
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