Hi, I'm Sandeep

I ship production apps that don't break at 3 AM. Full Stack Dev & DevOps Engineer. MERN, AWS, and a dangerous amount of chai.

SS

About

I have a Master's in Political Science and zero CS credentials, which means every line of code I write, I chose to write. Since 2022, I've shipped 15+ production platforms across EdTech, FoodTech, SaaS, agriculture, and e-commerce. Not tutorials, not side projects, real products with real users paying real money. I own the full stack: React/Next.js frontends, Node.js APIs, MongoDB/PostgreSQL databases, Docker containers, and AWS infrastructure that runs at $67/month instead of $670. I've passed Amazon's SP-API security audit as a solo engineer, survived a grey-box pentest with zero open vulnerabilities, and somehow still find time to ride my bike through Punjab on weekends. Currently building at Designing Solutions in Mohali, where I lead cross-functional teams and turn "we need this yesterday" into "it's already deployed."

4+Years Shipping Code
15+Production Platforms
0Pentest Vulnerabilities
$67/moAWS Infra (PrepVia)

Work Experience

D

Designing Solutions

April 2024 - Present
Full Stack Developer & DevOps Engineer
Shipped 7+ production platforms end-to-end, from first commit to live users. Built PrepVia (100+ pages, 58+ DB models), a multi-marketplace logistics beast that handles Amazon, eBay, and Shopify integrations. Passed Amazon SP-API security compliance solo. No senior engineer, no security team, just me and a lot of OWASP documentation. Survived a professional grey-box pentest: 8 findings, all fixed in 24 hours, zero open on retest. Own the entire DevOps pipeline across all projects: Docker, AWS (EC2, S3, Lambda, CloudFront, SES, SQS), Nginx, Cloudflare WAF, and CI/CD via GitHub Actions. Integrated AI (OpenAI, Claude, OpenRouter) into production SaaS serving global users. Lead a cross-functional team of devs, designers, and PMs.
C

Contriverz

December 2023 - August 2024
Full Stack Developer
Built supply-chain traceability platforms that track cotton and rice from farmer to fashion brand across 5+ production stages. Think: a farmer in Rajasthan picks cotton, and the system follows it through ginning, spinning, weaving, until a brand in Europe can verify its origin. Implemented role-based dashboards, geospatial maps, interactive charts, and PDF/Excel reporting for multi-stakeholder workflows.
C

Codesoftic Tech Pvt Ltd

August 2022 - November 2023
ReactJS Developer
Built 4 production frontends including an Internship Management System juggling 5 user roles (Student, Company, College, Mentor, Admin). The project that taught me systems thinking. When five different users need five different views of the same data, you learn architecture fast.
E

Excellence Technology

January 2022 - June 2022
Software Developer Trainee
Where it all started. Built an e-commerce platform and a Netflix UI clone during intensive training. Learned React, REST APIs, and the most important skill: how to learn new things fast. Went from "what's a component?" to shipping features in 6 months.

Skills

Frontend

ReactReact
Next.jsNext.js
TypeScriptTypeScript
JavaScript (ES6+)JavaScript (ES6+)
Tailwind CSSTailwind CSS
shadcn/uishadcn/ui
ZustandZustand
TanStack Query & RouterTanStack Query & Router
React RouterReact Router
Material-UIMaterial-UI
BootstrapBootstrap
SCSS/SassSCSS/Sass

Backend

Node.jsNode.js
Express.jsExpress.js
tRPCtRPC
Socket.ioSocket.io
Prisma ORMPrisma ORM
Mongoose ODMMongoose ODM
Knex.js/Objection.jsKnex.js/Objection.js
Sequelize ORMSequelize ORM
ZodZod
REST APIsREST APIs

Databases

MongoDBMongoDB
PostgreSQLPostgreSQL
PostGISPostGIS
MySQLMySQL
RedisRedis

Third-Party APIs

StripeStripe
PaddlePaddle
PayPalPayPal
Amazon SP-APIAmazon SP-API
eBay APIeBay API
Shopify APIShopify API
QuickBooksQuickBooks
HubSpotHubSpot
FirebaseFirebase
SupabaseSupabase
LogtoLogto
MapboxMapbox
SendGridSendGrid

DevOps & Cloud

DockerDocker
NginxNginx
GitHub Actions (CI/CD)GitHub Actions (CI/CD)
Cloudflare WAFCloudflare WAF
PM2PM2
pnpm Workspacespnpm Workspaces
Linux Server ManagementLinux Server Management

AWS

EC2EC2
S3S3
LambdaLambda
CloudFrontCloudFront
AmplifyAmplify
EventBridgeEventBridge
SESSES
SQSSQS
KMSKMS
MacieMacie
InspectorInspector

AI Integrations

OpenAI APIOpenAI API
Anthropic Claude APIAnthropic Claude API
OpenRouter AIOpenRouter AI
Tesseract OCRTesseract OCR
AI Data PipelinesAI Data Pipelines
LMS (Blackboard, Canvas)LMS (Blackboard, Canvas)

Security

OWASP Pentesting & RemediationOWASP Pentesting & Remediation
SP-API DPP ComplianceSP-API DPP Compliance
SAST/DAST (Semgrep, ZAP, Dependabot)SAST/DAST (Semgrep, ZAP, Dependabot)
AWS Macie DLPAWS Macie DLP
Amazon InspectorAmazon Inspector
Custom Detection & ResponseCustom Detection & Response
better-auth MFA/TOTPbetter-auth MFA/TOTP

Tools & Monitoring

GitGit
GitHubGitHub
BitbucketBitbucket
PostmanPostman
SentrySentry
PostHogPostHog
Highlight.runHighlight.run
WinstonWinston
VS CodeVS Code
My Projects

Stuff I've actually shipped

Not tutorials. Not Todo apps. These are live platforms with real users and real revenue.

PrepVia

PrepVia

The big one. Multi-marketplace logistics platform handling Amazon FBA/FBM, eBay & Shopify sellers. 100+ pages, 58+ models, 46 tRPC routers, zero security vulnerabilities. AI-powered data pipeline, enterprise-grade auth, and an AWS bill that'd make a CTO smile ($67/mo). Passed Amazon's SP-API security audit as a solo engineer.

Next.js
TypeScript
tRPC
Prisma
MongoDB
Stripe
Amazon SP-API
eBay API
Shopify API
QuickBooks
HubSpot
Docker
AWS
DinnerTwine

DinnerTwine

Multi-app social dining platform — 3 separate frontends (user app, ambassador hub, admin panel) powered by one Express API. Real-time chat via Socket.io, multi-level referral commission engine with fraud prevention, Stripe + PayPal payouts, 60+ automated reward badges, feature-gated subscriptions, and dynamic event card generation with Fabric.js + Puppeteer.

React
Next.js
Node.js
Express.js
MongoDB
Socket.io
Stripe
PayPal
NextAuth.js
Zustand
Firebase FCM
AWS SES
Docker
MakeMyAISite

MakeMyAISite

AI-powered portfolio SaaS. Paste your LinkedIn URL or upload a resume — OpenAI extracts, structures, and generates a polished portfolio site. 6 template variants, drag-and-drop section reordering, in-browser audio recording with RevAI transcription, presigned S3 uploads, and a section-based architecture with 20+ Prisma models. Built without any AI assistance myself.

Next.js
Node.js
TypeScript
Express.js
MongoDB
Prisma
OpenAI API
Supabase
Stripe
AWS S3
Redis
Socket.io
Docker
Tutify

Tutify

Education platform serving schools and students in Singapore. Dual-database architecture (MongoDB + MySQL), complete exam lifecycle engine with timed delivery and auto-grading, MMOS Math Olympics competition system with leaderboards, centralized points/gamification service with full audit logging, Stripe subscriptions, and a three-tier authorization pipeline (JWT + roles + module permissions). 48 models, 32 controllers.

Node.js
Express.js
MongoDB
MySQL
Stripe
SendGrid
AWS SES
Redis
Passport.js
PM2
GitLab CI
DigitalOcean Spaces
Noodle Factory

Noodle Factory

Agent-based AI teaching platform for schools, colleges, and teachers. Upload your data, get auto-generated quizzes and study materials, or chat with an AI tutor on any topic. Admins create multiple AI agents, build classes, assign agents, and connect LMS integrations. I built the full React frontend with real-time chatbot powered by Server-Sent Events.

React.js
Python
Flask
Server-Sent Events
LMS Integration
Docker
AWS
Geaux Fish

Geaux Fish

Full-stack geospatial fishing platform for Louisiana and Gulf Coast anglers. PostGIS spatial queries (ST_DWithin, ST_Distance, ST_Centroid) for location intelligence, interactive Mapbox GL maps with custom controls and geofence rendering, catch logging with GPS coordinates, weather integration, and subscription-gated features. Built the entire system from database schema to interactive maps.

React
TypeScript
Node.js
Express.js
PostgreSQL
PostGIS
Mapbox GL
Valkey/Redis
AWS S3
Stripe
Docker

Other Projects

  • P

    PlayQuizNow

    Designing Solutions

    Real-time multiplayer quiz platform. Create quizzes, join live rooms, compete on leaderboards. WebSocket for real-time sync, Firebase auth (Google, email, anonymous), Stripe for 5-tier subscriptions,...
  • B

    BankingQuest

    Designing Solutions

    Mobile education app for banking exam preparation. Built with Expo and React Native — courses, events, sample tests with instant grading, certificates, and user profiles with document uploads. Firebas...
  • N

    NewTraceable

    Contriverz

    Cotton supply-chain traceability platform tracking product journey from farmer to fashion brand across 5+ production stages (ginning, spinning, weaving, dyeing, manufacturing). Role-based dashboards f...
  • R

    RiceTraceable

    Contriverz

    Rice industry supply-chain traceability — farmer-to-brand tracking with mandi and mill modules, geospatial maps, role-based dashboards, and automated compliance reporting....
  • D

    Designing Solutions Admin Portal

    Designing Solutions

    Internal dashboard for project management, client tracking, resource allocation, and team workflows. The tool that keeps our shop running.
  • I

    Internship Program Management System

    Codesoftic Tech Pvt Ltd

    Five-module web app (Student, Company, College, Mentor, Admin). Student recruitment, certification workflows, and commission tracking for colleges.
  • D

    Doctor Appointment Scheduling Platform

    Codesoftic Tech Pvt Ltd

    Appointment booking system with booking flow, confirmation screens, medication details, and doctor consultation UI.
Contact

Get in Touch

Building something interesting? Hiring? Just want to argue about whether MongoDB is a real database? Hit me up on LinkedIn . I reply faster than my CI/CD pipeline deploys.