Available for new client projects
Esteban Arocha

I build software that helps your business grow faster

From custom web platforms and iOS apps to AI-powered tools, I turn your idea into a production-ready product. One technical partner from strategy to launch.

Ex-Amazon engineer 5+ years experience End-to-end delivery
Book a free strategy call See case studies

Typical response time: under 24 hours

What I do
How I can help
your business

Web Platforms

Custom websites and web applications that look great, work fast, and grow with your business. From landing pages to full-featured platforms with dashboards, user accounts, and payments.

Mobile Apps

Native iPhone apps published on the App Store. Designed for a seamless experience your customers will love — from concept to launch, I handle the entire process.

AI-Powered Tools

Smart tools that use artificial intelligence to save you time, automate repetitive tasks, and help you make better decisions. Built specifically for your workflow.

Data & Dashboards

Interactive dashboards and reports that turn your raw data into clear insights. Track your KPIs, visualize trends, and make data-driven decisions with confidence.

Proof
Results that reduce your risk
Millions
of users served through products I helped build at Amazon
125
municipalities covered in a production government platform
38+
advanced filters shipped for high-stakes reporting workflows
1 Partner
for scope, design, development, launch, and post-launch support
About
Building software
that matters

I'm a full stack engineer based in Mexico, with a Computer Science degree from Tecnológico de Monterrey and experience shipping large-scale systems at Amazon.

Clients hire me when they need a reliable technical owner who can move from idea to launch quickly, without the overhead of managing a full agency team.

My focus is straightforward: deliver software that creates measurable business value through faster operations, better customer experiences, or new digital revenue streams.

5+
Years of experience
3
Countries worked in
Millions
Users served in large-scale systems
End-to-end
Scope, build, launch, and support
Case Studies
Featured client outcomes
Fintech · AI

Tradr

A smart trading platform that uses AI to analyze stocks and deliver clear investment recommendations, reducing research time for active users.

Business impact: Combined market data, AI insights, execution, and portfolio tracking into one workflow so users can decide and act faster.

React Node.js AI / LLM APIs TradingView Alpaca API
  • AI-driven multi-perspective analysis for every stock
  • Real-time charts and market data in one view
  • One-click trading with automatic portfolio updates
  • Performance, ranking, and tax-ready reporting
Tradr Dashboard Tradr Research Tradr Council Tradr Session
Government · GovTech

COPLADEM — Plan de Desarrollo

A public transparency platform for the State of Mexico that turns complex budget and policy data into clear maps, dashboards, and reports.

Business impact: Enabled faster decision-making and better public visibility with a single source of truth across municipalities and policy areas.

React Node.js PostgreSQL RESTful APIs
  • Interactive map covering 125 municipalities with quarterly updates
  • Powerful report builder with 38+ filters to find exactly what you need
  • Dashboards tracking progress across 7 strategic policy areas
  • Side-by-side comparisons across agencies and departments
COPLADEM Home COPLADEM Progress COPLADEM Map COPLADEM Analysis COPLADEM Reports
Wellness · iOS

Medita Yoga

A native iOS wellness app with guided yoga and meditation sessions, designed and launched from scratch.

Business impact: Delivered a polished App Store product with a clear onboarding and progression model that supports long-term user retention.

SwiftUI Swift iOS Native App Store
  • Published on the App Store — designed, built, and launched independently
  • Step-by-step guided routines with timers and progress tracking
  • Beginner to advanced levels so users grow at their own pace
  • Daily inspiration and a calming experience that keeps users coming back
Medita Yoga Routines
Medita Yoga Home
Medita Yoga Session
Packages
Ways to work together

Product Discovery Sprint

1 week

Turn your idea into a clear plan with scope, architecture, and delivery milestones.

  • Business goals and feature prioritization
  • Technical approach and architecture proposal
  • Roadmap, estimate, and launch plan

MVP Build & Launch

4-8 weeks

Launch a production-ready web or mobile product with the features that matter most.

  • UX + frontend + backend development
  • Payments, authentication, and analytics
  • Deployment, QA, and handoff

AI Automation Sprint

2-4 weeks

Automate manual workflows with practical AI tools integrated into your existing stack.

  • Workflow mapping and opportunity analysis
  • LLM/API integration and implementation
  • Monitoring, iteration, and team enablement
Process
How projects move from idea to launch
01

Strategy Call

We define your business objective, users, scope, timeline, and success metrics.

02

Proposal & Roadmap

You receive a concrete execution plan with milestones, stack decisions, and delivery dates.

03

Build & Iterate

I ship in short cycles with clear weekly updates so you can review progress continuously.

04

Launch & Support

We release confidently and continue improving based on user feedback and business metrics.

Credibility
Selected experience
COPLADEM — State of Mexico
Freelance Software Engineer · Mexico
2024 — Present
Designed and built a public-facing government transparency platform for the State of Mexico's 2023–2029 Development Plan. Developed interactive choropleth maps, multi-dimensional report engines, and progress dashboards tracking policy axes with KPI indicators using React, Node.js, and PostgreSQL.
Amazon — Alexa AI
Software Development Engineer · Seattle, WA
July 2021 — January 2024
Designed and maintained backend services using AWS (Lambda, API Gateway, OpenSearch, DynamoDB, SQS, CloudWatch) delivering personalized content to millions of Alexa-powered devices daily. Enhanced search and personalization capabilities, improving relevance and user engagement across multiple experiences.
Kinedu
Backend Developer · Mexico
March 2021 — June 2021
Developed backend features in Ruby on Rails for early childhood development apps used by parents worldwide during the pandemic. Implemented data-driven features grounded in scientific research to support motor and cognitive skill development.
Ukko Solutions
Full Stack Developer · Mexico
January 2020 — March 2021
Led development of a Ruby on Rails web application for calculating construction costs, generating blueprints, and material lists for residential projects. Built and integrated a secure invoicing system compliant with Mexican SAT regulations.
Decathlon
Full Stack Developer · Lille, France
June 2019 — December 2019
Developed internal mobile app features using Kotlin, Node.js, Firebase, and Google Cloud Functions as part of the headquarters full-stack team in Lille, France.
Capabilities
Technology I use to deliver
⌨️
Languages
JavaScript TypeScript Ruby Swift Java Kotlin Python SQL
🎨
Frontend
React SwiftUI HTML/CSS Responsive Design
⚙️
Backend
Node.js Ruby on Rails REST APIs Serverless
☁️
Cloud & Infrastructure
AWS Lambda API Gateway DynamoDB OpenSearch SQS CloudWatch IAM Firebase GCP
🗄️
Databases
PostgreSQL DynamoDB OpenSearch
🛠️
Tools & Practices
Git CI/CD Agile AI/LLM Integration
Contact
Tell me about your project

Share your goals and constraints. I'll reply with the best next step, scope direction, and timeline.

  • Response in under 24 hours
  • Free initial strategy call
  • Clear scope and timeline before coding starts
or reach me directly
estebanarocha1@gmail.com LinkedIn
Start your project