I will develop your saas web application as a full stack backend developer

S
sabiruddin_dev
S
sabiruddin_dev
Sabir
Einige Informationen werden in englischer Sprache angezeigt.
develop your saas web application as a full stack backend developer
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develop your saas web application as a full stack backend developer
Vollbild
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develop your saas web application as a full stack backend developerdevelop your saas web application as a full stack backend developerdevelop your saas web application as a full stack backend developer

Über diesen Service

I'm Sabiruddin, a full stack developer with 3+ years of professional experience building production SaaS platforms, backend systems, and API integrations. I currently work on a live e-commerce analytics and marketplace intelligence platform, handling real features used by real users not just personal projects.



What I build:

  • Custom SaaS web applications (frontend + backend)
  • Marketplace API integrations (eBay Seller API, OAuth 2.0, order/refund/return flows)
  • Authentication systems (OTP, Google OAuth, session/token management)
  • Wallet & payment systems (Razorpay, Stripe) with concurrency-safe logic
  • REST APIs & third-party integrations
  • Background job processing & notification systems



Tech stack:

  • Backend: Node.js, NestJS, Prisma
  • Frontend: React.js, JavaScript
  • Database: PostgreSQL, Redis
  • Other: REST APIs, OAuth 2.0, BullMQ, GCP, AWS SES



Why work with me: clean and tested code · honest timelines (I won't promise what I can't deliver) · clear, responsive communication · production-grade thinking, even on small tasks.

Please message me before placing an order so I can confirm scope and give you an accurate quote and timeline.

  • Programmiersprache

    • JavaScript

  • Expertise

    • Debuggen
    • Performance
    • Sicherheit
    • Datenbanken
    • Quellcodeverwaltung

  • Frontend-Framework

    • Bootstrap
    • jQuery
    • Next.js
    • React.js
    • Tailwind CSS

  • Backend-Framework

    • Express.js
    • FastAPI
    • NestJS
    • Next.js
    • Node.js

  • KI & Low-/No-Code-Builder

    • Lovable
    • Bolt.new
    • Claude
    • Co.dev
    • Cursor

Lerne Sabir kennen

Sabir

Full Stack Developer NestJS React API Integration Specialist

  • AusIndien
  • Mitglied seitJuli 2026
  • ⌀ Antwortzeit1 Stunde

  • Sprachen

    Englisch
I'm a full-stack developer specializing in NestJS, React, PostgreSQL, and Redis. I build production-grade SaaS backends with a focus on third-party API integrations (OAuth 2.0), secure payment/wallet systems, and scalable architecture. Recent work includes OTP-based authentication, notification services using message queues (BullMQ), and payment gateway integrations. I write clean, tested code and prioritize performance and security. Need a backend built from scratch, an API integrated, or help scaling an existing system? I deliver reliable, production-ready solutions.

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