Role & responsibilities Responsibilities: Organizing and managing system integrations, including working with APIs, middleware configuration, and interaction with external services; Defining and closing integration channels, ensuring secure and efficient data exchange between systems; Collecting, analyzing, structuring, and aligning software requirements with business users; Decomposing tasks for developers and ensuring detailed documentation for implementation; Preparing test scenarios and participating in functional testing together with QA specialists; Collaborating with technical support, investigating incidents, and assisting in bug resolution; Working on high-load system analysis, ensuring scalable and efficient solutions. Preferred candidate profile Requirements: At least 5 years of experience as a System Analyst; Experience with payment systems is mandatory; Strong expertise in high-load system analysis, design, and optimization; Professional skills and proven work experience with REST/SOAP APIs and messaging brokers (RabbitMQ, Kafka) and asynchronous processing; Experience working with SQL databases (MSSQL, PostgreSQL, ClickHouse), including integration-level knowledge; Proficiency in business process modeling tools (BPMN, UML) and algorithm description; Experience in system integration architecture, including defining and managing integration channels; Strong background in project management methodologies and tools; Experience with analytics and monitoring tools (Grafana, Sentry); English proficiency B2 or higher: ability to work continuously with suppliers and the internal team; Strong communication skills, responsibility, and ability to work independently; Experience working in international or distributed teams is a plus. Perks and benefits