Upwork home
Sign up
Secondary

Hire the best Firebase Developers in New York

Check out Firebase Developers in New York with the skills you need for your next job.
Get started
  • $40 hourly

    • 4.6/5
    • (18 jobs)
    Independent mobile developer. President of Oxigenic Inc. I make ideas come to life. Let's make yours next.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Audio Production
    In-App Subscription
    SQL
    Game Development
    App Development
    Graphic Design
    In-App Purchases
    iOS Development
    Mobile App Development
    Swift
  • $50 hourly

    • 5.0/5
    • (16 jobs)
    Top 3% on Upwork EXPERIENCE Default Software LLC collaborates with an array of clients in Education, Healthcare, Government, and Videogames to design and implement custom software solutions Software Engineer Dec 2020 – Present • Introducing monetization models to title utilizing in-app purchases and subscriptions to create revenue • Applying Google/Apple services to title in conjunction with backend-solution to enable mobile support • Delegating backend services to Azure Playfab as a solution for live games with managing game services, real-time analytics, and LiveOps that handles up to 100,000 unique users • Constructing multiplayer capabilities on a preproduction multi-platform title with Photon, a flexible client-server solution that handles up to 50,000 Concurrent Users • Implementing a programmatic custom anti-cheat system to handle rule validation for a title to prevent users from making invalid purchases and invalid game commands System Engineer Sept 2020 – Nov 2020 • Devised custom device update policies to automate software patch management and vulnerability management reducing security risks on 50% of windows machines • Automated IT services for an expanding client with seven branches in the northeast reducing IT assistance hours by 86% • Established IT related policies for enforcement of HIPAA in cooperation with client of 200 employees • Consulted with client to streamline IT processes for fast distribution of new work devices, new account implementations, and device decommissions Eastchester Union Free School District Eastchester, NY Computer Aide Jun 2018 – Aug 2018 | Jun 2019 – Aug 2019 • Oversaw administrative clerical duties to assure five district projects related to network infrastructure expansion and device distributions were on schedule • Led expansion of district WLAN via installation and configuration of 60 Aerohive AP230 Access Points • Managed PC imaging for over 500 devices through the district network to ensure devices operate on the same system, with the same functionality, and user role security privileges • Coordinated the introduction of the Eastchester Google Fellowship Program, which involved the enrollment of 250 Chromebooks and provision of technical assistance to educator PROJECTS Middleware/System Application (C#, Docker Compose CLI) May 2020 – July 2020 • Developed a prototype .NET application utilizing Clean Microservice Architecture alongside a Domain-Driven Design to be used with software that converts images of structures to virtual 3D models • Assembled a C#/SQL Server 2019 in conjunction with Swagger RESTful services to a React-frontend Neural Networks (Python, TensorFlow, Google Cloud Compute Engine API) Jan 2019 – May 2019 • Implemented a Multilayer Perceptron and evaluated its performance in classifying handwritten digits • Evaluated neural network with complex hand-drawn images dataset to ensure full functionality • Managed performance of neural network against a deep neural network using the TensorFlow library Compiler (C) Jan 2018 – May 2018 • Designed a translator for high-level programming languages in a team of three • Implemented the eight aspects of a translator: lexical analysis, context-free grammars, parsing, storage allocation, code generation and optimization, and error recovery to ensure proper paradigm SKILLS Programming Languages: C#, C, C++, Python, Typescript Web Development: HTML/CSS, Swagger RESTful API, React, Microsoft SQL Server, MySQL Other: MS Suite, Unity, Docker Compose CLI, TensorFlow, Azure, Photon API, Google APIs, Apple APIs EDUCATION University at Buffalo, SUNY Buffalo, NY B.S. Computer Science Dec 2019 OTHER Spanish: Native Speaker, Intermediate Writer Interests: NFT, Cryptocurrency, Blockchain, Decentralized Finance, UX/UI Game Design, Board Games Hobbies: Weight Training, Cardiovascular Exercise, Hiking, Comics
    vsuc_fltilesrefresh_TrophyIcon Firebase
    C#
    Game Consultation
    In-App Advertising
    App Store Optimization
    Monetization
    User Authentication
    Online Multiplayer
    Multiplayer
    Mobile App Development
    Mobile Game
    Game Development
    Game Design Document
    Mobile Advertising
    Unity
    Mobile UI Design
  • $70 hourly

    • 5.0/5
    • (7 jobs)
    I am a software developer and software architect with over 7 years of experience. I live and breathe full-stack software development and revel in producing results employing the latest technologies. I have worn many hats and specialized in multiple areas along my career, but in recent years my focus has converged into a narrower set of technologies: 1) React JS, React Native, Vue JS 2) Node, Express, PostgreSQL, MySQL, Mongo I work well as a team member and I can also help from a position of leadership from where I can lead, or help you lead / mentor, a team of developers to the successful implementation of a software product.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Material UI
    Tailwind CSS
    ExpressJS
    Redux
    HTML
    Microservice
    CSS
    Node.js
    JavaScript
    MongoDB
    PostgreSQL
    Angular
    React
    React Native
  • $60 hourly

    • 5.0/5
    • (7 jobs)
    Hello, I'm Joshua, a passionate and innovative software developer, dedicated to bringing your digital visions to life. Currently, I have a bachelor's degree from New York City College of Technology, I'm on the journey to grow up my skills in software development. Along the way, I've built a strong foundation in object-oriented programming, system design, database-driven application development, project management, and expertise in the Python, Node, Go and .NET Framework, among other vital areas. Growing up in the bustling city of New York, I've come to see software development as a parallel to urban life. Just as the city never sleeps, this field never stops evolving. It's a constant journey of learning, akin to navigating the ever-changing streets of NYC. I embrace new technologies with the same enthusiasm I have for exploring new neighborhoods, and I approach challenges with the same adaptability as you need when living in a vibrant metropolis. Software development, like the city itself, offers a boundless realm of possibilities to turn ideas into reality, and I'm excited to be part of this dynamic journey. Looking forward, I'm on a journey of growth and innovation in software development. My dream is to build my own business and collaborate with companies that share my passion. Right now, I'm taking the small steps that lead to big adventures. As I move forward in my software development journey, I'm eager to take on new challenges, encourage creativity, and convert innovative ideas into reality. Let's collaborate to bring your digital projects to life. Whether you're a developer, a client, or simply someone passionate about technology, I look forward to connecting and exploring new opportunities together. Please don't hesitate to contact me, and let's start a conversation about how we can work together to make a meaningful impact in the world of software development.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Google Cloud Platform
    AWS Amplify
    MongoDB
    Golang
    Spring Boot
    Java
    Angular
    .NET Framework
    C#
    Python
    Node.js
    TypeScript
    Next.js
    React
  • $70 hourly

    • 5.0/5
    • (5 jobs)
    With 10+ years of experience in software development, I specialize in creating high-quality, user-friendly mobile and web applications using Flutter and FlutterFlow. My journey in development is enriched by a background in Philosophy, which has honed my ability to approach problems with a unique blend of creativity, critical thinking, and analytical skills. This combination allows me to develop innovative solutions that not only meet technical requirements but also provide an intuitive and seamless user experience. Throughout my career, I have successfully delivered a wide range of projects across various industries, including telehealth, financial services, eCommerce, and more. My expertise extends from developing MVPs for startups to scaling applications for global enterprises, with a keen focus on performance, scalability, and maintainability. I am proficient in all aspects of the development lifecycle, from initial concept and design to deployment and post-launch support. I am passionate about learning new technologies and continuously improving my skills, which is why I stay up-to-date with the latest developments in the Flutter ecosystem. My philosophy background enables me to approach challenges with a balanced perspective, considering both technical and ethical implications, which is particularly valuable when developing applications that prioritize user privacy and data security. Whether working independently or collaborating with cross-functional teams, I am committed to delivering high-quality solutions that exceed client expectations. My ability to merge creative ideas with technical expertise allows me to create applications that are not only functional but also enjoyable to use.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Mobile App Design
    Mobile UI Design
    Flutter Stack
    FlutterFlow
    Android
    iOS
    AI Mobile App Development
    Node.js
    Hybrid App Development
    Firebase Realtime Database
    Firebase Cloud Firestore
    Dart
    Mobile App Development
    Flutter
  • $50 hourly

    • 5.0/5
    • (1 job)
    With more than 7 of years experience in the mobile technology industry, I am a Senior Cross-Platform Developer, specializing in crafting top-notch mobile applications. I am a proficient expert in Flutter and React Native platforms with a laser-focus on creating streamlined and engaging user experiences that sync perfectly with both client specifications and industry standards. Utilizing my strategic knowledge and expertise in Flutter, I create robust and scalable solutions assuring unsurpassed performance and functionality. My steadfast dedication to code perfection, accuracy, and teamwork-oriented involvement equips me to communicate effectively with clients, thereby ensuring every project milestone is met punctually and to the highest quality standards. 【━═★ Transform Your App Ideas into Industry-Revolving Innovations! ★═━】 ✴️ Technical Superiority ✴️ - In-depth expertise in Flutter, Flutter Flow, Dart - Wide-ranging skills in React Native, Reactjs, Node, Javascript, CSS - Complete mastery of Firebase services integration - Expertise in CI/CD pipelines via GitHub Actions & Fastlane - Comprehensive command of GraphQL & RESTful API development - Skilled in Kotlin/Java (Android) & Swift/SwiftUI (iOS) - Specialty in AI and DAPP Development ✴️ Testing Excellence ✴️ - Proficiency with Jest - Skillfulness in Mocha - Extensive experience with Jasmine ✴️ Cross-Platform Leadership ✴️ - Comprehensive application development on Flutter & React Native - Expertise in IDE environments: Android Studio, Visual Studio Code - Adeptness in vital languages: Dart, JavaScript, TypeScript, CSS, HTML ✴️ Apple Development Expertise ✴️ - Mastery of iOS, WatchOS, tvOS application solutions - Advanced proficiency in XCode - Expertise in iOS SDK, Cocoa, Core Data ✴️ Android Development Expertise ✴️ - Top-level Android apps & device integrations developer - Proficient authority in Android Studio, Visual Studio Code - Mastery of Corona SDK, Android SDK ✴️ Blockchain Development Acumen ✴️ - Extensive expertise in Smart Contract Development (Solidity, Vyper) - Smooth Blockchain Integration & NFT Creation - Advanced capabilities in DeFi Application Development - Strategic measures for Blockchain Security ✴️ API Integration Mastery ✴️ - Vast experience with RESTful, Google Maps, Stripe, PayPal, Sendgrid, etc. ✴️ Additional Technical Expertise ✴️ - Proven skills in Google Cloud Services - Mastery of Jenkins, SVN, Git/Bitbucket - Expertise in Elastic Search implementation - Mastery in Twilio Integration - Proficiency with Nginx, Apache Web Server - Cloud deployment skills in AWS, Heroku ✴️ What You Can Expect ✴️ - Top-tier Map-Based & E-commerce Applications - Revolutionary Social Networking & Location-Based Solutions - Advanced Booking & Scheduling Platforms - Scalable Delivery & On-demand Service Applications - Cutting-edge Live-streaming & Multimedia Solutions - Comprehensive Music & Utility Applications - High-Tech 2D/3D App Development (Cocos 2d, Sprite Kit, Unity) - Emerging Tech AI & Blockchain Applications 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 𝐖𝐢𝐭𝐡 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐨𝐧. 𝐃𝐞𝐥𝐢𝐯𝐞𝐫 𝐖𝐢𝐭𝐡 𝐃𝐢𝐬𝐭𝐢𝐧𝐜𝐭𝐢𝐨𝐧.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Kotlin
    Swift
    AI App Development
    Mobile App Development
    iOS
    Android
    React Native
    FlutterFlow
    Flutter
    Flask
    Django
    API Integration
    Java
    Python
  • $50 hourly

    • 4.7/5
    • (36 jobs)
    More than a Software engineer 👨‍💻 , I am a Tech Consultant who helps businesses develop and launch 🚀 scalable digital solutions to empower businesses with technology. I am Highly experienced 🏅 in working with teams/building teams and even doing projects individually. With more than 10 years of experience in developing MOBILE and WEB applications, Over time I have become an expert at solving complex problems and creating state-of-the-art solutions, I like working on projects with a team that cares about creating interactive software. Domain Expertise: AI-based Apps, E-commerce apps, Logistics Apps, Social Media Apps, Demand Apps (Apps like Uber), Locations/Geo fence-based apps, IOT Devices interacting Apps, Blockchain apps, Health Care Applications, and Business Apps. Technologies: Native and Hybrid Mobile Applications (Swift/Kotlin, React Native & Flutter), Node JS, PHP, Python, Angular JS, React JS, and Mongo DB/MySQL. I prefer building long-term relationships with clients, envisioning being the technology partner or lead for the project. Flexible to join an existing team or build a team from scratch. Open for both Long-term and short-term engagements. I aim to provide quality and professional solutions that are easy to implement, user-friendly, and highly Scalable. Let's hop on a quick call to discuss this further !! Cheers 🥂
    vsuc_fltilesrefresh_TrophyIcon Firebase
    React Native
    Swift
    Core PHP
    SQL
    MongoDB
    HTML5
    Node.js
    JavaScript
    AngularJS
  • $50 hourly

    • 4.6/5
    • (10 jobs)
    With more than 5 years of progressive experience in the development and customization of Mobile and Web applications, I have become an expert at solving complex problems and creating futuristic mobile applications. My portfolio includes more than 30 apps for both the Apple App Store and Google Play store and most of them are with 100,000+ traffic a day. The approach I follow: ↳ Requirement Analysis ↳ Designing ↳ Development ↳ QA Testing ↳ Deployment ↳ Maintenance I prefer complete transparency with my clients related to the development process and all other aspects and keep them updated with frequent releases/Git submissions so that the end-result matches their expectations. I'm open to a test task/describing my role in current or previous projects/sharing the code/answering any question. Thank you for your attention! Looking forward to hearing from you. - Raj Kamal
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Graphic Design
    CSS
    Web Design
    HTML
    Stripe
    Agile Software Development
    In-App Purchases
    Chat & Messaging Software
    Camera
    Android
    Twilio API
    AngularJS
    Node.js
    Java
  • $50 hourly

    • 5.0/5
    • (3 jobs)
    Experienced and creative full-stack software developer eager to contribute to game-changing projects featuring intriguing technical challenges. Proficient in building complex web apps, designing algorithms, and writing smart contracts. Demonstrated ability to quickly adapt to new languages and frameworks. Languages and Frameworks: TypeScript, JavaScript, Python, Rust, Ruby, Node.js, OpenAI API, HuggingFace API, Express.js, TensorFlow.js, HTML5, CSS3, SASS, Git, GitHub, React, Angular, Ionic, Vue, Solana, Anchor, Ruby on Rails, SQL, NoSQL, Postgres, Firebase and Stripe.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Generative AI
    NFT
    Solana
    OpenAI API
    Vercel
    Next.js
    Vue.js
    Angular
    React
    Node.js
    Rust
    Python
    JavaScript
    TypeScript
  • $40 hourly

    • 4.9/5
    • (67 jobs)
    🎯 100% Job Success Score 💎 7+ Years of Experience in Web & Mobile Development 💥 60+ Jobs Completed ⌚ 2000+ Hours 💰 60k+ Earnings 💪 Strong Portfolio ⭐⭐⭐⭐⭐ 60+ Jobs With 5 Star Ratings I am an Expert Full Stack Developer with 7+ Years of Experience with both Frontend & Backend Development. I have an excellent understanding of how technology can be used to align the requirement of both the business & the customer. Within the past several years, I have worked with other Individuals in a Team Environment, & worked solo as a Full-time Freelancer. With such a Diverse Background, I am well-versed in High-end Communication Skills, Excellent Business Practices & Self-motivated Principles for Success. I have developed various Websites for different Businesses like News, Blogs, Social Media, eCommerce, Custom Business Solutions, Taxi Booking, Travel, Video Streaming, Telemedicine, Healthcare Fitness, Food Delivery, Service Providers, Fintech, EWallet & many more. 👉 MY EXPERTISE & SKILLS: ✅ Frontend: React Native, React JS, Next JS, Nuxt JS, Angular JS, Vue JS, Redux, Hooks, Redux ToolKit, JavaScript, Bootstrap, HTML, JQuery, SASS, CSS, SCSS, Styled Components, Chakra UI, Material UI, Ant Design ✅ Backend: Node JS, Nest JS, Express JS, MYSQL, Python, SQLite, MongoDB & Sequelize ORM ✅ Database: MySQL, Aurora, PostgreSQL, MariaDB, SQL Server, MongoDB, Redis ✅ Third-Party APIs Integrations: ♠ Payment Gateway: Stripe, Open Pay, ChargeItPro, Quantum Payment, Authorize.net, ACH Works, PayPal, ComproPago, Expinet, Fatt Merchant, Oxo pay, Pay way ♠ Map: Google Map with marker, Google Geo API, Microsoft Bing API ♠ SMS: Twilio API, AWS SNS ♠ Search: AWS Elasticsearch API, Solr ✅ Cloud services: Firebase Realtime database, Crashlytics, Analytics, Cloud Firestore, Storage, Dynamic Links, Cloud functions, Authentication, AWS Amplify, AWS Lambda. ✅ I am well versed with, ♠ GIT (GitHub / GitLab / Bitbucket) / SVN etc. version control systems (branching workflow). ♠ Jira / CI/CD / Basecamp / Redmine / Asana / Trello / Flow / Scrumdo or any other project management tools. ♠ Jenkins / Amazon Code Deploy / Bamboo / Rsync etc. code deployment tools. ♠ cPanel / WHM / AWS Management / Digital Ocean / Google Cloud Service / Kubernetes / Azure / Linux server management. ✅ REST APIs, OAuth ✅ Support & Maintenance 👉 MY PRINCIPLE: ⭐ I can use any Task Management Software the Client Prefers ⭐ Ready to work for 40-50 Hours Per Week. ⭐ Daily Update on your Project. ⭐ Meeting Deadline Efficiently Let's get in touch & see if I am a good match for your project.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Azure DevOps
    Responsive Design
    Web Development
    Node.js
    SQLite
    React
    WordPress
    HTML5
    UI/UX Prototyping
    Database Development
    React Bootstrap
    Microsoft Azure
    Python
    Laravel
    PHP
    CSS 3
    Django
    Front-End Development
    React Native
    Bootstrap
  • $56 hourly

    • 5.0/5
    • (12 jobs)
    As Senior Full Stack Developer at Wematch.live - a back office trading platform used by over 90 financial institutions, I take pride in my ability to develop backend API systems and turn them into responsive UI applications. Technical Skills: JS, TS, React / Native, Redux, Node, Python, Ruby / Rails, SQL / NoSQL, Responsive Design, and Git workflow-based programming. Experienced in Agile Development | Proven industry experience building startups in both the NYC / Tel Aviv tech spaces Military Leadership | Former Sergeant in the IDF | Reservist
    vsuc_fltilesrefresh_TrophyIcon Firebase
    RESTful API
    MongoDB
    Front-End Development
    PostgreSQL
    Python
    SQL
    Ruby on Rails
    CSS 3
    HTML5
    React
    Node.js
    JavaScript
    TypeScript
  • $60 hourly

    • 4.5/5
    • (15 jobs)
    I build web apps on React as well as iOS apps with Swift. Need a website (or web app) and a native iOS app? No problem! I have 8+ years of experience writing efficient web apps in React, as well as complex websites on Next.js. I have a sense of good UX and UI, so I approach every mock-up very thoroughly. I've also led a team of frontend engineers, mentored junior devs and acted as a Scrum Master to the team. I love Swift and SwiftUI! Started my professional path as an iOS Dev and still making progress in this area by bringing more great ideas to life. My app Timerange currently has more than 40 000 users around the globe. I’m currently doubling down on SwiftUI, writing all my latest apps using this framework, and I also inject SwiftUI into my older UIKit based projects.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    In-App Purchases
    Camera
    SiriKit
    iOS Development
    XCTest
    iOS
    Apple Xcode
    Push Notifications
    Alamofire
    Encryption
    UIKit
    Swift
    iOS SDK
  • $50 hourly

    • 5.0/5
    • (3 jobs)
    I'm a Senior software engineer with 8+ years of extensive experience in building Mobile Apps and Web Apps. My experiences include working with modern technologies like Swift for iOS and Kotlin for Android, and Hybrid technologies like React Native and Flutter. I have been working with the MEAN/MERN stack as well. With more than 8 years of experience in development and customization of Mobile and Web applications, I have expertise in both Front end and Back end development. Being a Full Stack engineer, I can handle an application from the Start to Finish, including the designing. Areas of Expertise - E-commerce apps, Social Media Apps, On Demand Apps, Location-based Apps, BLE, and Business Apps. I am here to build long term relationship with my clients. Let's work together and create solutions that can change the world. Have an idea? Let's connect and get it started.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Mobile App Development
    React Native
    Angular
    Swift
    Flutter
    iOS Development
    Node.js
    ExpressJS
    Android App Development
    Kotlin
    MongoDB
  • $65 hourly

    • 5.0/5
    • (11 jobs)
    Experience in Mobile and Web development. Consulting experience for large enterprises. Developed Twitch Extension and Chatbots for Partner and Affiliate streamers.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Chatbot Development
    User Acceptance Testing
    JavaScript
    SQL Programming
    Chatbot
    TypeScript
    Angular
    Computer Science
    Video Stream
    Twitch
    HTML
    Mobile App
  • $57 hourly

    • 5.0/5
    • (1 job)
    From Idea to Launch: Reliable Mobile App Development for Startups⚡As a team of a professional React Native Mobile Developers based in NYC, We specialize in creating mobile hybrid apps tailored to the unique requirements and specifics of your business from scratch (ideation, design, app, backend, api, database) and launching on AppStore(iOS) and Google Play(Android). 🚀 With over 10,000 installs under our belt we are confident to make your app thoughts a reality! 📲 Keep reading or message me to find out how it can be done. Let's get started! -------------------------------------------------- 🎓 We have development experience in the following industries: • Social Networking & Chat • Taxi & Delivery • Commerce • Health & Fitness • Dating • Fintech • Education • Productivity • Booking & Travel • Entertainment • Maps & Navigation ---------------------------------------------------- 🏆 Here are a few examples of our recent results: ★ Built from scratch a successful hybrid mobile application MVP using React/Ionic/Express.js/PostgreSQL and launched it across platforms for a Delivery startup that enables successful same-day delivery for 20 floral companies across New York City at Bringa.me. ★ Turned a client's ideas and built them into an amazing a Social Networking mobile application with React Native/Firebase/Express.js/MongoDB and brought it to marketplaces, resulting in over 10,000 installs on the App Store and Google Play at Joinjoin.app ★ Considering the needs and requirements of business developed and launched a mobile app for iOS and Android smartphones using React Native/Expo/Firebase, which offers a Commerce platform for farmers to sell natural products and customers to buy healthy and high-quality food at Villa-menu.com 🔥 Messages me and I will share key insights, which are crucial for successfully deploying your application on both the App Store and Google Play marketplaces. ---------------------------------------------------- 💼 We offer a reliable end to end mobile development service: • Turn your thought into technical requirements • Creating a full UX/UI Mobile App Design (app, icons, banners, motion design) • Developing a mobile hybrid application for iOS + Android smartphones and tablets with React Native • Developing an admin Web panel with React • Developing a SEO optimized Web Landing Page • Backend Implementation: API Integrations, RESTful API, CRUD (Node.js, Express.js, NestJS) • Design scheme and a database Implementation (MongoDB, PostgreSQL, FirebaseDB, AWS DynamoDB) • User Analytics Integration • Upload to Marketplaces AppStore & GooglePlay • Guarantee & Bugfix ---------------------------------------------------- ⚙️ Development process: • 1-2 week sprints for consistent progress • Weekly reports for updates and upcoming tasks • Build delivery at end of the sprint for the latest developments • Upwork availability for quick communication on business days from 9 am to 7 pm EST --------------------------------------------------- 🎖 Here's what my previous clients wrote about us: ➤ "I am thoroughly impressed by mobile app development service that Ivan's team provided for me! I came to them with just an idea and a few sketches, they took them and turned into an amazing application. They consistently delivered on time and kept me updated throughout the project. Their design and development abilities are exceptional, and I couldn't be happier with the final product. Collaborating with them was a delight, and their expertise and professionalism made the entire process effortless. I highly recommend their service - they truly knows their craft and will ensure the job is done to perfection" ( Ulukbek Nusubaliev, Bringa.me - NYC courier service ) ---------------------------------------------------- ■ Design: Figma, Photoshop, Adobe Creator. ■ Cross Platform Hybrid Mobile App (iOS + Android): React Native, JavaScript, TypeScript, Expo. ■ Backend: Node.js, Express.js, NestJS, GraphQL, AWS Lambda, Firebase Cloud Functions, WebSockets, RESTful API. CRUD. ■ Database: MongoDB, PostgreSQL, Firebase Realtime Database, AWS DynamoDB. ■ Api Integrations: Google Services, Amazon Services, Apple Services, Firebase SDK, Facebook SDK, Stripe API, Twilio, Rapid APIs. ■ Version controls: Git, Gitlab. ■ Other: Mobile App Development, Hybrid App Development, iOS, Android, MVP, PWA, MERN.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Mobile App
    JavaScript
    React Native
    Android
    iOS
    Android App Development
    iOS Development
    React
    Node.js
    Mobile App Development
    MongoDB
    Hybrid App Development
  • $80 hourly

    • 5.0/5
    • (28 jobs)
    🏆 Top 1% Expert-Vetted Freelancer on UpWork 🏆 If you're looking for a reliable app developer who understands your business requirements and delivers exactly according to your needs, then you're in the right place. 𝗣𝗥𝗢𝗩𝗘𝗡 𝗥𝗘𝗦𝗨𝗟𝗧𝗦 ✓ 𝗔𝗽𝗽𝗹𝗲 𝗘𝗱𝗶𝘁𝗼𝗿'𝘀 𝗖𝗵𝗼𝗶𝗰𝗲 𝗔𝘄𝗮𝗿𝗱: For the FinTech app Gimi, which helped secure $4M in funding and ranks among the Top 10 Finance apps in Sweden. ✓ 𝗠𝗲𝗻𝘁𝗶𝗺𝗲𝘁𝗲𝗿 𝗦𝘂𝗰𝗰𝗲𝘀𝘀: Helped scale Mentimeter's platform to 270+ million users, leading to $40M in funding at a $200M valuation. Today, they are industry leaders in SaaS. ✓ 𝗘𝘃𝗼𝗹𝗶'𝘀 𝗦𝗲𝗹𝗳-𝗦𝗲𝗿𝘃𝗶𝗰𝗲 𝗜𝗻𝘀𝘂𝗿𝗮𝗻𝗰𝗲 𝗔𝗽𝗽: Developed Evoli's app, which reduced their customer support needs and secured $4M in funding, maintaining a Top 100 position on the App Store. ✓ 𝗢𝗽𝗲𝗻-𝗦𝗼𝘂𝗿𝗰𝗲 𝗖𝗼𝗻𝘁𝗿𝗶𝗯𝘂𝘁𝗼𝗿 𝗮𝗻𝗱 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝘆 𝗟𝗲𝗮𝗱𝗲𝗿: With contributions to Facebook open-source projects and experience working with giants like Spotify, you can trust my expertise to deliver industry-standard reliable apps. 𝗔𝗣𝗣𝗦 𝗪𝗛𝗜𝗖𝗛 𝗥𝗘𝗙𝗟𝗘𝗖𝗧 𝗬𝗢𝗨𝗥 𝗕𝗨𝗦𝗜𝗡𝗘𝗦𝗦 𝗥𝗘𝗤𝗨𝗜𝗥𝗘𝗠𝗘𝗡𝗧𝗦 Whether you want to build a community to better connect with your users, or transform your slow, error-prone processes into a streamlined, efficient machine that boosts profits and reduces unnecessary costs, I have the expertise to elevate your business. 𝗕𝗘𝗡𝗘𝗙𝗜𝗧𝗦 𝗢𝗙 𝗪𝗢𝗥𝗞𝗜𝗡𝗚 𝗪𝗜𝗧𝗛 𝗠𝗘 ✓ 𝗧𝗿𝗮𝗻𝘀𝗽𝗮𝗿𝗲𝗻𝘁 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻: Weekly updates so you’re always in the loop. ✓ 𝗙𝗹𝗮𝘄𝗹𝗲𝘀𝘀 𝘁𝗶𝗺𝗶𝗻𝗴 𝗮𝗻𝗱 𝗯𝘂𝗱𝗴𝗲𝘁𝗶𝗻𝗴: Your project stays on track and on time, thanks to a strict roadmap that prevents unexpected costs. ✓ 𝗗𝗲𝗱𝗶𝗰𝗮𝘁𝗲𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿: Unlike big agencies that hand off your project, I will see you through from start to finish, so that there’s a single point of contact and fast turnaround times. 𝗟𝗘𝗧'𝗦 𝗪𝗢𝗥𝗞 𝗧𝗢𝗚𝗘𝗧𝗛𝗘𝗥 If you’re ready to turn your vision into a reliable app that your users will love then we should talk. Feel free to send me a message. We can arrange a short call with no obligation to go over your project and see whether we're a good fit to work together. Get in touch now! Speak soon, Arvin Behshad Services offered: AI Chatbots, React Native, Flutter, FlutterFlow, Native iOS (Swift, Objective-C), Native Android (Kotlin, Java), Web development, App Design, Web Design
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Mobile App
    iOS
    iOS Development
    In-App Purchases
    User Profile Creation
    User Authentication
    Swift
    Smartphone
    Mobile App Development
    Chat & Messaging Software
    Android App Development
    Android
    React Native
    Hybrid App Development
  • $70 hourly

    • 5.0/5
    • (7 jobs)
    Hi, I'm an accomplished web developer with over 8 years of extensive experience in building exceptional web applications tailored to clients' needs across various industries. Skills and technologies: • Ruby, Ruby on Rails, Elixir, RSpec, Gem. • Javascript (ES6), TypeScript, Node, Nest.js. • Relational databases with MySQL, PostgreSQL, and NoSQL (MongoDB, Redis). • Amazon Web Services using EC2, S3, Lambda, RDS, Heroku, and Vercel. • Twilio, Segment, SendGrid, Bandwith, MailGun, Zapier, Authorize.net, Stripe, Mapbox, GSuite. My expertise in E-commerce, SaaS, Real Estate, Fintech, and Social Media application enables me to offer targeted solutions to address the unique challenges faced by each sector. This dedication allows me to craft innovative and efficient web solutions that will exceed your expectations. Feel free to reach out.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Heroku
    RSpec
    AWS Lambda
    NestJS
    React
    Node.js
    ExpressJS
    MongoDB
    Kubernetes
    Docker
    Ruby on Rails
    Ruby
    PostgreSQL
  • $95 hourly

    • 5.0/5
    • (5 jobs)
    A seasoned full-stack web developer and software architect with in-depth knowledge of MERN-Stack development, database management and cloud solutions. I specialize in React and Node.js with expertise deploying to both server and serverless environments on AWS and Heroku. I also work with relational databases and large datasets. I have a strong background in IT security and best coding practices combined with working with founders in fast-paced environments to create their software prototypes and MVPs, with a unique ability of understanding and translating business requirements into development roadmaps.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Heroku
    API
    React Native
    MERN Stack
    Tailwind CSS
    Redux
    MongoDB
    Next.js
    Amazon Web Services
    Node.js
    React
    JavaScript
    TypeScript
    Bootstrap
  • $70 hourly

    • 5.0/5
    • (17 jobs)
    Hi everyone! I'm a fullstack software developer who specializes in everything ranging from web, iOS, Android, to desktop applications. I have experience working in Node.js, ReactJS, Swift, Kotlin, Firebase, AWS Amplify, and many other languages / frameworks. I have been working on Fiverr up until now and have decided to join Upwork to expand my freelance business. I am always available for a free consultation on any project you have planned, and at any budget.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    iOS Development
    Front-End Development
    SwiftUI
    Swift
    iOS
    Web Development Consultation
    Mobile App Bug Fix
    Mobile App Development Consultation
    Mobile App Development
    Android App Development
    AWS Amplify
    JavaScript
    Kotlin
    Web Development
  • $65 hourly

    • 5.0/5
    • (5 jobs)
    I am an engineer/developer with a proven track record of delivering large-scale web applications for enterprise clients, tailoring experiences for underrepresented audiences, collaborating with designers to create pixel-perfect UIs, and developing cross-platform native applications. I specialize in optimizing and organizing internal libraries, significantly improving production efficiency for client projects, in some cases reducing production time by 12%. With over 6 years of experience in web and application development, I leverage React, CSS, and JavaScript for front-end development, and employ Node.js, Python, and Kotlin for backend operations. I have collaborated with companies of diverse scales, spanning nonprofits to Fortune 100 companies such as Google. Currently, I am delving deeper into areas such as machine learning, reinforcement learning, design, and systems engineering. My passion for building things fuels my curiosity to continuously learn and develop new skills.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    GSAP
    Back-End Development
    Front-End Development
    UI/UX Prototyping
    FastAPI
    Svelte
    React Native
    WebGL
    Node.js
    Python
    JavaScript
    React
  • $50 hourly

    • 5.0/5
    • (42 jobs)
    Hello! I'm a passionate Game Developer with over 13 years of experience in bringing video games and mobile applications to life. My journey began with a solid foundation in Computer Science, leading me to specialize in crafting engaging games across various platforms, including 3D, virtual and augmented reality, and traditional 2D environments. While 3D game development is where my heart truly lies, my skills span a wide range of technologies including Unity3D, C#, and more, ensuring that I can bring your gaming visions to reality. Whether you're looking to develop a game from scratch or enhance existing assets, my expertise in both game development and native mobile app creation allows me to serve as a comprehensive resource for your project. Although my primary focus is on programming, I'm also capable of making minor artwork adjustments in Photoshop and collaborate seamlessly with 3D design experts to cover all artistic needs. Beyond game development, I'm equipped to contribute as a full-stack developer, thanks to my proficiency in a variety of programming languages and databases. This versatility ensures that I can adapt to your project's specific requirements, providing a holistic approach to development. Over the years, I've had the privilege of developing a lot prominent games and applications that have been well received by clients and users alike. If you're seeking someone committed to excellence and ready to contribute to your project's success, I would love to connect with you. Together, we can explore how I can support your vision and bring your game to life.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Multiplayer
    Anti-Cheat Plugin
    Agora.io
    Azure DevOps Server
    Blazor
    3D Design
    Web3
    AR & VR Development
    Mobile Game
    iOS
    Third-Party Integration
    C#
    Unity
  • $60 hourly

    • 5.0/5
    • (27 jobs)
    Special: I am offering my services at a reduced rate while I'm building my Upwork history. US-based Fractional/Full-time CTO with over 20 years of experience leading technology initiatives for startups and global corporations, including The Federal Reserve and Fannie Mae. I am one of the pioneers of Fractional CTO movement, my article from 2017 can be found at appsci.dev/a. You can view my resume at appsci.dev/r.pdf or my LinkedIn at lnkd.in/t6V7yP. I specialize in transforming ideas into scalable, reliable, and user-friendly products. My approach includes: - Defining Clear Requirements: Brainstorming and shaping your concept into actionable goals. - Selecting the Right Tools: Identifying the optimal tech stack, including AI, no-code/low-code platforms, and SaaS solutions to maximize efficiency and reduce costs. - Building and Leading Teams: Establishing productive development teams to execute projects effectively. - Delivering Excellence: Ensuring a fast, iterative development cycle with high-quality, thoroughly tested code and regular releases for your review. I’m an expert in modern web and mobile frameworks and advocate for "minimal development"—leveraging open source and SaaS wherever possible to accelerate timelines and reduce defects. My approach balances cost and time efficiency while prioritizing quality, scalability, performance, and security. Let’s collaborate to bring your vision to life with a strategy tailored to your goals. I am excited to be your technical partner and help you build an outstanding product. As an addendum, below are some questions I invite you to consider that I can help you answer and implement: Technology Strategy - What infrastructure, frameworks, AI tools, Low/No Code tools will let me deliver a performant, reliable, extensible and scalable MVP rapidly Recruitment/Vendors - Do I outsource or hire. Should I go overseas. - What are the best hiring practices. Could you help me conduct interviews - How should I manage my developers/vendors. Should I apply Agile and which flavor? Which tools should I use for managing Agile Project management and DevOps - How do I best utilize source control repositories (GitHub etc) - How do I set up/manage continuous integration and deployment including automated testing - How do I tie DevOps with PM and Issue tracking tools UX/UI - How do I find/manage a UX/UI/graphics designers - How do create efficient communication between design and dev staff, and UI/UX integration cycle - What wire-framing/mock-up tools to use. What image formats. What image sizes etc. Development - How do I ensure high level of productivity/quality among my developers (Test/Behavioral Driven Development etc) - How do I ensure developers create maintainable/extendable code - How do I ensure that my code is secure and IP is protected - I need to fire a developer - what is a secure way to do that Data/Security - What are my security requirements for my data (at rest/in transit). Are there regulations that I need to comply with (HIPA, etc) - How do I store my data securely. How do I manage keys etc - How do I ensure that developers don't access sensitive data. How to apply/manage data masking - How do I plan for/prevent/respond to data loss. How do I plan for/prevent/respond to data theft Testing/Compliance - What should be my overall testing strategy. What tools. What testing cycle - How do I test on multiple platforms and form factors - How do I test for performance/scalability. What profiler/load testing tools. What load testing tools. How do I troubleshoot performance/scalability issues Infrastructure - What is the least maintenance intensive/most cost efficient way to host. Can I not have any "servers" at all (serverless) - How do I plan for spikes in utilization - How do I plan/handle upgrades and downtime Analytics/Telemetry - How do I best utilize/integrate analytics tools to measure usage patterns, conduct A/B testing etc - How do I best utilize monitoring and telemetry tools - How do I best utilize/integrate advertising/transaction metrics tools Roll out - Should I do a alpha/beta? Should it be invite only. Should I reward for bug reports - What is my SEO strategy. How do I choose/manage the SEO vendor - What is my social/blogging strategy. Which vendors and tools - What is my offline promotion strategy. How do I measure it Maintenance - How do I manage issues/bug reports? What tools and processes should I utilize - How do I create effective support operation. Which vendors/tools - How do I ensure continued compliance with regulations that may change
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Project Management
    Continuous Integration
    JavaScript
    Enterprise Architecture
    TypeScript
    Node.js
    React
    React Native
    Solution Architecture
    Jira
    Product Development
    AWS Amplify
    Flutter
    Dart
  • $70 hourly

    • 4.6/5
    • (14 jobs)
    My name is Suchit. As you can see from my profile, I have been working on development for over 13 years including my college. - Programming Languages / Frameworks ● JavaScript(ES5, ES6), TypeScript ● React.JS(Redux Saga, Redux thunk, React Hooks), Next.JS for SSR, React Native ● Vue.JS(Vuex), Vuetify, Nuxt.JS ● Node.JS(Sails.JS, Express.JS, Nest.JS, TypeORM, Sequelize, Mongoose) ● Python Django(DRF), Flask ● DB - MySQL, MSSQL, PostgreSQL, MongoDB, NoSQL - DevOps ● AWS: EC2, S3, RDS, EB, ECS, Route53, LoadBalancer, Cloudfront, Lambda, RDS ● DigitalOcean, Heroku, Vercel ● Jenkins, OpenCI, Travis For CI/CD - Other ● HTML, CSS, SASS/LESS, Bootstrap, MUI, TailwindCSS, StyledComponents, AntDesign, ChakraUI ● Firebase, Strapi, Netlify, Contentful ● Payment Integraion - Stripe, Braintree, Square ● Third Party Integration - Twilio(Flex), Bandwidth, Mailchimp, SendGrid If you have any new ideas, please don’t hesitate to share them with me and I will be all ears. I will turn your idea into a successful product.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    GraphQL
    Angular
    Python
    Vue.js
    Amazon Web Services
    TypeScript
    Vuex
    Node.js
    ExpressJS
    Vuetify
    React Native
    React
    CSS
    JavaScript
  • $35 hourly

    • 5.0/5
    • (1 job)
    A detail-oriented and solution-driven business analyst with a strong background in analyzing and improving business processes, identifying opportunities for efficiency, and supporting strategic decision-making. Skilled in data analysis, requirements gathering, and cross-functional collaboration to deliver actionable insights. Adept at translating complex business needs into clear, effective solutions, ensuring alignment between stakeholders and project goals. Proven ability to work with both technical and non-technical teams to drive successful outcomes in dynamic, fast-paced environments.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Tableau
    Search Engine Optimization
    CSS
    HTML
    Google Cloud Platform
    Data Management
    Microsoft Access
    Swift
    R
    SQL
    Statistics
    Data Entry
    Microsoft Word
    Microsoft Excel
  • $50 hourly

    • 5.0/5
    • (1 job)
    Dear Client I'm a full stack web developer with more than 6 years experience in FRONT-END and BACK-END. I have built lots of awesome projects including e-commerce, woocommerce and other business functions with JS libraries like React JS and Vue.JS. I am passionate and like to challenge the problem related to web. I have dealt with the clients safely and perfectly to keep the clean code, high quality and good communication. I look forward to hearing from you. Best Regards Smalls
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Cloud Computing
    Laravel
    Vue.js
    React
    Node.js
    JavaScript
    PHP
  • $68 hourly

    • 0.0/5
    • (0 jobs)
    An outstanding, energetic and results-oriented person, who seeks an opportunity to put my knowledge and skills to work with an establishment, in order to further learn and gain experience through a job employment.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Google Cloud Platform
    Microsoft Azure
    AWS Lambda
    Spring Boot
    MySQL
    Java
  • $30 hourly

    • 5.0/5
    • (9 jobs)
    Hey, my name is Jonathan Nunez. I currently build IOS apps using swift. I work on front-end and back-end to deliver great performing apps using iOS best practices. I am very passionate about IOS mobile developing and keep up with the newest technologies.
    vsuc_fltilesrefresh_TrophyIcon Firebase
    Blender
    Unity
    Laravel
    StoreKit
    AVKit
    Django
    UIKit
    Apple Xcode
    Objective-C
    PHP
    Python
    Swift
    C#
    SQL
  • 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.

Trusted by 5M+ businesses