Hire the Best Firebase Developers
in Japan
Osaka, Japan
Full-Stack Developer | Nuxt.js, Next.js, Laravel, Django, FastAPI | AWS, Firebase | No-code I’m a seasoned Full-Stack Developer with expertise in building scalable web applications and backend systems using JavaScript, TypeScript, Python, PHP, and modern frameworks like React, Node.js, Laravel, Django, and FastAPI. What I deliver: • Responsive frontends using React, Next.js, Vue, and Nuxt • Scalable backends with Node.js (Express), Django, FastAPI, Flask, Laravel, and PHP • API-first architecture with REST and GraphQL • Cloud-based systems with AWS, Firebase, and Supabase • DevOps & deployment with Docker, GitHub Actions, CI/CD • Database management with PostgreSQL, MySQL, MongoDB • Automation tools, batch scripting, and backend jobs Tech Stack: JavaScript, TypeScript, Python, PHP, C#, Java, React, Next.js, Node.js, Vue, Nuxt, Express, Laravel Django, FastAPI, Flask, Docker, AWS, Firebase, Supabase, PostgreSQL, MongoDB, Bash, REST, GraphQL, Bubble.io, Softr, Airtable, Tally, Wix, Zapier, Make, DocuSign Why choose me? • Clear communication, fast turnaround, and proactive updates • Clean, well-documented, and maintainable code • Full ownership from architecture to deployment • Proven track record working with startups, agencies, and enterprise teams • Committed to delivering high-quality work that solves real business problems Whether you need a sleek frontend, a powerful backend, or an all-in-one full-stack solution — I’m here to help bring your ideas to life, on time and at scale. Let’s build something remarkable together! 🤝 keywords: JavaScript, TypeScript, Tailwind CSS, HTML, CSS, Bootstrap, React, React Native, Expo, Python, Django, FastAPI, Flask, Vue.js, Next.js, Nuxt.js, PHP, Laravel, Postman, Figma, Adaptive Web Design, User Experience Design, User Interface Design, Style Guide, Landing Page, builder.io, Design Mockup, Design Enhancement, Automation, Data Visualization, Zapier, Make, DocuSign, Airtable, Softr, Bubble.io, Tallyform, AWS, EC2, S3, Cloudfront, DynamoDB, RDS, Terraform, VPC, MySQL, PostgreSQL, MongoDB, GraphQL, ElasticSearch, PostGIS, Google Map, Foot traffic, heatmap, dashboard, analytics, C#, windows application, VPN
- Firebase
- TypeScript
- React
- Node.js
- Vue.js
- Nuxt.js
- Next.js
- Python
- Django
- FastAPI
- Google Cloud Platform
- AWS Development
- GraphQL
- PHP
- Laravel
Saitama, Japan
💡 Got a game or app idea? I'll build it right, fast, and clean. I'm Isma, a game programmer and developer with 7+ years of experience turning ideas into polished 2D/3D games and interactive apps, built with Unity, Godot, and across web and mobile. What I do: 🎮 Game development (Unity & Godot, 2D & 3D) 📱Mobile apps (Android & iOS) 🌐 Web & desktop applications ⚡ Performance optimization & bug fixing 🚀 Prototyping & MVPs If you want someone who can handle both the creative and technical sides, and deliver polished, reliable results, I'd love to chat!
- Firebase
- Unity
- Godot
- C#
- AR & VR
- Meta Quest
- FMOD
- C++
- Python
- Android
- Java
- Angular
- Vue.js
- TypeScript
- JavaScript
- Linux
Minamiuonuma, Japan
If you need a Flutter app with real AI inside it, not just a ChatGPT wrapper, you are in the right place. I am a Flutter and AI Developer with 5+ years of experience building intelligent cross-platform applications for iOS, Android, and Web. I specialise in combining Flutter's performance with the power of modern AI including OpenAI, Gemini, LangChain, and custom LLM pipelines to build products that don't just look great but actually think, automate, and deliver real value to users. I have shipped 50+ projects across mental wellness, transportation, real estate, HR tech, and SaaS from MVP to App Store launch with a 98% client satisfaction rate. Real AI and Flutter Projects I Have Shipped Amorra - AI Companion App (Mental Wellness · Flutter · iOS and Android) A privacy-first Flutter application delivering emotionally intelligent, AI-powered conversations for users aged 50+. Built with a custom LLM conversation engine, Firebase Firestore for personalised memory, Stripe for subscriptions, and GetX for state management. Focused on daily engagement, emotional wellbeing, and a warm, human-feeling AI experience for an underserved demographic. Stack: Flutter · Firebase · Firestore · OpenAI · Stripe · GetX Airport Shuttles 4 Less - Flutter Transportation Booking App (iOS and Android) A full-featured cross-platform Flutter app for an airport shuttle booking service. Real-time ride scheduling, booking management, payment integration, push notifications, and a seamless traveler experience built for reliability and speed on both iOS and Android. Stack: Flutter · Firebase · Stripe · REST APIs · Push Notifications Elegant Advisors - Bilingual Real Estate Web Platform (Flutter Web) A Flutter Web platform with a powerful admin dashboard for a real estate advisory business. Bilingual interface, premium property listings, and streamlined internal operations, fully responsive and performance-optimised for the web. Stack: Flutter Web · Dart · Firebase · Admin Dashboard ATS - Applicant Tracking System (Flutter Web · SaaS · HR Tech) A role-based recruitment management SaaS platform built with Flutter Web and Firebase. Job postings, multi-role access control, application tracking, document validation workflows, and Firebase Cloud Functions handling complex business logic at scale. Stack: Flutter Web · Firebase · Firestore · Cloud Functions · GetX What I Build Flutter App Development Cross-platform Flutter apps for iOS, Android and Web MVP development from idea to App Store in weeks Complex UI with animations, custom widgets and pixel-perfect design State management with GetX, BLoC, Riverpod and Provider App Store and Google Play deployment end-to-end AI-Powered Application Development LLM-integrated Flutter apps using OpenAI, Gemini and Claude APIs AI chatbots with context memory, personas and custom knowledge bases RAG (Retrieval-Augmented Generation) pipelines for document intelligence AI workflow automation including smart agents, triggers and business process AI Vector database integration with Pinecone, Weaviate and Supabase pgvector Voice AI including speech-to-text, text-to-speech and voice-first interfaces AI recommendation engines and personalisation systems Full Stack and Backend Firebase and Supabase architecture that is real-time, serverless and scalable Node.js and FastAPI backends with clean REST and GraphQL APIs Payment systems including Stripe, PayPal, subscriptions and in-app purchases Admin panels, client portals and CRM systems Cloud deployment on AWS, GCP, Vercel and Firebase Hosting Full Tech Stack Mobile and Frontend: Flutter, Dart, React, Next.js, TailwindCSS State Management: GetX, BLoC, Riverpod, Provider AI and LLM: OpenAI API, Gemini API, LangChain, LlamaIndex, RAG pipelines, vector databases, Pinecone, Supabase pgvector Backend: Node.js, Express.js, FastAPI, Python Databases: Firebase Firestore, Supabase, PostgreSQL, MongoDB Cloud and DevOps: AWS, GCP, Firebase Hosting, Vercel, Docker, GitHub Actions, CI/CD pipelines Payments: Stripe, PayPal, Apple Pay, Google Pay, in-app purchases Industries I Have Delivered In AI app development · Mental wellness and companion apps · Transportation and ride booking apps · Airport shuttle apps · Real estate platforms · HR tech and applicant tracking systems · SaaS dashboards and automation tools · E-commerce and marketplace apps · Delivery and logistics systems · EdTech and online learning platforms · Legal tech and document intelligence · CRM and client management systems Ready to Build Something Intelligent? If you need a Flutter app with real AI inside it, a chatbot with memory, a document intelligence tool, a smart automation system, or an AI-first mobile product, send me a message with a quick overview of what you are building. I respond within a few hours and will give you an honest breakdown of scope, timeline, and the smartest approach to build it right. Let's build something intelligent together.
- Node.js
- Next.js
- React
- Flutter
- React Native
- Front-End Development
- Back-End Development
- Full-Stack Development
- Solidity
- Blockchain Development
- AI Bot
- AI Development
- AI Builder
- Dart
Suita, Japan
👋 Hello and welcome! I’m a passionate Senior Full-Stack Developer with 9+ years of experience, specializing in modern frontend & backend frameworks, AI, Web Scraping, Web3, and Mobile App Development. I don’t just write code—I craft high-performance, scalable, and future-ready solutions tailored to your unique needs. Whether you're a startup looking to disrupt the market or an established business aiming for digital transformation, I'm here to bring your vision to life. What I Can Do for You: ✅ Frontend Excellence: React.js, Next.js, Vue.js, Svelte, Angular, TypeScript, Tailwind CSS, Material-UI ✅ Backend Mastery: Node.js (Express/Nest.js), Python (Django/Flask), Laravel, Java Spring, .NET ✅ AI & Web3 Solutions: ChatGPT/OpenAI, TensorFlow, Blockchain, Smart Contracts, Solidity, NFT Platforms ✅ Web Scraping & Automation: Puppeteer, Selenium, Scrapy, BeautifulSoup, Reverse Engineering, Captcha Bypass ✅ Mobile App Development: React Native, Flutter, Swift, Kotlin, Expo – delivering seamless cross-platform experiences ✅ Database & API Integration: MySQL, PostgreSQL, MongoDB, Redis, Firebase, REST, GraphQL, Stripe, Twilio, Google Maps ✅ DevOps & Cloud: AWS, GCP, Docker, Kubernetes, CI/CD Pipelines Why Clients Love Working With Me: - 100% Client Satisfaction – I treat every project as my own and strive for perfection. - Fast & Reliable – Clear communication, quick execution, and on-time delivery. - Scalable & Secure Code – Best practices for performance optimization & cybersecurity. - Innovative Problem-Solver – I don’t just build software; I create solutions that drive success. - Long-Term Collaboration – I aim to build lasting relationships with my clients. Let’s build something amazing together! Message me now and let’s discuss how I can help you achieve your goals.
- Artificial Intelligence
- Mobile App
- International Development
- Web Application
- Web Development
- Mobile Game
- Android App Development
- App Development
- iOS Development
- Svelte
- Java
- Spring Boot
- n8n
- Blockchain
- Bot Development
- Python
- WooCommerce
- Vue.js
Shobu, Japan
🏆 Top Rated Plus | 🥇 7+ Years Industrial Experience | 💯 100+ Satisfied Clients What started as a passion for solving coding challenges has grown into a career of 𝐛𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐢𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭, 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐞𝐝 𝐬𝐲𝐬𝐭𝐞𝐦𝐬, from full-stack web applications to AI-driven workflows that save businesses hours every day. Over the past 7+ years, I’ve helped companies transform the way they operate by combining 𝐀𝐈 𝐢𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧, 𝐆𝐨 𝐇𝐢𝐠𝐡 𝐋𝐞𝐯𝐞𝐥 (𝐆𝐇𝐋) 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬 into solutions that don’t just work, but actually accelerate growth. ✅ 𝐇𝐨𝐰 𝐈 𝐂𝐚𝐧 𝐇𝐞𝐥𝐩 𝐘𝐨𝐮 - 𝑨𝑰 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕 & 𝑨𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏: Chatbots, AI employees, predictive analytics, and recommendation systems. - 𝑭𝒖𝒍𝒍-𝑺𝒕𝒂𝒄𝒌 𝑫𝒆𝒗𝒆𝒍𝒐𝒑𝒎𝒆𝒏𝒕: Scalable, production-ready apps using React, Next.js, Node.js, TypeScript, Laravel, and PHP, from MVPs to complex SaaS platforms. Whether it's a server-rendered Next.js app, a Node.js API, or a strictly typed TypeScript codebase, I build for performance and maintainability. - 𝑮𝒐 𝑯𝒊𝒈𝒉 𝑳𝒆𝒗𝒆𝒍 𝑪𝑹𝑴: Account setup, pipeline automation, workflows, triggers, and 3rd-party integrations. - 𝑭𝒖𝒏𝒏𝒆𝒍𝒔 & 𝑪𝒐𝒏𝒗𝒆𝒓𝒔𝒊𝒐𝒏𝒔: High-converting sales funnels, lead capture systems, nurturing workflows. - 𝑪𝒍𝒐𝒖𝒅 & 𝑰𝒏𝒕𝒆𝒈𝒓𝒂𝒕𝒊𝒐𝒏𝒔: AWS, APIs, and external tool integrations for smooth automation. - 𝑰𝒏𝒅𝒖𝒔𝒕𝒓𝒚 𝑬𝒙𝒑𝒆𝒓𝒊𝒆𝒏𝒄𝒆: Industry Experience: Healthcare (HIPAA-compliant development), Fintech, Real Estate, Legal Tech, and multiple service-based industries, delivering secure, scalable, and compliance-ready solutions. 📌 𝐑𝐞𝐜𝐞𝐧𝐭 𝐇𝐢𝐠𝐡𝐥𝐢𝐠𝐡𝐭𝐬: -Designed 𝑨𝑰-𝒑𝒐𝒘𝒆𝒓𝒆𝒅 𝒄𝒉𝒂𝒕𝒃𝒐𝒕𝒔 & 𝒂𝒔𝒔𝒊𝒔𝒕𝒂𝒏𝒕𝒔 for SaaS platforms to improve customer engagement and support. -Built a 𝒎𝒖𝒍𝒕𝒊𝒍𝒊𝒏𝒈𝒖𝒂𝒍 𝒄𝒐𝒂𝒄𝒉𝒊𝒏𝒈 𝒑𝒍𝒂𝒕𝒇𝒐𝒓𝒎 with real-time AI features, automated invoicing, and Stripe/PayPal payments. -Optimized 𝑪𝑹𝑴𝒔 (𝑺𝒖𝒊𝒕𝒆𝑪𝑹𝑴, 𝒁𝒐𝒉𝒐, 𝑯𝒖𝒃𝑺𝒑𝒐𝒕, 𝑮𝑯𝑳, 𝑺𝒖𝒊𝒕𝒆𝑫𝒂𝒔𝒉)— boosting lead tracking and workflow efficiency. My clients describe me as 𝒑𝒓𝒐𝒂𝒄𝒕𝒊𝒗𝒆, 𝒓𝒆𝒍𝒊𝒂𝒃𝒍𝒆, 𝒂𝒏𝒅 𝒐𝒖𝒕𝒄𝒐𝒎𝒆-𝒇𝒐𝒄𝒖𝒔𝒆𝒅. I don’t just deliver code — I build 𝒔𝒄𝒂𝒍𝒂𝒃𝒍𝒆 𝒔𝒚𝒔𝒕𝒆𝒎𝒔 that reduce manual work, streamline operations, and give businesses a competitive edge. 👉 Whether you need an 𝑨𝑰-𝒑𝒐𝒘𝒆𝒓𝒆𝒅 𝒇𝒖𝒏𝒏𝒆𝒍, 𝑮𝑯𝑳 𝒂𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏 𝒔𝒆𝒕𝒖𝒑, 𝒐𝒓 𝒂 𝒇𝒖𝒍𝒍-𝒔𝒕𝒂𝒄𝒌 𝒂𝒑𝒑 𝒘𝒊𝒕𝒉 𝒊𝒏𝒕𝒆𝒍𝒍𝒊𝒈𝒆𝒏𝒕 𝒇𝒆𝒂𝒕𝒖𝒓𝒆𝒔, I can help you get there. Let’s turn your ideas into systems that work smarter, not harder. 𝑲𝒆𝒚𝒘𝒐𝒓𝒅𝒔: Node JS, Next.js, React, PHP Developer, Laravel Expert, WordPress Developer, React JS Developer, Vue JS Developer, CRM Customization Expert, SuiteCRM Developer, SugarCRM Specialist, GoHighLevel Expert, GoHighLevel Integration, GoHighLevel Automation Specialist, GoHighLevel Funnel Builder, GoHighLevel Workflow Automation, SuiteDash Setup, Zoho CRM Customization, HubSpot CRM Developer, API Integration Specialist, AWS Certified Developer, AWS Lambda Developer, Cloud Web Developer, Chatbot Developer, AI Integration Specialist, AI Employee Setup, Data Migration Expert, MySQL Expert, PostgreSQL Developer, MongoDB Specialist, Database Design Consultant, Custom CRM Development, Real Estate Platform Developer, E-commerce Website Developer, Lead Management System Expert, Workflow Automation Specialist, Predictive Analytics Developer, SaaS Platform Developer, Funnel Design Expert, Marketing Automation Specialist, Stripe Payment Gateway Developer, WordPress Plugin Developer, AI-Powered Web Apps, Secure Cloud App Developer, Sales Funnel Optimization, CRM Automation Expert, High-Converting Funnel Developer, AI Chatbot Integration, Fintech, HIPPA, Stripe, Paypal, Real Estate
- WordPress
- Customer Relationship Management
- Web Development
- API
- Amazon Web Services
- Back-End Development
- OpenAI API
- AI Chatbot
- Next.js
- React
- Node.js
- Full-Stack Development
- Artificial Intelligence
- HighLevel
- TypeScript
Kobe, Japan
Mobile application engineer with extensive experience. Able to work remotely with geographical diverse teams. Experienced SCRUM and Agile tools, Fast learner of new technologies. Conversational English, Knowledge in Business Process Modeling, Database analysis, ready to handle hard situations with calm and responsibility. Technical Skills: - Git, Bitbucket, Docker, TestFlight, Google API, Facebook API, Webhooks - Methodology - Agile (SCRUM) - Knowledge of UX/UI patterns - SOLID and Clean Architecture principles - REST, JSON - Cocoapods - Familiar utilities: Jira/Confluence, Figma - Programming languages: - Javascript, React-Native, Realm, SwiftUI - professional - TypeScript, Swift, Python, Java, SQLite, GraphQL, Realm – familiar - Testing and debugging: Crashlytics, manual testing experience, Xcode Debugger, React-native Debugger and Instruments - Maps: Mapbox, GoogleMap - Payment gateways: Plaid, Nordigen, Buckzy, Stripe - KYC Integrations: AliceOnboarding, Veridas - Analitycs Integrations: Emma, UXCam, Google Analytics/Firebase - Chat Integrations: ChatStream
- Firebase
- Scrum
- GraphQL
- JavaScript
- Ruby on Rails
- React Native
- iOS Development
- Android App Development
- Google APIs
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