Senior Java Developer (Blockchain / Microservices)

Omega Solutions is looking for a Senior Java Developer to design, develop, and support a high-load microservice architecture for seamless integration with blockchain networks. Enjoy interesting tasks and full engineering freedom! Omega Solutions is seeking a strong Senior Java Developer for a large-scale fintech project involving complex integrations and advanced blockchain technologies.

• •Configure efficient and fault-tolerant reading of operations from the blockchain;
• •Implement transactions in smart contracts and publish prices to the blockchain;
• •Develop internal business logic of microservices (event processing, scheduler setup, creating reliable APIs);
• •Import, process, and export data to DownStream systems, tight integration with UI, prepare flexible validation schemes.

• •100% remote work format from the territory of the Russian Federation and fully flexible schedule;
• •Stable and competitive income up to 315k rubles with transparent payment via individual entrepreneur;
• •Friendly, open atmosphere within the company and complete absence of bureaucracy;
• •Professional development through solving complex real tasks, not formal courses;
• •Real opportunity to propose your architectural ideas and immediately see how they are implemented in production.

• •Higher technical education and commercial development experience of at least 5 years;
• •Experience as a developer in large Enterprise companies (top banks, fintech, brokers, exchanges);
• •Clear understanding of corporate development standards, CI/CD processes, security requirements, and architectural reviews;
• •Confident knowledge of Java 8, OOP, REST, XML, JSON, HTTP, and design patterns;
• •Experience in development using Spring, Spring Boot, and microservice architecture;
• •Excellent knowledge of SQL and practical experience with databases (PostgreSQL);
• •Confident experience with integration protocols and brokers (REST, Kafka, RPC, FIX);
• •Experience writing quality unit and integration tests (JUnit, Mockito);
• •Attention to detail and ability to conduct business correspondence competently.