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Matheus Araújo

@matheusarajo1

Senior Software Engineer at RockItCoin, building cryptocurrency payout systems, compliance workflows, and customer and fleet operations tools.

Brazil

Message

At RockItCoin, I architected a staged migration of cryptocurrency payouts to an event-driven vault pipeline, with controlled rollout and retry-safe payment handling. I also built an automated FinCEN filing workflow from transaction selection through submission and review.

I led delivery of Next.js customer and fleet operations tools for KYC and OFAC review, transactions, balances, and monitoring. For kiosk operations, I improved settings synchronization and implemented signed device-key enrollment and rollback.

Earlier, I built and shipped a React Native marketplace app at Aua – Compre do Pequeno!, and developed frontend and full-stack products at Digital Pages, Optimum Strategic Solutions, and Integrated Operations Center.

Experience

Work history, roles, and key accomplishments

Current

Senior Full-Stack Software Engineer

Current

RockItCoin

Aug 2022 - Present (4 years 2 months)

Architected a staged migration of cryptocurrency payouts to an event-driven vault pipeline and led the internal dashboard team delivering Next.js tools for KYC, OFAC review, and compliance. Delivered React Native wallet and retail cash-to-crypto flows and built automated FinCEN filing workflows.

TypeScript JavaScript C#Python SQL React Next.js React Native NodeJS Express Cloud Functions For Firebase Firestore Pub Sub BigQuery Docker CI CD Vercel Jest Playwright Git

Full-Stack Software Engineer

Aua – Compre do Pequeno!

Apr 2020 - Jul 2022 (2 years 3 months)

Built and shipped a React Native marketplace app with Google Maps-based discovery and Firebase media storage, and designed Node.js and Express APIs with JWT authentication and SendGrid email.

React Native Firebase NodeJS Express JWT Sendgrid Docker Heroku

Frontend Developer

Digital Pages

Jul 2021 - Jan 2022 (6 months)

Developed a React administration interface and reusable components for a learning platform, and built a checkout frontend integrated with Pagar.me payments.

React Pagar.Me

Frontend Developer

Optimum Strategic Solutions

Jul 2020 - Jul 2021 (1 year)

Built a Vue.js dashboard with interactive Google Charts for legal case data and internal reporting.

Vue.Js Google Charts

Full-Stack Developer

Integrated Operations Center

Nov 2019 - Jul 2020 (8 months)

Built a Node.js traffic-camera streaming replacement, real-time vehicle tracking with Leaflet and OpenStreetMap, and a React and Node.js document workflow.

NodeJS React Leaflet OpenStreetMap