Hi, I’m Renato Ferreira. I’m a Brazilian full‑stack software engineer and tech lead with over 10 years of experience delivering scalable web and mobile applications. I’m proficient with JavaScript, TypeScript, Node.js, React, and modern frameworks, and I have a strong interest in blockchain, smart contracts, Web3 (ethers.js, web3.js), and AI automation. I’m passionate about AI workflow automation, decentralized applications, and integrating blockchain solutions into scalable platforms. I enjoy leading cross‑functional teams, mentoring engineers, and delivering high‑quality, innovative software in fast‑paced environments. I’m dedicated to creating exceptional user experiences and driving technical excellence. I thrive on building robust architectures, improving UI/UX, and mentoring developers to grow their skills. I’m motivated by solving complex problems and delivering solutions that scale, with a focus on usability, performance, and impactful impact for users.

Renato Ferreira

Hi, I’m Renato Ferreira. I’m a Brazilian full‑stack software engineer and tech lead with over 10 years of experience delivering scalable web and mobile applications. I’m proficient with JavaScript, TypeScript, Node.js, React, and modern frameworks, and I have a strong interest in blockchain, smart contracts, Web3 (ethers.js, web3.js), and AI automation. I’m passionate about AI workflow automation, decentralized applications, and integrating blockchain solutions into scalable platforms. I enjoy leading cross‑functional teams, mentoring engineers, and delivering high‑quality, innovative software in fast‑paced environments. I’m dedicated to creating exceptional user experiences and driving technical excellence. I thrive on building robust architectures, improving UI/UX, and mentoring developers to grow their skills. I’m motivated by solving complex problems and delivering solutions that scale, with a focus on usability, performance, and impactful impact for users.

Available to hire

Hi, I’m Renato Ferreira. I’m a Brazilian full‑stack software engineer and tech lead with over 10 years of experience delivering scalable web and mobile applications. I’m proficient with JavaScript, TypeScript, Node.js, React, and modern frameworks, and I have a strong interest in blockchain, smart contracts, Web3 (ethers.js, web3.js), and AI automation. I’m passionate about AI workflow automation, decentralized applications, and integrating blockchain solutions into scalable platforms. I enjoy leading cross‑functional teams, mentoring engineers, and delivering high‑quality, innovative software in fast‑paced environments. I’m dedicated to creating exceptional user experiences and driving technical excellence.

I thrive on building robust architectures, improving UI/UX, and mentoring developers to grow their skills. I’m motivated by solving complex problems and delivering solutions that scale, with a focus on usability, performance, and impactful impact for users.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
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Language

Portuguese
Fluent
English
Advanced
Dutch
Beginner

Work Experience

React Tech Lead at Mercell
October 1, 2025 - October 1, 2025
Leading technical execution and collaborating with group architects to establish a consistent, scalable, and maintainable codebase. Spearheading migration of legacy features into the core platform, improving performance and reducing technical debt. Designing and maintaining micro-frontend architectures, enhancing UI/UX, and mentoring developers.
Senior Frontend Engineer at MKX / Success Factory
July 1, 2024 - July 1, 2024
Led a Scrum team in designing, developing, and maintaining web and mobile applications. Architected scalable solutions and mentored developers. Developed a trader insights platform allowing users to follow and copy investment suggestions from trading specialists, improving engagement and platform adoption.
Senior Web3 Frontend Engineer at Fujitsu
December 1, 2023 - December 1, 2023
Collaborated globally to build blockchain applications using Node.js, Next.js, React, and GraphQL. Contributed to the development of blockchain solutions and mentored junior developers.
Co-Founder & Full-Stack JavaScript Developer at Qarwash.com
March 1, 2022 - March 1, 2022
Developed and deployed a mobile platform connecting car wash businesses with customers. Architected backend with Node.js and GraphQL, and built in DigitalOcean using Docker.
Senior Frontend Engineer at SO Connect
December 1, 2021 - December 1, 2021
Led frontend development for product management and customer feedback integration. Improved testing coverage, mentored developers, and streamlined Agile processes.
Frontend Engineer at VONQ
December 1, 2020 - December 1, 2020
Developed recruitment marketing platform, enhancing usability and integrating PHP APIs. Implemented unit and integration tests and improved platform scalability.
Senior Frontend Developer at Thales Group
July 1, 2019 - July 1, 2019
Developed reusable web components with Polymer and TypeScript, improving global software consistency. Led a small team, implemented TDD, and collaborated across teams to ensure secure, high‑quality delivery.
Full-Stack Developer at Legislative Assembly of Pernambuco
September 1, 2015 - September 1, 2015
Developed and maintained internal systems with C#, SQL Server, and AngularJS, collaborating closely with the design team to ensure a user-friendly interface and seamless user experience.

Education

Master in Blockchain & Crypto at Nucleo School, Spain
October 1, 2023 - April 1, 2024
Artificial Intelligence and Digital Automation at UNIFECAF, Brazil
September 1, 2024 - November 14, 2025
Analysis and Development of Systems at Unibratec University, Brazil
January 1, 2013 - January 1, 2018

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Media & Entertainment