Marcelo is available for hire
Hire MarceloMarcelo Lopes Pinto
Verified Expert in Engineering
Full-stack React Developer
São Paulo, Brazil
Toptal member since September 19, 2019
Bio
Marcelo has been a full-stack web developer since 2015, specializing primarily in the MERN stack. He has worked on various project types, including eCommerce, web and mobile dashboards, and landing pages. Seeking greater flexibility regarding work hours and location, he transitioned to freelance work and is currently seeking project partnerships. In addition to his expertise in web development, Marcelo is also interested in the fields of music, mathematics, and physics.
Portfolio
Tilt Inc.
React, jQuery, Web UI, Web UX, HTML, JavaScript, CSS, Redux, Front-end, APIs...
Vida Global Inc.
HTML, CSS, JavaScript, HTML5, React, Next.js, GitHub, Cloud Storage...
Clued
React, TypeScript, Node.js, MongoDB, REST APIs, Front-end, APIs, Visual Studio...
Experience
- Node.js - 8 years
- React - 8 years
- JavaScript - 7 years
- Express.js - 6 years
- TypeScript - 6 years
- SQL - 6 years
- Next.js - 5 years
- MongoDB - 5 years
Availability
Part-time
Preferred Environment
Ubuntu, Visual Studio Code (VS Code)
The most amazing...
...project I've undertaken involved developing an online store for organic goods. It was tough given the fluctuating stock levels.
Work Experience
Senior React Front-end Developer
2023 - PRESENT
Tilt Inc.
- Developed a new platform from scratch utilizing React and TypeScript technology and seamlessly integrating it with an already-existing API.
- Addressed and resolved various bugs and implemented basic front-end adjustments on an existing DNN Platform website.
- Migrated an existing blog to the Ghost platform, including content, themes, and plugins, and reconfigured a domain subfolder to direct to the new Ghost blog.
- Ensured that the SEO functionalities from the previous website were properly maintained on the new platform.
- Collaborated closely with the design team to brainstorm and explore various UI/UX possibilities.
Technologies: React, jQuery, Web UI, Web UX, HTML, JavaScript, CSS, Redux, Front-end, APIs, Visual Studio, GitHub, Front-end Development, MySQL, Amazon S3 (AWS S3), Search Engine Optimization (SEO), NestJS, Azure, Prisma, Full-stack, Single-page Applications (SPAs), Cloudflare, Next.js, Web Development, Data Visualization, Responsive Web Design (RWD), API Integration, Salesforce, Figma, User Experience (UX), User Interface (UI), REST, Vercel, Front-end Design, Front-end Architecture, WCAG 2, Playwright, Context API, React Query, Web App Development, Cloud Storage, Google Maps, Payment Gateways, Builder.io
Senior React Developer
2023 - 2024
Vida Global Inc.
- Built new front-end features and integrated Google Calendar and Datadog, enhancing functionality and streamlining external service interactions.
- Refactored an unorganized JavaScript codebase, introducing React hooks and Context API to improve maintainability and performance.
- Modernized React codebase by implementing hooks and Context API, enhancing code structure, and reducing technical debt.
Technologies: HTML, CSS, JavaScript, HTML5, React, Next.js, GitHub, Cloud Storage, Google Maps, Payment Gateways
Full-stack Developer
2022 - 2022
Clued
- Developed a complete front-end system from the ground up utilizing the modern technology stack comprising Next.js, React, and TypeScript.
- Established a seamless integration with an already-existing Node.js API that operates in conjunction with a MongoDB database.
- Authored comprehensive unit tests and integration tests for the front-end system using the Jest testing framework.
Technologies: React, TypeScript, Node.js, MongoDB, REST APIs, Front-end, APIs, Visual Studio, GitHub, Front-end Development, MySQL, Amazon S3 (AWS S3), Tailwind CSS, Search Engine Optimization (SEO), Full-stack, Single-page Applications (SPAs), Cloudflare, Next.js, Web Development, Data Visualization, Responsive Web Design (RWD), API Integration, Salesforce, Figma, User Experience (UX), User Interface (UI), REST, Cypress, React Redux, Vercel, Front-end Design, Front-end Architecture, WCAG 2, Context API, React Router, React Query, Web App Development, Cloud Storage, Google Maps, Payment Gateways
Full-stack Developer
2022 - 2022
Meadow Finances
- Built a platform from scratch that allows users to generate personalized cost estimates for multiple US schools and compare them.
- Developed the front end using React and TypeScript, while AWS Lambda functions were used for the API.
- Developed comprehensive unit tests for the primary features of the front-end and back-end components using the Jest testing framework.
- Incorporated AWS Amplify, Amazon S3, Amazon CloudFront, and Amazon Cognito into the system to provide secure and reliable storage, content delivery, and user authentication.
Technologies: React, Node.js, AWS Amplify, MongoDB, REST APIs, Front-end, APIs, Visual Studio, GitHub, Front-end Development, Serverless Framework, Amazon S3 (AWS S3), Amazon Cognito, Tailwind CSS, Search Engine Optimization (SEO), Full-stack, Single-page Applications (SPAs), Cloudflare, Web Development, Data Visualization, Responsive Web Design (RWD), API Integration, Figma, User Experience (UX), User Interface (UI), REST, Cypress, Stripe, Web3.js, React Redux, Vercel, Serverless, Front-end Design, Front-end Architecture, WCAG 2, Context API, React Router, Web App Development, Google Maps, Leaflet, Payment Gateways, Redis
Full-stack Developer
2020 - 2021
Sports Card Investor
- Implemented new features and made updates to the front-end and back-end components of the system.
- Managed and tracked system deployments using cloud platforms, ensuring that all deployments were efficient, reliable, and secure.
- Implemented connections with AWS, such as AWS Lambda and Amazon S3.
- Established connections with AWS, including AWS Lambda and Amazon S3, to enable the system to interact with AWS and leverage its capabilities.
Technologies: Node.js, React, PostgreSQL, Amazon Web Services (AWS), AWS Lambda, CSS, HTML, Web UI, Web UX, SQL, Unit Testing, Architecture, REST APIs, Jest, Front-end, APIs, Visual Studio, GitHub, Front-end Development, MySQL, Amazon S3 (AWS S3), Tailwind CSS, Search Engine Optimization (SEO), Full-stack, Single-page Applications (SPAs), Cloudflare, Trello, Data Visualization, Responsive Web Design (RWD), API Integration, Vanilla JS, Figma, User Experience (UX), User Interface (UI), Cypress, Stripe, Vercel, Front-end Design, Front-end Architecture, WCAG 2, Context API, React Router, Web App Development, Google Maps, Leaflet, OpenStreetMap, Payment Gateways, Redis
Full-stack Web Developer
2020 - 2020
AR Technologies
- Fixed bugs and introduced new features to an existing platform.
- Implemented front-end changes and fixes using React Hooks.
- Implemented back-end changes and fixes using Node.js, MongoDB, and Express.js.
Technologies: WebRTC, Node.js, Material UI, React, CSS, HTML, SQL, Unit Testing, Architecture, REST APIs, Jest, Front-end, APIs, Visual Studio, GitHub, Front-end Development, MySQL, Amazon S3 (AWS S3), Search Engine Optimization (SEO), Full-stack, Single-page Applications (SPAs), GitLab, Web Development, Responsive Web Design (RWD), API Integration, Figma, User Experience (UX), User Interface (UI), REST, Front-end Architecture, Web App Development
Full-stack Web Developer
2019 - 2020
Labelbox
- Contributed to the front-end redesign of the entire website.
- Configured Google Tag Manager (GTM) and Google Analytics (GA) for cross-domain tracking and other standard features.
- Connected Next.js with third-party software such as Mandrill, Marketo, and Hubspot.
Technologies: Google Tag Manager, Contentful, Material UI, Next.js, TypeScript, React, CSS, HTML, Web UI, Web UX, SQL, Unit Testing, Architecture, REST APIs, Front-end, APIs, Visual Studio, GitHub, Front-end Development, MySQL, Amazon S3 (AWS S3), Search Engine Optimization (SEO), Full-stack, Single-page Applications (SPAs), Cloudflare, Trello, Web Development, Storybook, Responsive Web Design (RWD), API Integration, Figma, User Experience (UX), User Interface (UI), REST, Front-end Architecture, Web App Development
Full-stack Web Developer
2019 - 2020
Jexo
- Built a dashboard to link common Jira components in a single place, making it easier to manage them. Served as a full-stack freelance web developer.
- Connected the server and client with Apollo and GraphQL.
- Synchronized data in the database through Jira webhooks.
Technologies: Knex.js, Jira REST API, PostgreSQL, GraphQL, React, TypeScript, CSS, HTML, REST APIs, Jest, Front-end, APIs, Visual Studio, GitHub, Front-end Development, NestJS, Azure, Full-stack, Single-page Applications (SPAs), GitLab, Web Development, Responsive Web Design (RWD), API Integration, Web App Development
Full-stack Web Developer
2019 - 2019
Raizs Orgânicos
- Developed an eCommerce that sells organic products directly from small producers from scratch and integrated it with Odoo ERP for stock management.
- Created the client-side component of the system using React and Redux and implemented Firebase authentication to enhance the system's security and user management features.
- Developed the server-side component of the system using Sequelize to interface with a PostgreSQL database while integrating various 3rd-party libraries to enhance the system's functionality.
- Implemented Amazon Web Services (AWS) tools and services, such as EC2, Elastic Beanstalk, Amazon S3, Amazon Route 53, AWS CodeBuild, and AWS CodePipeline, into the website's infrastructure to improve its scalability, reliability, and security.
- Integrated the software with various payment APIs to facilitate secure and efficient payment processing.
Technologies: Amazon Web Services (AWS), Firebase, Node.js, Express.js, React, Sequelize, PostgreSQL, CSS, HTML, REST APIs, Jest, Front-end, APIs, Visual Studio, GitHub, Front-end Development, MySQL, Amazon Route 53, Full-stack, Single-page Applications (SPAs), Web Development, WebSockets, Responsive Web Design (RWD), API Integration, Salesforce, Ant Design, Front-end Design, Web App Development
Full-stack Web Developer
2016 - 2019
theVelops
- Worked as a full-stack developer in four different projects (the company developed various types of software for early-stage startups).
- Became proficient with the MERN (MongoDB, Express.js, React, Node.js) stack.
- Worked with different teams, using modern project management methods such as Scrum, sprint, Kanban, and others.
- Developed various types of software with React Native, GraphQL, geolocation, geofencing, and socket connections.
- Learned basic Amazon Web Services such as Elastic Beanstalk, Amazon EC2, Amazon S3, Amazon Route 53, AWS CodePipeline, and AWS CodeBuild.
Technologies: Amazon Web Services (AWS), GraphQL, Sequelize, PostgreSQL, React Native, Node.js, React, Express.js, MongoDB, CSS, HTML, REST APIs, Jest, Front-end, APIs, Visual Studio, GitHub, .NET Core, Front-end Development, MySQL, NestJS, Prisma, Firebase, Full-stack, Single-page Applications (SPAs), GitLab, Web Development, Mobile Development, WebSockets, Data Visualization, Responsive Web Design (RWD), API Integration, React Redux, Ant Design, Mapbox, Front-end Design
Front-end Developer
2015 - 2016
Boogoo
- Set CRUD functions for an SQL database.
- Connected a SQL database to PHP and JavaScript-based front end.
- Handled requests on the client side.
- Manipulated data to display it in graphics and tables.
- Styled HTML code through CSS.
Technologies: CSS3, HTML5, JavaScript, PHP, CSS, HTML, Visual Studio, GitHub, Web Development
Experience
Meadow Finances
https://app.meadowfi.com/planAn app that clarifies and simplifies the financial experience for students, improving enrollment, retention, and payment outcomes for institutions. The mission is to empower students financially and strengthen economic mobility through higher education.
App for Sports Cards Collectors
https://www.marketmoversapp.com/The application allows users to monitor real-time market fluctuations of sports card prices and track the value of their personal collections. Additionally, users can receive alerts for price changes and conduct customized searches to compare card values in the market.
Solfácil
https://www.solfacil.com.brSolfácil is a fintech that provides financing for the installation of solar panels. I developed a software solution for them to oversee the entire process.
The software works in four stages, where Solfácil and the panel installer communicate through individual dashboards. With a socket connection, they can share files in real time. Solfacil can verify if the installation meets their standards and satisfies the client's requirements.
The software works in four stages, where Solfácil and the panel installer communicate through individual dashboards. With a socket connection, they can share files in real time. Solfacil can verify if the installation meets their standards and satisfies the client's requirements.
Labelbox, Inc.
http://www.labelbox.comLabelbox aimed to revamp its website and incorporate some SEO, GTM, and GA features. I developed the whole website, primarily the front end, utilizing React, TypeScript, Material-UI, and Contentful.
Education
2010 - 2015
Bachelor's Degree in Mechatronics Engineering
Polytechnic School of the University of São Paulo - São Paulo, Brazil
Skills
Libraries/APIs
Node.js, React, React Redux, REST APIs, Google Maps, Context API, React Router, Jira REST API, WebRTC, Socket.IO, AWS Amplify, jQuery, Stripe, Web3.js, Playwright, React Query, Leaflet
Tools
Visual Studio, GitHub, Sequelize, Amazon Cognito, Trello, Google Analytics, AWS CodeBuild, Jira, Knex.js, Amazon CloudFront CDN, Prisma, GitLab, Figma, Builder.io
Languages
CSS, HTML, JavaScript, SQL, CSS3, HTML5, TypeScript, GraphQL, PHP
Frameworks
Next.js, Material UI, Tailwind CSS, Redux, React Native, Express.js, Serverless Framework, NestJS, Ant Design, Jest, .NET Core, Svelte, Vanilla JS, Cypress
Paradigms
Unit Testing, Search Engine Optimization (SEO), Responsive Web Design (RWD), REST, Mobile Development
Platforms
Mapbox, Amazon Web Services (AWS), Firebase, AWS Lambda, Vercel, Contentful, HubSpot, Ubuntu, Amazon EC2, AWS Elastic Beanstalk, Visual Studio Code (VS Code), Azure, Salesforce
Storage
Amazon S3 (AWS S3), PostgreSQL, MongoDB, MySQL, Redis
Other
Front-end, APIs, Front-end Development, Full-stack, Single-page Applications (SPAs), Web Development, Data Visualization, API Integration, Front-end Architecture, Web App Development, Web UI, Architecture, Cloudflare, WebSockets, Storybook, User Experience (UX), User Interface (UI), Serverless, Front-end Design, WCAG 2, Cloud Storage, Payment Gateways, Google Tag Manager, AWS CodePipeline, Payment APIs, Atlas, Engineering, Fintech, Web UX, Amazon Route 53, Programming, Computer Skills, OpenAI, OpenStreetMap
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