Scalable Backend APIs & Microservices for SaaS ProductsKhaled Mehrez
I help startups and SaaS founders build scalable backend systems, APIs, and microservices that are designed to handle real production workloads.
With 5+ years of experience building backend systems in startups and distributed teams, I specialize in designing clean, maintainable, and scalable architectures using Node.js, NestJS, and modern backend tools.
I don’t just build APIs — I design backend systems that can grow with your product.
What I can help you build
REST or GraphQL APIs for web and mobile applications
Scalable microservices architectures
Authentication and user management systems
Background job systems (queues, workers, schedulers)
Real-time features (notifications, messaging, live updates)
Database design and optimization (MongoDB, MySQL)
AI integrations and automation workflows (OpenAI, third-party APIs)
Production deployment using Docker and cloud infrastructure
Who this is for
Startup founders building MVPs or SaaS products
Businesses scaling existing backend systems
Teams needing help with backend architecture or performance
Products requiring complex backend workflows or integrations
My approach
Understand your product and technical needs
Design a scalable and maintainable architecture
Build clean, production-ready backend systems
Ensure performance, reliability, and scalability
Support deployment and integration if needed
If you're building a serious product and need a backend that won't break when you scale, I can help you build it the right way from the start.
Contact for pricing
Duration1 week
Tags
MongoDB
NestJS
Node.js
SaaS Development
API Development
Backend Engineer
Fullstack Engineer
Microservices
System Architecture
Service provided by
Khaled Mehrez Tunis, Tunisia
Scalable Backend APIs & Microservices for SaaS ProductsKhaled Mehrez
Contact for pricing
Duration1 week
Tags
MongoDB
NestJS
Node.js
SaaS Development
API Development
Backend Engineer
Fullstack Engineer
Microservices
System Architecture
I help startups and SaaS founders build scalable backend systems, APIs, and microservices that are designed to handle real production workloads.
With 5+ years of experience building backend systems in startups and distributed teams, I specialize in designing clean, maintainable, and scalable architectures using Node.js, NestJS, and modern backend tools.
I don’t just build APIs — I design backend systems that can grow with your product.
What I can help you build
REST or GraphQL APIs for web and mobile applications
Scalable microservices architectures
Authentication and user management systems
Background job systems (queues, workers, schedulers)
Real-time features (notifications, messaging, live updates)
Database design and optimization (MongoDB, MySQL)
AI integrations and automation workflows (OpenAI, third-party APIs)
Production deployment using Docker and cloud infrastructure
Who this is for
Startup founders building MVPs or SaaS products
Businesses scaling existing backend systems
Teams needing help with backend architecture or performance
Products requiring complex backend workflows or integrations
My approach
Understand your product and technical needs
Design a scalable and maintainable architecture
Build clean, production-ready backend systems
Ensure performance, reliability, and scalability
Support deployment and integration if needed
If you're building a serious product and need a backend that won't break when you scale, I can help you build it the right way from the start.
Contact for pricing