Available for new freelance projects

Freelance Software Developer in Mexico

I help startups, agencies and growing companies ship custom web apps, enterprise systems and AI-powered automation. Built with Angular, Java Spring Boot and modern AI tooling, with clear communication from kickoff to launch.

  • 5+Years of experience
  • 19MCP tools in Creator OS
  • UTC-6Overlaps with the Americas
  • EN / ESBilingual communication

Freelance services

Everything you need to take a product from idea to production, handled by one engineer.

Web application development

Fast, accessible and maintainable web apps built with Angular, React and Next.js, focused on real product impact.

  • Dashboards, portals and SaaS front-ends
  • Server-side rendering and SEO-ready pages
  • Performance and accessibility built in

Business websites & landing pages

Modern, conversion-focused websites for local businesses and brands: clear design, quick loading, easy to find on Google.

  • Custom design, no generic templates
  • Mobile-first and bilingual-ready
  • Technical SEO and analytics setup

Custom software & APIs

End-to-end engineering of tailored systems: secure backends and clean APIs that scale with your business.

  • Java Spring Boot and Python (FastAPI) backends
  • Oracle and relational data modeling
  • REST APIs and microservice architectures

AI integration

I add LLMs, embeddings and retrieval (RAG) to your existing product to unlock smart workflows and internal copilots.

  • Copilots and decision-support tools
  • Document search and Q&A over your data
  • Multimodal and generative features

Automation & AI chatbots

Intelligent chatbots and automation pipelines connected to your systems, reducing manual work and answering around the clock.

  • Customer-support and sales chatbots
  • Workflow automation between your tools
  • Real-time responses, 24/7

Legacy modernization & consulting

Technical consulting on architecture and code quality, plus migrations of outdated apps to modern stacks without losing business logic.

  • Architecture and code reviews
  • Step-by-step legacy migrations
  • Security and performance improvements

Why work with me

Enterprise-grade engineering with the speed and directness of a freelancer.

Enterprise experience

Five-plus years building production systems for finance, retail and consulting teams at VASS, Grupo Salinas and DuoSceptem.

Direct communication

You talk to the engineer who writes the code. No account managers, no hand-offs, clear updates in English or Spanish.

Clean, documented code

Every project ships with readable code and documentation, so your team can maintain and extend it long after launch.

Built to perform

Fast load times, accessible interfaces and search-friendly markup are part of the default, not an upsell.

How we work together

A simple, transparent process from first message to launch.

  1. 01

    Discovery call

    We talk about your goals, users, constraints and budget so I understand what success looks like.

  2. 02

    Proposal & architecture

    You get a written scope, timeline and quote, plus the technical approach I recommend.

  3. 03

    Build in sprints

    I deliver working software early and often, with regular demos so you can steer the result.

  4. 04

    Launch & support

    I deploy, document and hand over, and stay available for improvements and maintenance.

Technologies I use

A proven toolkit for shipping reliable software.

Frontend

  • Angular
  • RxJS
  • React
  • Next.js
  • TypeScript
  • Tailwind CSS
  • GSAP

Backend

  • Java
  • Spring Boot
  • Python
  • FastAPI
  • Node.js
  • Express

Data & CMS

  • Oracle
  • SQL
  • Sanity CMS
  • REST APIs

AI & automation

  • LLMs
  • Google Gemini
  • Embeddings
  • RAG
  • Chatbots
  • Workflow automation

Frequently asked questions

Quick answers about working with a freelance developer.

Do you work with clients outside Mexico?

Yes. I work remotely and communicate in English and Spanish. I am based in Mexico City, so my working hours overlap well with the Americas and parts of Europe.

How much does a project cost?

Projects start at around $800 USD. The final price depends on scope, from landing pages to multi-month systems, so after a short conversation about your goals I send a clear written quote with scope and timeline.

How long does a typical project take?

A typical sprint cycle covers discovery, architecture, implementation and QA, and delivers working software early through regular demos. Timelines depend on scope: small sites can ship in a couple of weeks, and larger systems are split into milestones.

Which technologies do you work with?

Angular, React and Next.js on the front end; Java Spring Boot, Python (FastAPI) and Node.js on the back end; Oracle and SQL databases; and AI tooling such as LLMs, embeddings and RAG.

Can you add AI to my existing product?

Yes. I integrate LLMs, retrieval (RAG) and chatbots into existing products, usually starting with a small proof of concept so you can validate the value before investing further.

Do you offer support after launch?

Yes. Every project ships with documentation and a proper handover, and I remain available for maintenance, fixes and new features.

Can you join my team or agency as a contractor?

Yes. I have worked in consulting and enterprise teams, and I am comfortable joining an existing codebase, process and team as an external developer.

How do we get started?

Send me a message with the form below or email me directly. Tell me about your project and I will reply to schedule a first conversation.

What people say

Recommendations from teammates and leaders I have worked with.

  • Skilled at their work and a fast learner.
    Jesus Abraham Pérez CastroProgramador · Studied together
Contact me

Let's work
together.

Hiring for a remote role or need a project built? Tell me which and I will get back to you — solid engineering, clear communication and real business impact.

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