Enterprise system architecture (DDD, layered architecture, microservices)
Event-driven systems with high throughput and reliability
AI Agent applications and LLM workflow systems (multi-agent frameworks)
Backend engineering with Golang, C#/.NET Core, NodeJS, Python
API design: RESTful services and GraphQL for complex data integration
Database engineering: PostgreSQL, MySQL, MS SQL Server, T-SQL
Query optimization and performance tuning using execution plans
Cloud architecture and DevOps on AWS (EKS, RDS, S3, CloudFront) and Azure
Web3 development: Solidity, ERC-20 smart contracts, Hardhat testing