I am a Backend Engineer specializing in building fault-tolerant, high-throughput systems. Currently, I architect financial infrastructure at OneCard, serving over 3 Million+ active users.

I move beyond simple CRUD applications to solve complex concurrency, consistency, and scalability challenges.

Languages

Frameworks & Infrastructure

Core Competencies
Distributed Sagas Event-Driven Architecture Reactive Programming (Netty) System Design

• Scaling Digital Gold: Decoupling monolithic logic into event-driven microservices to handle high-frequency trading.
• Golang Cloud Patterns: Implementing efficient cloud-native patterns (like S3 Presigned uploads) to reduce server load.
• Reliability Engineering: Implementing Temporal.io workflows to ensure eventual consistency in financial transactions.

• 🚀 Throughput +40%: Migrated blocking I/O services to a Reactive (Netty) model to handle marketing spikes.
• 🛡️ ACID Compliance: Designed a 'Gold Leasing Saga' to handle multi-step financial transactions without data loss.
• 📉 Latency Reduction: Optimized complex PostgreSQL CTEs and implemented Distributed Locking with Redis.