01
NOW
Senior Software Engineer · GenAI
I design AI-powered products and multi-agent systems with deterministic validation, traceability, and human decisions at the highest-impact points.
OPEN TO CONVERSATIONS
CARTAGO, COSTA RICA · 9.8642°N / 83.9199°W
FabiánFernández
Senior Software Engineer
& GenAI Builder
I turn ambiguous problems into clear products: web experiences, cloud platforms, and AI systems that keep people in control. This is my corner of the internet.
01 / EXPERIENCE
02
PRODUCT ENGINEERING
Frontend & Full-stack
I build maintainable web experiences with React, Next.js, and TypeScript, from architecture through delivery and observability.
03
PLATFORM
Cloud & Delivery
I connect product, automation, and engineering practices to turn complex ideas into reliable, operable software.
02 / FEATURED PROJECT
2026HUMAN-IN-THE-LOOP · AGENTIC AI
Software built with agents. Decisions that remain human.
A multi-agent harness that turns epics into tickets, architecture decisions, reviewed code, and documentation through JSON contracts, resumable checkpoints, and approval gates.
VIEW ARCHITECTURE ↗1PLANNER
2ARCHITECT
3CODER
4REVIEWER
5DOCS
03 / WHAT I DO
I design useful, resilient systems that are easy to understand.
AI ProductsAgentic WorkflowsWeb PlatformsArchitectureDeveloper ExperienceCloud Delivery
04 / STACK