Job Details

Hyperion is seeking a Senior Java Developer for their Fintech company. This is a remote, full-time position focused on developing and maintaining payment systems. Apply via the provided link or contact @*****.

Hyperion is a fast-growing company in the payment technology sector, developing modern payment processing solutions that ensure reliability, security, and high transaction performance. We are looking for a Java Developer to join our expanding team and work on payment systems. Role: Development and enhancement of the company's payment infrastructure. This includes supporting existing solutions and participating in the creation of new services. Tasks: - Development and support of software modules for payment systems. - Integration of new payment solutions and system configuration according to client requirements. - Optimization of existing code and performance improvement. - Participation in the design of new services (microservice architecture and monolith). - Collaboration with the QA team for testing new features. - Providing 2nd and 3rd level technical support. Additional for Senior Java Developer: - Conducting code reviews. - Monitoring the quality of task execution. - Coordinating the work of the development team.

For Java Developer: - Experience with Java from 1 to 3 years. - Excellent knowledge of: - collections, - multithreading (synchronization, JMM, java.util.concurrent), - exceptions, Generics, I/O. For Senior Java Developer: - 5+ years of experience. - Deep knowledge of Java and database technologies (RDBMS, NoSQL — Cassandra, Redis, etc.). - Experience in developing and supporting microservice architecture. - Experience in managing a development team. General Requirements: - Experience with J2EE (Servlet, JDBC, Spring). - Knowledge of SQL / NoSQL. - Basic knowledge of web development (HTML, CSS, HTTP, JavaScript). - Experience with distributed systems is a plus. - Knowledge of cryptography basics (e.g., OpenSSL) is an advantage. - Ability to work with high-load systems. - English language — Intermediate or higher (will be a plus).

Remote work. Full-time employment. Opportunities for professional growth. Work in a team of strong specialists. Conditions are discussed individually after the interview.