Full Stack Developer & AI Systems Builder
I'm Sandeep Nandi, a developer who enjoys transforming complex ideas into practical solutions. With experience in Next.js, React, Node.js, Express.js, PostgreSQL, MySQL, and MongoDB, I build applications that are reliable, efficient, and easy to maintain.
5
Months Internship
20+
APIs & Integrations
4+
Production Modules
10+
Backend/AI Tools
@ MatchBest Group
5 Months
India
Contributed to production-grade backend systems for logistics, CRM, real estate CMS, and HRMS products used by internal teams and clients. Developed REST APIs, authentication flows, database architectures, and third-party integrations that streamlined business workflows, improved operational efficiency, and supported scalable product growth.
File retrieval agent
People waste time searching Drive folders when they only remember partial file names or context.I built an AI retrieval agent using FastAPI, LangChain, RAG, vector search, and Google Drive APIs.It turns vague file queries into relevant Drive file and link recommendations.
Users
Drive users
Built for people who remember file context but not exact names.
Problem solved
Faster discovery
Converts vague queries into relevant Drive file and link suggestions.
Usage
Demo project
Designed as a practical AI retrieval workflow for portfolio review.
End-to-end outreach pipeline
Finding the right decision-makers and sending outreach manually was slow, repetitive, and hard to scale. I built a Node.js automation pipeline that discovers companies, finds verified contacts, enriches lead data, and prepares personalized emails with safety checkpoints. It turns cold outreach from a manual workflow into a structured backend system with rate limits, retries, review steps, and CSV reporting.
Users
Sales teams
Built for teams that manually research leads and decision-makers.
Problem solved
Less manual work
Automates company discovery, contact enrichment, review, and email preparation.
Usage
CLI workflow
Made for repeatable outreach runs with CSV reporting and safety checks.
Network programming package
Most email validators only check format, but real deliverability depends on DNS, MX records, SMTP behavior, and network failures.I built a Node.js email verification utility using DNS/MX lookup, SMTP checks, sockets, and timeout handling.It demonstrates production-minded backend validation beyond simple regex checks.
Users
Developers
Built for backend developers who need deeper email validation.
Problem solved
Better checks
Goes beyond regex with DNS, MX, SMTP, socket, and timeout handling.
Usage
npm package
Published as a reusable package for project integration.
Campus communication platform
College updates were scattered across WhatsApp groups, notices, and informal channels.I built a full-stack campus communication platform with authentication, RBAC, search, and filtering.It gives students and admins one organized place to publish, manage, and discover updates.
Users
Students & admins
Built for campus users who need one place for college updates.
Problem solved
Organized updates
Replaces scattered WhatsApp and notice workflows with searchable posts.
Usage
Academic demo
Presented as a full-stack campus communication product.
Solved
--
Questions solved
Rank
# --
Syncing profile
Easy
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Medium
--
Hard
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Solved
238
Problems solved
Score
661
Rank
# 21
Streak
12
Manual profile data
School
0
Basic
27
Easy
98
Medium
110
Hard
3
Tracks my GFG practice profile alongside LeetCode, showing solved problems, coding score, rank, streak, and difficulty-wise progress.
Phone
+91 9728911658Location
India
Availability
Open to opportunities
Response window
Usually replies within 24 hours for backend roles, internship extensions, and project collaboration.
Download Resume
