Ledgerline2025Payments
A double-entry payment ledger processing card and SEPA transactions. Event-sourced core with the transactional outbox pattern, idempotent consumers and exactly-once settlement reconciliation.
Portrait / 1:1
I design and ship the invisible machinery — APIs, event pipelines and data layers that keep products fast under real-world load.
Scroll to readI write Java that stays fast at three in the morning, on the busiest day of the year, when nobody is watching. Boring infrastructure. Exciting uptime.
I'm Omeed Familie, a Java backend engineer with seven years of experience building high-throughput services for fintech, logistics and e-commerce platforms. My work lives behind the interface: domain-driven service design, event streaming with Kafka, well-indexed PostgreSQL schemas and the observability that lets a team sleep at night.
I care about clear contracts, honest benchmarks and code a new teammate can read on their first day. I've led migrations from monoliths to services, cut p99 latencies by an order of magnitude and mentored engineers into owning production with confidence.
A double-entry payment ledger processing card and SEPA transactions. Event-sourced core with the transactional outbox pattern, idempotent consumers and exactly-once settlement reconciliation.
Real-time shipment tracking platform ingesting GPS telemetry from 30,000 vehicles. Stream processing computes ETAs and geofence events, exposed through low-latency gRPC and REST APIs.
Reactive API gateway and auth service with OAuth2 / OIDC, token introspection caching and per-tenant rate limiting — replacing three legacy auth stacks with one hardened entry point.
Monolith-to-microservices migration of an e-commerce inventory system using change-data-capture and the strangler-fig pattern, delivered without a single minute of planned downtime.
Got a system that needs to be faster, sturdier or simply finished? Send a request.
→ Email swathiwoodrumkitonu20@gmail.com → Phone +1 779 364 3460Omeed Familie