Full-Stack AI EngineerBuilder  /  EducatorPuebla, MX

Web apps, payments & AI agents for US and Mexican companies.

Built for

Senior full-stack work in your timezone — Go, Python, React & React Native, with Stripe, CFDI and the AI layer wired through. Author of React in 60 Seconds.

See what I build →View work
AI workflows for startups & teams7 yrs building1M+ views
Cesar Ayala, Full-Stack AI Engineer and web app developer

By the figures

1M+
Views across content
7
Years shipping software
100+
Stores & sites built
4
Core stacks, deep

About

A web-app developer who ships modern products — and the AI layer underneath them.

I'm Cesar Ayala — I build web and mobile apps that real people use, and the AI that runs inside them. For seven years I've shipped end to end: Go and Python on the server, React on the web, React Native on iOS and Android, with AI agents wired through all four.

That work spans more than 100 stores and platforms — a B2B marketplace, fintech SaaS, Shopify storefronts, a 30K-member social network — and my own company, Nixbly, where developers meet the right ideas and ship together. Everything I build, I take apart in public: dense, 60-second breakdowns with more than a million views, plus my eBook React in 60 Seconds. Building and teaching aren't two jobs for me; the second is just what I do with the first.

Based
Puebla, Mexico — building with teams across MX & the US.
Focus
Web & mobile apps, end to end — with the AI layer wired through. Go · Python · React · React Native
Known for
60-second build breakdowns — 1M+ views — and the eBook React in 60 Seconds.
Currently
Founder of Nixbly, building it in the open. Live

Services

Payments, CFDI invoicing and AI inside your product — plus the product around them. What I can build for you:

Not sure which one you need? Tell me the problem — I'll scope the fastest path to a shipped product.

Start a project →Explore each service →

Selected work

02TruxgoEngineering with Puebla's hosting & social-platform company — servers, security, a 30K-member network.Platform · Security→03Hazil StudiosE-commerce builds with a New York Shopify agency — custom themes, apps and storefront performance.Shopify · E-commerce→04MercantoB2B wholesale marketplace connecting Mexican brands with retailers — web platform plus iOS & Android.Marketplace · Mobile→05FinHOAFintech SaaS for homeowner associations — dues collection, accounting, portals. Community, simplified.Fintech · SaaS→

Selected collaborations across MX & US — platforms, e-commerce, marketplaces, fintech.

How I work

A clear path from first call to a live product — so you always know what's happening, what you'll get, and what comes next, from idea to launch.

  1. Discovery & scope

    A focused call to map the goal, users and constraints — then a written plan so nothing is built on a guess.

    You get — Scope, timeline & fixed quote

  2. Design & prototype

    I shape the flows and a clickable prototype of the core screens. You react to something real before code starts.

    You get — Clickable prototype & approved direction

  3. Build & ship

    End-to-end in Go, Python, React & React Native, with AI wired through where it earns its place.

    You get — Weekly previews & tested, real code

  4. Launch & iterate

    We deploy, harden security and hand over a product you fully own — then tune what real usage shows.

    You get — Live deploy, handover & support window

The path

Seven years of products shipped, not promised — a line through the real work: founding a company, hardening platforms, building marketplaces and fintech, and teaching in public along the way — 1M+ views.

  1. Now

    Founder & Full-Stack AI Engineer Nixbly

    Building it in the open on React, Go and AI — growing the platform and the community around it.

    FounderReact · Go · AILive
  2. Recent

    Platform & Security Engineer Truxgo

    Servers, security hardening and a 30K-member network kept fast and safe.

    PlatformSecurity30K network
  3. Recent

    Shopify E-commerce Engineer Hazil Studios · NYC

    Custom themes, storefront apps and performance work behind 100+ stores shipped.

    ShopifyE-commerce100+ stores
  4. Earlier

    Full-Stack & Mobile Engineer Mercanto

    A B2B wholesale marketplace connecting Mexican brands with retailers — one platform across web, iOS and Android.

    MarketplaceWeb + MobileiOS · Android
  5. Earlier

    Fintech SaaS Engineer FinHOA

    Dues collection, accounting and resident portals — community made simple.

    FintechSaaSPayments
  6. Ongoing

    Author & Educator 1M+ views

    Published React in 60 Seconds and crossed 1M+ views teaching how I actually build — 60-second breakdowns, no fluff.

    Author1M+ views60s lessons

Teaching & content

I teach the way I build — fast, dense, in public.

Every product I ship becomes a lesson. The setups, the stacks, the agent workflows — broken down for anyone trying to build AI-native, the right way.

1M+views & counting
60sper idea, on average
YouTube ↗TikTok ↗Instagram ↗
React in 60 Seconds with TypeScript — a book by Cesar Ayala

React in 60 Seconds

Out now · eBook · TypeScript

Get the book ↗

The stack

01GoBackends & services
02PythonAI, data & automation
03ReactWeb front ends
04React NativeiOS & Android apps
★AI · Agentsthe layer across all four

Range, when a build calls for it

TypeScriptNext.jsNodePostgresStripeShopifyWordPressDockerKubernetesLLMsCybersecurity

Four core stacks I go deep on, with AI and agents wired through every one — plus range across the web, cloud and security side when a project needs it.

Available for builds & advising

Let's build something AI-native.

Have a product in mind — or a half-built one that stalled? Tell me where you're stuck and I'll come back with the fastest path to shipped.

Email me →X / Twitter ↗Instagram ↗YouTube ↗LinkedIn ↗
Cesar Ayala