Senior Backend Engineer -Kafka Platform
Pubblicato il 18-08-2026 - Klarna in Milano
Job-ID: 4a6f*******f******-b*****fba****f9cfLocation: Stockholm; MilanSalary: ******
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- ****** SEKType: Full timePosted: **********Contact: You'll Do Develop, operate and maintain Klarna's shared Kafka clusters — ~150 nodes, 60 MiB/s ingestion, 120 MiB/s output, 125 TiB stored.
Lead the design and implementation of core data streaming systems using Kafka, AWS, Iceberg, ECS, and S3.
Drive architectural decisions with a clear view of Klarna's data landscape, downstream consumers, and cross-team dependencies.
Derive technical requirements from the broader organization and deliver projects and integrations with minimal oversight.
Lead technical work in cross-team initiatives.
What You Are Experienced building and running streaming platforms on AWS, including EC2 clusters and S3.
Hands-on with Python, distributed systems, and infrastructure-as-code using Terraform and Ansible.
Familiar with SSO, IAM, and AWS account setups for data platforms — able to balance security with ease of use for developers.
Comfortable operating systems in production and improving them through monitoring, incident learnings, and iteration.
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Focused on building solutions that last and scale, not just solving the immediate problem.