Senior Backend Engineer – Payments

• Architect and build scalable Java solutions powering a global social gaming platform reaching up to 150 million customers




• Write well-designed, testable, and scalable code in a timely manner




• Participate in the full development cycle from sprint planning through release cycles




• Ensure smooth development and cooperation between development teams and product owners




• Build and maintain high-load systems handling massive scale




• Troubleshoot production issues using metrics, alerts, monitoring, and profiling




• Contribute to scaling and automation initiatives

Requirements

• Extensive experience as a Java Engineer with strong Java Core knowledge (Java 8+)




• Proven expertise in multithreading and high-load systems




• Solid SQL knowledge and database optimization skills




• Strong experience with Docker (Docker Swarm) and containerization ecosystem




• Excellent troubleshooting skills with production monitoring tools, including metrics, alerts, monitoring, and profiling




• Good English communication skills in speaking and writing




• Experience with SPA and modern mobile and web technologies




• AI-driven engineering workflow comfort; willingness to use AI-assisted development as a primary productivity multiplier




• Bonus experience with ClickHouse, GCP, Kafka ecosystem, Elasticsearch, Ebean, Protobuf, InfluxDB/Grafana, Google Services integration, or wallet service maintenance




• Experience with Java 25, Spring Boot 4, Spring 7, Google Cloud Platform, Kubernetes, Kafka, AlloyDB for PostgreSQL, Spanner, Ebean ORM, Flyway, Redis, Quartz, WebSockets, Retool, Testcontainers, Locust, Jenkins/ArgoCD, ELK/Sentry/Grafana, Jira, Confluence, Slack, and Bitbucket

Core Competencies

Demonstrates extensive experience in Java Engineering, particularly with Java 8+, and possesses strong skills in multithreading, high-load systems, and database optimization. Proficient in utilizing modern development tools and methodologies to build scalable solutions and troubleshoot production issues effectively.

Highest-signal resume keywords

• Java Engineering




• Multithreading Expertise




• High-Load Systems




• Docker Containerization




• SQL Database Optimization

ATS Optimization Keywords

Hard Skills

• Java 8+




• Multithreading




• SQL




• Docker




• Spring Boot




• Kubernetes




• Kafka




• Elasticsearch




• GCP




• AI-Driven Engineering

Soft Skills

• Good English Communication

Industry Keywords

• Social Gaming Platform




• Scalable Solutions




• Production Monitoring




• Automation Initiatives




• Development Cycle

Tools & Technologies

• Docker Swarm




• Google Cloud Platform




• Redis




• Grafana




• Jenkins




• Bitbucket




• Jira




• Confluence




• Testcontainers




• WebSockets