Web Applications & Backend Systems

Full-Stack Development
That Ships to Production

I build reliable web apps, payments, and backend systems using Node.js, Python, Next.js, and PostgreSQL — with clean architecture, strong security, and smooth deployments.

Book to discuss Call - $20

5+ years. 100% Job Success. Payments via Stripe

✓ 100% Job Success✓ Top Rated✓ 5.0 Rating

What I Build

Web Applications & SaaS

Production-ready web applications built with Next.js, React, and TypeScript. From MVPs to full platforms.

APIs & Backend Systems

RESTful APIs, webhooks, and backend services using Node.js, Python, Express, and Flask.

Admin Panels & Dashboards

Custom admin interfaces for managing your data, users, and business operations.

Payment Integration

Stripe and PayPal integration including subscriptions, checkout flows, and webhook handling.

Database Architecture

PostgreSQL, Supabase, Firebase, and MongoDB. Schema design, triggers, and optimization.

Migrations & Legacy Systems

Data migrations, system modernization, and integration with existing platforms.

How It Works

1

Discovery Call

We clarify goals, requirements, constraints, and risks. You get: a written summary + recommended approach + next steps.

2

Architecture & Planning

I propose a clean technical plan: data model, APIs, and deployment strategy. You get: architecture notes + timeline + milestones.

3

Build & Delivery

I implement, test, and ship. You get clear updates and a clean handoff. You get: production-ready code + documentation + post-launch support options.

Tech Stack

Backend

  • Node.js
  • Python
  • Express
  • Flask
  • FastAPI

Frontend

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS

Database

  • PostgreSQL
  • Supabase
  • Firebase
  • MongoDB

Cloud

  • Vercel
  • Firebase
  • Docker
  • AWS

Frequently Asked Questions

Recent Work

Real projects with real results. See how I solve complex technical challenges

Payment Integration

Stripe Payments & Webhooks

Problem: Payments needed a reliable flow - checkout, confirmation, webhooks, and retries.

  • ✓Stripe Checkout + webhook handling with idempotency & signature verification
  • ✓Event-driven processing for payment status & email notifications
  • ✓Failure recovery with retries + dead-letter strategy
  • ✓Hardened security and validation across endpoints

Outcome: Stable payment processing, fewer edge-cases failures, clean auditability

Database Architecture

Supabase/PostgreSQL Multi-Tenant System

Problem: System needed secure, scalable data access across users and teams.

  • ✓Normalized schema + indexes optimized for performance
  • ✓Row Level Security policies for tenant scoping + role rules
  • ✓Server-side validation patterns and admin workflows
  • ✓Migration planning and data consistency checks

Outcome: Strong tenant isolation, scalable queries, clear model for growth.

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Ready to Build Something?

Book a 30-minute discovery call or email me directly.

Book a Discovery Call - $20

Or email me directly: contact@byteup.co