- Python (main), Go, C++.
- Core: FastAPI (backend) + Vue.js (frontend), clean code & reproducible pipelines.
- AI/ML: RAG (also GraphRAG), Langchain (+ Langfuse), Ollama, OpenAI/Gemini API, prompt engineering, Gymnasium, stable-baselines3, DRL.
- Databases: Neo4j, Redis, PostgreSQL, SQLite.
- DevOps/Infra: Docker, CI/CD (Github Actions), Railway, basics of Kubernetes & GCP.
- AI Tools: Proficient in utilizing AI tools like Claude Code and Cursor to accelerate daily coding.
- Other: RabbitMQ, Git, Linux, microservice architecture, GraphQL (in Go).