Jonathan S.
Javascript-Typescript Apps | React, Next.js | MVP, SaaS | Framer & AI
Top Rated Web Developer with 100% Job Success Score, specializing in JavaScript, TypeScript, React, Next.js, Framer, and AI-powered web solutions. I build fast, responsive, and conversion-focused websites and web applications that are designed to deliver real business results. From landing pages and business websites to custom React applications, API integrations, and AI automations, I can take your project from idea to production deployment. Key Expertise & Technologies 🔹Core Languages: JavaScript (ES6+), TypeScript, HTML5, CSS3 🔹Front-End Libraries & Frameworks: Vanilla.js, jQuery, React.js / Next.js 🔹Styling & UI/UX: Figma, Adobe Photoshop, Tailwind CSS (Responsive Design) 🔹Version Control: Git/GitHub, Azure 🔹Build Tools: Webpack, Vite 🔹Backend: .NET Core, Node.js, Express.js, MSSQL, MongoDB, Supabase 🔹Web builders: Framer, Squarespace, Wordpress, Elementor, Webflow, Wix Studio, Replit, Lovable, Base44 🔹AI Automations: Zapier, GoHighLevel, n8n 🔹Other Experience: API Integration (REST), Google App Script, Looker Studio What I Bring to Your Project ✔ Front-End Specialization: Deep expertise in JavaScript / Typescript and modern frameworks to build interactive and high-performance user interfaces. ✔ Quality & Maintainability: I am committed to writing clean, well-documented, and scalable code that simplifies future updates and development. ✔ Seamless User Experience: A strong focus on responsiveness, performance optimization, and intuitive design to ensure your application delights users. ✔ Full Lifecycle Support: From initial concept and wireframing to deployment and post-launch maintenance, I handle the full front-end/backend development cycle. Whether you're building a simple landing page or a complex web application with API integration and managing data, I'm here to bring your ideas to life. I work closely with clients to ensure that every project meets their expectations and it is delivered on time. Let's collaborate and build something great together.
Earnings and projects
Last 6 months ÷ 6
Read daily since Oct 28, under 30 days
Billed in all: $1,372$1.4k
$62 in the last 6 months
Across 21 contracts
Earnings, last 30 days
Tracked from Oct 28, 2026.
Skill rankings: Top 24% in SQL
Ranked by MRR among everyone on Upwork with the skill.
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- #637Framer1,796 freelancers · 🇵🇭 #14Top 35%🇵🇭#14 of 29
- #764.NET Core3,067 freelancers · 🇵🇭 #12Top 25%🇵🇭#12 of 48
- #1,054Sales Funnel2,700 freelancers · 🇵🇭 #123Top 39%🇵🇭#123 of 299
- #1,293Wix4,075 freelancers · 🇵🇭 #91Top 32%🇵🇭#91 of 263
- #1,728Tailwind CSS6,979 freelancers · 🇵🇭 #51Top 25%🇵🇭#51 of 160
- #1,906Webflow5,550 freelancers · 🇵🇭 #41Top 34%🇵🇭#41 of 116
- #2,416Front-End Development8,892 freelancers · 🇵🇭 #77Top 27%🇵🇭#77 of 231