KOCA VENTURES LTD
71-75, Shelton Street, Covent Garden
London, WC2H 9JQ, UNITED KINGDOM
Registered in UNITED KINGDOM, Number 16231043
TRANSACTION SYSTEMS
Financial Systems Built for1M+ Transactions Per Second
We architect and build high-throughput payment rails, banking ledgers, and settlement systems — using TigerBeetle, Kafka, and gRPC for throughput that generic databases cannot match.
WHAT WE BUILD
Transaction Architecture That Scales
01
TigerBeetle Ledger Core
Purpose-built financial database with ACID guarantees processing 1M+ transactions per second — 10–100x faster than PostgreSQL for ledger workloads.
02
Event Streaming with Kafka
Apache Kafka backbone for durable, ordered transaction event streams. Replay, audit, and fan-out to downstream services with zero data loss.
03
gRPC Microservice APIs
High-performance, type-safe gRPC interfaces between services. Binary protocol delivers 7–10x throughput over REST for inter-service financial calls.
04
Real-Time Fraud Detection
Graph neural network anomaly detection flags suspicious transactions in under 100ms without blocking the payment flow.
CASE STUDIES
Transaction Systems We've Built
01
Atmosverde Carbon Ledger
Double-entry carbon credit ledger tracking enterprise buyer purchases and verified supplier issuances in real time, with immutable audit trail and reconciliation dashboards.
02
Payment Network Prototype
Proof-of-concept banking payment rail built on TigerBeetle and Kafka achieving 800K transactions per second on commodity hardware.
FREQUENTLY ASKED
Transaction Systems FAQ
What is a custom financial transaction system?
A custom financial transaction system is purpose-built software for processing high-volume payments, ledger entries, or transfers — designed around your business rules, compliance requirements, and throughput targets, rather than generic banking middleware.
What is TigerBeetle and why use it for financial systems?
TigerBeetle is a purpose-built financial transactions database with strict ACID guarantees, hardware-level safety, and 1M+ TPS throughput. It outperforms PostgreSQL by 10–100x for double-entry ledger workloads and is designed to never corrupt financial data.
How fast can your transaction systems process payments?
Systems built on TigerBeetle and gRPC can handle 1M+ transactions per second with sub-millisecond latency, suitable for banking core systems, payment networks, and high-frequency trading settlement.
How does Kafka fit into a financial transaction architecture?
Kafka acts as the durable event log between services — every transaction event is written to Kafka first, ensuring no data loss even if downstream consumers fail. It also enables audit replay, real-time analytics, and fan-out to reporting and fraud systems.
What compliance standards can your fintech systems meet?
Our systems are architected for PCI DSS compliance, GDPR data residency, and SOC2-aligned audit logging. We provide architecture review support for regulatory approval processes in banking and payments.
TRANSACTION SYSTEMS BY SECTOR
Financial Infrastructure Across Industries
READY TO BUILD?
Build Your Transaction System
Tell us your throughput requirements, compliance constraints, and timeline. We'll recommend the right architecture and give you a clear scope.