CONNECTION ESTABLISHED · OPEN TO SENIOR ROLES

DEBASHIS NANDY

> SENIOR FULL-STACK ENGINEER · REACT · NODE.JS · TYPESCRIPT · REAL-TIME SYSTEMS

5+ years building real-time, scalable web applications end to end. Event-driven backends — Socket.io, Redis Pub/Sub, Express — high-performance React frontends, and AI/LLM systems with RAG. I replaced a paid chat SaaS with software I wrote.

./initiate_contact github ↗linkedin ↗

Pune, India // dnandy.work@gmail.com // +91 85838 58959

SUBJECT_ID // DN-2026REC ●

5+YEARS SHIPPING

1SAAS REPLACED IN-HOUSE

4DEVS MENTORED

RAGLLM SYSTEMS IN PROD

[01]

EXPERIENCE.LOG

// tail -f career.log — newest first

Senior Software Engineer

Cybage Software Pvt. Ltd. · Pune, India

JUN 2022 — PRESENT

Architected and shipped a full-stack real-time chat platform to replace SendBird, cutting subscription costs — React/TanStack Query/Redux Toolkit front end, Express.js/Socket.io/Prisma back end.
Built a scalable Express.js + Prisma backend with Redis (ioredis) caching, pipelined query batching and rate limiting; chat messages stored and searched in MongoDB with Mongoose; containerized with Docker, documented via Swagger.
Refactored complex React modules around the Context API for reusability and rendering performance (Lighthouse, React Profiler); delivered responsive interfaces across React/Redux and Angular with GSAP animation.
Mentor four junior developers, lead internal frontend training, and use AI development tools (Claude Code, Antigravity) to accelerate development, debugging and code review.
Hardened reliability with end-to-end coverage (Playwright, mock APIs) and automated build, test and deployment of Dockerized Node.js/Next.js services through a Jenkins CI/CD pipeline.

Senior Full-Stack Developer

Abchi Technologies Pvt. Ltd.

FEB 2021 — JUN 2022

Built backend services in Node.js with Express.js and Nest.js across multiple industries including e-commerce; developed frontends with React, Redux and React Router, with hands-on Next.js and Gatsby.js.
Designed client-facing UIs with Tailwind CSS, Bootstrap and Materialize CSS; mentored interns and partnered closely with clients on delivery.

[02]

KEY_PROJECTS

// ls -la ~/projects — click a card to expand the architecture

[03]

STACK.MATRIX

// grep -r skills/ — hover to decode

LANGUAGES

TypeScriptJavaScriptPython

FRONTEND

ReactNext.jsRedux ToolkitTanStack QueryRxJSZustandshadcn/uiTailwind CSSGSAP

BACKEND

Node.jsExpress.jsNest.jsSocket.ioPrismaPostgreSQLMongoDBMongooseRedis (ioredis)

AI & LLM

AnthropicOpenAIGoogle AIVercel AI SDKLangChainQdrantRAG

CLOUD & DEVOPS

GCPAWS (EC2, Lambda)DockerJenkinsCI/CDServerless FrameworkGitHub / Gerrit

PRACTICES

REST API DesignSystem ArchitectureReal-Time SystemsRAGE2E Testing (Playwright)Performance Optimization

▲ IN PROGRESS: GCP Professional Cloud Developer certification

[04]

RECORDS.DB

2021

Master of Computer Applications

Brainware University

2019

Bachelor of Computer Applications