kunal sahu

I’m a Founding Engineer with 3 years building fullstack products at scale, with a focus on backend reliability, performance, and clean user-facing experiences.

At Outflo, I built a scalable scheduler and event-driven system using Amazon SQS, AWS Lambda, and PostgreSQL—reliably processing 50K events per day. I also redesigned LinkedIn automation workflows from a flat, sequential model to a tree-based decision system for more flexible campaign logic.

Previously as a Software Development Engineer, I designed and built a notification service for lead nurturing and feature promotion using Node.js, RabbitMQ, and Firebase Cloud Messaging (FCM). I re-designed backend subscription and authentication with role-based access control and JWT authentication, and improved PostgreSQL performance through index tuning and replication.

I enjoy end-to-end engineering: I built an SEO-optimized medicine marketplace with Node.js, Next.js, React, and Zustand (2-second load time, Lighthouse score of 94) and optimized React Native performance by reducing startup time, improving FPS, and lowering native heap usage. I also create reusable UI engineering assets, such as React libraries with virtualized tables, and I’ve built projects like a Lexical-based rich text editor and a WebGL draw-and-extrude tool.