Independent developer & consultant
— México → worldwide

(Est. 2019)

Kevin Barreto — a software studio of one.

I plan, design, build and ship web products for businesses that need them done right. One accountable partner — from the first call to the last deploy.

  • Web apps
  • E-commerce
  • Product launches
  • Performance
  • Automation
  • Consulting
(01) — Manifesto

About Kevin Barreto

Most software projects don’t fail because of code. They fail in the gaps — between what the business needs and what actually gets built. I close that gap.

Writing production code since
2019
One point of contact, start to finish
1:1
Built to work great on mobile
100%
Reply time on new inquiries
< 24h

(About)

I’m Kevin — a frontend-heavy full-stack developer working from México with clients anywhere. Since 2019 I’ve shipped websites, online stores and web apps with React, Next.js, Vue and Astro, backed by Node.js and Firebase.

You work with me directly, from the first call to the last deploy — no account managers, no hand-offs. I use AI tooling every day to move faster, and I review every line it touches. The result is software that is fast, accessible and easy for the next developer to own.

(02) — Selected work

Featured work

A client site and a product of my own that I sell today — both designed and built end to end.
(03) — Services

What I do

Six ways I can help — from a single landing page to a product that runs your business. Pick one, or hand me the whole thing.
  • Architecting scalable, high-performance applications using cutting-edge frameworks. I build robust digital infrastructure designed for growth.

    • Next.js & React Ecosystems
    • Scalable Cloud Architecture
    • API Design & Integration
    • Complex State Management
  • Crafting intuitive, aesthetic interfaces that captivate users. I merge behavioral psychology with visual design to drive engagement.

    • High-Fidelity Prototyping
    • Design Systems & Tokens
    • Micro-Interactions & Motion
    • Accessibility (WCAG) First
  • Turning concepts into market-ready products. From MVP to full-scale deployment, I ensure a smooth trajectory for your digital assets.

    • Strategic MVP Development
    • Marketing-Ready Landing Pages
    • E-commerce Solutions
    • Cross-Platform Compatibility
  • Obsessive optimization for lightning-fast load times. Speed is a feature, and I ensure your application delivers instantaneous responses.

    • Core Web Vitals Mastery
    • Advanced Caching Strategies
    • Bundle Size Optimization
    • Server-Side Rendering (SSR)
  • Fortifying your digital presence. Proactive monitoring and updates keep your business secure and running without interruption.

    • Automated Testing Pipelines
    • Security Audits & Hardening
    • Real-time Error Monitoring
    • Continuous Integration (CI/CD)
  • Leveraging data to streamline operations. I build custom tools that automate workflows and provide actionable business intelligence.

    • Custom Dashboards & Admin Panels
    • Workflow Automation
    • Data Visualization
    • Third-Party API Integration
(04) — Process

How we’ll work

Four steps from idea to launch. You always know where we are, what comes next and what you get at the end of each stage.
  1. Step 1 of 4

    Strategic Discovery

    We begin by deconstructing your business goals. I conduct deep-dive research to uncover market opportunities and define the technical constraints, ensuring our roadmap aligns perfectly with your vision.

    You get

    • Technical Specification
    • Competitor Analysis
    • Architecture Blueprint
    • Project Roadmap
  2. Step 2 of 4

    UX/UI Architecture

    Merging form and function. I create interactive high-fidelity prototypes that establish the visual language and user journey, allowing us to validate concepts before a single line of code is written.

    You get

    • Interactive Prototypes
    • Design System
    • User Flow Maps
    • Accessibility Audit
  3. Step 3 of 4

    Full-Stack Engineering

    The build phase. I develop your solution using scalable, modern frameworks. Every component is crafted for performance, security, and maintainability, with rigorous testing at every step.

    You get

    • Production-Ready Code
    • API Documentation
    • Unit & Integration Tests
    • Performance Report
  4. Step 4 of 4

    Deployment & Scale

    Launch is just the beginning. I handle the DevOps pipeline for a seamless release and set up monitoring tools to ensure your application scales effortlessly as your user base grows.

    You get

    • CI/CD Pipeline
    • Analytics Dashboard
    • SEO Optimization
    • Growth Strategy
(05) — Experience

Track record

Enterprise discipline and freelance hustle. Years inside large delivery teams, and years running projects end to end on my own. Now: independent.
  1. 2022 — Present

    Software Developer

    Softtek · Mexico

    Frontend-focused developer building polished, accessible product experiences with React, Next.js, and Vue. I partner closely with design and product to turn requirements into fast, maintainable UI, and I use AI daily to accelerate delivery and deepen learning. On the backend I work with Firebase and some Node.js for lightweight APIs. Comfortable in CMS ecosystems like Drupal, I ship thoughtfully: reusable components, SSR/SEO, performance budgets, and pragmatic testing that keeps features moving while preserving quality.

    • TypeScript
    • React
    • Next.js
    • Vue
    • Node.js
    • Firebase
    • Drupal
  2. 2019 — 2022

    Freelance Web Developer

    Self-Employed · Mexico

    Built and launched websites for local businesses needing a strong digital presence. Led end-to-end delivery—from discovery and scoping to UI implementation and handoff—while improving client communication, requirement gathering, and project planning. Focused on clean, responsive frontends and usability, which accelerated my learning and solidified core web fundamentals.

    • JavaScript
    • HTML5
    • CSS3

(06) — Principles

How I operate

  1. (01)

    Strategic Precision

    Every technical decision has to earn its place against a business goal. If it doesn't move the needle, it doesn't ship.

  2. (02)

    Radical Transparency

    You always know what is done, what is next and what is at risk. Weekly updates, shared boards, no surprises.

  3. (03)

    Engineering Excellence

    Typed, tested, documented and fast. The code you inherit is code your next developer will thank you for.

  4. (04)

    Human-Centric Design

    Software is for people. Interfaces that are clear, accessible and pleasant turn visitors into customers.

(07) — Contact

Got a project? Let’s build it.

Tell me what you’re building, where it stands and what success looks like. I read every message myself.

Reply time
Within 24 hours
Point of contact
Me, start to finish
Local time
· México
Project type (optional)
Budget range (optional)

0/2000