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Gabo Esquivel - Web3 Experience

My journey into Web3 began after years of working in traditional financial systems, where I witnessed firsthand the inefficiencies of how money moves between institutions. What drew me to blockchain wasn't just the technology itself, but its potential to transform how we create and exchange value. I remember the moment in 2017 when I first deployed a smart contract—watching code autonomously execute financial logic without intermediaries felt revolutionary. Since then, I've combined my fullstack expertise with blockchain knowledge to build systems that emphasize transparency, user ownership, and permissionless innovation—values that align deeply with my belief that technology should expand access rather than restrict it.

AMEX & Mobile Neobank

My understanding of financial systems began taking shape at American Express (2009-2012), where I worked as a UI Engineer on their credit card platforms. Beyond just building interfaces, I had the opportunity to collaborate directly with payment processing teams, giving me a rare glimpse into how money actually flows through traditional systems. I was surprised by the layers of intermediaries and manual processes hidden behind what users experienced as simple transactions. These observations planted the seeds for what would later become a fascination with more efficient financial models.

In 2015, I took on the role of Lead Architect for Wink, Costa Rica's first digital bank. Building a fully-regulated neobank from scratch was eye-opening—I saw firsthand how challenging it was to innovate within established regulatory frameworks. While we succeeded in creating a more user-friendly banking experience, I found myself increasingly wondering if financial services could be reimagined more fundamentally. The limitations we encountered with traditional banking partners made me receptive to the decentralized finance concepts I would later explore.

Web3 Development

Entering Web3: Knowledge ICO

My formal entry into Web3 came in 2017 through Knowledge.io—one of the earliest platforms attempting to tokenize human expertise. What excited me about this project was its potential to create more direct relationships between knowledge sharing and reward systems. I still remember the moment I deployed my first ERC20 token to Ethereum—watching the transaction confirm and seeing the token appear in a test wallet was thrilling. As lead full-stack developer, I built both the token system and a knowledge graph visualization that made expertise networks visible to users. The technical challenges of wallet integration and token distribution taught me fundamental Web3 concepts, but more importantly, this project showed me how blockchain could create entirely new models for valuing human contributions.

EOS Era: Fast Confrimations & WebAuthnN

From 2018 to 2020, I focused on the EOS ecosystem, drawn by its performance and developer ergonomics. At EOS Costa Rica, I helped launch the EOS Mainnet, managed infrastructure for EOSIO-based validators using Terraform and Docker, and delivered custom blockchain solutions. The opportunity to help shape a nascent blockchain from its earliest days was a formative experience in my tech leadership career.

One key project was a private blockchain for Grant Thornton Labs, designed to streamline intercompany transactions and automate tax logic using a USD-pegged stablecoin. The implementation used Azure cloud infrastructure with React clients and Node.js services. The system featured immutable audit trails and public proof publication—an early example of enterprise-grade transparency on-chain. This implementation demonstrated how traditional finance and blockchain technology could complement each other in real business applications.

I also helped develop EOS Rate, a community-driven Block Producer rating tool that became widely adopted in the EOS ecosystem. Alongside product work, I led local outreach efforts through workshops, meetups, and advocacy. Between 2019 and 2020, I also worked on two Web3 consumer apps: at Emanate, I maintained the streaming platform and managed artist revenue distribution; at Sense Chat, I helped build a secure messaging app with integrated wallet and token incentives for community engagement.

DeFi: Bitcash Bank & ChainGraph

In late 2020, I joined Bitcash Bank, a crypto-native banking experiment aimed at expanding financial access. I worked across the stack—building token dashboards, backend services, and a UI for managing balances and transactions. The product centered around a consumer-grade wallet with WebAuthN-based key management and smooth onboarding, designed for mainstream usability. I contributed to the development of a P2P system and overcollateralized crypto stablecoins for each country.

During this time, I also built ChainGraph, a high-performance blockchain indexer for EOS. It enabled fast, reliable transaction data queries, and strengthened my expertise in blockchain data structures, indexing, and real-time data pipelines. This project addressed a common frustration I had experienced repeatedly—the difficulty of accessing and working with on-chain data in real-time.

The moment when I first queried complex blockchain data with a simple GraphQL request and watched real-time updates stream into a test application felt like breaking through a barrier. Beyond the technical achievements, this project reinforced my belief that reducing friction for developers is essential for broader blockchain adoption. Creating tools that make complex technology more accessible continues to be a driving motivation in my work.

Back to EVM: NFT Marketplaces

In 2021, as NFTs reached global mainstream and trading volumes exploded, I contributed to two marketplaces exploring the tokenization of real-world and gaming assets. At RareMint, I helped build a platform for minting NFTs backed by physical collectibles. I led smart contract integration using Ethers.js, metadata pipelines, and Next.js SSR for the marketplace UI, supporting the initial auctions on Polygon.

At ZTX, I delivered the Web3 interface for a gaming-centric NFT platform—focusing on WebGL wallet connectivity, minting workflows, and searchable asset discovery using Next.js and Tailwind. The frontend architecture emphasized speed, modular design, and creator-first economics.

Bitlauncher: Onchain AI Capital

In late 2022, I joined Bitlauncher, a decentralized launch platform for AI startups raising capital through batch token auctions. The protocol is a fork of the widely-used Gnosis Auction contracts, adapted for fair price discovery through sealed-bid batch auctions.

I led development of the frontend and wallet flows, integrating bidding mechanisms, auction status tracking, and real-time updates into a seamless user experience. My work ensured that participants could interact with the platform securely and transparently.

Derivatives: Opyn Options

I worked closely with the Opyn team to help set up their testnet private beta frontend, integrating the protocol into early-stage interfaces and configuring the environment for internal user testing. Beyond integration, I contributed to custom frontend components and UI/UX prototypes for trading interfaces, vault positions, margin mechanics, and option flows, and also experimented with an AI assistant to support user onboarding.

This period deepened my understanding of financial primitives onchain— especially around composability, capital efficiency, and risk-managed exposure. Working with derivatives expanded my perspective on how blockchain can create sophisticated financial instruments while maintaining transparency and accessibility—principles that continue to guide my approach to Web3 development.

Projects

    Opyn

    Opyn

    Opyn is a decentralized options protocol on Arbitrum that raised $6.7M Series A funding led by Paradigm. Their main product Squeeth is a notable DeFi-native derivative. I implemented their initial trading interface and data indexing setup for Arbitrum Testnet using Next.js, Ponder, and viem/wagmi.

    bitlauncher

    bitlauncher

    BitLauncher is an AI and crypto launchpad platform that provides early access to promising AI unicorn startups through token sales and auctions. It features a batch auction system for token sales, ensuring fair and transparent price discovery. Participants bid during a fixed period, and tokens are distributed at a uniform price, eliminating manipulation and ensuring equal opportunities for all investors.

    ZTX

    ZTX

    ZTX is a web3 metaverse platform backed by Jump Crypto and ZEPETO (a subsidiary of Naver Z Corp with over 200M users). The platform enables creators to build, play, and earn through blockchain-based NFT trading. As a software consultant in the early stages of ZTX, I was responsible for developing the react app to host the metaverse and the WebGL/EVM wallet integration.

    RareMint

    RareMint

    RareMint digitizes authenticated real-world sports collectibles as NFTs on the Polygon network, offering fractional ownership and trading of high-value items. The platform partners with professional sports organizations to ensure authenticity. I led technical efforts at RareMint to enhance the NFT marketplace's performance and maintainability, including the integration with Polygon network for efficient NFT auctions.

    bitcashBank

    bitcashBank

    Bitcash is an established crypto banking platform with over 50,000 users across Latin America, handling millions in transaction volume through its regulated financial infrastructure. The platform integrates with local banking systems in multiple countries and features BitcashDAO for community governance of its decentralized finance products. At Bitcash, my role from the start focused on infrastructure design, tech recruitment, and developer training. I later transitioned to a consulting role to guide the platform's continuous adaptation and success.

    Emanate

    Emanate

    Emanate is a blockchain-based music platform that raised over $2M in funding and partnered with major artists and labels. The platform features their native EMT token for artist payments and uses smart contracts to ensure transparent royalty distribution. At Emanate, I maintained the ReactJS web app streaming platform and developed back-office tools for artist revenue distribution, working with a distributed team across Australia, Europe, and the Americas.

    Make Sense Labs

    Make Sense Labs

    Sense.chat, developed by Sense/Make Sense Labs (backed by Tim Draper and other notable investors), was one of the first crypto messaging apps to implement self-sovereign identity and encrypted communications on blockchain. The app gained recognition at major tech conferences and blockchain events. My role at Sense involved enhancing the React Native app's performance and integrating it with the EOS mainnet for secure messaging and token functionality.

    ChainGraph

    ChainGraph

    This real-time GraphQL toolkit is designed for EOSIO/Antelope blockchain applications, offering features like data subscriptions and querying multiple blockchains. As a personal side project during my time at Bitcash, I was responsible for the architectural design, technology selection, and coding of the toolkit, including a real-time blockchain data streaming package.

    EOS Costa Rica

    EOS Costa Rica

    EOS Costa Rica is a leading block producer and infrastructure provider for EOSIO/Antelope blockchains, maintaining critical network nodes and developing custom blockchain solutions. The company is recognized for its contributions to the EOS mainnet and enterprise blockchain implementations. Joining EOS Costa Rica at its inception, I played a key role in the EOS mainnet launch, managed validators for multiple networks, and helped establish the custom development services division. My major contribution included leading the architecture for a custom private blockchain for Grant Thornton.

    EOS Rate

    EOS Rate

    EOS Rate is a community-driven tool for rating EOS Block Producers, featuring a radial graph and community input stored on the blockchain. In this project, I was responsible for the technical architecture and selecting the appropriate technology.

    Fantasy Top Shots

    Fantasy Top Shots

    This mobile app game built on NBA Top Shot NFTs was developed for the 2022 Flow Hackathon. It integrates with NBA Top Shot's marketplace, which has processed over $1B in NFT transactions and is officially licensed by the NBA. The game received recognition at the Flow Hackathon among hundreds of participating projects. My contribution to this project was in the game's design and development, utilizing my skills in blockchain technology and mobile app development.

    Substrate Contracts UI

    Substrate Contracts UI

    Substrate Contracts UI is a key developer tool maintained by Parity Technologies (founded by Ethereum co-founder Dr. Gavin Wood) for the Polkadot ecosystem, which has a market cap exceeding $7B. The UI simplifies WASM smart contract deployment and interaction on Substrate-based blockchains used by dozens of major projects. I contributed to the project by enhancing code quality through multiple open-source contributions and gained experience in building dApps with Substrate.

    Wizard World

    Wizard World

    Wizart.world is a groundbreaking platform at the intersection of AI and blockchain that connects to OpenAI's DALL-E models to generate AI images and mint them as NFTs on the Flow blockchain. Developed during the Flow Hackathon 2022, the project was among the first to combine generative AI with blockchain-based ownership rights for digital art. My role involved the app's development, focusing on integrating OpenAI's models for image generation and ensuring smooth functionality with the Flow blockchain through Niftory's NFT infrastructure.

    Knowledge.io

    Knowledge.io

    Knowledge.io was one of the first blockchain platforms aimed at knowledge-sharing with a token-based reward system. The project successfully completed its ICO in 2018, raising funds to build a decentralized knowledge ecosystem that included partnerships with advertising networks to monetize user expertise. My role at Knowledge included leading the architecture of the Ethereum-based token and supporting systems for their successful ICO, and forming a skilled development team across three countries.

Let's Work Together

I typically work through remote 1099 contracts via my US-based company, Blockmatic Labs LLC. This setup gives clients straightforward contracts, built-in compliance, and IP protection. Based in Costa Rica, I operate on US Mountain Time and am just a short flight from major US cities.

If you’re exploring something ambitious—a decentralized system, an AI-powered product, or an idea that needs a strong technical foundation—I’d be happy to hear from you.

US +13156452818CR +50670367089contact@gaboesquivel.comgaboesquivel.com/calgithub.com/gaboesquivellinkedin.com/in/gaboesquivel
More details on my work can be found on my website gaboesquivel.com.

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I work on 1099 through Blockmatic Labs LLC.

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