Be a part of the next big thing

Do you thrive on tackling complex challenges? Are you passionate about creating impactful solutions that drive commerce forward? Do you believe in encouraging and elevating those around you?

About us

Kustom, formerly known as Klarna Checkout (KCO), is the Nordic market leader in digital checkout solutions. Today, we support over 24,000 merchants across more than 170 countries, providing a streamlined checkout experience. We offer localized solutions in 18 markets, tailored to specific languages, currencies, and payment methods. No matter where businesses operate, we deliver a checkout experience that meets the needs of both merchants and shoppers - driving growth globally.

The role

As a Data Engineer at Kustom, you’ll design, build and maintain reliable, well-tested data pipelines and models across our data warehouse and streaming ecosystem. You’ll work closely with analysts, data scientists and product teams to deliver clean, trusted data that drives decisions and powers features.

You’ll join a team that values pragmatism, clarity and strong engineering fundamentals: version control, CI/CD, testing, documentation and ownership. You are comfortable in an environment where not all answers are known to us - and where we solve problems as a team, drawing on each person's experience to build our foundational architecture together.

Things you'll be doing

• Implement scalable, high-performance data processing pipelines that enable us to generate insightful analytics.

• Integrate internal and external data sources to enrich our existing data entities.

• Own and evolve data modeling (dimensional / wide-table / event-based) for BI, experimentation, and product use cases.

• Optimize performance and cost across Databricks jobs, dbt runs, and storage.

• Collaborate with stakeholders to translate business questions into robust datasets and definitions.

• Help shape the roadmap for tooling, architecture, and governance as we scale.

Skills and experience you'll need

• Bachelor’s degree in Computer Science, Engineering or related field.

• 3+ years of professional experience in data engineering.

• Strong proficiency in SQL and data modeling.

• Deep experience in dbt or equivalent modular data transformation frameworks.

• Strong understanding of medallion architecture or equivalent data design patterns to logically organize data at scale.

• Familiarity with Spark or equivalent data processing frameworks. 

• Experience in modern data warehousing tools like Databricks, Snowflake and BigQuery.

• Proficient understanding of code versioning tools, such as Git.

• Strong problem-solving skills and attention to detail.

• Strong communication skills and ability to work in a dynamic startup environment.

We believe you'll thrive in this role if you have

• Enjoy building reliable systems and take pride in creating clean, well-structured data models that others can trust.

• Care about quality - you write tests, review code thoughtfully and document your work so it’s easy for others to understand.

• Are pragmatic and solution-oriented. You focus on delivering value without over-engineering.

• Feel comfortable working in a growing environment where not everything is fully defined yet.

• Communicate clearly and enjoy collaborating with analysts, data scientists and product teams.

• Take ownership of your work and follow through - from understanding the problem to delivering a robust solution in production.

• Think long-term about maintainability, performance and cost, not just the immediate task.

• Are curious and motivated to continuously improve how we build, model and use data.

Benefits 

• Robust pension plan with national and occupational components

• Excellent health insurance coverage, including long-term illness protection and salary exchange options

• Annual wellness allowance of 3,000 SEK to invest in your health and fitness

• Extra day off when major holidays (e.g., Christmas Eve, New Year's Eve) fall on weekends

• Continuous learning opportunities and professional development support

A place to grow

At Kustom, you won’t just be another face in the crowd. This is a place where we elevate each other and celebrate success as a team. We believe in our ability to create excellence - and have fun doing it!

We know we set high expectations, but we also know that the road to success isn’t a straight line. We support and encourage each other to try, to fail, to try again. Because that’s how we grow, individually and together.

Does this sound like the place for you?

About your application

• Please apply in English. At Kustom, we welcome everyone! We don’t care where you’re from, whom you love, or what kind of food is your favorite (unless we’re celebrating together, then we’ll need to know!). We believe in inclusivity for all.

• Given the above, we treat all candidates the same! That’s why we have this awesome recruitment tool to keep track of all the amazing talents that apply - so please; apply through the system and we’ll make sure to keep you updated along the recruitment process. Please note that we can’t keep track of CVs or similar documents sent via email.

• We value your privacy! When you apply, we'll handle your data with care. Want to know more about how we use your information? Check out our FAQs at the bottom of the jobs page - we've got all the details there for you!