Requirements:

• Experience as a System Analyst or Business Analyst in FinTech or complex distributed systems.
• Strong knowledge of REST API principles; confident use of Postman or ApiDog.
• Familiarity with JSON:API standard is a big advantage.
• Confident knowledge of SQL (queries, joins, data validation).
• Understanding of CQRS and Event Sourcing architecture patterns.
• Experience with UML diagrams — sequence, activity, and state.
• Understanding of Event-Driven systems and message brokers (RabbitMQ, Kafka).
• Excellent communication skills and ability to explain business requirements to developers clearly.
• Confident use of Figma, Miro, Jira, and Confluence.
• Experience using AI tools (e.g., ChatGPT, Claude, Notion AI) for documentation and requirement generation.

Responsibilities:

• Analyze and clarify business requirements, transforming them into detailed technical documentation.
• Design UML diagrams (sequence, activity, state) to describe system workflows.
• Create and maintain API specifications in Postman or ApiDog according to REST and JSON:API standards.
• Write SQL queries for validating and analyzing data.
• Collaborate with frontend and backend teams to decompose tasks and define acceptance criteria.
• Participate in discussions about CQRS, Event Sourcing, and Event-Driven architecture design.
• Maintain product documentation in Confluence and manage task flows in Jira.
• Use AI tools to accelerate requirement gathering, documentation, and task description.

Would be a plus:

• Experience in microservice and event-driven architecture.
• Understanding of Domain-Driven Design (DDD) principles.
• Background in payment systems, wallets, or other financial transaction platforms.
• Basic understanding of data flows in Kafka or RabbitMQ.