Welcome to my GitHub profile! I'm a passionate Financial Services Engineer specializing in high-performance Java microservices, fintech infrastructure, and modern concurrent computing.
- Financial Services Architecture: Building robust payment processing, settlement, and clearing systems
- High-Performance Computing: Leveraging Java 21 Virtual Threads, Generational ZGC, and reactive patterns
- Real-Time Systems: Trading engines, FX pricing, fraud detection
- Enterprise Integration: ISO 20022, ISO 8583, FIX protocol adapters and gateways
- Resilience & Observability: Circuit breakers, distributed tracing, audit logging
- trade-matching-core - High-performance, sharded L3 matching engine with WebSocket push
- fx-core - FX pricing service with currency triangulation and risk-spread calculation
- json-fix-bridge-core - JSON-to-FIX trading gateway with Virtual Threads
- instant-payments-core - Event-driven payment processing engine with Kafka and idempotency
- clearance-core - Financial middleware for the clearing phase
- settlement-core - High-performance settlement engine with net amount calculations
- reconciliation-core - Self-healing payment reconciliation with 100% consistency
- tokenization-vault-core - Format-Preserving Encryption (FPE) for Primary Account Numbers
- vault-core - High-security microservice for sensitive data handling
- aml-core - Anti-Money Laundering transaction monitoring service
- auth-core - JWT-based authentication with Kafka event broadcasting
- Mesh-Core - Financial Service Mesh with Zero-Trust mTLS and PCI-DSS tokenization
- sentinel-core - Real-time fraud detection with Kafka Streams and weight-based scoring
- iso-20022-messaging-core - ISO 20022 messaging with precision validation
- iso8583-adapter-core - Legacy ISO 8583 protocol transformation
- iso8583-iso20022-mapper-core - ISO 8583 to ISO 20022 bridge
- fix-iso20022-mapper-core - FIX to ISO 20022 messaging gateway
- observability-core - Three Pillars observability (Logs, Metrics, Traces)
- resilience-core - Resilience4j-based reliability patterns
- bulkhead-core - Fault isolation with Bulkhead pattern
- idempotency-core - Distributed idempotency with Redis & Lua
- webhook-core - High-performance webhook engine with HMAC signing
- config-core - Centralized configuration engine
- fees-engine-core - High-performance fee calculation
- audit-core - Asynchronous audit logging with Virtual Threads
- notification-core - High-concurrency notification engine
- strangler-fig-core - Legacy modernization patterns
- ledger-core - Immutable SQL Ledger with PostgreSQL 18 & UUID v7
- leetcode-solutions - Algorithmic patterns and data structures in Java
Languages & Runtimes:
- Java 21 (Virtual Threads, Records, Pattern Matching)
- PLpgSQL (PostgreSQL)
Frameworks & Libraries:
- Spring Boot 3.4 & Spring Cloud
- Kafka & Kafka Streams
- Resilience4j
- Netty & QuickFIX/J
- Micrometer, Prometheus, Zipkin
Infrastructure:
- PostgreSQL 18
- Redis (Distributed Caching & Idempotency)
- Docker & Kubernetes
- GitHub Actions (CI/CD)
Security & Compliance:
- JWT Authentication
- HMAC-SHA256 Signing
- Format-Preserving Encryption (FPE)
- PCI-DSS Compliance
- Zero-Trust mTLS
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Microservices Architecture - Event-driven, reactive, distributed systems
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High-Concurrency Systems - Java 21 Virtual Threads for thousands of concurrent tasks
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Financial Domain - Payments, Trading, FX, settlement, clearing
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Protocol Integration - ISO 20022, ISO 8583, FIX, SWIFT
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Data Consistency - Idempotency, distributed transactions, reconciliation
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Observability - Structured logging, distributed tracing, metrics collection
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Resilience - Circuit breakers, retries, timeouts, bulkheads
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Security - Encryption, tokenization, Zero-Trust architecture
- πΌ Open to discussions on fintech architecture, trading systems, Java performance optimization, and distributed systems
- π Always exploring emerging patterns in financial technology
- π¬ Feel free to star β repositories that interest you!
Most projects are open-source. Refer to individual repositories for specific licensing details.
Built with β Java, π Spring Boot, and πͺ resilience.