Marlon souza

I’m a Full Stack Engineer with 5+ years of experience building scalable SaaS platforms, API-driven systems, and complex business workflows using JavaScript/TypeScript, Node.js, React, and PostgreSQL. At PartsBadger, I helped redesign the Get Quote experience, enabling customers to upload CAD files and receive real-time CNC part pricing through advanced filtering and a live quote sidebar—supporting ~100 daily users. I also built ERP web and tablet modules for shop operators, cutting workflow errors by 98% through better production tracking and dashboards.

I’m hands-on about reliability and performance: I architected and scaled React-based ERP/customer portals, cutting load times by ~80% for complex quoting and inventory workflows, and stabilized a Node.js + Puppeteer automation pipeline by reducing failures by 99%. I bring strong system design fundamentals (microservices, event-driven architecture, REST APIs), AWS-based cloud architecture, and automated testing (Cypress, Jest, Vitest, Pytest) to production; I’ve even integrated AI-assisted development using OpenAI APIs and accelerated UI delivery by 40% while maintaining architecture and code quality across multiple releases.