Open to opportunities

zhongtian dai

@zhongtiandai

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I build full-stack and AI agent applications with Java, Spring Boot, React, and Python.

Poland

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What I'm looking for

I'm seeking a software engineering internship where I can contribute to real-world development, work with emerging technologies such as AI agents, and continue strengthening my engineering skills.

I've built a full-stack platform at Herbs Are My World using Java, Spring Boot, React, PostgreSQL, and REST APIs, including authentication, role-based access control, customer management, PDF processing, and AI service integration.

I also developed a Python/FastAPI AI agent that uses agentic RAG, hybrid BM25/vector retrieval, metadata filtering, evidence reranking, citation verification, and safety checks to answer company-specific questions from an approved knowledge base. Previously, I tested production game builds at Lionbridge Games, documenting defects and verifying fixes through regression testing.

Alongside my Computer Science studies at Warsaw University of Technology, I build practical software projects across C++, C, Java, Spring Boot, MATLAB, and SQL. I placed 101st out of 1,983 participants in HackerRank's 2026 AI Agent hackathon with a safety-first multimodal WhatsApp notification router.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack & AI Agent Developer Intern

Current

Herbs Are My World

Jul 2026 - Present (3 months)

Developed a full-stack platform using Java, Spring Boot, React, PostgreSQL, and REST APIs, covering authentication, role-based access control, customer management, PDF report processing, and AI service integration. Built a Python/FastAPI AI agent using agentic RAG to answer company-specific questions from an approved knowledge base.

Java Spring Boot React PostgreSQL REST APIs Spring Security JWT JPA Docker GitHub Actions Python fastAPI RAG BM25 Vector Search

Education

Degrees, certifications, and relevant coursework

Warsaw University of Technology

Bachelor of Science, Computer Science

Pursuing a Bachelor of Science in Computer Science with expected graduation in June 2027. Coursework includes programming fundamentals, data structures, algorithms, and numerical methods.