Lopez Onchain

About Me

I'm Lopez, a full-stack developer with several years of experience in traditional software, blockchain, and security. In recent years I've been deep into Web3, building everything from smart contracts to full platforms with AI agent integration.

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Experience

Ambitious projects spanning traditional web, blockchain infrastructure, and AI agent systems. Full-stack delivery from DB schema to UI, including Farcaster mini-apps, MCP servers for Claude AI, agent API platforms, automated onchain routines, and enterprise software. Strong background in cybersecurity and scalable architecture.

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Tech Stack

Languages

Solidity, Rust, TypeScript, JavaScript, Java, C#

Frameworks

React, Next.js, Node.js, Express, Spring, Unity

Blockchain & AI

EVM, Base, Solana, Farcaster, Base Smart Wallets

Databases

PostgreSQL, MongoDB, MySQL, Oracle

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Passion

Building systems where AI, blockchain, and great UX converge. Designing agent infrastructures that make complex onchain interactions effortless.

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Goal

To lead the agentic revolution in Web3. Open, secure, and disruptive infrastructure that empowers developers and AI agents alike.

✨ Blockchain Dev

🤖 AI Agent Builder

Skills

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Blockchain

SolidityRustEVMSolanaSmart ContractsDeFi

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AI & Agents

MCP ProtocolAgent APIsClaude AIAgentic Workflows8004x402

🎨

Frontend

ReactNext.jsTypeScriptTailwind CSSFramer MotionFarcaster & Base Miniapps

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Backend

Node.jsExpressPostgreSQLMongoDBREST APIsWebSockets

Projects

Indexy

WarpPay

PingGate

What will be next?

Indexy

Freelance & Lead developer. Crypto index tracking platform. Real-time market data, Agent API, MCP server for Claude AI, Farcaster mini-app on Base, automated contest system, and Base smart wallet auth via Privy.

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Work History

LIVE

Lead Developer

Indexy

July 2025 – Present

Remote

Joined as a freelance developer contributing to the full-stack of Indexy, a crypto index tracking platform. Working across the whole stack, from API architecture to the frontend.

ReactTypeScriptNode.jsPostgreSQLMCPFarcasterBasePrivySmart WalletsAgent API

LIVE

Independent Web3 Developer

Freelance

February 2024 – Present

Remote

Building across the Web3 ecosystem. Farcaster mini-apps, payment tools, marketplace platforms, and onchain games on Base.

SolidityFarcasterReactBaseWeb3EVMGameFi

Senior Full-Stack Developer

Ohtic

April 2022 – January 2024

Barcelona, Spain

Development and maintenance of systems for external clients: websites, apps, and port management systems among others.

ReactVueJavaSpringMongoDB

Full-Stack Developer

Softtek

September 2019 – March 2022

Ávila, Spain

Development and maintenance of systems for external clients: websites, mobile apps, APIs, warehouse management, automated systems, and fast data search.

JavaSpringAngularJavaScriptNeo4jMicroservices