Hello, I'm Vinícius

As the co-founder and lead developer of Path Trader, an independent self-funded platform, I designed and built a TypeScript monorepo for traders to journal trades, review performance, manage risk, and run a partner program. Developed primarily in my free time, I owned both the Next.js client applications and the NestJS API—from data modeling with Prisma through payments, file storage, realtime notifications, and production-oriented tooling.

• Architected a pnpm and Turborepo monorepo with a shared Prisma schema, internal UI packages (Radix-style primitives, Recharts), and multiple Next.js surfaces (main app, marketing site, admin, landing).

• Delivered the trading journal (accounts, trades, tags, strategies, emotions) plus imports from common broker and export formats; built analytics and path-rank style performance views.

• Implemented Lexical-based journal and documents with folders and document types; integrated Asaas billing and a partner program with an admin app for approvals.

• Shipped an AI assistant (OpenAI) with usage-aware behavior; authentication with NextAuth.js on Next apps and JWT plus Passport on the API.

• Connected Pusher notifications, AWS SES email, and S3 presigned uploads; NestJS backend with validation, throttling, schedules, and BullMQ on Redis.

• Delivered a PWA with Serwist; observability with Sentry across Next.js and Node.

• Implemented Jest, React Testing Library, and Playwright quality gates; GitHub Actions CI/CD with path-filtered deploys for API, web, site, admin, and landing.

• Operational automation: scheduled database backups to S3 and a daily develop → main sync workflow with pull requests and checks before merge.

• Leveraged AI-driven development workflows using tools like Cursor, Claude, and Antigravity to rapidly prototype, iterate, and accelerate the project's time-to-market.

As a frontend engineer at Bird, I collaborate closely with designers to deliver highly accessible interfaces while actively expanding my full-stack impact through backend development in Go. On the sales development team, I drive end-to-end feature delivery for lead, opportunity, and account management.

• Developed and maintained Go-based API endpoints, handling core business logic for the sales development team and improving system stability.

• Architected a custom analytics engine and cross-app dashboard using Malloy, SolidJS, and Vega, empowering users to dynamically compose charts based on selected metrics.

• Led the frontend redesign of the marketing cloud, establishing a scalable component system with Radix UI and Tailwind CSS.

• Implemented complex data visualization UIs across the product suite utilizing TanStack Table, Recharts, and Chart.js.

• Championed quality assurance by establishing rigorous automated testing workflows with Vitest, React Testing Library, and Playwright.

As a senior software engineer at MULTTI, I took on a technical leadership role, guiding the engineering team, streamlining workflows, and contributing hands-on across the stack (React/React Native frontends and PHP backends).

• Mentored junior engineers and optimized agile development workflows to ensure reliable feature delivery.

• Architected and built a highly interactive real-time chat system using React, PusherJS, WebSockets, and virtualized lists for performance at scale.

• Led the end-to-end development of a delivery-tracking React Native mobile app featuring live maps, push notifications, and custom UI.

• Developed comprehensive full-stack solutions, including a lead management system (React, MUI) and a financial market streaming platform.

• Modernized the CI/CD pipeline and infrastructure by introducing Docker, AWS, and Bitbucket Pipelines, reducing deployment friction.

• Managed the full lifecycle of mobile applications, including automated deployments to Google Play and the App Store.