Kumar Sai U.

Key Skills

Software

Labelbox

Snorkel AI

Argilla

Top Subject Matter

Software Engineering & Web Development

Artificial Intelligence & Machine Learning

Healthcare & Medical Technology

Top Data Types

Text

Image

Document

Top Task Types

Prompt + Response Writing (SFT)

Computer Programming/Coding

Function Calling

RLHF

Fine-tuning

Red Teaming

Evaluation/Rating

Question Answering

Text Generation

Data Collection

Freelancer Overview

Full Stack Software Engineer and AI Agent Developer. Brings professional experience in building scalable REST APIs, HIPAA-compliant medical platforms, and intelligent database agents. Expert in Java Spring Boot, MERN stack, and containerized deployments using Docker.

Labeling Experience

Prompt Engineer/AI Agent Developer (PostgreSQL AI Agent Project)

TextPrompt + Response Writing (SFT)

Developed a natural language interface for PostgreSQL using LangChain and the OpenAI API, focusing on prompt engineering and query generation workflows. Designed and iterated on prompts for various agent modes, enabling AI systems to interpret user inputs and generate accurate SQL queries. Conducted evaluation and refinement of AI responses to enhance system reliability and user accessibility. • Engineered multi-mode prompt templates with schema-aware logic. • Labeled and rated AI-generated SQL outputs for safety and compliance. • Fine-tuned prompt tasks for natural query writing and hybrid logic chains. • Used internal/proprietary tools and OpenAI API for prompt testing and data annotation.

2026 - 2026

Education

Work History