5 years of professional experience
Building scalable, high-performance, world-class UI/UX products
worked on Fintech & B2B
March 2026 -
March 2023
Perfoming as principal front-end engineer, I have lead the analysis, designing, development, refactoring and maintaining the front-end products such as customer's platform, backoffice, also leading the migration from old customer's app to Next.js implementing bussines-logic improvements, optmization as well as accesibilty, Additionally contributed to the implementation and mantaining of bussines logic features in the backend with Python/DRF
March 2023 -
February 2022
Contribute to the development, design and maintenance/refactor of a crypto marketplace site both in customer's platform and backoffice, facing challenges in problem solving according bussines logic and iterate after reviewed and customer's feedback, also proposing designing and prototyping new features.
February 2022 -
July 2021
I take part in the front-end development of CRM platform, contributing in building of intensive data modules, data representation using different types of charts, interactives modules which allow to users create their own experiences as Journey Builder, forms and document.

Dhub is a descentralized storage, smart-contract based app where you can save your pics using IPFS and have them available to whenever you want to share them with your friends.Front built using Next.js & TypeScript, connecting to smart-contract write in solidity through web3.js and handle some features with Firebase.

What’sDown is a Chat application for the Web, stablish connections through web sockets using SocketIO , Allow’s OAuth with Google , also implements server-side Render for Frotend built in React.js

Client interface for a descentralized NFT's Marketplace built with Web3 and smart-contracts on Ethereum blockchain, Randomized avatars stored on-chain with ERC721 standar contract from OpenZeppelin.
Hi! I'm Nilson Diaz. I have been working professionally as a Frontend/Full-Stack Engineer for the past 5 years, on Fintech and B2B projects, focused on delivering high-quality products with a strong emphasis on performance, scalability, and UI/UX both for customer-facing and internal backoffice projects.
I have experience working with medium to small size teams,in a feedback-oriented enviroment with assertive communication. lIn my most recent role, I served as the principal Frontend Engineer, also contributing as a Full-Stack Engineer, involved in the entire product development: analyzing business context, prototyping, designing architecture, user interfaces and data models, defining data flow and user experience, technical implementation, refactoring and maintenance, deployment, and iterating based on customer and internal feedback.
I'm always willing to step out of my comfort zone, face new challenges, learn new things, deepen my knowledge, and build interesting, impactful projects. If you have a proposal, feel free to reach out!