Cafer Kursad D.

Building an app is easy now. Making one that holds up — handles real users, real money, real edge cases — is not. That second part is what I do. I've used AI to write code since the Copilot beta — long before it was normal. So I move fast, but I always know what my code does and why. That's the whole difference: fast doesn't have to mean fragile. Since 2019, I've shipped dozens of projects across web and mobile. Most problems aren't really new — they're a version of something I've solved before. I work full-stack — React, Next.js, TypeScript, Node.js, Supabase, PostgreSQL on the web, and React Native with Expo on mobile. Web or mobile, I'm solid on both. I think like a product person, not just a coder. After building dozens of web and mobile apps — the ones that worked and the ones that didn't — I pay real attention to the user experience, and I'll push back if something doesn't make sense for the people using it. If you want input on the product side, I'm happy to give it. I also work well with teams. I led a team of five before going freelance, and I'm used to fitting into a daily workflow — Slack or Teams, Jira, running sprints. Whether you need someone to just take a task and run, or someone who plugs into your process, I can do either. Some of the things I've built: - E-commerce — multiple stores, both on fully custom backends (Next.js, Stripe, PayPal) and headless with Shopify Storefront API, Sanity, and Next.js. I know the SEO side well, and I've handled migrations — moving older stores onto a faster, modern setup without breaking what already works. - A football-focused sports platform — large datasets syncing constantly from multiple sports APIs, high request volume across many endpoints, RLS policies for data access, and AI content-generation workflows - Canva-style design editors — a full editor on web with Konva.js, and the same kind of thing on mobile with React Native Skia and Reanimated (an area I'm genuinely strong in) - Programmatic video with Remotion — for the sports platform I built a system that auto-generates short-form videos end to end: script generation, TTS, and image generation - Fintech — helped modernize a legacy fintech app, moving the old stack to a current React Native and Expo build - Dating apps — two built with Expo and bare React Native , with complex animations, maps, and real-time features - B2B mobile apps for corporate clients — built from scratch (under NDA, so light on the details) - A large management platform for a hospital chain On top of these, I've built plenty of the everyday stuff too — admin panels, SaaS dashboards, landing pages, internal tools. I've done a lot of it, so it's fast, solid work for me. I'm Top Rated with 100% Job Success. I work independently, communicate clearly, and treat your project like my own. Whether it's something new or something half-built that stalled — tell me what you need, and I'll tell you straight if I can do it. 🧠 Tech Stack Core: TypeScript / JavaScript (ES6+), React, Next.js (App Router, SSR), React Native, Expo, Supabase, Firebase, PostgreSQL, Node.js (Express), Prisma ORM, Web Canvas API UI / State / Forms: Tailwind CSS, Framer Motion, Reanimated, React Native Skia, Konva.js, Remotion, Three.js, Styled Components, React Query, Redux, Zustand, React Hook Form Integrations: Stripe, PayPal, RevenueCat, OpenAI, Shopify Storefront API, Sanity, FFmpeg, REST / GraphQL APIs, Edge Functions, Webhooks, WebSockets, Google Analytics, Facebook Pixel DevOps: Vercel, AWS, Google Cloud, Docker, GitHub Actions