Ruben Santana - Blockchain Developer

Ruben Santana

Smart Contract Engineer & Computer Science Professor

Experienced EVM developer and educator. Certified blockchain specialist building open-source solutions and contributing to the decentralized ecosystem. Core Member ETH Venezuela & Co-founder ETH Aragua.

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Key Achievements

B9LAB Certified

Ethereum Developer Certification from London's premier blockchain academy

Community Leader

Core ETH Venezuela & Co-founder ETH Aragua, reaching communities and developers

Open Source Contributor

Multiple projects built with opensource principles, and contributing to Web3 education

Latest Articles

Insights on blockchain development, Web3 education, and the future of decentralized technology.

Privacy and Tornado Cash
Dec 2024
Privacy in DeFi: The Tornado Cash Case
Exploring the implications of privacy tools in decentralized finance and regulatory challenges.
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The Infinite Garden
Jan 2025
The Infinite Garden
A metaphor capturing Ethereum's essence: A garden is never something you finish, but something you always begin.
Read More
Blockchain Seminar 2025: Onboarding
Jan 2025
Blockchain Seminar 2025: Onboarding
A comprehensive journey introducing blockchain technology and practical applications. The event brought together professors and tech enthusiasts in a learning, networking, and professional development space focused on Web3 initiation.
Read More
View All Articles

About Me

Experience

Backend, Smart Contract Engineer

HODL Markets • 2025 - Present

Specialized development of secure smart contracts and DeFi protocols. Conducting security reviews and optimizing code for efficiency.

Professor, Blockchain Certificate Program

UCAB • 2024

Leading Solidity training courses and Web3 development methodologies.

Professor, Ethereum Developer Pack

ETHKIPU • 2024

Teaching advanced Solidity programming and security principles.

SAP Development Analyst

ArcelorMittal • 2016-2018

Integrating systems, analyzing, programming, and testing SAP and Oracle applications.

Professor, Computer Science

UPTA • 2013 - Present

Managing computer projects, teaching algorithms, programming, and blockchain development.

Education & Certifications

Ethereum Developer Certification

B9LAB Academy, London • 2019-2020

Master in Computer Science

UPTA, Venezuela • 2018-2020

Advanced studies in computational systems and software engineering

Engineering in Computer Science

UPTA, Venezuela • 2008-2013

Comprehensive foundation in computer science and engineering principles

Technical Skills

Blockchain
SolidityWeb3.jsEthers.jsViem.jsHardhatFoundryTruffle
Frontend
ReactNext.jsTypeScriptTailwind CSSMaterial-UIShadcn/ui
Backend
Node.jsExpressAPI DevelopmentDatabase Design
Web3 Tools
WagmiRainbowKitScaffold-ETHThe Graph
Standards
ERC-20ERC-721ERC-1155DeFi ProtocolsDAO Governance

Some Projects

Portfolio of blockchain applications, business solutions, and community platforms.

ETH Aragua Landing
ETH Aragua Landing
Community Platform
Ethereum Aragua community page
Next.jsCommunityWeb3
Live SiteCode
Blog Platform
Blog Platform
Content Platform
Ethereum Aragua Blog with educational content and privacy articles
BlogContentWeb3
Live SiteCode
ETH Venezuela Landing
ETH Venezuela Landing
Community Platform
Ethereum Venezuela community page
Next.jsCommunityWeb3
Live SiteCode
Faucet
Faucet
DeFi Tool
An EVM faucet site made with solidity, next, typescript, and tailwind to withdraw funds from a selected chain.
SolidityNext.jsTypeScriptDeFi
Live SiteCode
Ethereum Certification System
Ethereum Certification System
dApp
Decentralized application for certification of courses
SolidityEducationCertificatesdApp
Live SiteCode
PlayerBlocks
PlayerBlocks
Gaming Platform
Play to Earn community
GamingP2ECommunity
Live SiteCode
UBI Burner
UBI Burner
DeFi Tool
Universal Basic Income deflationary tool
SolidityUBIDeFiEconomics
Live SiteCode
Vouch Market
Vouch Market
dApp
Validate profiles in Proof Of Humanity and get rewarded
SolidityIdentityDAORewards
Live SiteCode
CryptoJustice
CryptoJustice
Legal Tech
System for Legal Procedures using Ethereum and React
SolidityLegalReactJustice
Code
Toll Road System
Toll Road System
Smart Contract
Ethereum regulated system of toll roads on which vehicles pay to drive on them
SolidityTransportationPayments
Live SiteCode
Ethereum Rock Paper Scissors Game
Ethereum Rock Paper Scissors Game
Gaming dApp
Classic game where the players bet an ETH amount, then each player submits their move, and the contract rewards the winner with the Ether wagered
SolidityGamingBetting
Code
Descentralized Library
Descentralized Library
NFT Platform
Ethereum library system where users can have book's ownership and transfer their books (ERC-721) to the library and to other users
SolidityERC-721NFTLibrary
Code
Descentralized Store
Descentralized Store
eCommerce dApp
Ethereum Store system, using an ERC-20 as the coin necesary to make transactions
SolidityERC-20eCommerce
Code
Armani Engineering Corp
Armani Engineering Corp
Business Website
Industrial automation and AI services company website
eCommerceBusinessAutomationAI
Miranda Designs
Miranda Designs
Corporate Site
Engineering design and renewable energy services company
BusinessDesignEngineeringSolar
Business Website
Business Website
Corporate Site
Enterprise website for electrical services
BusinessElectricalServices
Live Site
Splitter System
Splitter System
DeFi Tool
Amount splitter application for ethereum
SolidityDeFiPayments
Code
Remittance System
Remittance System
FinTech dApp
Remittance application for ethereum
SolidityRemittanceFinTech
Code
Corporate Shortener
Corporate Shortener
Utility Tool
A corporate link shortener with statistics page, and traffic location
AnalyticsURLStatistics
Promptopia
Promptopia
AI Platform
Promptopia is an open-source AI prompting tool for modern world to discover, create and share creative prompts
AIPromptsCommunityNext.js
Live SiteCode
Cars Showcase
Cars Showcase
Business Platform
A site made with next, typescript, and tailwind that manages the data of a car rental or a car sales store.
Next.jsTypeScriptTailwindBusiness
Live SiteCode

Let's Connect

Interested in blockchain development, Web3 education, or collaboration opportunities? I'd love to hear from you.

Get in Touch

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