Financial Technology That Powers Banking at Scale
When your systems process millions of daily transactions and guard highly sensitive financial data, failure is not an option. We architect authentication platforms, big data reporting systems, and cloud-native infrastructure that banking institutions trust.
Proven at Banking Scale
From zero-trust OAuth2 platforms securing 10M+ daily logins across hundreds of banks to big data systems processing millions of daily transactions, our solutions power mission-critical financial infrastructure. We don't build prototypes—we deliver production-grade systems that pass regulatory audits and run under real banking load.
Core Capabilities
Zero-Trust Authentication & Authorization
Enterprise OAuth2/OIDC platforms with custom session management, GraalVM Native performance (68-92ms latency), and complete BaFin compliance. Serving millions of daily users with 99.9% uptime.
- 10M+ daily users
- 71% latency reduction
- €4.92M annual savings
- BaFin audits passed without findings
Big Data Transaction Processing
Event-driven platforms processing millions of transactions daily with Kafka, Pub/Sub, and PostgreSQL partitioning. Auto-scaling cloud architecture handling 10,000+ TPS peaks with sub-200ms P99 latency.
- 2-4M daily transactions
- 10,000+ peak TPS
- <200ms P99 latency
- 50% cost reduction
Cloud-Native Modernization
Transform legacy banking systems to Kubernetes with near-zero customer-visible downtime. GraalVM Native compilation achieving 60x faster startup and 71% infrastructure cost reduction while maintaining regulatory compliance.
- 99.9% uptime maintained
- 60x startup speed
- €200k annual savings
- Full compliance
High-Performance Data Access
Sophisticated PostgreSQL partitioning, JPA lazy-loading optimization, and Redis+Kafka hybrid architectures. 100x query performance enabling real-time reporting on massive transaction volumes.
- 100x query speed
- 80% Redis workload reduction
- Real-time reports
- Elastic scaling
Technology Foundation
Battle-tested technology combinations proven under extreme load in production financial systems:
Backend & Performance
Java 21, Spring Boot 3.x, Spring Authorization Server, GraalVM Native, Quarkus, Kotlin, Node.js
Data & Messaging
PostgreSQL (partitioning, BDR), Redis+Kafka session management, Google Pub/Sub, Event sourcing, JSR-107 caches
Cloud & Infrastructure
Kubernetes, GKE, Azure, Istio service mesh, Envoy proxy, Docker, Terraform, ArgoCD GitOps
Security & Compliance
OAuth2/OIDC, mTLS, Zero-Trust architecture, Keycloak, BaFin compliance, SOC 2 Type II
Proven Track Record
Enterprise OAuth2/OIDC Platform for Hundreds of Banks
Challenge:
Build a zero-trust authentication platform for hundreds of cooperative banks with around 10M+ daily users and double-digit billions in annual account bookings and payment flows. Required 100% backward compatibility with non-standard legacy OAuth2 while meeting strict BaFin compliance.
Solution:
Architected Spring Authorization Server platform with custom Redis+Kafka session management. Implemented smart Envoy routing for migration with no customer-visible downtime. GraalVM Native optimization achieved 71% latency reduction (300-500ms → 68-92ms) and 247% throughput increase.
Results:
- 10M+ daily users across hundreds of banks
- Double-digit billions in annual account bookings protected
- 71% latency reduction (now 68-92ms)
- €4.92M/year savings vs Auth0 Enterprise
- BaFin audits passed without findings
- <0.001% session loss during migration
Big Data Reporting Platform for Retail Banking
Challenge:
Replace 20-year-old manual reporting system processing 2-4 million daily card transactions across thousands of retail locations. Each location with unique terms, complex loyalty programs, requiring real-time processing with no customer-visible downtime.
Solution:
Built event-driven platform on GKE with Kafka/Pub/Sub messaging. Implemented PostgreSQL partitioning and sophisticated JPA lazy-loading for massive data volumes. Google Cloud Functions (Java/Python/NodeJS) for elastic scaling from zero to 10,000+ TPS based on actual load.
Results:
- 2-4M daily transactions processed
- 10,000+ peak TPS handled
- <200ms P99 latency under load
- 50% infrastructure cost reduction (€180k/year)
- 100x query performance improvement
- 20-year legacy system replaced