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Gabo Esquivel

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Senior Full-Stack Product Engineer

I build web and mobile products from frontend interfaces through backend services, databases, and cloud infrastructure. My experience spans 15+ years of TypeScript, JavaScript, React, React Native, Next.js, Node.js, and PostgreSQL, with product work across fintech, AI, Web3, and consumer applications. Fluent in English, Spanish, Portuguese, and Italian.

Highlights

  • 12+ years delivering 0→1 software products for startups and growth-stage teams
  • Built Wink's React Native banking application, AWS backend, and bank integrations
  • Developed Bitlauncher's auction, wallet, bridge, and indexed blockchain systems
  • Delivered AI applications with voice, chat, retrieval, and administrative interfaces

Experience

Software Engineer, LegalAgent

Remote • Contract • 2025

AI legal software combining bilingual voice, chat, document retrieval, and internal administration tools.

  • Shipped a voice and chat assistant in React Native (Expo).
  • Added RAG for case context and document summaries.
  • Built the admin with Microsoft SSO, documents, and retrieval.

Software Engineer, Bitlauncher

Remote • Full-time • Nov 2023 – Jul 2025

AI and crypto launchpad combining token auctions, wallets, cross-chain transactions, indexed data, and research assistants.

  • Owned product decisions and delivery planning while architecting the full stack.
  • Shipped the launchpad on Next.js 14, Supabase, viem, and wagmi.
  • Built the token bridge and Gnosis auction flows, from EOS EVM contracts to the bidding interface.
  • Indexed transactions in Supabase for queries, subscriptions, and aggregate market data.

Lead Engineer, Bitcash

Remote • Part-time • Jan 2020 – Jul 2021

Cryptocurrency and stablecoin exchange with peer-to-peer trading, realtime messaging, and browser-based signing.

  • Set up the React, Vite, Node.js, PostgreSQL, Hasura, and Google Cloud stack.
  • Built the peer-to-peer exchange, realtime chat, and matching engine.
  • Implemented WebAuthn key management for in-browser transaction signing without an external wallet.

Lead Engineer, Wink

On-site • Full-time • Apr 2015 – Mar 2018

Lead-engineering role on Wink's React Native mobile application, AWS backend, and partner-bank integrations.

  • Built the first version of Wink's React Native mobile application and AWS backend.
  • Selected the initial technology stack and established the application architecture.
  • Integrated partner-bank APIs for deposits, transfers, and account information.
  • Implemented biometric identity verification and authentication through a React Native native bridge.
  • Helped establish the engineering team responsible for the product's launch.

Lead UI Engineer, AMC Networks

Hybrid • Full-time • Nov 2012 – Apr 2014

AMC's interactive movie-rental platform with Brightcove streaming, chapter playback, and in-player content.

  • Built the interactive movie-player frontend.
  • Wired Brightcove for streaming, chapter playback, and back-office editing.
  • Added Facebook identity, sharing, and in-player extras.

Additional experience

Other full-stack work includes Knowledge's ERC-20 token platform (2017–2018), EOS Costa Rica's blockchain infrastructure (2018–2020), Emanate's music application (2019–2020), RareMint's NFT marketplace (2021–2022), ZTX's virtual-world integrations (2022–2023), and Opyn's indexed trading application (2024–2025). Earlier, I built interactive streaming interfaces at AMC Networks (2012–2014) and financial marketing applications at American Express (2010–2012).