b2spin - Senior Java Engineer (Payments team)

Remote - Ukraine5mo ago

Remote Senior EMEA Fintech Payments Senior Software Engineer Junior Software Engineer Java SQL Docker GCP ClickHouse

Requirements

• 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

Responsibilities

• 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 • 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.