
IT Architect – Transactional Systems (f/m/x)
Sii Poland · Wrocław, Dolnośląskie, Poland
About this role
For a project in the banking sector, Sii is hiring an IT Architect responsible for the design and development of the architecture of card and payment systems, co-creating modern solutions to ensure high availability, security, and reliability of key transaction systems. Tasks include designing the architecture of card systems across Issuing, Acquiring, and Clearing & Settlement, creating integration architecture between banking, card systems, and payment organizations, defining architectural standards and non-functional requirements, supporting design and development teams in architectural decisions, designing modernization strategies for payment platforms, and assessing technology risks. Requirements include a minimum of 5 years designing banking or payment systems architecture, very good knowledge of card systems and payment processes, knowledge of Visa, Mastercard, ISO 8583, and modern API standards, integration architecture (REST, SOAP, MQ, Event-Driven Architecture), architectural patterns (Microservices, SOA, CQRS), payment security (HSM, EMV, tokenization), and fluency in Polish.
Skills & technologies
Must have
- Payment Systems
- ISO 8583
- REST API
- Event-Driven Architecture
- Microservices
- EMV
- SOA