Upwork home
Sign up
Secondary

Hire the best Flutter Developers in Spain

Check out Flutter Developers in Spain with the skills you need for your next job.
Get started
  • $35 hourly

    • 4.8/5
    • (79 jobs)
    Hi everyone! I'm experienced Web Developer, working in web for almost 7 years. My main specialization now is Shopify and React, I love creating beautiful websites with crazy design ideas. Working with your designs made on any platform (Figma, Adobe, etc) or with custom made designs, I can make pixel-perfect, mobile-friendly, animated. You'll enjoy working with me as I'm responsible, highly experienced, good communicator and motivated to make you satisfied with the result! Share me your ideas and I'll try my best to reach the result!
    Featured Skill Flutter
    API
    Shopify Website Design
    Dart
    Shopify Development
    Web Development
    HTML5
    JavaScript
    Elementor
    Shopify Templates
    Landing Page
    Web Design
    WordPress
    React
    Shopify
  • $59 hourly

    • 5.0/5
    • (34 jobs)
    🤔 Do you need to fix your existing app? 🤔 Perhaps get through the Apple review? 🤔 Or maybe develop your dream project from scratch? 😍 You've found the right person! Here are some facts about me: ✅ I'm experienced with iOS, MacOS, Android, AppleTV, iPadOS, WatchOS, Siri. ✅ I deliver pixel-perfect apps with excellent code style and no bugs. ✅ I've completed 20+ projects, from inception to AppStore launch. ✅ As a team lead, I have over 8 years of experience developing applications. ✅ Social networks, e-commerce, FinTech, CRM, enterprise, and others. ✅ I have strong analytical skills and a master's degree in computer science.
    Featured Skill Flutter
    Cross Functional Team Leadership
    Git
    Metal
    Native Fluency
    Streaming Software
    macOS
    Engineering & Architecture
    Swift
    iOS
    tvOS
    C
    WebRTC
    Smartphone
    Native App Development
  • $30 hourly

    • 5.0/5
    • (17 jobs)
    I’m your partner for: 🔧 Crafting custom solutions tailored to your unique business objectives. 💡 Providing in-depth tech expertise for your projects. 💰 Delivering efficient, cost-saving development within budget. 🚀 Turning your ideas into mobile applications. Giants like Vodafone, Huma, Bayer, and Stamford and Cambridge Med Labs have not only trusted but thrived with my 10 years of experience. Let me ensure the success of your app, guaranteeing a delightful experience for both you and your users. Need additional skilled developers? I've got you covered with a team of experienced, trusted, and proven professionals ready to elevate your project. 🎯 Search Keywords: iOS Development, iPad App Development, Web Application, Android App Development, Java, iOS, Android, Apple Xcode, Firebase Realtime Database, Swift, Objective-C, PHP, Kotlin, Mobile App Development, Skilled mobile app developer, Front-End Development, Flutter, Python, Node.js, API Development, Firebase, Amazon Web Services, Mobile App, Mobile Developer, navigation, UI, User Interface, Connected Device, Wearable, Chat Bot, Smart Device, Problem-solving, ChatGPT, Chat GPT, Copilot, Claude, API, API Integration
    Featured Skill Flutter
    Amazon
    User Profile Creation
    Chat & Messaging Software
    Firebase
    Android Studio
    Android App Development
    Android SDK
    iOS
    Kotlin
    Java
    Mobile App Development
    Swift
    iOS Development
    Android
  • $40 hourly

    • 4.8/5
    • (33 jobs)
    Good Day! I am a Computer Engineer with 3+ years of experience in Internet of Things (IoT), Electronics, Robotics, Machine Learning, Web, and Mobile app development. Services I offer: -Hybrid Mobile App Development using Flutter SDK - Native Mobile Application Developer using Android and iOS -Full-Stack Web App Development using MERN Stack -Custom IoT app development for ios and android using Flutter -Arduino, Raspberry Pi, STM32, NodeMCU, ESP8266, ESP32, and other MCUs programming and interfacing -Machine Learning based Flutter mobile app development for ios and android -On-device machine learning on ESP32, STM32, Raspberry Pi and Flutter mobile apps -Cloud based Machine learning using Google Colab, Jupyter Notebook, and Python -IoT Product Design and Development -Web Application development using various server-side languages like React, Node, etc. and deployment on server AWS, Google, etc -IoT Platforms like ThingsBoard, ThingSpeak, Google IoT Core, AWS IoT, IBM Watson Bluemix integration and customization -Software simulations, including Proteus, MATLAB, and many other -TensorFlow model development, TensorFlow lite conversion of a standard model, TensorFlow model deployment on Cloud, microcontrollers, and mobile apps -Industry 4.0 (IoT, Embedded Systems, ML/AI, Full Stack App Dev) Expert Non-Upwork Contracts completed so far: 1. RFID IoT based Wireless battery-powered smart lock hardware and PCB development + Manager and Tenant mobile app development using Flutter 2. Developed Raspberry Pi based Microscope to analyze water quality based on Machine Learning + Flutter mobile app development and communication via Bluetooth between the mobile app and Raspberry pi 3. Raspberry Pi based Smart Agriculture system. Monitoring of Light intensity, temperature, and humidity near plants and water level in the tank on an LCD. Real-time monitoring of these parameters over web app (Dashboard development and data filtering) 4. Barcode app development for Baskcart LLC. Barcode reading, Sending all barcodes to ESP32 via Bluetooth, Receipt recognition, Todo list, and complete Ui design in Flutter 5. BLE based Flutter app for monitoring pressure valve and generate graph 6. Bluetooth based Flutter app to communicate with ESP32-CAM and view live streaming, capture video and images 7. ESP32-CAM based Skin cancer detection 8. Green apple detection using Flutter mobile app. Custom model development using Teachable machine and TensorFlow lite conversion
    Featured Skill Flutter
    Internet of Things Solutions Design
    Arduino
    Microcontroller Programming
    Azure IoT HuB
    Internet of Things
    Bluetooth LE
    Consumer Electronics
    Machine Learning
    C++
    Android
    Mobile App Development
    MQTT
    Dart
    Bluetooth
  • $53 hourly

    • 5.0/5
    • (7 jobs)
    I’ve been helping US startups build scalable, high-performing mobile apps with great user experiences. Using Flutter, Swift, and React Native, I focus on creating apps that truly engage users. With over 10k GitHub contributions, I bring solid coding expertise and a strong dedication to quality. 💡 What I Bring as a Senior Mobile Developer • Cross-Platform Expertise: 5+ years building dynamic apps using Flutter/Dart, React Native. • Proven Success: Boosted app performance by 20% and reduced regression rates by 90% for Ignite Tournaments. • User-Centric Design: Crafting intuitive UI/UX with Clean Architecture, Riverpod, and MVVM for robust app scalability. 📈 How I Help Clients Succeed • Scalability: Writing maintainable code designed for long-term growth. • Efficiency: Using CI/CD pipelines like Codemagic to cut deployment times by 30%. • Reliability: Delivering bug-free apps with comprehensive testing across all layers. 🚧 Technical Expertise • Languages & Frameworks: Flutter, React Native, Swift, Kotlin, Laravel, TypeScript. • Backend & Databases: Firebase, PostgreSQL, Supabase. • API Integration: REST, GraphQL, Shopify APIs. • Tools & Processes: Codemagic, Git, TDD, Agile (Scrum, Kanban). 🎯 How I Work 1️⃣ Collaborating closely to align with your vision. 2️⃣ Developing innovative, tailored solutions. 3️⃣ Ensuring seamless deployment and providing reliable ongoing support. ✨ Why Choose Me? I’m a Meta-certified iOS Developer & Expert Flutter Engineer, passionate about delivering scalable, high-quality apps. With extensive experience in US startups and global clients, I guarantee clear communication and exceptional results every step of the way. 📲 Let’s Build Something Exceptional Together!
    Featured Skill Flutter
    Swift
    SwiftUI
    RESTful API
    Push Notifications
    In-App Purchases
    Firebase Cloud Firestore
    Firebase
    NestJS
    Hybrid App Development
    Android
    Mobile App Development
    iOS
    iOS Development
    Dart
  • $75 hourly

    • 5.0/5
    • (2 jobs)
    Pay cheap, pay twice—or hire me and get it done right the first time. I’m a senior software engineer who excels at fixing the mess others leave behind. If your project’s in trouble, I’ll turn it around fast and right. I can help you with: ✓ Taking over, auditing, and improving your existing mobile app ✓ Creating your mobile app from scratch ✓ Joining your mobile team My strengths ✓+20 years of experience as a software engineer and architect ✓ +10 years of experience creating mobile apps ✓ Worked with companies of all sizes: startups, SMEs, and large corporations ✓ Business oriented. I’m an entrepreneur myself. ✓ Industry best practices (Test-Driven Development (TDD), Clean Architecture, Clean Code, SOLID principles, and CI/CD) ✓ Latest Android technologies (Kotlin, coroutines, MVVM, Jetpack Compose, JUnit, MockK) ✓ Experience with Flutter, Kotlin Multiplatform and many backend technologies. ✓ On the shoulders of AI. I harness AI-powered tools like GitHub Copilot, Cursor, and Windsurf to boost efficiency in development, automation, and problem-solving ✓ Willing to push the boundaries and assuming new challenges FAQ 1. Why should I trust you over other freelancers? I’ve been hired repeatedly to fix projects that were left in chaos by other developers. I bring proven experience in delivering quality code and rescuing troubled projects. 2. How do you handle poor-quality code from previous developers? I specialize in assessing and fixing messy code. Instead of starting from scratch, I analyze what can be salvaged and ensure the project gets back on track efficiently. 3. What if I’m not technical? Can you help me understand progress? Absolutely. I provide clear communication, regular demos, and updates to ensure you’re always in the loop, regardless of your technical background. 4. What happens if the project scope is unclear or changes? I’m used to working with evolving requirements, especially in fast-paced startups. I help refine the scope and keep the project aligned with your goals, even as they change. 5. Do you subcontract your work? No. When you hire me, you work directly with me. I don’t outsource or subcontract any part of your project. 6. Can you deliver high-quality work even if it’s more expensive? A higher rate reflects speed, expertise, and the ability to avoid common pitfalls. By leveraging AI tools and deep industry knowledge, I reduce technical debt, ensuring your project is not just built fast but built right—saving you time, money, and frustration down the road. 7. How will I know the project is progressing as planned? I provide regular progress updates and deliverables, ensuring transparency. You’ll always know what’s happening and why, with no surprises. 8. Why is it better to hire you than a cheaper developer? Cheaper developers often deliver poor results, costing you more in the long run. I fix those mistakes, delivering work right the first time to save you from expensive rebuilds. Technologies During my professional career I employed a number of technologies including C, C ++, Java, Kotlin, Flutter, Dart, PHP, Laravel, Python, SQL, .NET, Django, CSS, JavaScript, TypeScript, Angular, Spring Boot, computer vision, among others. More: cesarmauri.com I've worked with clients worldwide, both directly and through platforms like Malt and Shakers. Be among the first to hire me on Upwork! Let's talk?
    Featured Skill Flutter
    C++
    Project Management
    Java
    Android
    Software Architecture & Design
    Continuous Integration
    Test-Driven Development
    Clean Architecture
    Kotlin
  • $35 hourly

    • 5.0/5
    • (2 jobs)
    I'm a software developer, experienced in Flutter and Firebase. Building medium to large-scale applications for Android, iOS, and the web. I also fluently edit videos and color grade in DaVinci Resolve, and photos in Photoshop/Lightroom.
    Featured Skill Flutter
    HTML
    Tailwind CSS
    React
    Next.js
    Web Development
    Firebase
    DaVinci Resolve
    Photo Editing
  • $50 hourly

    • 5.0/5
    • (1 job)
    Driven technologist with over a decade in pioneering decentralized tech, I blend passion and expertise to craft client-centric, innovative solutions. My focus is on leveraging cutting-edge technologies for unique customer experiences. Expertise: Low-level programming (C, C++, Rust) specializing in cryptography and cross-platform libraries. Advanced smart contract development using Solidity, C++, Rust, ASM for various blockchain platforms. Rich front-end development and data visualization with TypeScript, Vue, React, and advanced math. Building robust server applications and microservices in NodeJS, C#. Most of my work is showcased on GitHub (will share in chat). As a Blockchain Consultant, I've collaborated with notable clients such as Deloitte, Accenture, KROK, rossotrudnichestvo, and the Embassy of Ossetia, developing and teaching a Blockchain course at Stepic. At Binary District, I lecture on decentralized computer architecture and transaction-based finite state machines.
    Featured Skill Flutter
    Web3
    Blockchain
    Automation
    Dart
    NestJS
    React
    Next.js
    Decentralized Exchange
    Tokenomics
    Rust
    Solidity
    TypeScript
    Node.js
  • $45 hourly

    • 5.0/5
    • (1 job)
    📱 Full Stack Developer Mobile App & Web 💻 Frontend Developer 🌐 Backend Developer ✅ On Time Delivery ✅ Quick Response ✅ Quality Work ✅ Client Satisfaction 👋 Are you looking for a talented Full-Stack Developer to create exceptional websites or mobile applications that drive success? I’m a dedicated Full-Stack Mobile and Website Developer with expertise in delivering seamless, user-centric experiences across both web and mobile platforms. What I Offer: • Comprehensive Development Skills: Whether it's building responsive websites or native mobile apps, I offer end-to-end solutions that bridge the gap between design and functionality. • End-to-End Web Development: From user-friendly front-end interfaces to powerful back-end systems, I specialize in building web and mobile applications that are both functional and visually stunning. • Web Development Expertise: o Frontend: HTML, CSS, JavaScript, Vue.js, Angular, SASS, React) o Backend: Node.js, Python, Go/Golang o Databases: MySQL, PostgreSQL, MongoDB, Oracle, Redis o APIs: RESTful, GraphQL o Libraries: Next, React, RTK, Tailwind, MUI, etc. • Mobile Development Expertise: o Frameworks & Tools: React Native, Flutter, Apple Xcode, Android/iOS SDK, Android Studio, GitHub, WebRTC, Android/iOS Development, Gradle, Node.js and more o Cross-Platform: Build apps for both iOS and Android with one codebase using ReactNative and Flutter. o Languages: Python, Dart, JavaScript, TypeScript, HTML5, CSS3 o Databases: SQLite, Redis, PostgreSQL, Oracle Database, MongoDB o Deliverables: Payment Gateway Integration, Mobile App Improvement/Redesign/Development/Testing/Localization, Mobile App Bug Fix • Cloud Integration: AWS and Firebase for reliable and scalable hosting solutions. • Responsive Design: Ensuring a flawless user experience across all devices — be it desktop, tablet, or smartphone. • Collaboration: Whether working solo or with a team, I’m an excellent communicator who values feedback and iterative development. Why You Should Choose Me: • Versatile Expertise: I specialize in both mobile and web development, enabling me to deliver comprehensive solutions for your project’s needs. • Client-Centered Approach: I listen carefully to your ideas and objectives to create tailored solutions that align with your goals. • Efficiency & Scalability: I build solutions that not only meet your current needs but also scale for future growth. • Quality Code: I follow best practices to ensure your code is clean, maintainable, and high-performing. • Timely Delivery: I understand the importance of deadlines and ensure that your project is delivered on time, every time. Ready to Create Stunning Web & Mobile Applications? If you’re looking to develop an innovative mobile app, a modern website, or a hybrid solution that fits both platforms, I am here to help bring your vision to life. Let’s Get Started! Feel free to contact me for a consultation, and let's discuss how I can help you build your next big idea. I’m available for both short-term and long-term projects and am excited to collaborate with you!
    Featured Skill Flutter
    SCSS
    Django
    FastAPI
    Docker
    Python
    PostgreSQL
    cPanel
    WordPress
    Ionic Framework
    React Native
    React
    JavaScript
    CSS
    HTML
  • $60 hourly

    • 5.0/5
    • (2 jobs)
    My passion is technology and doing things with technology that amazes and helps people/businesses in their daily lives. I have an entrepreneurial, pragmatic approach which I use in all my adventures. Over last 15 years I've worked at various positions like software developer, engineer, architect, Chief Technology Officer and development director. I worked for start-ups that became big and enterprises. The last few years my focus has been on blockchain, cloud and (web) apps. I've created many apps and websites and have strong business and mobile knowledge. I can work independent or in a team or even create a team. Seeking challenges in short-term contracts in the area of: - Crypto and blockchain - Social NFT market places - Cloud websites and web apps (PWA). - Architecture or Software consultancy. - Flutter apps for Android and iOS.
    Featured Skill Flutter
    Dart
    Redis
    TypeScript
    Svelte
    Solidity
    Vercel
    Ethereum
    Blockchain
    Azure App Service
    Architectural Design
    Vue.js
    Mobile App Development
    C#
  • $30 hourly

    • 5.0/5
    • (42 jobs)
    🚀 Top-Rated Developer & Machine Learning Expert | 100% Job Success | 5+ Years of Experience Welcome! I'm Muhammad Ibrahim, an experienced developer specializing in Mobile App Development and Machine Learning solutions. My mission is to help startups and enterprise-level businesses thrive by turning innovative ideas into robust, high-quality, and scalable technology solutions. 🔹 Mobile Development Expertise: Native App Development (Swift, Kotlin) Cross-Platform Apps (Flutter, React Native) Custom UI/UX Design Backend Integration (REST APIs, Firebase) App Performance Optimization Third-party API Integrations Agile Methodology & Project Management 🔹 Machine Learning Expertise: Customized ML and Deep Learning Model Development Natural Language Processing (Chatbots, Text Summarization, Sentiment Analysis) Computer Vision (Image Classification, Object Detection, Image Segmentation) Model Deployment and Integration (APIs, Docker, Kubernetes) Comprehensive ML Pipelines and MLOps Data Preprocessing, Feature Engineering, and Automation 🔹 Technical Skills: Programming: Python, Swift, Kotlin ML Frameworks: TensorFlow, PyTorch, Scikit-learn, Hugging Face Cloud Platforms: AWS SageMaker, Azure Machine Learning, Google Cloud AI Platform DevOps: Docker, Kubernetes 🔹 Certifications: AWS Certified Developer – Associate AWS Certified Machine Learning – Specialty Azure AI Engineer Associate TensorFlow Certified Developer 🔹 Industries Served: E-commerce & Retail Healthcare & Fitness Education & eLearning Finance & Fintech Social Media & Networking Travel & Hospitality IoT 🔹 Why Partner With Me? Certified Expertise: Extensive industry-recognized certifications. Proven Track Record: Consistently delivering successful projects on-time and within budget. Transparent Communication: Regular updates, clear communication, and collaborative processes. Quality-Oriented Approach: Maintainable code and scalable solutions aligned with industry best practices. Continuous Support: Committed to your long-term success. Ready to elevate your business with exceptional mobile and AI-driven solutions? 📩 Let's discuss your project today!
    Featured Skill Flutter
    UX & UI
    Mobile App Development
    Responsive Design
    Dart
    Amazon Web Services
    RESTful API
    Node.js
    Android App Development
    API Integration
    Figma
    Android
    iOS
    Firebase
    Kotlin
    Startup Company
  • $25 hourly

    • 5.0/5
    • (3 jobs)
    I am a full-time software developer and localization tester with over 7 years of experience creating and developing for companies of all sizes and environments. As a previous software developer in the mobile and game industry, I have a well-rounded skill set, software development experience, and a passion for bringing innovative ideas to fruition. I believe performance and creating something meaningless are my top priority. I deliver solutions for projects based on client needs. My background in software development and localization testing makes me a very flexible person that can adjust fast to any company and environment. [SERVICES] Mobile developing Game Developing Full-Stack Developer VR developer Localization Tester Translator [PROGRAMS] Unity3D Unreal Engine Adobe - Photoshop, Adobe Substance, Illustrator VSCode Visual Studio I deliver reliable work promptly and on time. If you are looking for a trustworthy software developer or localization tester for your project I am here to help you. I would love to hear from you.
    Featured Skill Flutter
    Unity
    iOS
    Smartphone
    Software QA
    Android
    Translation
    English
    Teaching Spanish
    React Native
    Localization Testing
    Dart
    Python
    C#
  • $10 hourly

    • 5.0/5
    • (1 job)
    I’m a professional Flutter developer with 1 year of experience building elegant, scalable, and high-performing mobile applications for iOS and Android. Key Skills: Flutter/Dart Development: Building efficient, maintainable, and responsive mobile applications. Cross-Platform Expertise: Writing reusable code for iOS and Android platforms with full native integration when necessary. UI/UX Design: Translating Figma, Adobe XD, and Sketch designs into stunning Flutter apps. API Integration: Proficient in RESTful APIs, GraphQL, and Firebase/Supabase for backend integration. Testing and Debugging: Using Flutter’s testing tools and debugging techniques to ensure smooth app performance. Version Control: Skilled in Git for collaborative and secure development. What I Offer: Development of new mobile applications from scratch. Code reviews and performance optimizations for existing Flutter apps. Integration of third-party services like payment gateways, social logins, and analytics tools. Custom widgets and animations for a unique user experience. Ongoing maintenance, updates, and support post-launch. Why Choose Me? Strong attention to detail and commitment to deadlines. Transparent communication and regular updates throughout the project lifecycle. Dedication to creating apps that not only meet but exceed client expectations. Let’s discuss how I can turn your ideas into an impactful mobile experience. Drop me a message to get started!
    Featured Skill Flutter
    iOS
    Android
    Mobile App Design
    Mobile App Development
  • $5 hourly

    • 5.0/5
    • (6 jobs)
    My name is Oscar and I'm VR Unity Developer at V-Vision. Combined with my degree in game development and my master's degree in computer engineering, it has allowed me to develop skills as a full-stack developer, and Unity developer. My experience in front-end and back-end development is extensive, having worked with React and Node.js since 2019 creating apps from large companies such as SEAT and La Caixa. I have built projects, as well as worked on mobile projects with Swift and on game development projects in C# and Unity. I am confident not only in my skills but also in my professionalism. I am constantly staying ahead of the curve, learning and mastering all the relevant software tools needed to create the most efficient software and web applications in the industry. My tech stack mainly includes the following: • C#, c++, .NET • React.js, Next.js, Gatsby.js, Vue.js, Angular, TypeScript • Node.js, Express, Nest.js, • HTML, CSS, JavaScript, jQuery • Heroku, Docker, Git, Firebase, Google Cloud, Google Developer Console • MySQL, SQL Server, MongoDB, PostgreSQL • REST
    Featured Skill Flutter
    Git
    React
    Node.js
    Google Cloud Platform
    MongoDB
    SQL
    Docker
    Firebase
    API
    iOS Development
    iOS
    JavaScript
    Android
  • $37 hourly

    • 0.0/5
    • (0 jobs)
    👋 Hi! My name is Evgenii, and I am a mobile application developer with over 4 years of experience, as well as a web services and websites developer with over 10 years of experience. I specialize in mobile development using: 📱 Flutter 💻 Dart to create fast, scalable, and cross-platform solutions. In the field of web services and websites, I actively work with: 🌐 Laravel 🖥️ WordPress 🛒 WooCommerce to build powerful and flexible web platforms. I focus on solving the most challenging and unconventional tasks that other developers often shy away from. My clients appreciate my ability to tackle these challenges, delivering high-quality results and providing long-term support. If your project requires an out-of-the-box approach or you’re facing a task that seems impossible, you’ve come to the right place. My primary goal is to help your business succeed by delivering cross-platform mobile applications with Flutter and powerful web services with Laravel. Here’s what you’ll get when working with me: 🔗 Solutions for the toughest challenges: I take on challenges that other developers might reject and always find ways to achieve results. My experience allows me to adapt to any conditions and technical constraints. ⏳ Saving time and resources: Through cross-platform development with **Flutter**, I help cut development time by 30-40%, allowing you to hit the market faster and get ahead of competitors. Your team can focus on growing your business while I handle the technical side. ⚙️ Long-term support and reliability: I don’t just develop apps; I ensure they run smoothly after launch. You can rely on regular updates and ongoing support to keep your product current and fully functional. 🎨 Enhanced user experience (UX/UI): Every project starts with a deep analysis of user needs, ensuring that the interfaces are intuitive and easy to use. This increases user engagement and retention, directly impacting the growth of your audience and profits. 🔧 Reduced technical debt: I write code that is easy to maintain and scale, helping reduce future maintenance costs. This is especially important for startups looking to scale their applications. 📅 Guaranteed results: In the projects I manage, you always receive a product on time and according to your requirements. My experience with international clients allows me to be flexible and adapt to changes at any stage of the project. --- 🌟 Why do clients choose me? 🤝 Honesty and transparency: I keep clients informed throughout the process, provide realistic timelines, and follow a clear plan. This helps avoid surprises and delays. 👂 Ability to listen and adapt: I always listen carefully to my clients’ needs and strive to offer solutions tailored specifically to their business. No matter how complex the task, I find a way to solve it. 🔧 Deep technical expertise: My expertise extends beyond app development to include architectural solutions, API integrations, databases, and support throughout the development process. --- 📱 What do you get in the end? A mobile app or web service that works reliably, fulfills its purpose 100%, and is easy to scale as your business grows. My clients gain confidence that their project is in good hands. --- 🚀 Ready to tackle your challenge? Contact me, and let’s discuss how I can help take your project to the next level.
    Featured Skill Flutter
    iOS
    Android
    Figma
    Firebase
    RESTful API
    WordPress
    PHP
    SQL
    WordPress Theme
    WordPress Plugin
    Back-End Development
    Laravel
    Dart
    Mobile App Development
  • $25 hourly

    • 5.0/5
    • (7 jobs)
    I specialize in creating apps, websites, scripts or anything you need, using Python, Javascript, Dart, React, Next.js, Tailwind.css, Flutter and Firebase (and of course Wordpress, Wix, Shopify, Bubble and anything low code...). With a degree in Telecommunications Engineering from Universidad Politécnica de Madrid, with a specialization in telematics, I bring a wealth of technical knowledge and expertise to my work. With three years of experience as a cybersecurity engineer at GMV, I have honed my skills in building secure and reliable systems. I am proud to have contributed to the success of several high-profile projects during my tenure. Now, as the CTO at Loop Dev, I lead a team of developers to build innovative solutions that meet our clients' needs. My passion for programming and my commitment to quality have helped me earn a reputation as a dependable and results-driven programmer. I am confident that my skills, experience, and dedication will make me an excellent choice for your next project.
    Featured Skill Flutter
    WordPress
    Full-Stack Development
    App Development
    Scripting
    Web Development
    Next.js
    Web Application
    Mobile App Development
    Android
    iOS
    Node.js
    Python
    React
    Firebase
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    I’m a Digital Learning Experience Designer skilled in transforming traditional learning materials into engaging, user-friendly online content. With a background in educational engineering, UX-focused instructional design, and a double master’s degree in Language Didactics and Educational Engineering, I specialize in delivering effective, accessible, and culturally adaptable learning experiences. Key Strengths: - Instructional Design & E-Learning Development (Articulate 360, H5P, open edX, Moodle) - UX Analysis for Enhanced Learner Engagement - Multilingual Content Creation (English, French, Spanish, Japanese) - LMS Optimization & Web Technologies (HTML, CSS, JavaScript, PHP, Flutter) Notable Work: - Improved JobTeaser’s online career exploration modules, making content more interactive and assisting the dev team in LMS enhancements. - Developed multilingual hybrid escape games and e-learning scenarios for universities and research centers.
    Featured Skill Flutter
    Learning Management System
    Training & Development
    Educational Technology
    Elearning
    JavaScript
    Articulate Rise
    Articulate Storyline
    Instructional Design
  • $35 hourly

    • 0.0/5
    • (1 job)
    📱My apps have helped my clients to achieve >45k apps download on Google Play Store and iOS App Store, which allow them to reach >$15 million in funding. 🌟My clients are reaching the market FASTER, thanks to our own code generation tool (“FlutterLab CLI”) and saving money doing it. These are my favorites quotes: - “We are getting TRACTION!” - “On our first weeks online, we reached the 2.000 downloads mark!” - ”We just closed our first Seria A round. We reach the metrics!!” My clients are achieving Product-Market-Fit and reducing their Time-To-Market by 50%. ⚡️I don’t usually work with everybody, but we may be a great fit if you are thinking: - “I prefer good quality development, in the end, cheap is always expensive.” - “I never develop a digital product before, but I’m lean-focused. Let’s prioritize time-to-market” - “I understand how important it is to well-define a product to be optimal in development” Working with me, you will: ✨ Get a product-oriented analysis to optimize requirements for having the best time-to-market. ✨ Have an advantageous start with our own code generator tool, which will implement thousands of code lines just from the beginning. ✨ Work with experienced Flutter developers that regularly launch products to the markets for businesses like McDonald’s or Here. ✨ Achieve the best time-to-market using Agile methodology My clients have a LOT to say about me: ✅ ” They helped us propose the product in a scalable and measurable way,” - Guatemalan Fintech CEO with 1.000 new users/month ✅ “They transform our code base into a scalable and maintainable product thanks to its architecture.” - Spanish AirBnB competitor ✅ “With FlutterLab CLI we had a three-month project progress just in the first day!” - TikTok former employee and startup founder Not every business is my client, however. Some signs we might not be a good fit include: ╳ The company is struggling to pay salaries - can’t do that in good conscience. ╳ ”Respect for others” is not a core value - we love working with awesome people we respect ╳ The company doesn’t care about the product, and it thinks that everybody can do it I have worked with big companies like McDonald’s and Abu Dhabi National Found and +30 startups in different industries like Retail, Social Media, SaaS, Mobility, Government Administration, etc. So I’ve got a 360 view from every industry and I know what it takes to generate traction and validate your idea with final users. 🔢 My stats: - >$15 million funding raised in projects I worked in - >100k annual downloads - >25 projects launched - >8 years developing mobile projects - Developing Flutter since its first beta on 2018 🚀 About my company FlutterLab: We are a product-oriented development company oriented in Flutter, where we partner with promising businesses in order to reduce their time-to-market and increase the odds of success. What we look for in a new client: - Open mind, relaxed attitude - Values integrity & relationships - Focused on improving, lets their actions speak louder than words - Knows our minimum scope, and wants the BEST Sound like a fit? Next steps: 📺 Watch my Upwork profile and my work examples 🟢 Click the green ‘Invite to Job’ button in the top right-hand corner 💬 Write me a personalized note including why you think we’re a good fit to work together in your message. Expertise: Social Media, E-commerce, Mobility, Pharma, Healthcare, IoT, Artificial Intelligence, SaaS, Messaging, Accounting, ASO, and hospitality industry.
    Featured Skill Flutter
    Application
    iOS
    Android
    Mobile App
  • $30 hourly

    • 5.0/5
    • (3 jobs)
    ✅ 10 Plus Years of Experience ✅ 30+ project Delivered ✅ Full Stack Developer I am a dedicated all in one guy who can work on transforming your unique ideas into cutting-edge, user-friendly, and high-performance web apps and mobile applications. Tailored Solutions for Every Platform: Whether you're eyeing the iOS or Android market, or both, I specializes in creating cross-platform and native applications. Skills in which I consider my self as an experience guys are: - Web Design - Web Development - WordPress Development - WordPress Plugins - PHP Development - PHP Frameworks / Laravel - Database Management - Web Deployment - Server Management - Mobile Apps Native - Hybrid Mobile Apps Tech Stacks includes: - PHP - Python - MySQL - NodeJS with ExpressJS - ReactJS - VueJS - NextJS - Angular - React Native - MongoDB - Dart with Flutter
    Featured Skill Flutter
    Swift
    Native App Development
    Hybrid App Development
    Artificial Intelligence
    Python
    Laravel
    Quality Assurance
    Figma
    Mobile App Development
    Mobile App Design
    iOS Development
    Android
    WordPress
    React Native
  • $100 hourly

    • 0.0/5
    • (0 jobs)
    Help people get to know you at a glance. What work do you do best? Tell them clearly, using paragraphs or bullet points. You can always edit later; just make sure you proofread now
    Featured Skill Flutter
    Web Application
    Web Development
    iOS Development
    App Development
    Android App Development
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    iOS developer with 14 years of experience designing and developing mobile apps. Proficient in Swift frameworks including UIKit, Core Animation, SwiftUI, and SnapKit. I write clean and testable code that follows best practices and design patterns such as MVVM and VIPER. Excellent debugging and troubleshooting skills, with a focus on user experience. Knowledgeable in Agile methodologies and working with cross-functional teams.
    Featured Skill Flutter
    Android
    Swift
    iOS
  • $30 hourly

    • 5.0/5
    • (2 jobs)
    Experienced Mobile App Engineer specializing in iOS, Android, Flutter, and React Native. I build high-performance, scalable, and user-friendly apps. ✅ Cross-platform & Native Development (Flutter, React Native, Swift, Kotlin) ✅ AI-Powered Apps (ChatGPT, OpenAI, GPT-3.5 turbo, GPT-4) ✅ Backend & API Integration (Firebase, Supabase, Node.js) ✅ UI/UX Optimization (Animations, Custom Components, Performance Tuning) I have successfully built dozens of apps for startups and enterprises, delivering clean code, smooth performance, and great user experiences. Let’s build something amazing! 🚀
    Featured Skill Flutter
    Mobile App
    iOS Development
    REST API
    QR & Barcode Scanner
    API Integration
    iOS
    Mobile App Development
    Android
    Expo.io
    Android App Development
    React Native
    FlutterFlow
    Dart
  • $38 hourly

    • 0.0/5
    • (0 jobs)
    I am a passionate and experienced Senior Mobile Developer, specializing in Flutter. Over the past several years, I have honed my skills in building high-performance, user-centric mobile applications that deliver seamless user experiences. My career includes roles in innovative companies like Bit2Me, where I improved trading app functionalities, and Accenture, where I served as a Flutter Business & Integration Architect Specialist. What I Do Best: Mobile App Development: Expert in creating and optimizing apps for iOS and Android, with a strong focus on performance and scalability. Flutter Expertise: Skilled in building cross-platform solutions that reduce development time while maintaining high-quality standards. Real-Time Operations: Proficient in developing features like cryptocurrency calculators, real-time trading operations, and data-driven dashboards. Backend Integration: Deep knowledge of integrating apps with robust backend systems and databases (SQL, Oracle PL/SQL). Legacy Tech Modernization: Experienced in transitioning projects from older technologies like C, C#, and Delphi into modern frameworks. Why Work With Me: Proven ability to deliver high-quality solutions under tight deadlines. Strong technical background, paired with creativity and a problem-solving mindset. A team player who thrives in collaborative environments and contributes to achieving shared goals. When I’m not coding, you’ll find me spending quality time with my family or indulging in my love for sports and motorsport. I bring this same energy and dedication to every project I take on. Let’s build something amazing together! 🚀
    Featured Skill Flutter
    Firebase
    Firebase Cloud Firestore
    Web Application
    Mobile App Development
    Mobile App
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    Hi👋 I'm Mikhail. I'm a software engineer with primary focus on developing web services. My main specialization is frontend, but I can do full cycle of development, from writing frontend and backend parts to infrastructure setup. * 9+ years of software engineering experience. * 6+ years of experience in frontend. * Good understanding of UI/UX design. * Strong skills for troubleshooting complex issues .
    Featured Skill Flutter
    App Development
    Web Application
    Web Development
    FastAPI
    Django
    Python
    Dart
    React Native
    React
    TypeScript
    JavaScript
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    Skills and Expertise: ⭐️ Flutterflow MVP apps ⭐️ Custom Flutter widgets, Cloud Functions (GCP) ⭐️ REST API integrations ⭐️ Firebase, Supabase ⭐️ AI features (OpenAI) ⭐️ N8N automation, webhooks ⭐️ Stripe, ZohoCRM, Whatsapp API ⭐️ Xano, Weweb, Mapbox, RevenueCat Focus Industries: ✔️ Healthcare, Fitness, Mental Health ✔️ EdTech, Tutoring, LMS ✔️ Crypto, Web3, Blockchain ✔️ SaaS, marketplaces Services Offered: 💎 Mobile apps (Flutter/Dart) 💎 UI/UX design for mobile apps 💎 Webflow landing pages 💎 SaaS and web apps with complex backends 💎 AI-integrated features and chatbots 💎 Figma-to-Webflow conversion
    Featured Skill Flutter
    Product Development
    App Development
    Dart
    Firebase
    Supabase
    Mobile App Development
    FlutterFlow
  • $30 hourly

    • 5.0/5
    • (6 jobs)
    With more than 20 years of experience in the field, I am capable of executing your projects with great quality and competitive prices. I have been working as full stack developer with my own company for more than fifteen years, and I can take care of projects from end to end, delivering excellent results. I have collaborated with many important companies worldwide, creating full websites , online shops, mobile applications and backend development. I am up to date in the latest technologies (vue.js, react...) but also in classic ones such as Python and PHP.
    Featured Skill Flutter
    HTML
    Bubble.io
    Magento
    WordPress
    Kubernetes
    DevOps
    NoSQL Database
    Vue.js
    MySQL
    Dart
    React
    PHP
    Python
    Firebase
    Node.js
    JavaScript
  • $40 hourly

    • 0.0/5
    • (1 job)
    My professional career spans 20 years of diverse experience in software development, covering a broad spectrum of technologies and platforms. I’ve developed websites, web applications, mobile apps, APIs, and desktop applications, delivering solutions that are both robust and user-centric. In recent years, I have focused on modern frameworks and technologies, including Flutter for cross-platform mobile development, Swift for native iOS apps, and React for dynamic and responsive front-end experiences. My backend expertise includes C#, Node.js, Python and databases with mostly PostgreSQL and mongodb. I pride myself on my ability to adapt to new challenges, solve complex problems, and deliver high-quality results. My work is driven by a commitment to precision, thoroughness, and user satisfaction. Whether it’s creating scalable APIs, crafting intuitive user interfaces, or optimizing performance, I bring a comprehensive and detail-oriented approach to every project. I am available for consulting, software development, testing/debugging, and other services, ranging from short-term engagements to long-term collaborations.
    Featured Skill Flutter
    FastAPI
    Python
    Angular
    Web Development
    REST API
    API Development
    Mobile App
    Oracle
    PostgreSQL
    Database
    Swift
    React
    .NET Framework
    C#
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Top cities for Flutter Developers in Spain

Show more