I will develop pos app, sass app, restaurant website, food delivery app, delivery app

D
diegosailazar
D
diegosailazar
diego sailazar
develop pos app, sass app, restaurant website, food delivery app, delivery app
Full Screen
develop pos app, sass app, restaurant website, food delivery app, delivery app

About this gig

Are you looking to build a modern, scalable, and high-performing application for your business?



I specialize in developing custom POS systems, SaaS platforms, restaurant websites, and food delivery apps that are tailored to your business goals and designed to drive growth.




What I Offer

POS (Point of Sale) Application

  • Inventory & sales management
  • Real-time analytics & reporting
  • Multi-store support
  • Secure payment integration

SaaS Application Development

  • Scalable cloud-based architecture
  • Subscription & billing systems
  • User dashboards & admin panels
  • API integrations


Restaurant Website

  • Modern, mobile-friendly design
  • Online ordering system
  • Menu management
  • Reservation features

Food Delivery App

  • Customer, rider & admin panels
  • Real-time order tracking (GPS)
  • Secure payment gateway
  • Push notifications
  • Ratings & reviews system



Why Choose Me?

Clean, scalable, and secure code

User-friendly UI/UX design

Fast delivery & clear communication

Ongoing support after project completion



️ Technologies I Use

React / Flutter / Node.js / Laravel / Firebase / Stripe / REST APIs & more.



Lets Build Something Amazing!

  • App type

    • Native

  • Programming language

    • JavaScript
    • Kotlin
    • Objective-C
    • Swift
    • React Native
    • Flutter

  • Frameworks

    • Flutter
    • NativeScript
    • SwiftUI
    • Node.js
    • React Native

  • Purpose

    • Chat
    • Delivery
    • Restaurant
    • Finance
    • Social networking
    • Medical
    • Maps & navigation
    • Education
    • Lifestyle
    • Ecommerce

  • Tools

    • Flutterflow
    • Xcode
    • Firebase
    • BuildFire
    • Visual Studio Code
    • Visual Studio
    • Supabase

  • Expertise

    • Cross browser/Device compatibility
    • Localization
    • Performance
    • Security
    • Design
    • Ads & monetization

Get to know diego sailazar

diego sailazar

APP DEVELOPER

  • FromPortugal
  • Member sinceApr 2026
  • Avg. response time3 hours

  • Languages

    English, Spanish, German, Italian, French
I’m a passionate Full Stack Mobile App Developer dedicated to building high-performance, scalable, and user-friendly applications. From concept to deployment, I handle everything—intuitive UI/UX, robust backend systems, and seamless integrations. Whether it's a startup idea or an enterprise solution, I turn visions into powerful mobile experiences.

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