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About B2Spin
We are B2Spin, and we are dedicated to delivering the best Free-to-Play Social Casino and gaming experiences by creating captivating, engaging, and unique products that are accessible to everyone. We have built a team of talented professionals from all over the globe, who are working to continually improve the experiences of our players. We are not looking to just be part of the industry, but to revolutionize it.

AI-Driven Engineering Culture
We are actively building an AI-driven engineering organization with a clear and deliberate stance: artificial intelligence is a core part of how we build and deliver software not an experiment, not a trend, and not an optional add-on.
AI is embedded into our engineering workflows, from system design and prototyping to refactoring, testing, and code review. We expect engineers to be fully comfortable working in AI-driven environments and to treat AI as a primary productivity multiplier. Strong engineering judgment, architectural ownership, and accountability remain essentialAI amplifies our engineers, it doesn't replace responsibility for technical decisions.

The Role
You'll be building and maintaining mission-critical payment systems that handle massive scale and directly impact millions of users worldwide.

What you will be doing
Write well-designed, testable and scalable code in a timely manner
Take part in the full development cycle from sprint planning to release cycles
Ensure smooth development and cooperation between dev teams and product owners
Build and maintain high-load systems that handle massive scale
Troubleshoot production issues using metrics, alerts, monitoring and profiling
Contribute to seamless scaling and automation initiatives

What we are looking for
Strong Java Core expertise (Java 8+) with proven track record in enterprise environments
Deep expertise in multithreading and high-load systems architecture
Solid SQL knowledge and database optimization skills
Strong experience with Docker and containerization ecosystem
Excellent troubleshooting skills with production monitoring tools
Strong English communication skills in speaking and writing

Bonus points for: Experience with Clickhouse, GCP, Kafka ecosystem, ElasticSearch, Ebean, Protobuf, InfluxDB/Grafana, Google Services integration, SPA and modern mobile/web technologies, or fintech experience.

Main technologies: Java, Spring, Spring Boot, Ebean-ORM, Quartz, Maven, Resteasy, Flyway, PostgreSQL 15, HTTP/Websockets, Netty, K8S/Docker, GCP, Jenkins, ELK, Grafana

Why you will love it
You'll be at the forefront of AI-driven engineering in a fast-scaling environment where your code directly impacts millions of users. Work with cutting-edge technology (latest Java, Spring Boot, GCP, Kubernetes) while enjoying full remote flexibility, generous leave, and real opportunities for growth. Join a team that treats AI as a core engineering toolnot an experimentand where engineering excellence, speed, and meaningful impact are part of everyday work.

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