Hire the Best React.js Developers
in Denmark

I’m a frontend developer with 5+ years of experience building fast, scalable, and polished web applications using JavaScript and TypeScript. I’ve worked with both creative studios and enterprise SaaS teams, so I’m comfortable building animation-heavy marketing sites as well as complex, maintainable product systems. 💡 What I can help you with High-quality UI & animations I create smooth, production-ready animations using GSAP and Pixi.js. It’s not just about visuals I focus on performance so everything feels fast and responsive. Fast & scalable frontends I build applications in React and Svelte that load quickly, stay maintainable, and scale as your product grows. Frontend architecture I’ve designed monorepo setups, built shared component libraries, and worked on systems used across multiple teams. End-to-end features If a feature needs backend support, I can handle the Node.js/API side as well. 🧩 Selected work - Auditbull - SaaS audit platform with survey builder, role-based access, and data visualization - Next Level Value - Enterprise CPQ tools and multi-team frontend architecture - Set Snail - Animation-focused marketing sites (Svelte + GSAP + Pixi.js) 🛠️ Tech stack Frontend: React, Svelte, Next.js, TypeScript, Tailwind, GSAP, Pixi.js Backend: Node.js, Express, NestJS, REST APIs Tools: CI/CD, GitHub Actions, SQL 🤝 How I work - I take time to understand the problem before jumping into code - I focus on clean, maintainable, and performant solutions - I communicate clearly and keep things moving - I take ownership from idea to production If you’re looking for someone who can build fast, think critically, and deliver polished results let’s talk.

‎💻 1𝟎𝟎+ 𝐏𝐑𝐎𝐉𝐄𝐂𝐓𝐒‎ ‎ ‎ ‎ ‎ ‎🎖️ 4 𝐘𝐄𝐀𝐑𝐒 𝐎𝐅 𝐄𝐗𝐏𝐄𝐑𝐈𝐄𝐍𝐂𝐄‎‎ ‎ ‎ ‎ ‎ ‎🚀 𝐃𝐄𝐋𝐈𝐕𝐄𝐑𝐄𝐃 𝟑𝟎+ 𝐌𝐕𝐏𝐒 𝐀𝐍𝐃 𝐏𝐑𝐎𝐃𝐔𝐂𝐓𝐈𝐎𝐍 𝐀𝐏𝐏𝐒 𝐀𝐂𝐑𝐎𝐒𝐒 𝐈𝐍𝐃𝐔𝐒𝐓𝐑𝐈𝐄𝐒 Need a reliable developer to build a scalable 𝐅𝐮𝐥𝐥 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧, polish your 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝, launch a 𝐅𝐀𝐒𝐓 𝐌𝐕𝐏 or deliver a custom 𝐑𝐄𝐀𝐂𝐓 / 𝐍𝐄𝐗𝐓.𝐉𝐒 𝐀𝐏𝐏 - fast and without surprises? My name is Sonaly, a 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐞 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭-𝐜𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 𝐑𝐞𝐚𝐜𝐭 & 𝐍𝐞𝐱𝐭.𝐣𝐬 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with 4 years of experience (M.Sc. in Software Engineering). I build pixel-perfect Figma → Next.js conversions, robust full-stack web applications, and custom frontend solutions, delivering maintainable, high-performance production code with strong attention to detail and dependable post-launch support. 🚀 𝐖𝐇𝐀𝐓 𝐈 𝐂𝐀𝐍 𝐁𝐔𝐈𝐋𝐃 𝐅𝐎𝐑 𝐘𝐎𝐔 🚀 𝐑𝐄𝐀𝐂𝐓 & 𝐍𝐄𝐗𝐓.𝐉𝐒 𝐖𝐄𝐁 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 Build production-ready React & Next.js apps with scalable architecture, clean code, secure auth, and performance-optimized rendering. 🎨 𝐅𝐢𝐠𝐦𝐚 → 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐍𝐞𝐱𝐭.𝐣𝐬 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐢𝐨𝐧𝐬 Pixel-perfect implementations from design files with responsive breakpoints, consistent spacing & typography tokens, and accessible components that match your design system. 🎯 𝐅𝐮𝐥𝐥 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 (Frontend + Backend) Complete feature delivery: frontend UI, backend endpoints (Node/Express + Prisma), database modeling (Postgres/MongoDB), and client-server integration - shipped as tested, documented increments. 🔗 𝐃𝐚𝐭𝐚, 𝐀𝐏𝐈𝐬 𝐚𝐧𝐝 3𝐫𝐝-𝐏𝐚𝐫𝐭𝐲 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 Integrations with REST/GraphQL endpoints, payment processors (Stripe), analytics, CRMs, and AI APIs (OpenAI/ChatGPT). I handle webhooks, secure token flows, and reliable sync between front and back ends. 🔐 𝐀𝐮𝐭𝐡 & 𝐏𝐚𝐲𝐦𝐞𝐧𝐭 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰𝐬 Implement secure sign-in flows (NextAuth, Clerk, or custom JWT), subscription billing, and checkout flows with smooth UX and strong security practices. 🛡️ 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 & 𝐁𝐞𝐬𝐭 𝐏𝐫𝐚𝐜𝐭𝐢𝐜𝐞𝐬 Input validation, secure storage of secrets, rate-limit awareness, and defensive coding to reduce risk and protect user data. 🚀 𝐃𝐞𝐩𝐥𝐨𝐲 & 𝐎𝐩𝐬 𝐒𝐚𝐟𝐞𝐠𝐮𝐚𝐫𝐝𝐬 Production-ready CI/CD with Vercel/Netlify + GitHub Actions, environment strategy, and rollout checks so releases are repeatable and low-risk. 🔄 𝐎𝐧𝐠𝐨𝐢𝐧𝐠 𝐌𝐚𝐢𝐧𝐭𝐞𝐧𝐚𝐧𝐜𝐞 & 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 Post-launch support packages, timely bug fixes, dependency updates, and optional SLA-style response windows so your product stays healthy and up-to-date. 💡 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐢𝐧𝐠 & 𝐍𝐞𝐱𝐭-𝐒𝐭𝐞𝐩 𝐑𝐨𝐚𝐝𝐦𝐚𝐩𝐬 Not sure what to build first? I provide discovery sessions, prioritization, and technical roadmaps to maximize impact and minimize wasted effort. ________________________________________ 🛠️ 𝐓𝐎𝐎𝐋𝐒 & 𝐓𝐄𝐂𝐇𝐍𝐎𝐋𝐎𝐆𝐘 𝐂𝐎𝐑𝐄 𝐅𝐑𝐎𝐍𝐓𝐄𝐍𝐃 & 𝐅𝐑𝐀𝐌𝐄𝐖𝐎𝐑𝐊𝐒 • React • Next.js (App Router & Pages) •Redux • Component-driven architecture (reusable libraries) 𝐒𝐓𝐘𝐋𝐈𝐍𝐆 & 𝐔𝐈 𝐋𝐈𝐁𝐑𝐀𝐑𝐈𝐄𝐒 • Tailwind CSS, CSS3, Responsive design • Shadcn-ui, radix-ui, styled-components • Figma → pixel-perfect Next.js conversions 𝐋𝐀𝐍𝐆𝐔𝐀𝐆𝐄𝐒 & 𝐌𝐀𝐑𝐊𝐔𝐏 • TypeScript (projects as needed) & modern JavaScript (ES6+) • HTML5, SCSS 𝐒𝐓𝐀𝐓𝐄 & 𝐃𝐀𝐓𝐀 𝐌𝐀𝐍𝐀𝐆𝐄𝐌𝐄𝐍𝐓 • Redux Toolkit / RTK Query, Context API, custom hooks • Client/server rendering patterns (SSR, SSG, ISR, RSC) 𝐁𝐀𝐂𝐊𝐄𝐍𝐃 & 𝐅𝐔𝐋𝐋-𝐒𝐓𝐀𝐂𝐊 • Node.js, Express • Prisma ORM • Databases: PostgreSQL, MongoDB • REST API design, third-party integrations 𝐀𝐔𝐓𝐇 & 𝐏𝐀𝐘𝐌𝐄𝐍𝐓𝐒 • NextAuth, custom auth flows, JWT strategies • Stripe (payments & webhooks), payment gateway integration 𝐃𝐄𝐕𝐎𝐏𝐒 & 𝐃𝐄𝐏𝐋𝐎𝐘𝐌𝐄𝐍𝐓 • Vercel, Netlify, CI/CD basics, Git workflows (GitHub/GitLab/Bitbucket) • Deployment-ready pipelines & environment management 𝐐𝐔𝐀𝐋𝐈𝐓𝐘, 𝐏𝐄𝐑𝐅𝐎𝐑𝐌𝐀𝐍𝐂𝐄 & 𝐖𝐎𝐑𝐊𝐅𝐋𝐎𝐖 • Performance optimization, code refactor, accessibility (a11y) best practices • Testing & bug triage, documentation, modular architecture 𝐃𝐄𝐒𝐈𝐆𝐍 & 𝐏𝐑𝐎𝐉𝐄𝐂𝐓 𝐓𝐎𝐎𝐋𝐒 • Figma, PSD handoffs • Postman, Notion, Trello, Jira ________________________________________ 𝐖𝐇𝐘 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄 ✅Focused & reliable ✅Proven fundamentals ✅Value-first delivery ✅Pixel-perfect & scalable ✅Clear collaboration ✅Aftercare If you want to discuss your project in detail, let’s schedule a call or click the 𝐂𝐎𝐍𝐓𝐀𝐂𝐓 button - I’m happy to spend time understanding your goals (even if we don’t start a project right away). Let’s build something great together. ✨ React.js Developer, Next.js expert, Frontend performance optimization TypeScript, Tailwind CSS, Figma to Next.js, Full-Stack, Node.js, Prisma, PostgreSQL, MongoDB, API Integration, Bug Fix, SaaS, MVP, Frontend Developer, Full Stack Developer.

I'm a senior software developer with 5+ years of experience, offering premium software services to my clients. I am hyper-responsive, punctual, and available all week during regular business hours. My unique combination of skills facilitates me in suggesting the best solutions for your project that are easy to scale and inexpensive to maintain. My broad frontend expertise blended with cloud computing experience helps me get a comprehensive picture of your project: starting from prototyping your idea to transforming it into a sleek website your users will love. You have the idea; I have the skills to make it happen! Let's get in touch and talk more about it!