Available for new opportunities
Esteban Arocha

Esteban
Arocha Ortuño

Full Stack Engineer with 5+ years building scalable systems at Amazon, government platforms, and fintech products. From serverless architectures to native iOS apps.

Building software
that matters

I'm a Full Stack Software Engineer based in San Luis Potosí, Mexico — with a CS degree from Tecnológico de Monterrey and experience spanning from Amazon's Alexa division in Seattle to government transparency platforms and AI-powered fintech tools.

I excel at rapid context switching and independent delivery: quickly onboarding to new codebases, designing end-to-end features, and shipping reliable software across diverse domains. Whether it's serverless backends on AWS, responsive React frontends, or native iOS apps in SwiftUI — I get things done.

I'm passionate about building products that solve real problems, and I'm particularly drawn to projects where technology meets meaningful impact.

5+
Years of experience
3
Countries worked in
M+
Users impacted at Amazon
7+
Languages & frameworks
Featured work
Fintech · AI

Tradr

An AI-powered trading platform featuring an autonomous council of specialized analysts — fundamentals, growth, technical, macro, and risk — that deliberate and produce consensus-driven investment decisions with confidence scores and risk assessments.

React Node.js AI / LLM APIs TradingView Alpaca API
  • Multi-agent AI council with 5 specialized analyst roles
  • Real-time stock research with TradingView chart integration
  • Automated order execution with portfolio management dashboard
  • Performance tracking, leaderboards, and tax reporting
Government · GovTech

COPLADEM — Plan de Desarrollo

A public-facing government transparency and data analysis platform for the State of Mexico's 2023–2029 Development Plan. Provides citizens and officials with accessible project planning data, budget tracking, interactive maps, and analytical insights across 7 policy axes.

React Node.js PostgreSQL RESTful APIs
  • Interactive choropleth map of 125 municipalities with quarterly data
  • Multi-dimensional report engine with 38+ filterable columns
  • Progress dashboards tracking 7 policy axes with KPI indicators
  • Government analysis tool comparing departments and agencies
Wellness · iOS

Medita Yoga

A native iOS wellness app built with SwiftUI featuring guided yoga routines and meditation sessions. Clean, calming UI with custom pose illustrations, progressive difficulty levels, and timed guided flows.

SwiftUI Swift iOS Native App Store
  • Published on the App Store — independently built end-to-end
  • Guided routines with timer, progress tracking, and pose illustrations
  • Beginner to advanced difficulty progression
  • Daily inspirational quotes and calming design language
Where I've worked
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.
Tools I work with
⌨️
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
Let's build something
together

Currently open to new opportunities — full-time roles, freelance projects, or interesting collaborations.