Rajat Kandpal — Backend Developer

RK

Rajat Kandpal Backend Developer

Available for opportunities

BACKEND DEVELOPER

& CS STUDENT

Passionate about building scalable, reliable backend systems. Specialize in transforming complex problems into elegant architecture.

0 CGPA (B.TECH CSE)

0 LEETCODE PROBLEMS SOLVED

0 PROJECTS BUILT

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RECENT

PROJECTS

01

API Rate Limiter

Reverse proxy gateway with JWT auth, 3 rate-limiting algorithms (Token Bucket, Sliding Window, Fixed Window) via Redis, Docker Compose.

JavaSpring BootRedisDocker

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02

SecurePass

Engineered a production-grade password security library in Java — no frameworks, no shortcuts. Raw cryptography with PBKDF2, secure salting, and constant-time validation to eliminate attack surfaces entirely.

JavaSecurityLibrary

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03

QueueCTL

CLI background job queue, worker threads, exponential-backoff retries, Dead Letter Queue, PostgreSQL persistence, Spring Boot + Spring Shell.

Spring BootPostgreSQLCLI

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MY

JOURNEY

Sep 2025 – Oct 2025 Internship

Cloud Computing Intern

Remote

Cloud Computing virtual internship. Worked with AWS S3 storage, IAM roles and policies, and deployed applications via AWS Elastic Beanstalk.

2023 – 2027 Education

B.Tech, Computer Science

Pranveer Singh Institute of Technology

Coursework in DSA, OOPs, Computer Networks, DBMS. Currently maintaining a CGPA of 8.25.

TECH

STACK

Java

Programming Language

Spring Boot

Backend Framework

PostgreSQL

Database

Redis

In-Memory Data Store

Docker

Containerization