Daniel Martins +55 31 99314-0951 martinsda@gmail.com linkedin.com/in/daniel-aa-martins github.com/martins87 Work Experience Full-stack developer, PPQ.AI, July 2025 - Present • Developing the company’s AI-driven platform with Next.js, React, TypeScript, and Node.js. Building and integrating APIs, improving performance, and ensuring scalability and usability across the product. Full-stack developer, Cinesercla, August 2024 - June 2025 • Led the development of the company’s new website and enhancement of the movie ticket purchasing experience by improving page speed and implementing a modern and responsive UI with Next.js, React, TypeScript, Tailwind CSS, Zustand and shadcn. Full-stack developer, Commonwealth Labs, December 2022 - July 2024 • Contributed to the development of a Web3 community platform with token-based governance, building full-stack features with Solidity smart contracts and a frontend in Next.js, React, TypeScript, and Tailwind CSS. Full-stack developer, Advanced Blockchain, February 2021 - October 2022 • Development of the platform’s pages of DeFi apps such as Composable, Instrumental Finance, Picasso, Mosaic with Next.js, React, MaterialUI and TypeScript. Full-stack developer, CIASC, September 2019 - January 2022 • Development of software solutions for the Public Security Department of the State of Santa Catarina, Brazil, including the Police Forces main system with concurrent 17,000 users, using Angular, Node.js, Java Spring Boot. • Developed and contributed to the National Identification System, which unified identification numbers across states in Brazil, reducing the risk of fraud. It allows citizens to use a single ID number (CPF) and access a digital version of their ID through a mobile app. Full-stack developer, ELAD, January 2019 - November 2019 • Individually developed and maintained a demo platform that facilitated the listing of real estate properties and enabled users to buy and sell fractional ownership tokens on the blockchain. • Developed using Ethereum stack (Solidity, Smart Contracts, ethersjs, Truffle, MetaMask, Remix), MongoDB, Express.js, and Node.js. Blockchain developer, GOBLOCKCHAIN, June 2017 - August 2019 • Built governance systems for the startup using the Ethereum stack (Solidity, Smart Contracts, Remix, Web3.js, Geth, MetaMask, Truffle, etc.) Java developer, Federal University of Minas Gerais, August 2011 - June 2015 • Collaborated with a team to develop and maintain the academic graduation system for university teachers and students, improving efficiency and user accessibility using JEE Platform, EJB3, JSE, Hibernate and Jasper Reports. Personal Projects Operation Blockchain • Platform with on-chain notarization system, proof of funds verification using Bitcoin signatures, multi-signature functionality, and more. Bitcoin Free Market • Currently developing a marketplace where users can list goods and services, ask a price in bitcoin and negotiate freely among other users. 1 Skills • Frontend: React, Next.js, Angular, JavaScript, TypeScript, TailwindCSS • Backend: Node.js, Go, Java Spring Boot • Blockchain: Solidity, ethers, web3.js, Wagmi, viem, RainbowKit, Bitcoin libraries • APIs: REST, GraphQL • Databases: PostgreSQL, MongoDB, MySQL Education BSc in Computer Science — 2011 Federal University of Minas Gerais — Ranked among the best Computer Science schools in the country. Certifications • Go: The Complete Developer’s Guide — 2026 • Next.js: The Complete Guide — 2024 • Understanding TypeScript — 2022 • React: The Complete Guide — 2021 • Angular: The Complete Guide — 2020 • Blockchain Hyperledger Developer — 2018 • Ethereum Hyperledger Developer — 2018 2