Renan Martins

I am a Senior Frontend Engineer with over 10 years of experience building high-scale web applications across fintech, travel tech, and food e-commerce. I specialize in React, Next.js, TypeScript, Tailwind CSS and delivering performant, accessible user experiences for high-traffic products.

At Planetary I lead frontend development for large-scale sites and apps, architect CMS-driven multilingual solutions, and mentor junior developers through code reviews and best practices. I have driven measurable outcomes such as major page load and Lighthouse improvements, reduced infrastructure costs, and increased conversions.

My technical work includes SSR/ISR implementations, Sanity CMS migrations, geo-redirects and localization, performance optimizations, and building scalable component systems with Storybook. I am comfortable working with REST APIs, Node.js tooling, Redis caching, and payment integrations.

I bring a proactive, team-oriented approach with strong communication, an entrepreneurial mindset, and a focus on clean code, accessibility, and measurable product impact. I seek opportunities to solve complex frontend challenges and help teams ship reliable, high-performing experiences.