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@cristianvsirbu
I am a frontend developer specializing in React, Next.js and TypeScript, building performant responsive web apps.
I am a Frontend Developer with 4+ years of experience building responsive, high-performance web applications using React, Next.js, TypeScript and Tailwind CSS. I focus on polished UI, smooth animations, and performant real-time features that keep users engaged.
At my current role I implemented real-time chat with Supabase, replaced Axios with Fetch for performance gains, and built complex interfaces like a Supervisor Inbox and Flow Generator with centralized state (Zustand), advanced filtering, animations and scalable component structures. I added features such as undo/redo, drag-and-drop, multi-select, MDX live preview, and light/dark themes while maintaining version control and CI/CD practices.
I also deliver client-facing projects and portfolio apps—ranging from 3D integrations to secure auth systems—and hold certifications in JavaScript and responsive web design; I enjoy debugging, collaborating with designers, and continuously improving developer experience.
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Work history, roles, and key accomplishments
getitAI
Aug 2023 - Present (2 years 3 months)
Built and optimized the web interface for an Autonomous AI Sales Agents app, implementing Supabase real-time chat and performance improvements (replaced Axios, lazy-loaded thumbnails) to reduce re-renders. Developed a scalable Supervisor Inbox (25+ files, 15+ components) and Flow Generator (15+ files) with advanced filtering, undo/redo, drag-and-drop, and live previews.
Self-Employed
Mar 2021 - Aug 2023 (2 years 5 months)
Delivered frontend solutions for small businesses and startups, building React SPAs and responsive UIs and improving a WordPress site's page speed by 30%. Refactored legacy jQuery code and implemented REST API integrations while collaborating with designers and Firebase/Node.js backends to improve user interactions.
Degrees, certifications, and relevant coursework
Master's Degree, Medical and Pharmaceutical Sciences
Completed a Master's degree at Nicolae Testemițanu State University of Medicine and Pharmacy with advanced studies in medical and pharmaceutical sciences.
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