Shamir Mateo Chaparro Suarez

Built and maintained production web applications using React/TypeScript and Node.js/Nest.js, owning features end to end across data model, APIs, and UI. Developed continuously updating, data-dense dashboards with virtualised data grids and live charts, paying close attention to how the interface behaves when data arrives late, partially, or becomes stale. Designed client state architecture separating server state and UI state using React Query and Redux Toolkit to reduce stale-data and race-condition bugs. Optimized database performance by analyzing query plans, redesigning indexes, and restructuring aggregation pipelines to move heavy queries from seconds to sub-second times. Improved front-end performance by profiling re-render cascades, adding virtualization, and applying code-splitting and asset optimizations. Maintained automated tests and CI pipelines (GitHub Actions) and performed code reviews focused on correctness, componentization, and maintainability; used Claude Code and Cu

Collaborated with a cross-functional team to develop and maintain several high-traffic marketplace websites, resulting in a 30% increase in user engagement. Implemented RESTful APIs in Node.js and Laravel for efficient data retrieval, enhancing system performance and scalability. Built dynamic user interfaces with React/Next.js and Tailwind CSS using Redux; created a Slack bot integrating Harvest and Asana with Node.js/TypeScript/Express.js and BotKit. Conducted code reviews, mentored junior developers, and automated deployment with Jenkins CI/CD.

Collaborated with a cross-functional team to develop and maintain high-traffic marketplace websites, resulting in a 30% increase in user engagement. Implemented RESTful APIs in Node.js and Laravel to improve data retrieval, performance, and scalability. Built dynamic user interfaces with React/Next.js, Tailwind CSS, and Redux; utilized Laravel Livewire and Alpine.js with Tailwind for rich UI experiences. Developed a Slack bot integrating Harvest and Asana using Node.js, TypeScript, Express.js, and BotKit. Conducted code reviews, mentored junior engineers, and established CI/CD pipelines with Jenkins to automate deployments.