if you are an engineer with experience in designing and building top‑class software and APIs using modern Golang or Python. We work primarily with grpc, FastAPI, Echo, PostgreSQL, and Spark, and value familiarity with Postgres, Kafka, Redis, as well as monitoring, alerting, and deploying services in production. An understanding of what it takes to build and operate scalable software services is key. Our backend runs on Kubernetes in AWS, so experience with similar cloud infrastructure is a strong plus. We also appreciate a willingness to ownership and deliver projects end‑to‑end.
• You know what it takes to achieve ambitious goals together. We expect you to be a good communicator, willing to collaborate with people outside of your own team, be a product‑oriented and proactive problem solver, willing to bring up issues in a constructive manner to the team and the Wolt Product team at large.
• Understanding of marketing principles and workflows will also be a plus, but don't let it get into your way if these are newer things for you, we are sure you'll get the grasp of them!

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.