Looking for a job

André Pessoa

@andrpessoa

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Full Stack Developer who scaled Pixelmon Brasil’s e-commerce platform to 1.5M+ users and 200K+ monthly visits.

Brazil

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What I'm looking for

I’m seeking a Full Stack Developer role in a product-driven global team, where I can architect scalable distributed systems and deliver measurable performance improvements.

At Pixelmon Brasil, I architected a high-traffic e-commerce platform with Next.js and AdonisJS, scaling it to support 1.5M+ registered users and 200K+ monthly visits. I also contributed to APIs across MySQL, PostgreSQL, and Redis, improving data retrieval efficiency by ~40%.

At UP Vendas, I engineered Java 21 REST APIs for a direct sales platform serving 60K+ active consultants. I optimized PostgreSQL queries to reduce data fetch times from seconds to milliseconds and collaborated on lightweight Vanilla JavaScript interfaces that reduced infrastructure and server costs by ~30%.

At Empbank, I developed full-stack fintech applications with React.js and Node.js, optimized PostgreSQL queries to under one second, and integrated AWS SES and S3. I’m seeking a Full Stack Developer role on a product-driven global team, where I can architect scalable distributed systems and deliver measurable performance improvements.

Experience

Work history, roles, and key accomplishments

Full Stack Developer

UP Vendas

May 2025 - May 2026 (1 year)

Engineered high-performance REST APIs using Java 21 to manage complex operations for a direct sales platform serving 60K+ active consultants. Optimized SQL queries and database indexing in PostgreSQL, reducing data fetch times from seconds to milliseconds, and integrated backend APIs with web and mobile platforms processing 1,000+ monthly orders with zero data loss.

Java 21+REST APIs Vanilla.JS PostgreSQL SQL Database Indexing Mobile To Web Integration

Full Stack Developer

Pixelmon Brasil

Aug 2023 - May 2025 (1 year 9 months)

Architected a high-performance e-commerce platform using Next.js and AdonisJS, scaling to support 1.5M+ registered users and 200K+ monthly visits. Contributed to scalable APIs with LucidORM across MySQL, PostgreSQL, and Redis, improving data retrieval efficiency by ~40%, and integrated automated payment gateways (Stripe, Pagar.me, MercadoPago) processing 100% of transactions securely.

Next.js AdonisJs Lucid ORM MySQL PostgreSQL Redis Stripe Pagar.Me MercadoLibre RBAC Nginx Ubuntu

Full Stack Developer

Empbank

Apr 2022 - Jul 2023 (1 year 3 months)

Developed end-to-end full-stack applications using React.js, Node.js, and MantineUI, accelerating delivery of new UI features by ~30%. Optimized API integrations and PostgreSQL queries through Prisma ORM, reducing response times to <1 second, and integrated AWS SES and S3 for reliable email delivery and secure cloud storage.

React NodeJS Mantine UI Prisma ORM PostgreSQL AWS SES S3 Heroku