Nixon Marrasquin — Senior Full Stack Developer (React, Next.js, React Native)

Senior Full Stack Developer based in Ecuador specialized in React, Next.js, TypeScript, NestJS and React Native. 3+ years building high-performance web and mobile applications. Open to remote full-time, contract and consulting opportunities across Latin America, Canada and US timezones.

Open to work

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I design and ship web and mobile apps that load fast, stay reliable, and scale with the business. Specialist in React, Next.js, NestJS and React Native . 3+ years in production.

ReactNext.jsTypeScriptReact NativeNestJSGraphQLNode.jsPostgreSQLTailwindAstroDockerClaudeGChatGPTReactNext.jsTypeScriptReact NativeNestJSGraphQLNode.jsPostgreSQLTailwindAstroDockerClaudeGChatGPT
GSAPMotionPythonDjangoExpoRefineDirectusWordPressPlaywrightVercelRailwayFigmaReactNext.jsTypeScriptGSAPMotionPythonDjangoExpoRefineDirectusWordPressPlaywrightVercelRailwayFigmaReactNext.jsTypeScript
///VOLUME OF WORK·12+ SHIPPED

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A mix of custom systems and landing pages I've shipped: marketing sites, billing platforms, digital media, internal tools, e-commerce and podcasts. Different stacks, same goal — code that ships and stays.

///PRODUCTION APPS·04 SHIPPED///

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One React Native codebase, two App Stores, native feel. Real users open these apps every day — across delivery, fintech, retail and B2B.

iOS + Android60 FPSPush & OTAOffline-Ready
Nelson GO

Nelson GO

React Native + Expo

Nelson GO

Delivery app

React Native + Expo
Semillapp

Semillapp

React Native + Expo

Semillapp

Digital coupons

React Native + Expo
Siglo 21

Siglo 21

React Native + Expo

Siglo 21

B2B ecommerce

React Native + Expo
DeWallet

DeWallet

Flutter

DeWallet

Sales incentives application

Flutter

Built for users that actually open the app.

04Apps in production
Codebase
2App Stores

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Where I've worked and what I shipped.

2024 → Present
Current

Web & Applications Developer

Azirgo SASEcuador · Remote

Developer at Azirgo SAS: web and app development using React, React Native and Next.js; administrative dashboards with Refine and APIs with NestJS. +15 landing pages and React Native apps for e-commerce and digital couponing.

ReactNext.jsNestJSReact NativeGraphQLPostgreSQL
2022 — 2024
2 yr

Web Developer & Mobile Developer

Electronica Siglo 21Ecuador

Developed several administrative dashboards using Django with REST APIs (Python). Monitored workflows in SAP Business One. Built e-commerce mobile applications with React Native and Expo for B2B commerce.

DjangoPythonReact NativeExpoSAP Business One
2020 — 2022
Freelance

Freelancer — WordPress & WooCommerce

IndependentEcuador · LATAM

Worked as a freelancer on WordPress sites with WooCommerce and API integrations for small and medium e-commerce stores.

WordPressWooCommerceRESTPHP

En números

Algunas cosas enviadas, todavía corriendo en producción.

0+
Años
Enviando a producción
0+
Landing pages
Lanzadas con tráfico real
0
Apps móviles
En las App Stores
0 min
Respuesta
Tiempo promedio al inbox

Tech y marcas con las que he trabajado

Scroll ∞

Azirgo SASElectronica Siglo 21Nelson GOSemillappDeWalletSiglo 21RefineDirectusChatGPT APIn8nReactNext.jsNestJSReact NativePostgreSQLGraphQLAzirgo SASElectronica Siglo 21Nelson GOSemillappDeWalletSiglo 21RefineDirectusChatGPT APIn8nReactNext.jsNestJSReact NativePostgreSQLGraphQLAzirgo SASElectronica Siglo 21Nelson GOSemillappDeWalletSiglo 21RefineDirectusChatGPT APIn8nReactNext.jsNestJSReact NativePostgreSQLGraphQL

Flujo de trabajo

Ingeniería aumentada con IA.

Uso Claude Code como compañero de trabajo desde que despierto. No para reemplazar criterio — para eliminar la fricción entre idea, código en producción y documentación. Skills personalizadas, auditorías SEO, code reviews, refactors: todo orquestado desde la terminal.

claude@nixon-dev
$ claude context: nixon-dev
Invoking /seo-audit on landing pages…
Found 3 meta gaps · 1 canonical conflict
Running /frontend-design on /about hero…
Rewrote with GSAP + per-letter hover
Using /copywriting to cut AI slop…
40+ strings tightened · shipped
Done in 4h 12m.  
Claude Code corriendo en mi terminal
Claude Code
Cómo lo uso

Cada tipo de tarea tiene su slash-skill: una plantilla con checklist, criterios y estilo que vive en .claude/skills. Invoco /seo-audit para revisar landings, /frontend-design para rehacer una sección, /copywriting para limpiar AI slop. El resultado: iteraciones cortas, decisiones más claras y menos contexto perdido entre sesiones.

~4×

más velocidad en refactors grandes

<5 min

para primer borrador revisable

0 drift

entre diseño, código y docs

Skills que uso a diario
/seo-audit

Auditoría técnica y on-page

/frontend-design

Componentes premium sin AI slop

/copywriting

Edición conversión-focused

/gsap-core

Animaciones scroll-driven

/ai-seo

LLMO y AEO para citas

/schema-markup

Datos estructurados

Lo que estás viendo

Este sitio fue iterado con Claude Code: hero, auditorías, SEO bilingüe, FAQs estructuradas, GSAP ScrollTrigger, copy refinado. Todo commit a commit, con criterio humano en cada decisión.

Ver commits en GitHub

Stack

Tech Stack

The tools I reach for every day.

Total

16.

Herramientas activas

React
React
Next.js
Next.js
TypeScript
TypeScript
React Native
React Native
Astro
Astro
Tailwind CSS
Tailwind CSS
Refine
Refine
NestJS
NestJS
GraphQL
GraphQL
PostgreSQL
PostgreSQL
Directus
Directus
WordPress
WordPress
Playwright
Playwright
Railway
Railway
Vercel
Vercel
Figma
Figma

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Tell me what you're building. I'll reply with thoughts in hours, not weeks.

Got an idea? Drop me a message.

Designed & Built by Nixon Marrasquin © 2026

Nixon Marrasquin | Senior Full Stack Developer — React, Next.js & React Native