Staff Software Engineer | Frontend Specialist | React | React Native | Design Systems
Brazil
+55 85 98210 4039
euduardoborges@gmail.com
https://www.linkedin.com/in/euduardoborges
https://eduardoborges.dev
https://github.com/eduardoborges
Staff Software Engineer with 13+ years of experience building frontend, mobile, and platform systems for fintech, banking, crypto, payments, retailtech, solar energy, e-commerce, and law tech products.
Most of my work sits between product engineering and technical leadership: React, React Native, TypeScript, GraphQL, frontend architecture, design systems, performance, automated testing, observability, and cloud platforms. I have improved user satisfaction from 3.5 to 4.4, increased frontend delivery efficiency by 40%, helped scale financial platforms to millions of users, and built products used by support, banking, crypto, retail, and legal teams.
I also maintain open-source projects in the React and React Native ecosystem, currently serving over 100k weekly downloads.
WealthCounsel, LLC
Remote
January 2026 - Present
- Build AI agents and product experiences for law tech.
- Work on frontend architecture, product engineering, and AI-assisted workflows.
- Collaborate on scalable solutions for legal technology products.
Solfácil
São Paulo, Brazil
May 2024 - January 2026
- Led frontend engineering initiatives for Brazil's leading solar energy fintech.
- Improved user satisfaction from 3.5 to 4.4 by developing scalable, high-performance interfaces for financial applications.
- Delivered new UI features and improved financial product experiences using GraphQL, Vue.js, automated testing, and observability.
- Worked with Product, Design, Backend, and DevOps teams to connect technical decisions with business outcomes.
- Contributed to engineering culture through technical leadership, architecture discussions, mentoring, and quality standards.
InHouse Market
Fortaleza, Brazil
May 2023 - May 2024
- Led technology strategy, software architecture, and product development for a retailtech company.
- Designed and built a platform connecting autonomous stores, mobile applications, and centralized management systems.
- Delivered features for instant payments, secure access, store operations, and business management.
- Managed the engineering team and supported technical decisions across frontend, backend, infrastructure, and product.
- Improved Google Cloud Platform infrastructure to support stable expansion across autonomous stores, mobile apps, and central management systems.
Stone
São Paulo, Brazil
November 2022 - April 2023
- Developed a shared React and TypeScript component library, increasing frontend engineering efficiency by 40%.
- Led initiatives related to Design Systems, Frontend Architecture, accessibility, performance, and reusable UI foundations.
- Collaborated with multiple teams to improve user experience, visual consistency, developer experience, and frontend productivity.
- Supported the adoption of scalable frontend standards across internal platforms.
Capitual
São Paulo, Brazil
June 2021 - November 2022
- Led multiple international engineering teams in crypto, banking, payments, and financial services.
- Delivered features including exchange integrations, payment flows, crypto-fiat conversion, and banking integrations.
- Improved cloud microservices, platform reliability, security, and compliance.
- Helped scale a financial platform serving millions of users.
- Mentored engineers and built high-performance teams focused on delivery, ownership, and technical quality.
Capitual
Birkirkara, Malta
March 2021 - June 2021
- Managed engineering initiatives for crypto products and financial services.
- Supported team delivery, technical planning, and product execution in a distributed environment.
Americanas S.A.
Rio de Janeiro, Brazil
November 2020 - March 2021
- Defined frontend engineering standards across multiple teams.
- Worked with React, GraphQL, Micro Frontends, and Elasticsearch-based search systems.
- Improved frontend architecture, performance, real-time updates, and reliability for an Elasticsearch-based search experience.
- Reduced search latency and improved catalog stability during high-traffic periods.
Stone
Rio de Janeiro, Brazil
October 2019 - November 2020
- Built internal web applications for customer support and operational teams using React, Hooks, Context API, and REST APIs.
- Delivered merchant onboarding, document analysis, registration approval, and support operation flows.
- Improved usability and operational speed for support teams.
- Reduced training complexity by creating clearer internal systems for registration approval and document review.
Capitual
Malta
January 2018 - May 2019
- Built Capitual's end-user mobile application from scratch.
- Delivered mobile features for crypto wallets, fiat wallets, instant conversions, transfers, and payments.
- Integrated blockchain APIs, banking APIs, and security-sensitive financial flows.
- Implemented security practices and supported the first successful release of the mobile application.
Getinfo Soluções Corporativas
Aracaju, Brazil
September 2016 - December 2017
- Worked as a full stack developer on projects for public and private sector clients.
- Developed custom web and mobile applications from requirements gathering and architecture to development and deployment.
- Delivered 2 ERP systems and 4 web portals using AngularJS, Laravel, and SQL databases.
- Maintained a 95% client retention rate through timely delivery, quality assurance, and close collaboration with business analysts and designers.
Freelance
Remote
August 2013 - September 2017
- Operated a software development business delivering custom web and mobile solutions.
- Worked with clients in finance, technology, banking, and cryptocurrency sectors, including Foxbit, BitcoinToYou, Febraban, Ascoob, and others.
- Designed and implemented features for cryptocurrency exchanges, payment systems, management platforms, and corporate tools.
- Managed the full software delivery lifecycle, including requirements gathering, architecture, development, deployment, maintenance, and client communication.
- Maintainer of
use-mask-input, a React library for input masks compatible with React Hook Form. - Project focused on React, forms, masking, developer experience, and frontend productivity.
- Open-source projects currently serve over 70k weekly downloads across the React and React Native ecosystem.
Federal University of Sergipe
2015 - 2020
Faculdade Dom Luiz de Orleans e Bragança
2013 - 2015
- Portuguese: Native or Bilingual
- English: Full Professional (B2)
- Spanish: Elementary