Hire the Best React.js Developers
in Indonesia

🚀 20+ delivered projects successfully. 🔥 Available for LONG-TERM projects. 👋 Hi, I'm Hanif Daffa, a Full Stack Developer. Many founders contact me to fix issues like inconsistent UIs, messy data flows, slow loading times, or difficult-to-develop backend APIs. I help stabilize the architecture, clean up the codebase, and ensure the project is fully operational, easy to maintain, and more flexible for future development.
 What I Can Help You Build:
 ✔ Building scalable SaaS MVP Platform. ✔ Building React.js & Next.js Architecture. ✔ Backend API & Database. ✔ Headless CMS Integration. ✔ Logistics & Real-time Dashboards. ✔ Payments & Subscriptions Integration. ✔ Refactoring & Stabilizing codebases for better performance. ✔ Fixing critical bugs and improving stability. ✔ Implementing authentication, roles, and permissions (multi-tenant systems).
 Core Technical Stack: ⚡ Frontend: React.js, Next.js, Tailwind CSS, TypeScript. 🛠️ Backend: Node.js, Express.js. 🧩 Headless CMS: Payload CMS, Strapi, Sanity. 💾 Databases: Supabase, PostgreSQL, MySQL. 🚀 Deployment: Vercel, AWS, DigitalOcean. 🤖 AI-Assisted Workflow: Codex, Copilot, Lovable. 🌟 Let's schedule a quick chat to discuss how we can get your project stable and ready to launch.

Are you looking for a highly experienced Ruby on Rails Developer to build robust, scalable, and high-performance web applications or enhance your existing systems? With 8+ years of dedicated experience in the Ruby on Rails ecosystem, I specialize in transforming complex ideas into elegant, efficient, and user-friendly digital products. My expertise lies in crafting clean, maintainable code that drives business value. I'm passionate about developing secure, test-driven applications, optimizing performance, and seamlessly integrating with third-party services. Whether you need a brand-new application from scratch, a major feature implementation, API development, or performance tuning for your existing RoR project, I bring a proactive, results-oriented approach. What I bring to your project: - Full-Stack RoR Development: From database design and backend logic (Ruby, Rails) to frontend integration (JavaScript frameworks, HTML, CSS/Sass). - Scalability & Performance Optimization: Identifying bottlenecks, refactoring code, and implementing caching strategies to ensure your application performs under heavy load. - API Development & Integration: Building secure and efficient RESTful APIs for mobile apps or external services, and integrating third-party APIs (payment gateways, CRMs, analytics). - Database Management: Proficient in PostgreSQL and MySQL, with strong skills in schema design, query optimization, and data migration. - Code Quality & Maintainability: Adhering to best practices, TDD/BDD (RSpec), and continuous integration to deliver reliable and easy-to-maintain codebases. - Problem-Solving & Debugging: A knack for quickly diagnosing and resolving complex technical challenges. My Toolkit Includes: Languages: Ruby, JavaScript (ES6+), HTML5, CSS3 Frameworks: Ruby on Rails, React.js / Vue.js / Stimulus.js (for frontend integration) Databases: PostgreSQL, MySQL, Redis Testing: RSpec, Capybara, E2E Tools & Platforms: Git, GitHub/GitLab, Heroku, AWS (basics), Docker, Sidekiq, Webpacker, Cursor AI, Claude AI and Antigravity I pride myself on clear communication, meeting deadlines, and delivering exceptional work that exceeds client expectations. Let's discuss your project and see how my Ruby on Rails expertise can help you achieve your goals. Ready to build something great together? Feel free to invite me to your job or schedule a call.

Hi, my name is Febrianto Arif, I am a Full stack Mobile & Web Developer, Senior React Native & Yii Developer. This is my current achievement : ✅ Upwork Top Rated Plus Developer (June 2022) ✅ Full Stack Web(SaaS/B2B/B2C/PWA/Ecommerce) Developer ✅ Familiar with AI Agent & OpenClaw(ClawBot) ✅ Full Stack Mobile Developer ✅ 20+ Products Created using React Native ✅ 6+ years of experience with React Native (Redux, React Navigation, GraphQL, Axios) ✅ 4+ years of experience with Yii-Framework v1 and 6+ years of experience with Yii-Framework v2. ✅ Familiar with Github & Gitlab ✅ Familiar with CI/CD platform like CodeMagic, Bitrise, Gitlab, CircleCI, and Netlify ✅ Love to write clean code This is my skill stacks : 💻 Javascript (ES6) 💻 Typescript 💻 ReactJS & NextJS 💻 React Native 💻 PHP (Yii Framework) 💻 Java 💻 MySQL 💻 Linux Ubuntu 💻 MacOS 💻 Claude 💻 OpenAI 💻 Cursor Best Regards, Feb Keywords: React Native Developer / Mobile App Developer / Cross-Platform Mobile App Developer / iOS App Developer / Android App Developer / Hybrid Mobile App Developer / Full Stack Developer / MERN Stack Developer / React Native Development / React Native App Developer / React Native App Development / React Native Expert / React Native CLI / React Native Expo / Mobile Application / Mobile App Development / Mobile App Developer / Build React Native App / React Native Bug Fixing / React Native Performance Optimization / React Native App Upgrade / React Native App Redesign / React Native UI Development / React Native API Integration / React Native Firebase Integration / React Native Authentication / React Native Push Notifications / React Native Payment Gateway Integration / React Native Real-Time App / React Native Database Integration / React Native Mobile App Development / AI Mobile App Developer / AI Mobile App / Full Stack Mobile App Developer / Mobile App Development Consultation / iOS Mobile App Developer / Android Mobile App Developer / Hybrid Mobile App / JavaScript Developer / TypeScript Developer / React Developer / Next.js Developer / Tailwind CSS Developer / HTML5 Developer / CSS3 Developer / UI/UX Developer / Node.js Developer / NestJS Developer / Express.js Developer / REST API Developer / Backend Developer / API Integration / MongoDB Developer / PostgreSQL Developer / MySQL Developer / Firebase Developer / Supabase Developer / AWS Developer / Docker Developer / CI/CD Developer / GitHub Developer / Cloud Deployment

Hi, I’m a Top Rated Full Stack Developer with 5+ years of hands-on experience helping businesses build reliable, scalable, and easy-to-maintain web applications. I enjoy working on projects where I can turn complex ideas into clean, practical, and production-ready solutions. Whether it’s building a dashboard, developing a custom web app, integrating APIs, improving an existing system, or creating internal tools, I always focus on writing clean code and delivering work that truly helps the business. I work across both frontend and backend development, so I can support your project from the user interface all the way to the database and server-side logic. 🚀 Frontend Development JavaScript, TypeScript, React.js, Next.js, Vue.js, Quasar, Alpine.js, HTML5, CSS, SASS, Bootstrap, and Tailwind CSS. ⚙️ Backend Development Node.js, Express.js, PHP, Laravel, REST APIs, API integration, authentication, and backend architecture. 🤖 AI-Assisted Development I use AI tools to speed up development, improve debugging, refactor code, generate ideas, write documentation, and increase overall productivity while still reviewing and validating the final code carefully. 🗄️ Databases MySQL, PostgreSQL, MongoDB, database design, optimization, and scalable data handling. 🧩 Low-Code & Internal Tools Retool development, admin dashboards, workflow automation, business tools, and no-code/low-code solutions. 🔌 Integrations Stripe, Midtrans, CryptoCloud, Leaflet.js maps, third-party APIs, payment gateways, and custom API integrations. 📱 Mobile & Responsive Apps Cordova.js, Quasar mobile apps, responsive websites, and mobile-friendly interfaces. 🛠️ Tools & Collaboration Git, GitHub, GitLab, Bitbucket, Jira, Trello, Slack, Figma, SonarQube, Netlify, Heroku, Laragon, XAMPP, PgAdmin, and FileZilla. What clients usually appreciate about working with me is that I don’t just write code. I try to understand the real problem behind the task, communicate clearly, give practical suggestions when needed, and build solutions that are stable, efficient, and easy to maintain in the long run. I’m comfortable working with remote teams, existing codebases, fast-moving projects, and clients who need someone reliable to handle both technical details and product requirements. If you’re looking for a Full Stack Developer, Frontend Developer, Backend Developer, React Developer, Vue Developer, Laravel Developer, Node.js Developer, Retool Developer, or someone who can help with API integration, AI-assisted development, database work, dashboards, internal tools, or custom web applications, I’d be happy to help bring your project to life.

✅ 𝗔𝗜 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗩𝗶𝗯𝗲 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 I help businesses automate their operations with AI and ship production-ready products end-to-end. Whether it's an N8N workflow that runs your business on autopilot, or a full-stack SaaS built with clean architecture — I deliver both. 🤖 𝐀𝐈 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 (𝐍𝟖𝐍): Voice AI calling agents — auto-calls new registrants and handles onboarding conversations SEO blog automation pipelines — research, write, format & publish on autopilot (5 businesses) RAG-based support agents with live web scraping to keep knowledge bases fresh Full employee onboarding — access provisioning, contracts, welcome docs, all automated Agentic search integration inside SaaS platforms 🛠 𝐕𝐢𝐛𝐞 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐒𝐭𝐚𝐜𝐤: 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React, Next.js, React Native 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, TypeScript, Python (FastAPI) 𝐃𝐁: PostgreSQL, Redis, MongoDB 𝐂𝐥𝐨𝐮𝐝: AWS (EC2, RDS, S3, CloudFront, SES), Docker, GitHub Actions 𝐀𝐈: GPT-4o, Claude, RAG (Weaviate), LangChain, Pinecone 𝐏𝐚𝐲𝐦𝐞𝐧𝐭𝐬: Stripe ✌️ 𝐒𝐞𝐥𝐞𝐜𝐭𝐞𝐝 𝐖𝐨𝐫𝐤: 𝐕𝐨𝐢𝐜𝐞 𝐎𝐧𝐛𝐨𝐚𝐫𝐝𝐢𝐧𝐠 𝐀𝐠𝐞𝐧𝐭: Outbound AI calling agent — zero human involvement 𝐏𝐚𝐤𝐢𝐬𝐭𝐚𝐧 𝐋𝐚𝐰 𝐁𝐨𝐭: Legal RAG across 100+ books with source-backed answers 𝐀𝐈-𝐓𝐮𝐛𝐞: AI video generation & community platform — +30% user engagement 𝐏𝐞𝐫𝐦í𝐚: Permit/compliance engine with rule bundles & audit logs 𝐌𝐞𝐝𝐍𝐨𝐭𝐞𝐬: Clinical documentation platform using HIPAA-aligned patterns 😍 𝐇𝐨𝐰 𝐈 𝐖𝐨𝐫𝐤: Scope → milestones → weekly demos and written updates Readable code, tests, and automated deploys (GitHub Actions) Production checklists: security, observability, backups, performance budgets Async-first collaboration; overlap with US/EU hours (based in PK) 😊 𝐄𝐧𝐠𝐚𝐠𝐞𝐦𝐞𝐧𝐭 𝐎𝐩𝐭𝐢𝐨𝐧𝐬: Fixed-scope sprints or hourly Prefer a small paid pilot (1–2 weeks) to earn trust, then scale ❤️ Let's automate what slows you down and build what scales you up. Send a message — I'll share a quick plan and timeline for your first milestone.

Hi there, I'm Full stack developer with frontend specialist with over 5 years of experience delivering production web apps in both startup and enterprise settings. I work quickly, take ownership of the entire process, and write reliable code. I focus primarily on the frontend, using React, Next.js, TypeScript, and Tailwind. However, I can handle the full stack when needed, including API, database, and deployment. There's no need to coordinate two developers when one can manage everything from start to finish. Recent projects include an AI SaaS platform with over 500 active users and frontend implementation for a major financial institution's internal system. I am comfortable working at various scales. 💻 My stack: React • Next.js • TypeScript • JavaScript • Tailwind CSS • TanStack Query • Node.js • Express.js • Supabase 🔧 What I build: Modern web apps and SaaS products that grow with your business AI-integrated products, from schema design to final interface Landing pages and company sites designed to convert, not just look good Pixel-perfect UI based on design mockups, responsive everywhere Clean API integrations and bug fixes that reduce team downtime 🤖 AI features I build: LLM integrations (Claude, OpenAI, DeepSeek), including chatbots, assistants, and content generators AI-powered SaaS developed from scratch, featuring multi-model architectures RAG systems that allow your app to answer questions using your own data Smart form flows and AI-assisted onboarding experiences Prompt engineering and optimization to maximize model performance ✨ How I work: I prioritize clean and maintainable code, not just code that works temporarily. I aim to understand the reasons behind a project, not just the tasks. 📩 Want to discuss your project? I offer a free, no-pressure consultation to talk about your goals and whether I'm the right fit to help you achieve them.