Expert Web App Development Services

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About this service

Summary

I offer unique web app development services, delivering a fully functional, responsive, and user-friendly application tailored to your needs. My unique approach combines robust backend, API integration, and a focus on user experience and design. I ensure high-quality results and continuous support throughout the project.

What's included

  • Fully Functional Web App

    A complete, tested, and fully functional web application tailored to the client's requirements.

  • Responsive Design

    A web app that is optimized for various devices, including desktops, tablets, and smartphones.

  • User Interface (UI) Design

    An intuitive and visually appealing user interface designed to enhance user experience

  • Backend Development

    A robust and scalable backend architecture to support the web app's functionality and performance.

  • API Integration

    Seamless integration with necessary third-party APIs and services.

  • Database Setup and Configuration

    A well-structured and optimized database to handle data efficiently.

  • Security Features

    Implementation of security measures to protect user data and ensure safe transactions.

  • Documentation

    Comprehensive documentation covering code, architecture, and user guides to facilitate future maintenance and updates.

  • Deployment and Hosting Setup

    Deployment and Hosting Setup: Assistance with deploying the web app to a live server and configuring hosting services as needed.

  • SEO Optimization

    Basic SEO setup to ensure the web app is search-engine friendly.

  • Analytics Integration

    Analytics Integration: Integration with analytics tools to monitor user engagement and app performance.

Recommendations

(5.0)

Richard Zhao • nterviewiz

Client • May 24, 2025

I worked with Sergio on my last project and genuinely can’t recommend him enough. His technical skills are top-tier, flawless execution every step of the way. But what truly sets him apart is the care and ownership he brings. He treated my project like his own, constantly going above and beyond with thoughtful, strategic input on product growth. He never just delivered, he added real value.

Hunor Szep • Akta.app

Client • May 23, 2025

I had a fantastic experience working with Sergio and his team. They were consistently punctual, highly professional, and showed a genuine commitment to understanding the unique needs of my project. Their attention to detail and willingness to go the extra mile made a real difference. I truly appreciated their collaborative approach and would not hesitate to work with them again. Highly recommended!

Thomas Jurasek • Bearex

Client • Jun 13, 2024

Sergio has helped on multiple projects. Timely, accurate and knowledgeable to help complete my projects; has assisted in client builds of apps, from scratch and reverse engineering old apps built in outdated platforms using java. Communication has been excellent which is a huge selling point...

Sergio is attentive and fluent in English and Spanish. He's got many years of experience in the web development space and is readily available to assist with a 'can-do' attitude.


Skills and tools

Mobile Engineer

AI Application Developer

Desktop Apps Development

Django

Django

Node.js

Node.js

Oracle Database

Oracle Database

Python

Python

React

React