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Backend Engineer - Retention

Warsaw, Poland💼 Full-time🗓 2026-09-10 → 2026-10-03

Core

Building scalable, robust, and efficient solutions in a full-stack team to develop platforms and features that keep players engaged and coming back for more in the iGaming industry.

Role type

Senior Backend Engineer (Java/Kotlin)

Builds

Communication capabilities, player engagement features, loyalty programs, and seamless cross-channel experiences for players. (via careerplan.io/jobs/15b7839f-548c-47c1-9015-e913aafce6a8-backend-engineer-retention-at-leovegas-group)

Domain

iGaming / Online Gambling

Deliverable

production ML models | product features

Required skills

Java, Kotlin, Kafka, microservice architecture, Spring, JPA, MySQL, AI tools (Claude)

Preferred skills

OpenAPI, BigQuery, Kubernetes

Responsibilities

Building scalable solutions in a microservice architecture, participating in technical discussions to guide business needs, collaborating with operational units and stakeholders, driving initiatives with a high-quality mindset, managing end-to-end development, and ensuring IT ecology scalability.

Seniority

Senior, hands-on IC