Medellín, Colombia — 2026

David Raigoza

Designer.
Builder.
Researcher.

Product designer-engineer turned protocol architect. Jewelry craft to Ethereum smart contracts — always building with both hands and a full mind.

▸Lápiz de Acero2013
▸MA with Honours2016
▸EAFIT · Universidad Nacional
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Selected Work

06 projects
01 / 2026

QIE Neobank

DeFi neobank on QIE Mainnet, on-chain credit scoring, soulbound identity NFTs, and lending. · Solidity · Next.js · Figma

A full-stack DeFi neobank built for the QIE Blockchain Hackathon. Deployed smart contracts: vault, identity, lending, credit score.

SolidityERC-4626Soulbound NFTDeFiNext.jsFigma
View case study →
02 / 2026

Bruma Protocol

Ethereum · Chainlink · DeFi · Rainfall Derivatives

A trustless protocol for hedging and trading rainfall risk on Ethereum. Users can take long or short positions on precipitation data; positions settle automatically via Chainlink oracle feeds — no intermediaries.

SolidityChainlink OraclesDeFiOn-chain Settlement
View protocol →
03 / 2026

Raigoza Job Scanner

Next.js · Airtable · No-code Automation · Job Search CRM

A personal job search CRM built on Airtable as the live backend, surfaced through a custom Next.js dashboard. Tracks application funnel stages, interview schedules, and follow-up cadences in real time — the same discipline I apply to design, applied to the search itself.

Next.jsAirtableNo-codeProduct DesignDashboard
View Job Scanner →
04 / 2011–2016

Pepe Matilda

Jewelry Design · Microcasting · Brand · Material Research

Built 0→1: designed and hand-cast every piece, engineered a proprietary microcasting system, modeled products in 3D, and built the brand from identity to e-commerce UI. Won Colombia's Lápiz de Acero (2013). Exhibited at MAMM and Museo de Antioquia.

Industrial DesignLápiz de AceroBlenderMAMM
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05 / 2024

Brand & UI Design

Figma · Blender · Visual Identity · Web Mockups

Three complete brand and UI projects — MarigoldBloom, NextStep, and Pepe Matilda — each with a full landing page mockup and style guide covering typography, color systems, 3D-rendered packaging, and logo rationale.

FigmaBlenderBrand SystemsUI Design
View in Figma →
06 / 2019–

GitHub

Solidity · Next.js · Smart Contracts · Open Source

Active repo where the work lives. Smart contracts, protocol interfaces, and the codebase behind this site — version-controlled from first commit to mainnet deploy.

SolidityNext.jsSmart ContractsWeb3
View on GitHub →

About

"It's not only the technical that drives a project, it's also the emotional."

I'm a product designer-engineer from Medellín. I started casting metal, ended up writing smart contracts — and somewhere in between I dropped out of music school, won a design award, and built a stablecoin for my MA thesis.

I use AI as a creative and technical amplifier. I research Web3 security competitively on Sherlock and Code4rena. I am fluent in both the language of materials and the language of protocols.

Currently open to roles at the intersection of product, blockchain, and anything that requires someone who thinks with both hands.

SolidityEthereumChainlinkFigmaBlenderNext.jsAirtableAI ToolsCAD / 3D

Contact

Let's build something.

raigoza.david.j@gmail.com