Deep dives into Core Banking Integration, Fintech Architecture, Event-Driven Systems, and modern software engineering.
5 posts
Five tiers of database performance engineering across relational and NoSQL systems: advanced indexing, sargable query rewrites, keyset pagination, schema design, memory tuning, and infrastructure scaling. Composite and covering indexes, MongoDB and Redis scripts, and connection-pooled keyset pagination across seven backend stacks.
A deep dive into ISO 20022 messaging: pacs.008, pacs.009, camt.053, and pain.001 against the legacy SWIFT MT series. External code sets, the Business Application Header, migration tradeoffs, and parsing structured XML versus tag-based text across seven backend stacks.
A deep dive into gRPC and REST across five architectural pillars: serialization efficiency, HTTP/2 multiplexing, contract-first governance, streaming patterns, and mTLS security. Contract-first gRPC server and client code across seven backend stacks, plus a decision matrix for Open Banking versus internal microservices.
Four architectural patterns for bridging legacy core banking systems and modern digital channels: synchronous REST/gRPC, Kafka-based event streaming, Oracle AQ/CDC database integration, and the transactional outbox with saga orchestration. Production code, failure modes, and lessons learned across seven backend stacks.
How Apache Kafka and RabbitMQ enable high-throughput, resilient financial event streams. A deep dive into consumer groups, dead-letter queues, schema evolution, and exactly-once semantics in production banking systems.