Backend Engineer

ProfileSuraj Kumar

Software Engineer with 4.5+ years of experience building scalable backend systems, real-time platforms, and AI-powered applications. From 0 → production.

Currently BuildingAgentic Workflow EngineDeveloping a multi-agent system for automated code refactoring using LangGraph.

Technical Arsenal

Backend
Node.jsExpress.jsFastifyTypeScriptSocket.IOTypeORMSequelizeMongoose
Frontend & UI
React.jsRedux ToolkitTailwind CSSResponsive Design
Databases & Caching
PostgreSQLMySQLMongoDBRedisRabbitMQ
Cloud & DevOps
AWS (EC2, S3)Oracle CloudDockerNGINXPM2CI/CDGitHub Actions
AI / LLM
LangChain.jsRAGMongoDB Vector StoreOpenAIGeminiMistral
Other
MicroservicesREST APIsSSOOAuth/OIDCKeycloakSentryVitestSwagger/OpenAPI

Professional Experience

Full Stack Developer

Debut Infotech Pvt Ltd.Contractual
Nov 2025 — Jan 2026

GuardianVets Analytics Platform

Problem: Hospital analytics dashboard needed timezone-aware aggregation across dual databases serving 200+ hospital entities.

Solution: Architected RESTful APIs computing call volume, outcomes, revenue ROI, and hourly trends with timezone-aware aggregation across PostgreSQL and MongoDB.

Result: Delivered a production-ready analytics dashboard serving data for 200+ hospital entities with real-time consistency.

Full Stack Developer

Inclusion Software SolutionsFull Time
July 2023 — September 2025

myCityHunt Live

Problem: Building a location-based multiplayer game from scratch supporting up to 8 teams × 8 players with real-time tracking.

Solution: Spearheaded backend development using Node.js, TypeScript, Express.js, TypeORM, Redis, and AWS — with ticket purchases, invitation/QR code joining, and real-time tracking & chat via Socket.IO.

Result: Delivered a production-ready multiplayer game from 0 to launch with seamless real-time experience.

Node.js Developer

tecHindustanFull Time
August 2021 — June 2023

Integration-Engine (NPM Package)

Problem: Duplicate third-party store integration code across multiple client projects slowed delivery timelines.

Solution: Designed and published a reusable NPM package that centralized third-party store integrations across multiple client projects.

Result: Reduced duplicate development effort and accelerated delivery timelines across the organization.

Education

Bachelor of Technology in Computer Science Engineering

SIRDA Institute of Engineering & Technology
Sunder Nagar, Himachal Pradesh
March 2021

Featured Engineering

Microservices / AI Platform

ResuMap

About

A microservices-based AI platform that generates job-specific, ATS-optimized resumes using LangChain.js and vector-based retrieval.

The Problem

Resume tailoring is a manual, time-consuming process prone to keyword mismatch and ATS rejection.

The Result

Built a microservices-based AI platform with RabbitMQ for async processing, Socket.IO for real-time updates, and deployed on Oracle Cloud with NGINX and PM2.

React.jsNode.jsSocket.IORabbitMQLangChain.jsOpenRouterMongoDBTailwind CSSOracle Cloud

Let's Build Something Scalable

Whether you have a question about backend architecture, AI integration, or just want to connect.

+91-9459191752India