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sepanyol/README.md

Hi, I’m Daniel Ceballos πŸ‘‹

Web3 Developer | Smart Contract Engineer | Full Stack Builder

πŸ”— Website β€’ πŸ’Ό LinkedIn β€’ βœ‰οΈ [email protected]


🧱 About Me

I'm a passionate software engineer with 15+ years of experience – and since 2022, fully immersed in the world of Web3.

In recent years, I've focused on smart contract development, decentralized architectures, and cross-chain ecosystems. I thrive at the intersection of code quality, security, and innovation.


⚑ What I’m Doing in Web3

πŸš€ Solidity Development

I design and implement secure and optimized smart contracts with:

  • Solidity, Foundry, Hardhat
  • OpenZeppelin & Solidstate
  • Static code analysis (Slither)

πŸ”’ Smart Contract Security

Security first! My contracts are:

  • Covered with 100% test coverage
  • Audited with Slither & external audits
  • Monitored using Tenderly

πŸŒ‰ Cross-Chain & Interoperability

Working on projects using:

  • Chainlink CCIP
  • Celer cBridge & Interchain Messaging

πŸ› οΈ Core Web3 Tech Stack

  • Solidity, Foundry, Hardhat, Tenderly
  • OpenZeppelin, Slither, Chainlink, Celer
  • TypeScript, React, Next.js, Node.js
  • Docker, CI/CD, GitHub Workflows

πŸ’‘ Next Goals in Web3

  • Dive deeper into Zero-Knowledge Proofs (ZKPs)
  • Explore, utilize and leverage Account Abstraction (ERC-4337)
  • Improve Web3 UX and onboarding experiences

πŸš€ Project: yieldz.cc – A Platform for Single-Sided Staking

I am the founder and sole creator of yieldz.cc. From the initial idea to the final product, I fully conceptualized, designed, and developed the platform myself.

πŸ”§ My Role & Responsibilities

  • Product Design
    Developed the concept for a secure and easy-to-use staking platform focused on single-sided staking – no LP tokens, no impermanent loss.

  • Smart Contract Development
    Wrote and deployed all smart contracts using Solidity, with a focus on security and extensibility.

  • Frontend Development
    Built a user-friendly interface with React, Next.js, and Connectkit (with viem), including seamless Web3 wallet integrations.

  • Backend & Infrastructure
    Designed and implemented backend architecture using Node.js and Express, with on-chain data handling and performance monitoring.

  • Security & Audits
    Led the smart contract audit process and collaborated with external auditors to ensure contract safety and protocol robustness.

  • Go-to-Market Strategy
    Launched the platform, defined the brand identity, and built the early adopter community from the ground up.

πŸ’‘ About yieldz.cc

yieldz.cc is a decentralized platform that allows users to earn yield with just a single token. No LPs, no impermanent loss, no unnecessary complexity – just clean, simple staking. Designed for everyone from DeFi beginners to seasoned crypto users.


Built 100% by me – from idea to launch πŸš€


πŸ“« Let’s Connect

I'm always open to chat about smart contract security, Web3 architecture, and the future of decentralized systems.

Feel free to connect or reach out!

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