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based on 8,786 client reviews
  • US$40 hourly
    Welcome to my profile. I am expirienced Front-End Developer, passionate about Angular 2+ and have good techincal expertise in various domain areas - from EV charging and Advertising Services to Real Esate and Educational platforms. Most of my projects are custom business automation solutions built from scratch. Invite me for an interview, if you need someone both creative and tech-savvy to craft a sleek Frontend functionality for your website or web app. Tech Stack: - TypeScript/JavaScript - Angular 2+, Angular Material, NGRX, NGXS, Angular Universal, RxJS - Unit testing: Jasmine, Jest, Karma - E2E testing: Protractor - CSS frameworks: TailwindCSS, Bootstrap - HTML, CSS, SCSS, Pug - WebPack, Gulp - Firebase, MongoDB - Git In addition to the above, I have extensive code review and refactoring skills. Please, feel free to contact and discuss your project details!
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    Jade Pug
    TypeScript
    JavaScript
    HTML
    webpack
    jQuery
    Angular
    CSS
    RxJS
  • US$80 hourly
    Your destination for expert data analytics and strategic product management solutions. 🎯. With over a decade in software engineering and product management, I am not just a consultant; I am your strategic partner in shaping the data infrastructure and product roadmap that drive results 📈. Officially partnered with Mixpanel, Segment, and Google Analytics, my service suite is crafted for companies seeking to not only track data but to capitalize on it. Services: - Segment Implementation: Tailored data infrastructure setup for nuanced product and marketing analytics 📊. - Product Analytics Mastery: With Mixpanel, I turn user interactions into actionable insights 🧠. - Google Ecosystem Expertise: From Analytics to Tag Manager, I ensure you leverage Google's full potential 🌐. - Product Development Leadership: Guiding MVP development with an eye on key product metrics 🔑. What I Bring to Your Business: ✔️ Data Infrastructure Configuration: Seamless integration with Segment for a robust analytics foundation 🛠️. ✔️ Professional Tracking Plan Development: Crafting bespoke tracking strategies for comprehensive data capture 📝. ✔️ Product Initiative Oversight: Steering product roadmaps with data-driven precision 🧭. ✔️ Comprehensive Tracking & Analysis: Utilizing industry-leading tools from Google Analytics to Mixpanel for a 360-degree view of customer behavior 👀. ✔️ Mobile Attribution Mastery: Partnering with Adjust, Branch, and Appsflyer for accurate campaign attribution 📱. ✔️ Heatmap Insights: Leveraging Hotjar and Microsoft Clarity for visual behavior analytics 🔥. ✔️ Customer Engagement Optimization: Enhancing user interaction with tools like Intercom 💬. ✔️ Automated Marketing Campaigns: Maximizing reach and conversion through targeted ads on Facebook, Instagram, and Twitter 🎯. ✔️ Advanced Tracking Configurations: - SaaS, B2B, and B2C app tracking 📲 - Single Page Application tracking for React/Angular ⚛️ - Cross-domain and subdomain tracking strategies 🔗 - Conversions and revenue tracking for all major ad platforms 💸 - Precision event and iframe tracking 🖱️ - Goal funnels, custom reports, and dashboard creations for data at a glance 📊. Conclusion: Your business isn't just another account. It's the next success story 🌟. Let's build it together with data-driven decisions that not only reflect your current status but pave the way for future growth. Contact me now to transform your data into your most valuable asset 💼.
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    Intercom
    Customer.io
    Hotjar
    Google Tag Manager
    Mixpanel
    Product Development
    Product Discovery
    Google Analytics
    Product Analytics
    Product Management
    Product Roadmap
    Data Visualization
    Product Requirements Document
    Amplitude
  • US$60 hourly
    I am an iOS developer, with an experience of over 8 years in implementing multiple projects at the companies I have worked at and a couple freelancing projects. I have developed projects from scratch as well as take over/continue development for projects that were already in progress. I have worked with the following technologies: SwiftUI, Combine, Firebase, Realm, Location, Motion, Maps, push notifications, vpn, Google SDKs, Facebook SDK, keychain, Alamofire, Core Data & others.
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    In-App Purchases
    Core Data
    iOS SDK
    Camera
    iOS Development
    User Authentication
    Location Framework
    Core Location
    Apple Xcode
    iOS
    API Integration
    Swift
    Google Maps
  • US$100 hourly
    I am a Senior Web and Mobile Developer with full-stack application development experience focused on open source technologies and frameworks My experience encompasses building responsive web sites using modern web frameworks; cross platform mobile application development for enterprise and startups, I also have extensive experience in system integration with web services and databases. Having worked on a wide range of projects across multiple industries including financial services, pharmaceuticals, transportation and manufacturing, I am equally comfortable working as an individual and as part of a team. I aim to work closely with my clients to ensure the best possible solution is delivered. I am flexible with working hours and look forward to hearing from you to discuss any upcoming projects and requirements.
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    Redux
    Node.js
    CI/CD
    Angular
    Ionic Framework
    React
    Python
    SQL
    JavaScript
    HTML5
    CSS 3
    TypeScript
  • US$100 hourly
    🥇 The Top 1% of Talent (Expert Vetted) - Extremely Reliable and Communicative 🛠️ Specializing in Mobile App Development | Flutter & Swift | iOS and Android 🇺🇸 Honored as a Top Mobile App Developer for hire in the United States from 2020-2023. 🏆 Award Winning Mobile App Developer: previous app featured on Apple's List of Best Language Learning Apps. 📰 Featured on Business Insider for my innovative contributions to mobile app development on Upwork. I've had the privilege of propelling clients to significant milestones, including achieving $2M in Annual Recurring Revenue (ARR). Some notable successes include: - A restaurant subscription app reaching $100K+ Monthly Recurring Revenue (MRR) - A fitness community app achieving $1.5M+ ARR. ⭐️ Client Testimonials: "Michael is a gem in the world of mobile app development..." "Among the top 3 developers I've worked with over the past three years..." "A quality developer and a quality human being..." Upwork Stats: 🏅 Top 1% of Mobile Developers 🏅 Top 5% of iOS Developers 🏅 Top 5% of Firebase Developers 🏅 Top 10% of Swift Developers 🎓 Proud Michigan State University Graduate with a Bachelor's Degree in Computer Science. With a solid eight-year trajectory as a Mobile App Developer, I've honed my skills across a plethora of projects that span iOS and Android platforms, utilizing Flutter and Swift to create high-impact applications. My forte lies in converting ideas into digital realities that propel businesses forward. From crafting engaging user interfaces to optimizing backend processes, my holistic approach ensures a robust and scalable app solution. I thrive in various development scenarios, whether its working with a team to deliver a project on a tight deadline or building an application from scratch all on my own. My experience extends to working with startups that have secured significant venture capital funding, as well as established enterprises aiming to expand their digital footprint. 🌟 Why Choose Me: Client Satisfaction: My reviews reflect the genuine value I provide. Effective Communication: I prioritize prompt and sincere interactions to ensure project fluidity. Mastery: I strive for flawless, visually appealing apps worthy of portfolio inclusion. 😁 Eager to collaborate! Whether you're a startup aiming to elevate your product or an established enterprise looking to scale, I'm here to help. Let’s kickstart our partnership with a complimentary 15-30 minute discussion to blueprint your pathway to success.
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    AI Development
    App Feature Development
    iPad App Development
    Social Networking Development
    App Development
    Back-End Development
    Front-End Development
    Full-Stack Development
    Android App Development
    Amazon Web Services
    Swift
    Flutter
    iOS Development
    Mobile App Development
  • US$60 hourly
    🏆 Top Rated Plus Developer on Upwork 🏆 "A Senior Mobile Developer specialising in Flutter & Firebase Development." About Me 🔹 5+ years experience in Mobile Development (Android (Java) & Flutter) 🔹 4+ years experience using Flutter (Since Alpha Stages) 🔹 Led development for multiple startups and projects of various sizes 🔹 Founded my own tech startups (Very familiar with the startup lifecycle and mindset) 🔹 Helped startups translate business requirements and ideas into fully functional software 🔹 Co-founder of the Colombo Flutter Community, Sri Lanka's only Flutter Community 🔹 Known for building scalable and maintainable software that businesses can rely on to grow. 🔹 Guest Lecturer on Flutter Development for a notable University here in Sri Lanka. 🔹 First Class Honours in BEng (Hons) Software Engineering @ University of Westminster My Skills 🔹 Flutter & Dart: Flutter Mobile, Desktop and Web 🔹 Native Android (Java) 🔹 Responsive mobile design 🔹 Riverpod and BloC State management 🔹 Well versed using the Firebase Suite (Firestore, Authentication, Storage, Cloud Functions, Crashlytics, Push Notifications etc..) 🔹 Capable of planning and creating robust architectures of any size that can scale! 🔹 Git 🔹 CI/CD using Codemagic, Github Actions and Fastlane 🔹 Flutter training & mentorship 🔹 5+ live Flutter apps in App Store and Play Store combined 🔹 2 live web applications using Flutter Web 🔹 Development lifecycle, sprint and roadmap planning 🔹 Sprint leading Why me? 🔹 Discussed, planned, developed and shipped apps for startups and SME's all the way up to Governmental bodies (I was a key developer in the COVD-19 tracing app for the Ministry of Health in Sri Lanka) 🔹 Capable of translating business requirements into a roadmap that works for any organisations budget and timeline. 🔹 Apps I've worked on have reached over 50k+ downloads. 🔹 Top Rated Plus Freelancer on Upwork 🔹 Specialises in long-term contracts with very happy clients (Check my reviews). 🔹 Great team lead and mentor, have lead multiple developers and teams to deliver great apps on budget and on time. 🔹 Known for building maintainable and scalable software! Thanks for reaching the end of my long overview. Do reach out to see how we can work together.
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    Android App Development
    Cloud Computing
    MySQL
    Flutter
    Database
    Mobile UI Design
    iOS
    Android
  • US$20 hourly
    I am a mobile developer using react native technology, I have experience with payments with stripe and similar, experience building Expo apps, bare react native applications and eject from Expo to bare react-native project, please take a look to my previous experience with Upwork jobs
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    Web Development
    RESTful API
    Ruby on Rails
    Mobile Development Framework
    Docker Compose
    Google Cloud Platform
    Amazon Web Services
    Android
    JavaScript
    React Native
    React
  • US$70 hourly
    Software Engineer, with extensive experience developing mobile and web applications from the ground up. Comfortable working on all aspects of the full-stack, from UI design and implementation on the front-end to API and database integration and development on the back-end. Back-end development specialities include API integration and development with GraphQL, RestAPIs, and authentication providers. Adept at both developing and maintaining highly scalable database solutions using PostgreSQL, MySQL, SQLite and DynamoDB amongst others. Multiple years of experience working with CMS providers such as WordPress and Strapi developing custom blogging platforms and eCommerce sites. Front-end development specialities include React and React Native development, UI and UX design, and native web development using HTML, CSS, JS and TypeScript. Developing many projects past launch, I have thoroughly studied SEO and ASO, using this to develop applications that are optimized. I have a First-Class Computer Science Degree from the University of St Andrews. Previously, I have worked in the Aerospace & Defence Industry, a sector where bad habits and low-quality code are simply not an option; a mentality that I maintain when working for my own clients. I am a relatively new freelancer, but I have had plenty of experience delivering high-quality software throughout my career. Thank you for taking the time to read this far. Expertise: React and React Native || HTML || CSS || JS || PostgreSQL || DynamoDB || WordPress || Strapi || GraphQL || RestAPI || Postgraphile || React Apollo || AWS Architecture || API Integration || SEO || ASO || Authentication APIs
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    Amazon DynamoDB
    PostgreSQL
    MySQL
    Website Maintenance
    TypeScript
    Web Development
    React
    Node.js
    Next.js
    API Development
    React Native
    HTML
    Android App Development
    JavaScript
    iOS Development
    WordPress
    API Integration
  • US$40 hourly
    With more than 4 years of experience in Unity 3D/2D, I am the most OPTIMAL SOLUTION for your game. I specialize in building interactive 3D & 2D games in most popular and efficient game engine Unity 3D/2D which include: - Cross platform games - Game concept and level designing - Multiplayer integration - Reskin - Ads and in-app purchase - Game optimization - 2D/3D Animation - Graphic Designing I have published several Games on Play Store and App Store. All work is completed by me, so you do not need to worry about your work outsourced to someone else. Maintaining a regular communication is important to me for providing my clients the highest quality of work and 100% satisfaction. As a proof of my experience you can check on my fiverr profile by username razzaq94.
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    WebGL
    AR & VR
    Game Development
    Game Design
    VR Application
    Photon Unity Networking
    Mobile Game
    Online Multiplayer
    Unity
    C#
  • US$60 hourly
    "Rock Solid Skills!! Azamat has amazing development and analytical skills. He is fast, collaborative and mission focused! He is one of those developers, who just understands what you want, quickly." I can help you with your iOS application whether you want to build it from the ground up or you want to add new features/improve it. To provide the best results I implement a high-quality development process from end to end through prototyping, validation, implementation, launch, and further iteration. It's the responsibility of a programmer to provide secure, scalable, maintainable, and bug-free solutions nowadays. Because there is a high demand for complex iOS applications and more and more important parts of our lives connected with our devices. It's a challenging task and I always ensure that I meet these challenges. I am keen on developing my test-driven methodology and strive to keep up to date with my programming skills. Programming is not only my job but also my hobby. I'd be very glad to work with you. ✅ Swift, Objective-C, C, C++ ✅ MVC, MVP, VIPER, MVVM, Clean Architecture ✅ TDD, Clean, maintainable code ✅ Continuous Integration ✅ Agile methodology I graduated from the Ufa State Aviation Technical University in 2010 and then worked as a full-stack web developer. I know the frontend and backend side of the projects. I then started my iOS career by building my own applications, and games following that I worked for a large Multinational company in Russia where I developed complex iOS applications in Objective-C for iPhone/iPad. Presently, I'm an independent iOS engineer and ready to help you. You can find examples of successful projects in my profile. My recent project was a complex app for employment with video profiles. I was responsible for developing an employment app from the ground up. The main challenge was to implement a complex caching/prefetching system for video files. My skill-set: OpenAI API, ChatGPT, Firebase, Twilio, Payonline, Paymobile, card-io, Apache​ Thrift​, CircleCI, Bitrise, Git, CI/CD, Passbook, Core Data, In-app purchases, Sprite-Kit, Touch ID, Deep links, Branch, Mixpanel, TwitterSDK, FacebookSDK, XML/JSON, REST, H.264, FFMPEG, Wowza, RTSP, Linea Pro, Quickblox, iBeacon, Swift5.2, SwiftUI, Combine, Neumorphic design, Neumorphism, iOS Development, Swift, Objective-C, C/C++, JavaScript, Xcode. CoreML, Vision I look forward to working with you. Feel free to contact me for more details.
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    Problem Solving
    iOS Development
    Agile Software Development
    RESTful API
    Objective-C
    Continuous Integration
    Swift
    Stripe
    In-App Purchases
    Business with 1-9 Employees
    GraphQL
    Unit Testing
    iOS
    Apple Xcode
  • US$30 hourly
    I am a professional Unity Developer with 7+ years of game development experience. Expert with handling APIs, integrating frameworks and plugins and implementing monetisation tools. Do you want to create a 2D/3D unity game and make it work on cross-platforms? Let me help you to turn your game idea into a reality. Expertise on; - Database Management i.e Firebase, Playfab,NodeJS, MongoDB - Multiplayer Games i.e Photon, Firebase,NodeJS - Bug solving - Scripting & Re-skinning - Native Android & iOS plugins for unity - Virtual & Augmented Reality - 2D & 3D games - Asset Bundles & Addressable (Cloud Content Delivery) - Cloud builds & CI/CD pipelines for unity - Exporting & Publishing games to Appstore(iPhone,iPads,iPods or WatchOS), playstore, MacOS or Windows Special offer - Send (publish) Unity MacOS game build to Mac App Store - Game monetisation (NFT, in ads, or app purchase) - Online/Multiplayer Game programming with custom Nodejs Backend
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    Mobile App Development
    Game UI/UX Design
    Photon Unity Networking
    Game Development
    In-Game Advertising
    Bug Fix
    Mobile Game
    Android
    Push Notifications
    Unity
    JavaScript
    C#
    Online Multiplayer
    Python
  • US$35 hourly
    🏆 TOP RATED PLUS🏆 in FLUTTER DEVELOPMENT "So it will be!" - that's how I like to say to my clients every time they ask me if I can get the work done on time, never fails. Hi there, thank you for checking out my profile, my name is Huy, I am a Mobile developer in Viet Nam, if you are looking for someone to respond fast, learn and adapt fast, and have good communication. Look no further!. As a self-learner and a technology enthusiast, I always offer the best quality apps to my clients, using the below skills: ✅ Flutter, dart, BLoC, Provider, Riverpod ✅ Beacon/Bluetooth/sensor connect ✅ AWS Appsync Graphql, Graphql apollo API, REST. ✅ Amazon Amplify, Firebase (authentication, database, analytics, notifications and etc.) ✅ SDK (Maps, Ads, Youtube, In-app Billing, Telematic SDK and etc.) ✅ Online payments (Stripe, Revenue Cat) ✅ Social Media integration (Facebook, Twitter, Instagram, G+, Youtube) ✅ App marketing and ads integration (Google Ads, App Flyers, UX Cam) ✅ Fully automated deployment pipeline (bitrise.io, Fastlane, Azure devops, github action) I may not be one of the best Flutter developers on the market yet, but my communication skill is top-notch. I will always be the developer that always asks the right question before work and offers the right solutions, and is 100% transparent about my work. I am interested in both tech and business development. I am only available for 6-month+ projects, my focus is to support potential business.
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    Desktop Application
    CI/CD
    Bluetooth Beacon
    Amazon Cognito
    AWS AppSync
    AWS CodePipeline
    Push Notifications
    Dart
    Mobile App Development
    GraphQL
    Flutter
  • US$30 hourly
    For twelve years, I work as an iOS Developer. During this time, I have completed many projects. More than half of my projects are client applications for servers. I understand how such applications are arranged. How to receive the data from a service using a REST API. I know how to parse a service response and display it in an app and create offline mode. I have experience with video and audio. I can combine video files, put sound on them, change this sound, add text or image to the resulting video. I worked with video and audio players and recorders. I worked with Maps. I can display places on this map, present custom callouts on it, and show routes from a user location to these places. I also can work with the CoreData framework. I know how to get data from a database on a thread and display it to a user without an interface freezing. In 2017 I decided to create some apps on my own. My friend is a radiologist, and he shared with me his idea about a medicine app. We have created this app and published it to AppStore. You can find it if you search for RadAnatomy and RadAnatomyLite. 50% of the proceeds I transfer to my friend. During the work on this app I put myself in the place of customers and gain the priceless experience how an idea is embodied to the app. I can use Photoshop and Sketch, and you do not need to slice images. Just provide me a file with a design. The rest I will do by myself. I pay attention to pixel-perfect and custom fonts because I respect designer work.
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    macOS
    Mac OS App Development
    Apple Xcode
    RxSwift
    iOS Development
    iOS
    Objective-C
    Swift
  • US$55 hourly
    London-based Developer with over a decade of experience, using Test Driven Development to deliver Apps that are streamlined and lag-free. I use my extensive background to deliver results for both iOS and Android using a range of languages including Swift, React-Native (Typescript) and Flutter. I'm a freelance developer with a deep experience of creating iOS and Mac apps. I want to build your dreams...! I'm a full-stack developer. I have industry experience from writing proven mobile (iOS) and desktop apps (Mac). I also have extensive experience of writing scale-able Backends. I have top-notch skills in Swift, Objective-C, React Native and Python. I can build what you want. I'm based in London, UK. As a UK developer I have excellent English skills. I also studied at a UK university. Finally, I benefit from the vibrant developer community in London. Skills ✅ I have used Swift professionally since it's introduction in 2014, including RxSwift and SwiftUI. ✅ Eight years of Objective-C experience. ✅ Deep experience of React-Native. I can produce pixel-perfect UI's on Android and iOS. ✅ Experience with dealing with Apple and adding Apps to the App store. ✅ Extensive knowledge of creating Mac Desktop software installers, including PackageMaker / Packages / Pkgbuild / Pkg as well as making Dmg packages. I can also help with notarization issues. ✅ If you a need UI/Wizard based installer (pkg) then talk to me as I have written several for installing software onto Macs. These use Installer Plugins to work their magic. ✅ Actual professional experience of using Flutter for Client projects. ✅ Long experience of taking on existing projects and maintaining, fixing bugs and add new features to them. ✅ Specialities including VPN (OpenVPN, iKev2, Network Extensions), OpenCV, and adding animation, including SpriteKit. ✅ Latest projects include Fintech with Plaid / Yapily / Token, integrating Zendesk chat solutions into iOS / React Apps. Also advanced visual processing with OpenCV and Machine Learning with CoreML. ✅ Other recent projects have included P2P mesh transfers on Android, and Crypto Payments with Web3/WalletConnect on Swift, and video calling Apps using WebRTC (React-Native / Swift). ✅ Talk to me about Clover POS Development with Android (Java / Kotlin). ✅ ChatGPT Integration with iOS, React-Native / Expo or MacOS. ✅ Bidlogix / BidJS integrations for Auction Houses. ✅ Electron Apps Packaging and Notarisation / Notarising. Keywords for Search Engines • iOS, Android, Flutter, React Native, iPhone, Ipad, Application, Mobile App Developer, Full time Freelancer, Clover POS, IPhone app, Swift, Dart, Kotlin. Smartphone App, Mobile App Development, Android App Development, iOS Development, Native iOS, Native Android, Flutter/Dart, Expert Swift/iOS developer, Firebase, Electrion
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    macOS
    Objective-C
    User Authentication
    Mac OS App Development
    Android App Development
    RESTful Architecture
    In-App Purchases
    iPad App Development
    iOS Development
    Apple Xcode
    Mobile App Development
    React Native
    Swift
  • US$40 hourly
    I'm a Software enthusiast having around 8 years of development experience in Javascript and PHP. I started my journey by creating web applications and then I got used to working with other platforms like mobile and desktop. I'm also contributing to open-source libraries. In fact, I'm part of a few out there. I have a strong base in software development with an outstanding record in my curricula. In the past few years, I went through many technical challenges with remarkable performance. I'm pretty stronger in quickly getting up and running with new technologies, completed around 50+ projects with development expertise. I have vast experience in working with version control systems, specifically BitBucket and Git, Deployment pipes, Jenkins, and Travis CI. So far, I worked with Laravel, express.js, feather.js, socket.io, Vue.js, React.js, and React Native Web as a web stack. On the other hand in mobile, I am using Native Android, IOS, Flutter and React Native to develop applications. I'm addicted to clean workflow using testing frameworks like Karma, Mocha, and Tape. I'm also a part of a team creating a cross-platform desktop application in Electron.js. I'm having sharp skills in database systems including MySQL, NoSQL databases, and Graph databases like OrientDB and Neo4j. I write clean and maintainable code, build a foundation of projects and keep my clients updated about emerging technologies. I believe in "Growing up every day and starting with a fresh mind to let others grow up".
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    Electron
    React Native
    Desktop Application
    Mobile App Development
    Laravel
    ExpressJS
    Vue.js
    Socket.io
    React
    Chat & Messaging Software
    Web Application
    Node.js
  • US$75 hourly
    ‼️FREE consultation is provided! (see below). I am a motivated and dependable full stack software developer graduated from UC Berkeley🐻 with double major in Applied Mathematics and Economics. I have comprehensive skills in multiple technologies (listed at the end of description). 🚀🚀🚀 As a fast and dedicated explorer with a growth mindset, I am constantly looking to advance myself and expand my technical knowledge. 💪💪💪 With many years of experience in working with clients and leading teams from various backgrounds, I put stress on responsibility, communication, and efficiency. 💻💻💻 Previously, I worked as a full-stack software engineer team lead at Camping World, which is a publicly traded company, and as a lead technical teaching assistant at Hack Reactor. 🧩🧩🧩 *** FREE consultation service: I am more than happy to share my years of experience in helping clients build web/mobile applications from the ground up, including but not limited to, setting up MVP, choosing tech stack, scoping out practical plan/timeline, estimating budget, and more. Please do not hesitate to contact me for this free service and we can together turn your idea into reality.*** ==================== • Front End: JavaScript | TypeScript | HTML5 | CSS3 | Tailwind CSS | React | React-Native | Angular | Vue.js | jQuery | Next.js | Ionic • Back End: Node.js | NestJS | Python | Django | MongoDB | MySQL | PostgreSQL | ORM | GraphQL • API Integrations: ChatGPT | Stripe | Azure | Google | Zoom | and more... • DevOps: Amazon Web Services (AWS) | Firebase/GCP(Google Cloud Platform) | Azure | Docker • Testing: Mocha | Chai | Jest • Developer Tools: Git | npm | Webpack | Babel | Agile Methodology | TDD | Nginx • Design: Adobe XD | Figma | Adobe Photoshop | Illustrator
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    ChatGPT
    AWS Lambda
    WordPress
    Database
    JavaScript
    Amazon EC2
    ExpressJS
    Angular
    React Native
    RESTful API
    CSS 3
    AWS Amplify
    React
    Node.js
  • US$36 hourly
    With a career spanning 21+ years of web-based application developments, incl. 9+ years of building Firebase & Google Cloud apps, I have architected and developed full-stack apps using the latest stacks incl. Angular, React/Next.js, Firestore, Cloud Functions, App Engine, MySQL, Node.js. My expertise in cloud based app backends has been ably supported by knowledge and experience of working in following technologies in commercial applications - 1. Google Cloud Platform expertise - Google App Engine, Compute Engine, Cloud Storage, Cloud Functions, Cloud SQL and Cloud Datastore. 2. Firebase in-depth expertise in implementation and integration incl. Firebase Authentication, Cloud Functions, Realtime Database. Front-end experience that helps me build better APIs for consuming UIs(web/android/ios) - 4. MEAN Stack - Angular 10+, Node.js, TypeScript/EcmaScript 6. Please feel free to message me to discuss project details.
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    BigQuery
    Google App Engine
    NoSQL Database
    Google Cloud Platform
    Angular
    React
    ExpressJS
    Node.js
    Firebase Realtime Database
    JavaScript
    Firebase Cloud Firestore
    TypeScript
  • US$25 hourly
    Since you're here, I'm sure you're looking for EXTRAORDINARY RESULTS. And that's exactly what I and my team can do for you. I'm offering you a No-Obligation FREE consultation regarding your project. In my experience, a quick call is the best way to determine if we're a good fit for each other. Invite me, and we'll schedule an interview. Let's Do IT! If you are looking to hire: Mobile App Developer & Web App Developer Flutter Developer Hybrid App Developer Fintech App Developer React Native Developer Cross-Platform App Developer iOS Developer Android Developer Backend Developer Front End Developer Firebase Developer Flutter + Firebase Developer React Native + Firebase Developer MERN Stack Developer MEAN Stack Developer You are at the right place. I and my team can exactly help you with these hiring and developing your dream App. Types of projects I have worked on: - Fintech App - Doctor Appointment Booking App - Babysitter App - Cab Booking App - MarketPlace App - Liquor Delivery App - Grocery Delivery App - Healthcare App - Ride Sharing App - Food Delivery App - Fitness Apps - Dating App - Money Transfer App - Social Networking App - E-commerce App - IoT App Further, to give you an idea about our process, whether it's Small Maintenance/Bug fixing Work or a Full-Fledged Development Project. Before we start, I will understand your requirement/problem statement. I will take full ownership to help you with the Full Transparency, Idea Validation, Limitations/Risks, Technologies/tools, and Human Resources required to achieve your goals and complete the project successfully. Our process includes: 1. Project Discovery: In this, we will schedule a call or chat session to understand the problem statement or the business/technology problem, you are trying to solve. We will provide you with free consulting and guide you on the requirement refinement, Business Model, Limitations, Ball-Bark Estimations, Our Project Development Methodology/Tools/Technologies, and Team, etc. 2. Technical Solution & Project Scope: Since now your most of the requirement is captured and we have an idea of what you are looking at. Based on our discussion we will provide you with: ★ Detailed scope of work ★ Technical Details ★ Timeliness & Cost Breakdown ★ Project Milestones ★ Legal Agreement 3. Project Execution: Once the project is finalized and kickoff is done we will start the project execution work using Agile/Scrum methodology. Our project execution steps include: ★ Wireframing & UI/UX Design Phase: As part of this process, our clients work with our award-winning UI/UX design team to bring the web/App concept to live. ★ Development (Coding) Phase: We share the regular web Links or builds for you to see the progress of your website and Mobile App projects. ★ Quality Assurance Phase includes UI/UX, Beta, and User Acceptance Testing. ★ Deployment and Maintenance: Once the app is live we will provide you free 60 Days Maintenance.
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    Web Application
    Java
    Python
    Kotlin
    PHP
    Android App Development
    Mobile App Development
    iOS
    iOS Development
    Android
    React Native
    Swift
    Flutter
    React
    Smartphone
  • US$175 hourly
    As a seasoned developer with over 20 years of experience, I bring a wealth of knowledge and expertise to every project I work on. Whether it's building web and mobile apps with Ionic Framework, designing IoT systems, or developing cutting-edge AI applications, I thrive on solving complex problems and delivering top-notch work. My recent experience as Chief Architect and AI Engineer for a successful content generation SaaS startup application has allowed me to hone my skills in natural language processing, machine learning, and data analytics. Prior to that, I spent several years developing progressive web and native apps with Ionic Framework, as well as designing and implementing IoT solutions for a variety of industries. One of my favorite things about development is the challenge of finding creative solutions to complex problems. I approach every project with a curious and open mind, always looking for ways to push the boundaries and exceed expectations. Let's work together to tackle your toughest challenges and create something truly remarkable.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Azure OpenAI Service
    OpenAI Codex
    Prompt Engineering
    AI Chatbot
    Mobile App Design
    Web Design
    Python
    Node.js
    Ionic Framework
    Angular
  • US$75 hourly
    I am a Google Developer Expert in Flutter and Dart, one of 90+ such people that are recognized by Google. I have a Ph.D. in Computer Science from Washington University in St. Louis. I worked as a Software Developer Intern at Google Irvine and had the option to continue to work there. I chose to come back to my beautiful hometown, Izmir, Turkey. I'm an Assistant Professor, teaching Mobile App Development with Flutter and Firebase, Human-Computer Interaction and Game Development with Unity. I provide R&D consulting services to local companies. I was also a remote consultant for Carnegie Mellon University. I have been programming for 25+ years and have a solid understanding of most systems. I try to contribute to libraries that I use. Please check my Github account for my contributions, mostly related to Dart, Flutter and Firebase. I recently founded my own company and have access to high quality local talent. I plan to scale up our operations in the near future. I love a good challenge. Send me your tricky app issues!
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Game Development
    AngularDart
    Android SDK
    C#
    Dart
    Flutter
    Node.js
    Python
  • US$29 hourly
    ✅. 6+ Experienced (Flutter | Android | IOS | Web). ✅. Full-time available with any timezone. ✅. Recommended by clients. In 6+ years experience in mobile application development, I worked as Android developer in initial 2 years. Then for past 4 years, I have been working as Flutter developer. I am having good skills on Firebase. I can build Firebase functions using Javascript, and can do work in iOS also for any platform specific work. I have worked on more than 30 projects (Chat, Social media, Video calling, Health monitor, Fitness watch, School management, Office management, e-Commerce, etc.) - Teamwork and good performance as a member and as a leader. - Have experience in BLoC & Cubit, RiverPod, Provider, GetX, and State Rebuilder. - I can do platform-specific implementation easily. I have experience in Android Java, Swift, and Objective-C. - I know PlayStore and AppStore distribution, Flutter web deployment in Firebase. Tools: Jira, Trello, Upwork, Git, Github, Bitbucket, IntelliJ IDEA, Android Studio. ==== Flutter Development Skills ==== • Flutter platform-specific integration (Android with java and iOS with objective-c and Swift). • Firebase auth. • Firebase chat. • Firebase push notifications. • Socket-based chat. • Get Stream. • WebRTC. • Payment gateway integrations. • Flutter Google Map integrations. • Local database (SQLite, Hive, File, and Shared preference). • State management. • Memory management. • API integrations. • Localisations. • Responsive and great UI integrations. • Animations. Work ethics: • Correct time management • Experience in project management • High Scalability of your idea • Quality of the final product • Fulfilment of actual need/demand and maintain long-term client relationship • Customer time-to-value after delivery (Consumability) Programming is not only my job but also my passion. I enjoy facing new challenges and helping clients to build their products.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    API Integration
    Java
    WebRTC
    Flutter
    Ecommerce Website Development
    Chat & Messaging Software
    Flutter Stack
    Dart
    Objective-C
    Swift
    Hybrid App Development
    Google Maps
    Desktop Application
    Mobile App Development
  • US$20 hourly
    Node(Express), Firebase function | Socket IO (Real-time chat) | React, Redux, Storybook, Style Component | React native, Expo | AngularJS | MySql, MongoDB, Firebase I am a full stack developer (Designer and Developer) with good expertise in the below technologies. Technologies: - HTML5 - CSS 6 - Javascript - Angular - Node - GraphQL - ROR - React js, Redux - React Native - Android - iOS - Git I combine these technologies every day to imagine, draw, and build amazing web sites web applications and mobile applications, from the ground up to final deployment. I work on the following types of application: - Mobile ERP solution - E-commerce app - Market Place app - Social media integration - Analytics reports integration - Custom API integration - Chat application. - Education App - Booking App ⮩ Reasons to hire me ✓ I have over 10 years of commercial experience - last 5 years as a freelancer on this platform. You can review the work history on my profile. ✓ I am always learning and following latest development standards. I provide high quality and well tested products. ✓ I provide realistic deadlines that I always met. ✓ I work on both Mac and Windows. I also test my work on iPhone and Android phones. This way you can be sure that your website or app shall display properly on any device. ✓ I am flexible with my working hours, because I'm a fulltime freelancer. ✓ I am available on daily basis. You will know the current status of the job because I contact you with the updates frequently. ✓ I believe good communication is the key to successful project. That's why I always respond promptly. You may contact me UpWork Messages. ⮩ Please Note I maybe have 10+ jobs in progress, because I provide support and long term cooperation, therefore this is not reflecting my actual work-load. I am an enthusiastic programmer. and believe in clean code, testing, and reading the manual. Making cool software makes me giddy, and I am deeply moved every time and write code that can be used by others. I am very passionate about building apps and I have more than 5 years of experience with React Native, React.js, Objective-C, and Node.js. I am able to deliver great user experiences for the web, iOS, and Android and having good clients as well. I have the confidence to reach my clients needs, with my quality and efficiency in Work. I believe in a long-term association, therefore I believe to deliver quality work that makes a strong bonding between me and my clients.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    React Native
    Socket.io
    Android
    AWS Lambda
    Agile Software Development
    Firebase Cloud Firestore
    GraphQL
    PHP
    JavaScript
    AWS Amplify
    HTML5
    Node.js
    React
    CSS 3
  • US$20 hourly
    I have a substantial learning curve that allows me to continue other developer jobs or unfinished projects.  Familiar with backend Api using firebase or JSON REST API. Experienced worked both individually or in a team using Jira, Notion, CI/CD tools, and Github. Feature Developed in Flutter (Using various state management bloc, provider, stacked): 1. Data stream integrations from firebase using auth, functions, configs, firestore, and storage 2. Stripe Payment integrations (CC, grabpay) 3. Popular Indonesia payment gateway (midtrans to support gopay/shopee) 4. Chat Feature 5. Online Shopping Feature 6. Social media feature (comments, like share, follow) 7. Twillio chat and video room 8. Geolocation and map feature 9. Image manipulation 10. Real-time chat and voice using the agora 11. In APP purchase I have developed some production Apps. You can see my work detail in the portfolio.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Android App Development
    iOS Development
    Mobile App Development
    In-App Purchases
    User Authentication
    Android
    Hybrid App Development
    Flutter
    Agile Software Development
    RESTful API
    Dart
    JavaScript
    CSS
    jQuery
  • US$25 hourly
    Senior mobile application developer having 8+ years of outstanding work experience in iOS development for iPhone/iPad/Mac apps using latest native iOS technologies. My experience includes working with most of the popular and modern mobile application development technologies, and among all of them the ones which fall under my liking are Swift, SwiftUI, and Combine. Specialty in the following technical Skills: * Swift, SwiftUI, Objective-C, XCode, Apple’s UIKit, AVFoundation, Accessibility, Quickblox, Socket.io * Core Data, Firebase, Firestore(Cloud functions), Amazon services * Integrating Web Services * MVC/MVVM/MVP/Viper/Clean Swift architectures * Maps and Locations for iOS: Apple Maps experience with MapKit, MapBox, Google Maps, Core Graphics * In-App Purchases, Payment methods (Stripe, PayPal, Apple Pay, Google Pay) * Push Notifications * Database Management * File-handling * Data Synchronization * App Monetization * App Localization * Git and Bit bucket versioning Control * App privacy & Security * Memory Management, Code Quality & App performance tuning Hire me to get your iOS application reach modern standards in hands of a SENIOR.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Mac OS App Development
    macOS
    Socket.io
    Google Maps API
    Mobile App
    iPhone & iPad Apps
    Apple Xcode
    Chat & Messaging Software
    In-App Purchases
    iOS
    Mobile App Development
    iOS Development
    Swift
    Objective-C
  • US$55 hourly
    Top 3% of Upwork - Top Rated Plus | Over 2000 billed hours | 100% Job Success Expert Mobile App Developer | iOS & Flutter | B.S. in Computer Programming 🚀 Startup App Prototyping ⏰ Daily updates 🔥 Firebase | SwiftUI | Flutter 🎓 B.S. in Computer Programming 📱 Mobile app workshops ✏️ Complex mobile UIs 💯 100% Job Success 🇺🇸 Fluent English **** Specifically looking to acquire a Flutter or native project for a start-up app (updated 6/5/24) **** I am experienced for the entire app lifecycle from idea creation, project planning, prototyping, MVP development, debugging, and releasing on the App Store. I communicate extensively and strive to be available for any calls, meetings, or consultations. Feel absolutely free to talk to me about your next sick project 🤙 I try to handpick app/design projects that are interesting and fit my skills well OR challenge me to grow in a new skill! My favorite relationships are long-term relationships with clients. Any amount of time I get you though is perfect if you leave absolutely satisfied! 🌟 Bests 🍻
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Location-Based Service
    High Fidelity Design
    App Feature Development
    API Integration
    iPad App Development
    App Development
    Back-End Development
    Front-End Development
    Full-Stack Development
    Android App Development
    Flutter
    Mobile App Development
    iOS Development
    Swift
  • US$60 hourly
    Senior Full-Stack web engineer with a 11+ years of experience. 💪 Performance | 💻 Responsive | 👌 Pixel Perfect | 🌐 Web App JS | TS | Angular | React | Node.JS | MEAN | MERN | Firebase | AWS
    vsuc_fltilesrefresh_TrophyIcon Firebase
    API
    Figma
    Electron
    NestJS
    Next.js
    HTML5
    JavaScript
    TypeScript
    RxJS
    Angular
    Node.js
    Git
    Web Application
  • US$48 hourly
    ✅ "Julio was hands-down one of the best freelances I've ever had the pleasure of working with." - If you want this level of service, see my profile, this is one of many happy customers. 🚀 Hello, my name is Julio. I'm a full stack developer, my goal it's to make your project a success, proposing solutions and helping my clients to develop a better product. My main experience is with Mobile development using Flutter framework, I aim to develop pixel perfect designs, with great code quality, that's highly maintainable and understandable for any developer, which will save a lot of time and money for my clients. My secondary experience is to develop API's with Django and Django Rest Framework, creating servers for different applications. Some of my Flutter abilities: - State management - (Stacked, Riverpod, Bloc) - Pixel Perfect Design - Firebase integration - Authentication, Cloud Messaging (push notifications), Crashlytics, Analytics, Firestore Database. - MVVM architecture - Stripe - In App Purchases - Sendbird chat - Clean code - Intercom - MixPanel - Segment - Unit tests - Integration tests - CI/CD - Graphql for Flutter - Rest API - 2+ years of programming with Kotlin for Android - Small native sdk(Android and iOS) integration with Flutter (plugin) Some of my Django abilities: - Api development with Django RestFramework - Secure Web Sockets, WSS, with Django-channels ASGI - Realtime database with REDIS - Geo-based database, using POSTGIS - Social authentication, both api and Web App - Stripe - Web Scraping - Reactive web page using VUE.js - Unit tests - Integration tests - CI/CD Experience with: - OpenAI Chat GPT - Machine Learning - Adobe XD - Figma - Sketch - JIRA - Slack - Clickup - Zeplin - Github - Bitbucket I have good experience working remote only, without the need for constant feedback. If creating top quality apps sounds interesting, send me a message and we’ll set up a time to talk. :)
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Software
    Angular
    Android
    Django
    iOS Development
    Dart
    Web Application
    Push Notifications
    Flutter
    Mobile App Development
    iOS
    ChatGPT
    Machine Learning
    Python
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How to Hire Top Firebase Developers

How to hire Firebase developers

Want to build a mobile app? A Firebase developer can help you quickly set up a robust cloud-based back end for your mobile app.

So how do you hire Firebase developers? What follows are some tips for finding top Firebase developers on Upwork.

How to shortlist Firebase professionals

As you’re browsing available Firebase consultants, it can be helpful to develop a shortlist of the contractors you may want to interview. You can screen profiles on criteria such as:

  • Platform fit. You want a Firebase developer who understands how to use Firebase with your mobile ecosystem of choice (e.g., Android or iOS).
  • Project experience. Screen candidate profiles for specific skills and experience (e.g., using AngularFire to integrate Firebase features with your Angular project).
  • Feedback. Check reviews from past clients for glowing testimonials or red flags that can tell you what it’s like to work with a particular Firebase developer.

How to write an effective Firebase job post

With a clear picture of your ideal Firebase developer in mind, it’s time to write that job post. Although you don’t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if they’re the right fit for the project. 

An effective Firebase job post should include: 

  • Scope of work: From unit testing to adding analytics to your mobile app, list all the deliverables you’ll need. 
  • Project length: Your job post should indicate whether this is a smaller or larger project. 
  • Background: If you prefer experience with certain mobile platforms, SDKs, or technologies, mention this here. 
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

Ready to build a Firebase-powered mobile app? Log in and post your Firebase job on Upwork today.

FIREBASE DEVELOPERS FAQ

What is Firebase? 

Firebase is a Google-backed mobile app development platform. It’s known to the developer community as a back end as a service (BaaS) platform because it greatly simplifies mobile back-end development. 

Here’s a quick overview of the skills you should look for in Firebase consultants:

  • Firebase SDKs
  • Mobile app development
  • Mobile ecosystems (e.g., iOS and Android)
  • Back-end development

Why do you want to hire Firebase developers?

The trick to finding top Firebase developers is to identify your needs. Are you building a mobile app and want to set up a cloud-based, real-time NoSQL database with Cloud Firestore? Or will you be extending your app’s functionality with an event-driven back end via Cloud Functions? The cost of your project will depend largely on your scope of work and the specific skills needed to bring your project to life. 

How much does it cost to hire a Firebase developer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions.

  • An experienced Firebase developer may command higher fees but also work faster, have more specialized areas of expertise, and deliver a higher-quality product with fewer bugs.
  • A contractor who is still in the process of building a client base may price their Firebase development more competitively. 

Which one is right for you will depend on the specifics of your project.

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