Paulo R.

I help companies build scalable, maintainable front-end applications with Vue.js and modern JavaScript. I’m a senior software engineer with 20+ years in web development, including experience leading product development, shaping technical decisions, and delivering business-critical systems for fintech, healthcare, and other complex domains. My focus is front-end development with Vue.js for products that need more than just feature delivery. I work on interfaces that must stay reliable as the product grows: clean architecture, maintainable components, solid API integration, and a user experience that works well in real-world conditions. What I can help you with: - Vue.js front-end development for SaaS and web applications - Building and improving complex UI for product teams - API-driven front-end architecture - Refactoring and structuring existing front-end codebases - Component design and maintainable UI systems - Testing strategy with Jest, Cypress, and end-to-end coverage - Performance, reliability, and long-term maintainability My background includes building and leading solutions in crypto, healthcare, and fintech environments, where scalability, clarity, and technical ownership matter. At Mercado Bitcoin, I joined at an early stage, contributed to foundational technical decisions, and later led contractors across critical application areas. Core stack: Vue.js, JavaScript, Node.js, REST API, GraphQL, Cypress, Jest, component-based architecture, end-to-end testing Why clients work with me: - I understand product and engineering, not just implementation - I can work independently and take ownership - I care about maintainability, not only speed - I communicate clearly and work well with existing teams - I’m comfortable with complex systems and business-critical applications If you need a senior Vue.js/front-end engineer to improve an existing product or help build a solid front-end foundation, I’d be glad to discuss your project.