Agentic Software Engineer 路 AI-first, CLI-driven 路 Head of Application Development at 3AComposites 路 Freelance software engineer since 2020
I build production full-stack systems where AI coding agents write most of the implementation code, and I own the parts that decide whether it works: architecture, specifications, context, and review. I've shipped 8+ full-stack applications this way across client work and my own products.
- Terminal-first agents. ~90% of my development happens in the CLI with OpenAI Codex and Claude Code.
- Specs before code. I turn product requirements into machine-executable, AI-friendly specifications with clear acceptance criteria.
- Context engineering. I structure codebases, docs, and agent context files so AI output stays reliable and context-efficient.
- Human-in-the-loop by design. I use interactive HTML artifacts as the collaboration surface between me and the agent, for reviewing plans, decisions, and output, with stricter validation on high-impact flows.
- Tested and shipped. E2E and integration testing, CI/CD, and delivery to AWS.
| Area | Tools |
|---|---|
| AI engineering | OpenAI Codex CLI, Claude Code CLI, OpenAI GPT and Anthropic Claude models |
| Languages | TypeScript, JavaScript, C#, Python, Dart, SQL |
| Frontend | Vue.js, Nuxt, React, Flutter, PWA |
| Backend | Node.js, NestJS, Express.js, .NET |
| Databases | PostgreSQL (Supabase), SQL Server, MongoDB, SQLite (Turso) |
| Cloud & DevOps | AWS (EC2, SES, SNS and more), Azure DevOps, Git, CI/CD |
Weather alerts system (client project) 路 NestJS, AWS EC2, SES, SNS Forecast-driven alerting for 14 locations covering ~10,000 hectares in Ecuador. A rules engine evaluates configurable multi-condition thresholds every 30 minutes and sends email and SMS alerts. Built with a fully agentic workflow.
Capacity-first visual scheduling SaaS (own product) 路 Nuxt, AWS Plans software delivery against real team bandwidth, not just task lists or timelines, to expose bottlenecks and burnout risk before they happen. Validated with real engineering teams from day one.
Workout-tracking SaaS (own product) 路 Nuxt PWA, NestJS, PostgreSQL, Flutter Strength and cardio logging with reusable templates, muscle-fatigue heatmaps, 1RM tracking, and a consistency graph. Built end to end with an agentic workflow; native Android and iOS apps in progress.
Most of my code lives in private Azure DevOps and client repositories, so public activity here is only a small slice of what I ship.