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November 4, 2026

Solution Architect

Senior • On-site

57,657,600 - 61,152,000 PLN/yr

Warsaw, Poland

Quick Facts

  • Role: Solution Architect

  • Focus: Card transaction processing architecture and critical payment system migrations

Description

Design target architecture for card transaction processing systems, including integration with ATM/POS handlers and authorization systems, with a focus on high availability, zero-downtime strategies, and disaster recovery. Lead architecture for critical system migrations and deployments (blue-green, canary, rollback, traffic switching) while defining SLA/KPI/RTO/RPO and capacity planning. Ensure compliance with payment security requirements, including PCI, cryptography, and HSM/key management, supported by HLD/LLD documentation and architectural workshops.

Requirements

  • Minimum 5 years of IT architecture experience in card systems and transaction processing

  • Experience designing, implementing, and developing card systems, preferably NCR Atleos Authentic or comparable solutions

  • Strong knowledge of electronic payments architecture and card transaction processing/authorization

  • Experience designing integrations for transaction switches with banking/authorization systems and ATM/POS infrastructure

  • Practical experience working with Visa and Mastercard payment organizations and card solution providers

  • Knowledge of standards and regulations in the payments industry

  • Experience designing migrations of bank-critical systems

  • Practical knowledge of zero-downtime and non-impact deployment strategies

  • Experience designing high-availability architectures (Active-Active, Active-Passive, Disaster Recovery, Business Continuity)

  • Knowledge of replication, clustering, failover, and geographically redundant production environments

  • Knowledge of PostgreSQL, Oracle Database, or Microsoft SQL Server, including HA, replication, and disaster recovery

  • Experience defining RPO, RTO, SLA, and KPI parameters

  • Ability to analyze performance requirements and perform capacity planning

  • Knowledge of card system security: HSM, cryptography, key management, PCI requirements

  • Experience preparing HLD and LLD architectural documentation

  • Ability to define functional and non-functional requirements

  • Knowledge of Jira and Confluence

  • Experience identifying technology/operational risks, assessing change impact, and preparing architectural recommendations

  • Ability to run architecture workshops and collaborate with business and technical stakeholders

Benefits

  • Opportunity to deliver services across Software, Embedded, Data and Cloud Services projects

  • Involvement in additional pre-sales and expert initiatives

  • Medical care access, sports card, and cafeteria platform (per cooperation rules)

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