Open to opportunities

André Ginja

@andrginja

Message

Senior Full-Stack Engineer specializing in scalable React/Next.js and Web3 integrations.

Portugal

Message

What I'm looking for

I seek roles where I can architect scalable frontend and Web3 solutions, drive measurable product impact, mentor teams, and improve developer productivity in outcomes-focused, innovative companies.

I am a Senior Full-Stack Engineer with 5+ years building high-performance, scalable applications across eCommerce, DeFi, NFT, and blockchain ecosystems.

At Rarible I led multichain architecture and integrated 14+ blockchains into a white-label marketplace used by major brands and over 1 million monthly users, while improving build times and automation.

At Cazoo I drove a 600% increase in homepage car-selling conversions and improved Web Vitals by 32% through frontend reengineering and enhanced observability and SEO automation.

I found and run a digital brand with 20M+ interactions and build AI-driven content tools; I focus on practical, measurable impact, developer productivity, and secure, production-grade Web3 integrations.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Rarible

Jul 2023 - Present (2 years 2 months)

Spearheaded multichain architecture and integrations for a next-generation NFT marketplace, integrating 14+ blockchains and supporting major brands while reducing build time by 35% and cutting marketplace creation from 1 week to 2 days.

Next.js React Web3.js Jenkins Performance Optimization Observability

Software Engineer

Cazoo

Jan 2022 - Jun 2023 (1 year 5 months)

Rebuilt core frontend flows to increase homepage car-selling conversions by 600% and improved Web Vitals by 32% through fetch logic optimization while leading observability and SEO automation efforts.

React Next.js TypeScript AWS Serverless Jest Datadog Web Performance

Associate Software Engineer

OutSystems

Aug 2021 - Dec 2021 (4 months)

Contributed to platform engineering tasks as part of the OutSystems team, developing enterprise-grade low-code features and supporting product delivery timelines.

JavaScript Web Development Low Code Testing CI CD Agile