Long D.

I'm Expert-Vetted (top 1% of Upwork). I have 5/5-star ratings across all my projects. I'm a professional guru with over 15 years of experience in web and mobile development. I have been a front-end developer for most of my career, so I know how to build great user interfaces. I have helped many startups successfully deliver their products to market, making them profitable. Additionally, I’ve led teams in building large-scale applications for several billion-dollar companies. I'm interested in long-term relationships and often join startups in their early stages. My focus is on building scalable and maintainable codebases. Here’s some startups that I have worked with from the beginning, which got funded or acquired: - LearnWise AI: Unified AI platform for campus support, tutoring, and feedback. - unSurvey: AI-moderated customer interviews and analysis for actionable customer insights. - truckoo: Digital marketplace for buying and selling used transporters, trucks, and trailers with international traders. - TaoMarketCap: Delivers real-time insights for Validators, Traders, and Miners across the Bittensor network. - Koinly: Calculates your cryptocurrency taxes by connecting to 800+ exchanges and wallets and importing your full transaction history. - Corrily: Monetization growth platform for subscription companies to design, test, deploy, and analyze pricing, paywalls, and revenue strategies. And many others. In my free time, I enjoy reading about science, physics, cosmology, and politics. I love traveling the world and typically do so 2-3 times per year.