---
title: 'Contact | Benjamin Sierra'
description: 'Let us discuss your project. Custom software development, maintenance, upgrades, and technical consulting.'
url: 'https://benjaminsierra.com/en/contact'
last_modified: '2026-10-19T01:53:17+00:00'
---

# Contact | Benjamin Sierra

Systems Engineer 👋

Passionate about

artificial intelligence

🖥️ and

mobile app development.

I have

building websites.

Let us work 👋

Together

I am here to help if you need a software developer to bring your idea to life or a technology partner to take your business to the next level.

**Frequently Asked Questions**
## Name

Enter your name

Email

Enter your email

Subject

Subject

Project Type

Informational website

Online store

Mobile application

Redesign or improvement

Support or maintenance

Other

Message

Type details about your inquiry

**Send Message**
# Who are you and what do you do?

I am Benjamin Sierra, a software developer focused on websites and mobile applications. I work with HTML, CSS, JavaScript, TypeScript, PHP, Swift, and Kotlin.
# Where are you based?

I live in San Miguel de Allende, Guanajuato, Mexico, and work with both local and international clients.
# What kinds of projects do you build?

I build custom websites, e-commerce stores, mobile apps, APIs, third-party integrations, and process automation solutions.
# How do you use artificial intelligence?

I use AI to improve workflows, user experience, and task automation. I can also integrate virtual assistants and AI tools.
# Do you work with WordPress?

Yes. I have extensive WordPress experience including themes, custom plugins, WooCommerce, and tailored implementations.
# Do you develop mobile apps?

Yes. I build native iOS and Android apps with Swift, Kotlin, SwiftUI, and Jetpack Compose.
# Can you improve or redesign my current website?

Absolutely. I can improve performance, accessibility, UX, and add new features based on your goals.
# How do you handle a new project?

First we define goals and scope. Then I propose a clear plan with timeline, budget, and deliverables.
# How long does a website or app take?

It depends on scope. A basic website can take 1-2 weeks, while a complex app may take 4-8 weeks or more.
# How much does a website or app cost?

Pricing depends on scope, design complexity, and required features. I always provide a custom quote.
# Do you offer payment plans?

Yes. I can offer milestone payments or monthly plans for ongoing maintenance and improvements.
# Can I hire you hourly or per project?

Both options are available depending on the type of work and your preferred engagement model.
# Do you provide support after launch?

Yes. I provide technical maintenance, updates, monitoring, backups, and continuous improvements.
# What technologies do you use?

I work with HTML, CSS, JavaScript, TypeScript, PHP, Swift, Kotlin, Tailwind, WordPress, WooCommerce, REST APIs, and more.
# Can you integrate payments, maps, or notifications?

Yes, I integrate Stripe, PayPal, Google Maps, push notifications, chats, social networks, and other services.