Web3 Talent

Senior Java Engineer (7 Years) | High-Load Fintech & Low-Latency Systems

I don't just write code; I engineer stability for financial systems where data loss or downtime costs millions. Transitioning from TradFi/Fintech to Web3 to solve complex infrastructure challenges.

Why I am a match for Crypto/Exchanges: I specialize in fixing bottlenecks in high-throughput environments. My recent wins include:

• Performance: Architected a priority queuing system (Kafka) that reduced P99 latency from 4.3 min to 182ms for live payments.
• Scale: Tuned Kafka internals to handle traffic spikes, reducing topic lag from 60,000 to <10 messages under peak load.
• Integrity: Designed a recovery mechanism that restored 4.5M+ financial records after a critical database failure.

Tech Stack: Java 21, Spring Boot, Apache Kafka (Deep Internals), Kubernetes, PostgreSQL, AWS.

Logistics:

• Location: Vietnam (GMT+7). Flexible working hours (overlap with EU/UK/US).
• Contract: Ready for immediate start via B2B (Independent Contractor). I handle my own taxes. No visa sponsorship needed to start.
• Relocation: Open to relocation for the right opportunity.