IT Consultant - Integration & Development - Cards Transformation (Polish is Mandatory) (She/He/They)

Responsibilities

• Develop and configure integrations including ISO8583 adapters, POS/ATM handlers, and system interfaces
• Implement data mapping, transformations, validation rules, and error handling (retries, idempotency)
• Build and maintain batch/ETL processes, data migrations, and reconciliation tools
• Implement logging, monitoring, and observability aligned with engineering standards
• Support SIT/UAT phases by resolving defects and ensuring system stability and performance

Requirements

• Experience delivering integration solutions in banking environments (POS/ATM/e-commerce and back-office systems)
• Strong development experience with Java (17), Spring Boot, Kafka, OpenShift, and PostgreSQL
• Proven ability to build reliable transactional systems with focus on consistency, idempotency, and observability
• Experience working with ISO8583 messaging and complex payment integrations
• Understanding of CI/CD, containerization, and modern development practices
• Bonus Points For
• Experience designing and implementing PostgreSQL data models (schemas, indexes, procedures)
• Experience supporting settlement processing, audit feeds, and reconciliation processes
• Familiarity with systems such as IPS, Visiona, INCAS, or ACI platforms (Interchange/Cardpack/Acquirer)
• Experience optimizing performance and ensuring data integrity across distributed systems
• Experience working in large-scale financial transformation programmes
• IMPORTANT
• Fluent Polish (spoken and written) - mandatory
• Good command of English for documentation and collaboration.
• Availability to work on-site, with partial remote work - 3 days per week from the office.
• ONLINE RECRUITMENT PROCESS STEPS
• Screening call with the Recruiter
• Hiring Manager Technical Interview
• Client stage
• Feedback/Offer
• We offer a flexible collaboration model based on a B2B contract, with the opportunity to work on diverse projects.

Benefits

Additional Information

CAPCO POLAND Location: Warsaw, Poland Pref. work model - 3x per week from office At Capco Poland, we're not just another consultancy - we're the spark behind digital transformation in the financial world. As a global leader in technology and management consulting, we thrive on helping clients tackle the toughest challenges across banking, payments, capital markets, wealth, and asset management. Our secret? A culture that's fast, flexible, and fiercely entrepreneurial. We move quickly, think creatively, and always put our people first. We're passionate about growth - both for our clients and ourselves - and that means attracting the very best talent to join us on this exciting journey. We're proud to be: - Trailblazers in banking, payments, capital markets, wealth, and asset management - Champions of an agile, nimble, and innovative work environment - Dedicated to building a team of top-notch professionals who share our drive and vision ROLE OVERVIEW Build high-performance payment integrations at the core of a major cards transformation The Role We are looking for an experienced IT Consultant/Developer to join a large-scale cards transformation programme for a leading Polish bank. You will design, build, and configure integrations across complex system landscapes, supporting transactional flows across POS, ATM, and e-commerce channels. This role focuses on delivering reliable, scalable, and observable solutions using modern technologies while ensuring consistency and resilience across interfaces. Fluency in Polish is mandatory.

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