I will integrate api for payment gateway or stripe build proudction saas product

R
rohitkumar8181
R
rohitkumar8181
Rohit K
5.0
5.0
Parte de la información aparece en idioma inglés.
integrate api for payment gateway or stripe build proudction saas product
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integrate api for payment gateway or stripe build proudction saas product

Acerca de este Servicio

Need a secure, scalable, and production-ready backend for your web, mobile, SaaS, or AI application?

I will build a high-performance Node.js / NestJS backend with clean architecture, secure APIs, database integration, and reliable deployment.

With 5+ years of professional development experience, I build production-ready backend systems for SaaS, AI, fintech, Web3, and modern web applications.

What I can build:

Node.js, NestJS & Express REST APIs

GraphQL & Apollo APIs

JWT, OAuth & Role-Based Access Control

PostgreSQL, MongoDB, MySQL & Supabase

Third-party APIs, webhooks & payment integrations

OpenAI, Claude & Gemini integrations

Real-time APIs & WebSockets

API validation, security & error handling

Database design & performance optimization

Docker & cloud deployment

Perfect for:

SaaS AI Apps AI Agents MVPs Fintech Web3 Web & Mobile Apps

Whether you need a new backend, API integration, existing backend fixes, or performance optimization, I'll build it with maintainability, security, and scalability in mind.

Send me your requirements before ordering. I'll review your project and recommend the right backend approach.

  • Experiencia

    • Depuración de código
    • Rendimiento
    • Seguridad
    • Bases de datos
    • Procedimientos de prueba

  • Lenguaje de programación

    • TypeScript

  • Marco de frontend

    • Ember.js
    • Next.js
    • React.js
    • Preact
    • Vue.js

  • Marco de backend

    • Express.js
    • FastAPI
    • Fastify
    • NestJS
    • Node.js

Conoce a Rohit K

Rohit K

SaaS and Gen AI Developer Automation Nextjs Nodejs FastApi

5.0(1)
  • DeIndia
  • Miembro desdedic 2025
  • Responde aprox. en:1 hora
  • Última entrega3 semanas

  • Idiomas

    Hindi, Inglés
I build production-ready SaaS platforms, AI systems, and web apps for founders and businesses. With 5+ years of full-stack engineering experience and 20+ delivered projects, I turn complex ideas into clean, scalable software. My track record includes multi-tenant SaaS platforms with automated billing, custom AI agents with RAG workflows, Web3 applications with secure payment integrations, and real-time analytics dashboards. Whether architecting from scratch or debugging complex code, I deliver clean architecture fast. Message me to discuss your project!

Mi porfolio

Reseñas

1 comentarios sobre este Servicio
5.0

(1)
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(0)
Desglose de calificaciones
  • Nivel de comunicación del Freelancer
    5
  • Calidad de la entrega
    5
  • Valor de la entrega
    5
Ordenar por
Más relevante
  • H
    image-docs

    hillstomountain

    IN

    India

    5

    My experience of working with Rohit was impressive and he worked upon a sophisticated AI agent for my SPA which is extraordinarily capable of fulfilling the user queries in seconds using a fully functional LangGraph workflow in combination with advanced AI technologies such as Gemini, OpenAI, and Grok....

    USD 50

    Precio

    2 días

    Tiempo

    Útil?
    Sí
    No
Reseñas

1 comentarios sobre este Servicio
5.0

(1)
(0)
(0)
(0)
(0)
Desglose de calificaciones
  • Nivel de comunicación del Freelancer
    5
  • Calidad de la entrega
    5
  • Valor de la entrega
    5
Ordenar por
Más relevante
  • H
    image-docs

    hillstomountain

    IN

    India

    5

    My experience of working with Rohit was impressive and he worked upon a sophisticated AI agent for my SPA which is extraordinarily capable of fulfilling the user queries in seconds using a fully functional LangGraph workflow in combination with advanced AI technologies such as Gemini, OpenAI, and Grok....

    USD 50

    Precio

    2 días

    Tiempo

    Útil?
    Sí
    No

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