Asseco SEE — MX, TIPS & Core Payments
National payments infrastructure for Montenegrin banks — MX messaging, instant payments, and core banking integration.
Impact
Mission-critical payments infrastructure for multiple Montenegrin banks

Problem
Banks needed reliable conversion and delivery of financial messages across SWIFT, ISO 20022 (MX), and JSON — plus instant payment rails aligned with central bank requirements — on a complex, high-volume legacy platform.
Solution
We implemented MX messaging for RTGS and Clearing, engineered TIPS instant payment systems, built message format conversion pipelines, and improved resilience, concurrency handling, and maintainability across the national payments stack.
Architecture
Large-scale monolithic banking platform with message queues (IBM MQ, Kafka, ActiveMQ), IIS-hosted services, and strict availability requirements for national payment rails.
Results
- 1Financial message conversion between MT/MX (SWIFT, ISO 20022) and JSON
- 2MX messaging for RTGS and Clearing channels for multiple Montenegrin banks
- 3Target Instant Payment System (TIPS) delivery for ASEE bank clients
- 4Concurrency and performance improvements under extreme banking load
- 5Stress-tested scenarios aligned with production-scale payment volumes
- 6Maintainable, redundant architecture with minimal failure rate