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Senior Software Engineer – Backend Platform

Stockholm, Stockholm County, se💼 Full-time🗓 2026-06-12 → 2026-09-25

Core

Design and build high-throughput, low-latency backend services and event-driven systems for processing real-money transactions with strict consistency guarantees.

Role type

Senior IC backend platform engineer (distributed systems)

Builds

Scalable backend services, Kafka-based event flows, and production infrastructure for financial/gaming transaction platforms

Domain

Fintech / High-frequency trading / Real-money gaming

Deliverable

production ML models | product features | infrastructure

Required skills

Java, Spring Boot, Kafka, PostgreSQL, Kubernetes, distributed systems design, event sourcing, idempotency, transaction management, system observability

Preferred skills

Fintech/gaming/trading domain experience, multi-region system design, caching strategies, infrastructure as code, load testing, incident response

Technologies

Java, Spring Boot, Kafka, PostgreSQL, Kubernetes

Responsibilities

Design APIs and data models for high-throughput transaction flows, build Kafka-based event-driven services, deploy and operate services in Kubernetes, drive technical decisions on consistency and scalability, own critical systems end-to-end, strengthen engineering quality through code reviews

Seniority

Senior, hands-on IC

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