I will build a scalable backend API for your mobile apps

S
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S
saim_khokhar
Saim Sohail
build a scalable backend API for your mobile apps
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build a scalable backend API for your mobile apps

About this gig

Building a mobile or desktop app but need a backend that won't fall over once you have real users? That's exactly what I do.


I build the API layer your app talks to auth, data, business logic, and everything in between so your frontend team (or you) can focus purely on the client experience.


WHAT I BUILD:

  • REST APIs (NestJS or Ruby on Rails) clean, documented, versioned
  • Authentication JWT, OAuth, session-based, or social login
  • Database design PostgreSQL or MongoDB, built to scale with your user base
  • Real-time features WebSockets/push notifications if your app needs live updates
  • Third-party integrations payments (Stripe/Recurly), maps, storage, whatever your app depends on
  • API documentation Swagger/Postman collection so your app team can integrate without guessing 


WHO THIS IS FOR:

  • Mobile app founders who need a backend before their app can launch
  • Desktop app teams who need cloud sync, accounts, or shared data
  • Agencies/dev teams who need a backend specialist to own the API layer while they build the client


RECENT WORK:

Built backend systems powering SaaS and e-commerce platforms including one handling multi-marketplace order/inventory sync across Amazon, Walmart, and WooCommerce

  • Expertise

    • Debugging
    • Performance
    • Security
    • Databases

  • Programming language

    • TypeScript

  • Frontend framework

    • Next.js
    • React.js
    • Tailwind CSS
    • Vue.js

  • Backend framework

    • Django
    • Express.js
    • FastAPI
    • NestJS
    • Node.js

Get to know Saim Sohail

Saim Sohail

Software Engineer

  • FromPakistan
  • Member sinceDec 2022
  • Avg. response time2 hours

  • Languages

    English
Full-stack engineer with 5+ years building SaaS, fintech, and e-commerce platforms using Ruby on Rails, NestJS, React, and Next.js. I specialize in Stripe, Recurly, Chargebee, Amazon SP-API, Walmart, and WooCommerce integrations. I deliver clean, tested code, optimize PostgreSQL performance, and handle projects end-to-end—from database design and APIs to frontend, deployment, and infrastructure on EC2, Heroku, Linode, and dedicated servers.

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