Senior Java Enginner (Payment team)

B2Spin Limited; United States; À distance; USD 120 000 - 160 000; Plein temps

Avantages offerts par ce poste

Remote work flexibility

Generous leave

Growth opportunities

Résumé du poste

B2Spin Limited is seeking a skilled Java engineer to design, develop, and scale mission-critical payment systems in a fast-growing, AI-driven environment. You will join a globally distributed team and contribute to end-to-end development, testing, and deployment of high-load services with modern tech.

The role emphasizes AI-enabled engineering, collaboration with product owners, and a culture of ownership. Remote work is supported with generous leave and growth opportunities.

Qualifications

• Proven Java 8+ enterprise experience.
• Strong multithreading and high-load system design.
• Deep SQL knowledge and database optimization.
• Experience with Docker and container ecosystems.
• Excellent production troubleshooting and monitoring skills.
• Strong English communication skills (spoken and written).

Responsabilités

• 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.

Connaissances

Java Core

Multithreading

SQL

Kubernetes

English proficiency

Production monitoring

Outils

Docker

PostgreSQL

Description du poste

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 essential—AI 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 tool—not an experiment—and where engineering excellence, speed, and meaningful impact are part of everyday work.