Marco Barcellos
Co-Founder & CTO at Jurídico AI
Toronto, Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolMarco Barcellos is a hands-on Co-Founder and CTO with 11 years of experience building and leading teams to deliver scalable, high-performance systems across cloud-native and fintech domains. Based in Toronto, he blends deep systems architecture expertise (Java, Go, AWS, Kubernetes, Kafka) with full-stack fluency in Node.js, React and several functional languages like Elixir and Erlang. He has led product rebuilds and backend teams at startups and enterprises—most recently founding Jurídico AI after serial founding at GH Technology—and has experience shipping production features and migrations in widely used open-source projects such as Open Collective’s frontend and GraphQL API. Known for moving quickly from concept to production, Marco pairs hands-on coding with people-first engineering management to drive measurable product outcomes. An unexpected strength is his history of contributing both UX-facing React work and backend bots/DB migrations, showing rare versatility across the stack.
12 years of coding experience
14 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Universidade Federal Fluminense
English, Portuguese, Spanish
Github Skills (19)
database-migrations10
javascript10
graphql-api10
postgresql10
nextjs10
ui-design10
wpgraphql10
uid10
front-end-development10
wordpress-graphql10
graphql10
nodejs10
database-migration10
backend10
react10
Programming languages (8)
Github contributions (5)
opencollective/opencollective-api
Jul 2018 - Jan 2019
Open Collective's API. A GraphQL API powered by Sequelize and PostgreSQL.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:267 commits, 72 PRs, 234 pushes in 5 months
Contributions summary:Marco contributed significantly to the Open Collective API by implementing new features and modifying existing ones. Their work included adding a BOT type for collectives, creating a comment system to inform users of expenses needing tax forms, and creating an IRS bot. The user also made several changes to the database schema through migrations.
graphql-apipostgresqlopencollectivepostgresnodejs
opencollective/opencollective-frontend
Aug 2018 - Jan 2019
Open Collective's Frontend. A React app powered by Next.js.
Role in this project:Front-end Developer
Front-end DeveloperContributions:24 commits, 22 PRs, 29 pushes in 4 months
Contributions summary:Marco primarily contributed to the frontend of the Open Collective platform, focusing on React components. Their work involved implementing new features for the order form, specifically related to showing Collectives and payment options. They also addressed several bug fixes, including issues with displaying expiration dates, and validation within the Add Funds Form. Furthermore, the user worked on updating the button label on the Hosts section of the home page.
frontendnextjsreactwebpackopencollective
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