Sarad Rajbhandari

I build backend systems and AI agents in Java, and ship them to the cloud.

Nine years of Spring Boot services for payments and retail, now applied to agentic AI. Open the live projects below, try them, and read how they're built.

Projects

Small, complete systems: built end to end, deployed, and documented.

tutor.saradraj.dev

Live

Math with Pip, an AI math tutor for kids

Children aged 6–10 solve math problems while Pip, an AI tutor, coaches them with questions and hints instead of answers. A flashcard mode offers quick practice without the AI.

The AI coaches and code grades: a Java checker marks every answer, so the model can't leak an answer or mark a wrong one right.
Agent tool calling with Spring AI, with each tool scoped to the child's own session on the server.
No accounts and no personal data, with the API key kept in Secret Manager.

Java 21
Spring Boot 4
Spring AI
Claude
React
Docker
Cloud Run
Firebase Hosting

Open the tutor View the code

soccer.saradraj.dev

In progress

Youth soccer team helper

A tool for volunteer coaches and parents: rosters, game schedules, snack and carpool sign-ups, and a lineup planner that gives every child fair playing time.

Rotation planner that balances minutes and positions across a game and a season.
An AI assistant that turns "Sam leaves at halftime" into a new fair lineup.
Per-team data isolation and email reminders before each game.

Java 21
Spring Boot
PostgreSQL
Spring AI
Event-driven reminders

Opens when it's live

About

I'm a backend engineer and application architect with nine years of experience building Java and Spring Boot services, most recently for payments at Western Union, and before that at Lululemon, Homesite, Electronic Arts and Elsevier.

I'm an AWS Certified Developer and a Certified ScrumMaster, and I'm looking for senior software engineering and agentic AI roles.

Connect on LinkedIn or browse the code on GitHub.