Available for Developer Roles

Crafting
Robust Architectures.

Backend Engineer focused on building high-performance distributed systems, real-time data pipelines, and scalable cloud architectures.

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Professional Journey

Building scalable, high-performance distributed systems and real-time data pipelines.

Aug 2025 – Present

Software Development Engineer I

ITH Technologies pvt. ltd.
Remote
  • /Designed and implemented a 3-tier Portfolio Snapshot System reducing API latency to <5ms.
  • /Engineered a high-throughput sync engine updating 100K+ user profiles every 5 minutes.
  • /Scaled backend to handle 1,200+ RPS, validated via k6 load testing.
  • /Optimized complex multi-level referral hierarchies using PostgreSQL ltree.
  • /Built resilient background processing using BullMQ + Redis with exponential backoff.
Node.jsRedisPostgreSQLKafkaBullMQAWS
Sep 2024 – July 2025

Software Development Engineer I

BrainAlive AI
Noida, U.P
  • /Engineered scalable backend services using NestJS for user referral systems.
  • /Developed real-time leaderboard system using Kafka and Redis with O(log n) complexity.
  • /Implemented tree-based referral system in PostgreSQL using ltree for 7-level hierarchies.
  • /Deployed Kafka Connect CDC pipeline for immutable archival and analytics.
  • /Managed MongoDB Time-Series collections with timezone normalization (UTC).
NestJSKafkaMongoDBSocket.IOPostgreSQL
Mar 2024 – Aug 2024

SDE intern

Feedants
Pune, Maharashtra
  • /Engineered a responsive frontend with React, reducing page load times by 40%.
  • /Built robust backend with Express, implementing RESTful APIs for seamless data flow.
ReactExpressNode.jsJavaScript

Featured Projects

A selection of my recent work in fintech, AI, and distributed systems.

All Works

Pay Ease (Payment-app)

A Paytm-inspired payment app with P2P transfers and net banking support. Built with Turborepo for scalability and security.

Next.jsTypeScriptPrismaNextAuthDocker

AI-Driven Netflix

Netflix-like platform with AI integration using GPT-3.5 Turbo for personalized recommendations and optimized loading.

ReactReduxFirebaseOpenAI APITailwindCSS

Portfolio Snapshot System

A 3-tier sync engine (Redis → PostgreSQL → External DB) reducing API latency to <5ms for 100K+ user profiles.

Node.jsRedisPostgreSQLKafkaWorker Threads

Technical Arsenal

A comprehensive set of tools and technologies I use to build robust, scalable applications.

Backend & Frameworks

Node.js
NestJS
Express
Socket.IO
REST APIs
gRPC

Data Stores & Streaming

PostgreSQL
MongoDB
Redis
Apache Kafka
Kafka Connect
CDC

Languages & Core

TypeScript
JavaScript
C++
Distributed Systems
Scaling
System Design

DevOps & Tools

Docker
Linux
AWS (EC2/S3)
Git
Husky CI
BullMQ

Let's build something
extraordinary.

Currently open to new opportunities and interesting collaborations in the backend and distributed systems space.

© 2026 Gagan Sharma.