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J

Jair E.

AI & Machine Learning Engineer · Junior

Mexico · Rate on request

Professional Overview

Software Engineer & Founding Engineer specializing in Full-Stack Architecture and AI Integration. Experienced in building complex web apps with React, TypeScript, Node.js, and Python. Proven track record designing LLM workflows via OpenRouter and managing scalable PostgreSQL systems on serverless infrastructure

Experience

Company
Mila.gg
Jun 2025 – Sep 2026
Role title
Software Engineering

AI Expertise

AI & Machine Learning Engineers Data Science & Analytics

Skills

Python SQL Docker OpenAI API AWS AI Agents Azure Prompt Engineering

Employment Type

Full-time

Description of Responsibilities

  • Built Excel & Word POC to V2 with Cursor-like AI and MCP tool calling.
  • Engineered complex UI state management with undo/redo and shortcuts in React.
  • Developed REST APIs in Node.js and Python for automated data workflows.
  • Integrated OpenAI and Anthropic LLMs into backend services via OpenRouter.
  • Maintained Docker server infrastructure and scaled PostgreSQL databases.

Key Achievements / KPIs

  • Rebuilt legacy jQuery POC into production-ready React and TypeScript.
  • Scaled PostgreSQL database using Neon serverless cloud infrastructure.
  • Maintained dedicated server Docker infrastructure with on-call uptime.
Company
Mila.gg
Jun 2025 – Sep 2026
Role title
Software Engineering

AI Expertise

AI & Machine Learning Engineers Data Science & Analytics

Skills

Python SQL Docker OpenAI API AWS AI Agents Azure Prompt Engineering

Employment Type

Full-time

Description of Responsibilities

  • Built Excel & Word POC to V2 with Cursor-like AI and MCP tool calling.
  • Engineered complex UI state management with undo/redo and shortcuts in React.
  • Developed REST APIs in Node.js and Python for automated data workflows.
  • Integrated OpenAI and Anthropic LLMs into backend services via OpenRouter.
  • Maintained Docker server infrastructure and scaled PostgreSQL databases.

Key Achievements / KPIs

  • Rebuilt legacy jQuery POC into production-ready React and TypeScript.
  • Scaled PostgreSQL database using Neon serverless cloud infrastructure.
  • Maintained dedicated server Docker infrastructure with on-call uptime.

Areas of Expertise

AI & Machine Learning Engineers

Design, train, and ship production ML models — from data pipelines to model inference at scale. Covers supervised learning, neural networks, LLM integration, and model optimisation.

Open to

Full-time

Experience Level

Junior

Current location

Mexico

Time Zone

Mexico City UTC-6

Primary Work Language

Spanish

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