Hi, I am Rajesh Charhajari

Software Engineer

About

Lowkey obsessed with building scalable, high-performance apps and occasionally breaking prod in the name of experiments

HTML

CSS

JavaScript

TypeScript

Python

ReactJS / NextJS

TailwindCSS

NodeJS

FastAPI

Express

SQL

PostgreSQL

MongoDB

Redis

LangChain

LangGraph

Docker

Kubernetes

AWS

GCP

Hashedin by Deloitte

Jul 2024 - Nov 2024

Pune

•Built an internal employee marketplace using ReactJS, NodeJS, and PostgreSQL to enable secure item listing, buying, and selling within the organization.
•Developed and optimized REST APIs with ExpressJS and Prisma, featuring advanced filtering and JWT-based authentication for secure access control.
•Implemented user dashboards to manage transactions, approvals, and history, ensuring reliability through Zod validation and Jest testing.

Rethink Ledgers

Nov 2022 - Mar 2024

Pune

•Developed secure authentication systems using JWT, OAuth2, and PassportJS with middleware for validation, rate limiting, and logging to enhance security and performance.
•Integrated real-time communication with WebSocket and managed file handling via AWS S3 for seamless user interaction and data delivery.
•Automated data workflows using Node-Cron and implemented online payments with Razorpay APIs for real-time transaction tracking and notifications.

Allianz Technology

Feb 2022 - Jul 2022

Pune

•Created dynamic logic scripts for document automation workflows based on business rules.
•Designed and executed complex SQL queries for data extraction, transformation, and presentation to meet client needs.
•Collaborated with teams to ensure data accuracy and streamlined processing in enterprise reporting tools.

•Built a full-stack video sharing platform with support for video uploads, thumbnails, metadata, likes, comments, shares, and channel subscriptions.
•Implemented HLS (HTTP Live Streaming) using FFmpeg to transcode uploaded videos into segmented .ts files and an .m3u8 playlist, enabling faster startup and adaptive video streaming.
•Developed channel analytics including subscriber count, total videos, total views, and a personalized subscription management system.
•Designed a scalable cloud-based architecture using AWS S3 for storage, AWS SQS for asynchronous video processing, AWS EC2 for backend services, and AWS CloudFront for low-latency content delivery.