HTML5 gaming platform and RGS (random number generator server) for instant-win and casino games
Roller Gaming operates a dual-stack engineering org: a React/Vue frontend pipeline for HTML5 games (instant-win, slots, bingo, sportsbook) coupled with a Java/Spring backend running on Kubernetes and AWS. The tech foundation reflects high-transaction gaming workloads — Kafka, RabbitMQ, PostgreSQL, Docker orchestration — with active focus on CI/CD refinement and test coverage, pointing to operational maturity concerns as scale increases. Hiring is engineering-only and concentrated in Bulgaria, suggesting a distributed backend-first operation.
Roller Gaming is a London and Sofia-based gaming studio founded in 2020, building native apps and web platforms for the igaming market. The product portfolio spans instant-win games (their specialization), slots, lottery, bingo, and sportsbook offerings, all authored in HTML5 for cross-platform deployment. Games are served via Ocean RGS, a proprietary cloud-based random number generator and content distribution platform designed for rapid global market deployment. The company operates at high transaction volumes and serves operators seeking localized, multi-vertical content.
React, Vue, and HTML5 on frontend; Java, Spring Boot, and Hibernate on backend; PostgreSQL for persistence; Kafka and RabbitMQ for messaging; Docker and Kubernetes for orchestration; AWS for hosting; Jenkins, GitLab CI/CD, and Bamboo for deployment pipelines.
Currently hiring in Bulgaria. All 14 active open roles are engineering positions spanning senior, mid, junior, and lead levels.
High transaction and large-scale website infrastructure; CI/CD pipeline integration; and testing framework refinement. Known challenges include improving test coverage and reducing production incidents.
Other companies in the same industry, closest in size