Mid-Level Backend Developer
emagine is searching for a mid-level (4-5 years) backend engineer for one of our clients in Stockhom
Start: Asap (or within 1 month)
Duration: 1 year to start with
Location: Stockholm, 2-3 days/week at the office
Our client runs a "perfect-offer" decisioning service that scores and ranks offers in real time on the live customer decision path. The role centres on turning credit variables and decision data into sound offer outcomes through composite scoring and configurable steering strategies, and evolving the platform to scale safely as strategies, markets, and products grow.
What You'll Do
Improve core components of the scoring and ranking pipeline, downstream integrations, and strategy configuration, focusing on latency, reliability, and accuracy under loadBuild and tune ranking and steering rules, keeping decisions correct and explainableHarden the service for production through performance testing, observability, and resilient designContribute as a strong technical voice on the team, supporting architectural decisions and raising concerns where a design doesn't hold up
Your profile
Strong Java experience building high-availability, correctness-critical backend services, with a genuine sense of ownership in productionComfort with distributed-systems concerns: latency, resiliency, idempotency, and observabilityHands-on experience with modern Java and Spring Boot; familiarity with Gradle, Kafka, and Avro is a strong plusExperience in finance or another regulated, high-stakes domain is a bonus, not a requirement