Key Responsibilities

• Collect, analyse, clarify, and formalise business and technical requirements.
• Develop and maintain requirements for software products and automated information systems.
• Prepare system requirements, software requirements, functional specifications, and technical specifications.
• Translate business needs into clear and implementable technical solutions.
• Create detailed development tasks with acceptance criteria, business rules, validation rules, and expected system behaviour.
• Decompose large features and business requirements into manageable development tasks.
• Assign and explain tasks to software developers.
• Support developers throughout the implementation process and clarify requirements when necessary.
• Design system components, services, APIs, data flows, and integration processes.
• Describe request and response formats, data structures, validation rules, error-handling logic, and processing algorithms.
• Prepare and maintain technical documentation in accordance with applicable ISO/IEC/IEEE standards and the company’s internal documentation standards.
• Develop system architecture descriptions, integration diagrams, sequence diagrams, activity diagrams, data-flow diagrams, and process models.
• Document automated information systems throughout their complete life cycle.
• Participate in architectural and technical solution discussions.
• Review implemented functionality and verify its compliance with approved requirements.
• Support QA engineers in preparing test scenarios and acceptance criteria.
• Participate in functional, integration, and user acceptance testing.
• Analyse change requests and assess their impact on existing systems, integrations, databases, and business processes.
• Keep system documentation accurate and up to date following software changes and releases.

Required Modelling and Documentation Skills

The successful candidate should be able to work with:

• UML;
• BPMN;
• Sequence diagrams;
• Activity diagrams;
• State diagrams;
• Component diagrams;
• Deployment diagrams;
• Entity-relationship diagrams;
• Data-flow diagrams;
• Flowcharts;
• API specifications using OpenAPI or Swagger;
• User stories and acceptance criteria;
• Functional and non-functional requirements;
• Traceability matrices.

Preferred Qualifications

• Experience in FinTech, payment processing, banking, acquiring, or card payment systems.
• Knowledge of payment industry standards such as ISO 8583, ISO 20022, EMV, PCI DSS, or EMV 3-D Secure.
• Experience working with high-load, highly available, and distributed systems.
• Understanding of information security, data protection, audit, logging, monitoring, and access-control requirements.
• Experience with Docker, Kubernetes, CI/CD, and cloud infrastructure.
• Knowledge of Python, Go, Java, JavaScript, C++, or another modern programming language.
• Experience with Jira, Confluence, GitLab, Postman, Swagger, or similar tools.
• Experience participating in the complete software development life cycle, from initial requirements analysis to production release and operational support.