> ENGINEER / BUILDER / ATHLETE
Natan Rivera
Mechanical Engineer from Rice University.
National pole vault record holder for El Salvador.
MEP Assistant Project Manager by day. Building AI products, fitness tech, and tools for Latin America by night.
// ABOUT
Who I Am
Pole Vault
National Record Holder
El Salvador
Education
Rice University
B.S. Mechanical Engineering
Day Job
MEP Asst. PM
Data Centers & Advanced Manufacturing
Building
5 Products
AI, Fitness, Fintech
I'm a mechanical engineer turned builder. I graduated from Rice University and represented El Salvador in pole vault — I still hold the national record.
By day, I work as an MEP Assistant Project Manager on data center and advanced manufacturing projects. By night, I build software — AI-powered fitness apps, fintech tools for Central America, and hardware systems that bridge the physical and digital.
I believe in owning the full stack — from BLE sensors on a Raspberry Pi to the AI agent that coaches your workout. If it can be built, I want to build it.
TECH STACK
// PROJECTS
Things I've Built
From AI coaching agents to BLE heart rate sensors on Raspberry Pi — I like building across the full stack.
WORKA
LIVEAll-in-one AI fitness coach app. Solo-built from ground up — React Native/Expo mobile app, TypeScript backend, AI coaching agent with LangGraph, wearable integrations (Apple Health, BLE sensors). 22 paying users.
Fit Instinct
LIVEFitness studio website and online sales system. Built the site, booking flow for free trial classes, and the sales pipeline. Next.js with biometric data integration via Uptivo.
BLE Heart Rate Platform
BUILDINGVertically integrated heart rate tracking system — BLE/ANT+ sensors on Raspberry Pi feeding real-time workout data into our own CRM. Full stack ownership from sensor to dashboard, no third-party dependencies.
CuentasClara
LIVEFree financial tracking tool for Salvadorans — a budgeting platform similar to Monarch for managing income and expenses. Built to solve the lack of accessible personal finance tools in Central America.
Noah AI — Second Brain
ARCHIVEDAI-powered note organizer inspired by Cursor but for notes. Built agentic functions with LangGraph, RAG pipeline with vector embeddings (Milvus), and a knowledge graph (Neo4j) for automatic note linking and retrieval.