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alejandrehl/README.md
Alejandro prompting in Claude Code — shipping production software with agentic AI

Alejandro Hernández Lara

Senior Software Engineer @ Thoughtworks · Founder @ KaiNext

Platform engineering · applied AI · agentic workflows — I diagnose before I build, then I ship.

alehernandez.cl kainext.cl LinkedIn Email Built with Claude Code Based in Santiago, Chile


I work in the space between code and capital — designing scalable architecture, applying AI and modernizing platforms for production systems at enterprise scale. I diagnose before I build: years at the intersection of engineering and business operations taught me to read a system as a single piece, from the database to the P&L.

  • 🏛️ Thoughtworks — Senior Consultant, embedded in Platform Engineering for a leading Latin American airline: cloud-native foundations, developer self-service tooling, and AI-assisted engineering in regulated, high-stakes environments. Highlights: a per-merge-request ephemeral-environments platform on GCP, the team's AI-agent command center, and an MCP server for self-service PostgreSQL CDC.
  • 🚀 KaiNext — the engineering consultancy I lead as founder: I build and ship my own products end to end, deliver production systems and audits for clients, and run an agent-orchestration practice with uncompromising engineering rigor.

🔭 Focus: platform engineering, developer self-service and AI agents in production.

🚢 Shipped

Product What it is Stack
NutriCoach AI nutrition-coaching platform — web + PWA + API + iOS & Android apps, adaptive targets and a clinical assistant NestJS · Postgres · React
MiCodigoPostal.Fun Chilean postal codes by commune or exact address — free, bilingual, public API, no key required Astro · NestJS · Postgres
kainext-binance-mcp Security-first MCP server for Binance Spot — 25 tools, human-gated execution, on PyPI and the official MCP Registry Python · MCP

🛠️ Tech I work with

TypeScript Go Python PHP Dart

Next.js React NestJS Laravel React Native Flutter Astro

PostgreSQL MongoDB GCP Google Cloud Run AWS Railway Terraform Docker

Anthropic Claude OpenAI

⚡ How I build

Claude Code is my primary environment — I run an agent-orchestration practice across a multi-domain command center, so software gets built, modernized, and audited with agents under tight engineering rigor. Most of what I ship runs on Railway.

Deploy on Railway with referral code KJa0VN

Deploying on Railway? Use my referral code KJa0VN (railway.com?referralCode=KJa0VN) — we both get credit.

📊 GitHub

Followers Public Repos Profile

Alejandro's contribution graph as a snake game

Zero tolerance for mediocrity. Diagnose before you build. Ship.

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  1. kainext-binance-mcp kainext-binance-mcp Public

    Security-first MCP server for Binance Spot and a crypto-analysis assistant: the AI reads markets, applies a documented methodology (frameworks, curated sources, discipline) and proposes trades, whi…

    Python

  2. Laravel-Webpay Laravel-Webpay Public

    Example integration of Transbank's Webpay Plus payment SDK in a Laravel web application — online card payments for Chile.

    PHP 9 2

  3. simple-rut-validator simple-rut-validator Public

    Lightweight, dependency-free npm package to validate and format Chilean RUT / RUN identifiers.

    JavaScript 4 1

  4. nestjs-rest-template nestjs-rest-template Public

    Production-ready NestJS REST API starter — MongoDB with Typegoose, JWT authentication, SendGrid email, and Swagger/OpenAPI docs.

    TypeScript 3 4

  5. novios-app novios-app Public

    Modern full-stack wedding management platform. Couples can create personalized wedding pages, manage guest lists with RSVP, and receive monetary contributions. Built with Next.js 16, TypeScript, Po…

    TypeScript 1 1