Name: Firebase developers
Brand: Upwork
Rating: 4.7 (600 reviews)

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Clients rate Firebase developers

4.7/5

based on 600 client reviews

$40 hourly
- 4.6/5
- (21 jobs)
Independent mobile developer. President of Oxigenic Inc. I make ideas come to life. Let's make yours next.

Firebase
Audio Production
In-App Subscription
SQL
Game Development
App Development
Graphic Design
In-App Purchases
iOS Development
Mobile App Development
Swift
$75 hourly
- 4.8/5
- (36 jobs)
👋 I'm a fullstack developer with over 10+years of experience in building high-quality web applications for clients worldwide. I deliver clean, scalable and maintainable code. Good UX & project management skills. I focus on business needs first. I work with clients of any scale: from startups & small teams to enterprise. ♣︎ I offer: 👉🏼 Web application development 👉🏼 API development / Integrations / Automations 👉🏼 Frontend/backend development 👉🏼 Fullstack development ♣︎ Tech stack: Front: React / Vue / Svelte / Next.js / Nuxt.js / Redux / React Native / React Query / typescript Back: Node.js / Express / Golang CD: Docker / Kubernetes / Helm / Ansible / AWS / GCP Databases: Postgres / Mongo / Cockroach.db / MySQL / Firebase Message brokers: Kafka / NATS / RabbitMQ APIs: gRPC / REST / graphql Patterns: Hexagonal architecture / CQRS / Event sourcing & more Great experience in Automotive | eCommerce | Retail | Fin-tech businesses Keywords: javascript, kubernetes, docusign, no-code tools, integration, REST API, e-commerce, shopify, stripe, serverless, cloud functions, sharetribe, marketplace, hydrogen, strapi, sanity, headless cms, saas Let's get in touch!

Firebase
Web Application
Vue.js
Next.js
UX & UI
Node.js
React Native
JavaScript
API Development
Golang
Full-Stack Development
React
DevOps
Front-End Development
$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

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
$40 hourly
- 5.0/5
- (14 jobs)
Hi, I'm Oliver, and I have spent the past 5 years building mobile and web applications for startups and small businesses. I can take your wireframes and transform them into a full-fledged app you can put before real users in just weeks. With my fully custom, user-friendly, designs and my quick, scalable backend architectures, I will make your visions a reality. I am a student of computer science at Colorado College and I spend my free time writing code. I specialize in native iOS development and full-stack web development with a broad range of skills across many different languages and frameworks. I love working with new technologies and tackling tricky problems! I am especially interested in developing open-source projects that can make a difference in the world. Let's talk about your project! Here are the skill sets I have: IOS DEVELOPMENT:- Swift SwiftUI Spotify SDK Google Admob Revenue Cat Firebase Mapkit Healthkit AVFoundation WEB DEVELOPMENT:- HTML Javascript CSS React Next js Node js jQuery tailwindcss Spotify API Prism Flask Stripe Sendgrid Next Auth Cloud: - Lambda Functions Elastic Beanstalk Eventbridge Firebase CouchDb MonogoDb CosmosDb Api: - Express Flask SQL Next js Web3: - Solidity Wagmi IPFS Sign-In With Ethereum

Firebase
Next.js
Full-Stack Development
Spotify
CSS
Web Application
HTML
Back-End Development
Apple Xcode
iOS Development
Java
Swift
JavaScript
Python
React
$60 hourly
- 4.7/5
- (12 jobs)
Experienced Full Stack developer helping small businesses and startups develop custom apps. I have developed from the ground up and published several apps to the app store which have a lot of 5 stars. Pre-launch support: • Backend API development and integration • Frontend development • Testing and Quality Assurance • App Store Submission and Approval Post-launch support: • Maintenance/Bug Fixing • Further Extensions Areas of Expertise: • Swift, Objective-C, React Native, React.js, Typescript, Flutter, Dart, C#, Xamarin, Python, Django, Node.js/Express, Angular, .NET Cloud services: • Firebase, Crashlytics, AWS Misc: • Jira, Git, Slack, TestFlight, AppStore Contact me if you're working on any interesting projects! I consult people for FREE and would be happy to help you if you have any questions about your project or idea! Cheers!

Firebase
Shopify
C#
Dart
Flutter
Swift
Kotlin
TypeScript
React Native
Objective-C
Java
Mobile App Development
React
$100 hourly
- 5.0/5
- (39 jobs)
Hi I'm Jake! I am a Shopify developer from Somerville, MA. I specialize in Shopify 2.0 but can handle any theme thrown my way. With every client I have I listen closely to them to fully understand their business. I want to understand the why behind what they do. This allows me to position myself in a way to most benefit them and solve their problem. Here are some of my offerings: 1. Full Website Builds 2. Custom Theme Development 3. Website Redesign 4. Email Marketing 5. App Integrations 6. Shopify code edits (Liquid, Javascript, HTML/CSS) How do we proceed from here? I offer free consultations for all potential clients. It's vital that we establish that we are an excellent fit to work together. Click "hire now" to get started and I will schedule a call for us! Looking forward to getting to know you and your business, Jake

Firebase
Web Application
JavaScript
HTML5
Web Design
Shopify Templates
ERC-20
Firebase Cloud Firestore
Shopify Theme
ERC-721
App Development
Solidity
Web Design Plugin
Node.js
Shopify
MongoDB
ERC-1155
Shopify SEO
CSS
$40 hourly
- 5.0/5
- (16 jobs)
I specialize in JavaScript, PHP, Dart, Kotlin, and Swift. I thrive on developing Web/API/Mobile applications from the ground up, with a recent focus on crafting and integrating POS systems with major platforms such as Square, Clover, Heartland, and Toast. Notable projects I've worked on include: * Food ordering websites and mobile applications integrated with Square/Clover * Rewards system integrated with POS * Booking/Scheduling Systems * E-commerce websites * Messaging/Calling mobile applications * Music mobile application for Android and IOS. * IPTV player for mobile and TVs My preferred frameworks are: * React * Flutter * NextJs * ReactNative * Laravel

Firebase
Next.js
CRM Development
API Development
Scheduling Software
Booking Website
Point of Sale & Payment Systems
Mobile App Development
Kotlin
Swift
MySQL
MongoDB
React
Laravel
API Integration
$94 hourly
- 4.9/5
- (16 jobs)
I develop high quality iOS and Android mobile apps using Swift, Kotlin, Java, SwiftUI, Jetpack Compose, Firebase, and APIs as needed depending on project. Through my hard work and dedication to meet all project requirements, I've earned Upwork's Top Rated Plus rating! I am self-motivated, self-directed, dependable, reliable, and trustworthy. I've been an independent consultant for most of my career. I know how to conceive a project, get the work done independently, and successfully deliver the project. I excel at testing so when the project is done, it is done! No one likes to put together a large programming team where there are tons of duplicated effort and miscommunication. I can be your single-source developer for both Android and iOS phones and tablets! Most apps also need a back-end. No need for a separate web app programmer that can cause timeline problems and miscommunication! I can write the back-end utilizing Firebase then integrate it into all versions of your mobile app. Using a single source, you control the timeline, you avoid integration issues, and everything flows smoothly. You probably cut your delivery time in half! Every week, I develop mobile apps, cloud functions, and cloud tasks, mainly for Internet of Things using Bluetooth and Firebase. Every week, I am using: Kotlin Java Javascript, typescript, node.js (back-end) Swift Jetpack Compose SwiftUI Bluetooth (Android) Core Bluetooth (iOS) Firebase Auth (user authentication, login) Firebase Firestore (database) Google Cloud Functions Google Cloud Tasks (scheduled based on a trigger) Firebase Crashlytics Firebase and Apple push notifications Google sign-in Apple sign-in As an expert Mobile App Developer, other skills I can deliver: Flows, co-routines, async tasks, flow state. WiFi configuration: static IP, dns, enterprise, add and update. JSON serialization/parcelization. NFC tag reading. Develop Maven library. Network Service Discovery (NSD). Direct ipp open protocol for printers. REST - okhttp and retrofit expert for network calls, including calls to Amazon AWS. User accounts with encryption tokens. Encrypted keystore. Push notifications (Firebase, Apple, in-app). Silent package Installer and updater. Kiosks management. Google maps with location updates, custom map markers, annotated map markers. Custom User Interface features with custom graphics, backgrounds, themes, and styling. User authentication. Credit card validation. Stripe credit and debit card processing. Google Pay processing. Glide or Picasso image handling/transformation. Image upload as file or bitmap. Dark mode activation. Launch and welcome screens with terms of service. Multi-threaded environment solutions and multi-tasking co-routines. Dynamic updates of screens from incoming push notifications. Phone dial, messaging, camera photo-taking, gallery browsing. Backwards compatibility to older versions of Android. Forwards compatibility to latest versions of Android. Room database. App publishing on Google Play Store and Apple App Store. App testing on Firebase. Firebase/Maps API keys. Troubleshooting and expert debugging of crashes/bugs/memory leaks in legacy apps. Development environment: Gradle multi-flavor (multi-version) builds Github and bitbucket version control Slack or Jira team communication Figma wireframes Swagger REST API calls Github or Jira project management and collaboration Roll-outs to 50 million user install base A recent review on Upwork: "Stephanie did a superb job to make our Bluetooth hardware on-boarding via Android very reliable. She was able to find the corner cases and then find solutions for those corner cases! This was a difficult challenge as Bluetooth permissions, capabilities, and processes vary greatly between Android OS versions and devices. The on-boarding process is simple, elegant, and extremely user friendly. It has been an honor and pleasure working along side Stephanie." Other: Protocol Stacks, embedded systems, multi-tier networking systems Fortune 500 Java and C/C++ Trainer, Expert Witness Computer Science degree, Certified Project Management Professional Native English Speaker Available to work any timezone Background: I've used many protocol stacks: Point-to-point, TCP/IP, sockets, WiFi CDMA network, Bluetooth, other wireless networks. I've developed application systems with 4 tiers of communication layers: Device to Handheld, Handheld to PC, PC to mini-computer, mini-computer to mainframe. Embedded Systems: Transponder readings sent to handheld which then transferred data to desktop computer which interfaced to IBM mainframe. Cable system "set-top" box. Assembly code for micro-chips. Veriphone credit card readers with communication to mainframes/cloud. Java Trainer for Sun Microsystems (before they were bought out by Oracle) for 2 years. C/C++ Trainer for Intel University (part of Intel) for 2 years. Expert Witness in trial against a top insurance provider regarding their Java based application.

Firebase
Software Debugging
Database
API Integration
Java
Swift
Push Notifications
Android
iOS Development
Firebase Cloud Firestore
RESTful API
Android App Development
Kotlin
Bluetooth
JetPack
$40 hourly
- 5.0/5
- (37 jobs)
✅ 100% Client Satisfaction ✉️ Fast Response ☎️ Open for interviews and video calls Need a website or web application that truly stands out? I’ve spent the last 4+ years helping businesses and individuals bring their ideas to life through custom designs, smart automations, and seamless integrations. Whether it’s a sleek website or a robust web app, I’m here to create something that works beautifully and gets results. I’m passionate about what I do, and as a JavaScript specialist, I make sure every project is crafted with care and precision. Here are some key aspects I prioritize in my work: ✔ Beautiful, user-friendly website designs ✔ Responsive and mobile-friendly layouts ✔ Seamless API integrations and automations ✔ Optimized and scalable web applications ✔ Clean, SEO-friendly code standards ✔ Performance-focused solutions Feel free to reach out with any questions or project ideas—I'm always happy to discuss how we can create something amazing together.

Firebase
React
API
Web Development
Hugo
Full-Stack Development
Shopify
Front-End Development
Tailwind CSS
CSS
JavaScript
Next.js
Node.js
HTML
WordPress
$105 hourly
- 5.0/5
- (9 jobs)
I’m a Full-Stack Software Engineer with over 15 years of experience in developing innovative web and mobile applications. My expertise spans a range of technologies including Java, Python, Swift, and modern frameworks such as Spring Boot, FastAPI, and more. Whether you need a robust web application, a sleek iOS app, or efficient RESTful APIs, I’m here to bring your ideas to life. 🔹 Skills & Expertise: Web Development: Java, Python, JSP, HTML/CSS, Spring Framework, Spring Boot, FastAPI, RESTful APIs Mobile Development: iOS App Development using Swift Database Management: MySQL, Oracle, PostgreSQL Cloud Platforms: Azure, AWS, Google Cloud Platform DevOps: GitHub Actions for CI/CD, Azure, AWS API Tools: Swagger, Postman I have a proven track record of creating efficient and scalable solutions for diverse clients. My approach combines deep technical expertise with a keen eye for detail and a commitment to delivering high-quality results. 🔹 Services Offered: Web Application Development: Full-stack development, from front-end design to back-end functionality. iOS Mobile Application Development: Development of custom iOS applications using Swift. API Development & Integration: Design, development, and integration of RESTful APIs. Cloud Solutions: Deployment, management, and optimization on Azure, AWS, and Google Cloud Platform. DevOps Solutions: CI/CD pipelines setup using GitHub Actions/Azure, version control, and automated testing. Database Solutions: Design, optimization, and management of databases for MySQL, Oracle, and PostgreSQL. 🔹 Why Choose Me? Versatility: I offer a broad range of skills to tackle both web and mobile development projects. Experience: My experience includes both large-scale enterprise applications and smaller, agile projects. Problem Solver: I approach each project with a focus on understanding client needs and delivering solutions that meet those needs effectively. Communication: I prioritize clear and timely communication to ensure that projects stay on track and meet your expectations. Quality Assurance: I adhere to best practices in coding, testing, and deployment to ensure the highest quality of work. 🔹 Let’s Work Together! If you’re looking for a skilled and reliable software engineer to bring your project to life, let’s discuss how I can help you achieve your goals. Contact me today to get started!

Firebase
Swift
RESTful API
CSS
HTML5
Google Cloud Platform
API Development
Mobile App Development
Hibernate
iOS Development
Web Service
Spring Boot
MySQL
Azure Cosmos DB
Python
$75 hourly
- 5.0/5
- (34 jobs)
Senior Flutter Mobile and Node.js Developer with expertise in CI/CD pipelines, Flutter Web, BLoC state management, pixel-perfect UI implementation, Rest API and Firebase integration, database architecture, and deploying secure infrastructure on Heroku and AWS.

Firebase
Dart
Firebase Cloud Firestore
Project Plans
RESTful API
PostgreSQL
Flutter
Mobile App Development
Mobile App
User Authentication
MySQL
Node.js
Database Design
$60 hourly
- 4.9/5
- (11 jobs)
I offer a full range of services for developing websites, web applications, and mobile applications, from concept to the creation of a polished, professional product. I also provide support for maintaining and updating existing projects. With over 5 years of experience, my technical knowledge and problem-solving skills enable me to create high-quality, user-focused products. I specialize in delivering clean, responsive, and scalable solutions to clients worldwide. Key strengths and skills: – Full-cycle development for websites, web apps, and mobile apps – Expertise in creating responsive and scalable products – Proven track record of delivering top-notch solutions globally

Firebase
Tailwind CSS
Redux
React Native
Git
Web Development
SCSS
React
HTML5
Conversion to HTML
PSD to HTML
JavaScript
CSS
Landing Page
Figma
$70 hourly
- 5.0/5
- (20 jobs)
I’m a developer with experience in building websites for small and medium sized businesses. I specialize in building static websites and ecommerce websites on WordPress/Woocommerce.

Firebase
Shopify
Shopify Apps
React
Next.js
WordPress
TypeScript
Redux
JavaScript
HTML
Node.js
$90 hourly
- 5.0/5
- (15 jobs)
For over a decade, world-series winning professional baseball teams, top universities, premier hospitals, VC-funded startups, digital agencies, marketing firms, and small business owners have placed their trust in me for their critical tech projects - and you can too, if you want. I’m Pat, a senior-level software engineer from the USA. And if you're looking for... Someone you can trust to deliver quality work, and — above all — tangible results, then you are in the right place. Because there's a good chance you need more than a freelancer to do a task; you need a collaborator who’s successfully weathered the storm, time and time again. That's why when we work together, you're NOT getting: ❌ Someone diving into the "deep end" for the first time ❌ Unanticipated budget "surprises" ❌ Final products that miss the mark ❌ Security vulnerabilities ❌ Someone whose stretched too thin across projects ❌ A lack of transparency and communication ❌ Nonexistent post-project support Instead, you get a professional who: 💰 Respects the weight of your decisions 💰 Values the trust you place in them 💰 And is committed to delivering results. Whether you're looking to: ✅ Build ✅ Refine ✅ Innovate ✅ Troubleshoot ✅ Or simply seek advice... Consider it done. I bring over a decade of expertise to the table, and even 'Top Rated' and 'Rising Talent' accolades from Upwork (when I first started on here). If you only need someone to write some code here and there, I'd look elsewhere. Rather, I'm here to help you sidestep stress, make informed decisions, and breathe life into your ideas. So, now that you know a bit about me... Here’s how I’ve brought my clients' visions into reality, and how I may be able to do the same for you... 🚀 Architected 20k-message/day chat system, boosting engagement (Previous Employer) 🚀 Devised email platform, enhancing deliverability and message-to-market match (Own Company) 🚀 Achieved 87% cost cut migrating AWS to Heroku (Upwork/Agency Client) 🚀 Engineered Stripe system, optimizing ed-tech transactions (Upwork/SaaS Client) 🚀 Built custom headless CMS for rapid content creation and testing (Own Company) 🚀 Performed security audits, eliminating fraudulent Stripe charges (Upwork/Agency Client) 🚀 Implemented workflow system, reducing complexity (Own Company) 🚀 Optimized Shopify store, boosting speed by 20% and SEO (Upwork/E-commerce Client) 🚀 Migrated NextJS codebase to Google Cloud (Upwork/SaaS Client) 🚀 OAuth integrations for Facebook, Google, Twitter (Upwork/SaaS Client) 🚀 Meta Pixel and GTM audit (Upwork/Youtube Influencer) 🚀 Audited complex AWS setup, resulting in reducing monthly bill from $120 to $0.05 (Upwork/Agency Client) 🚀 Self-taught PHP/MySQL, building innovative medical stock alert system over SMS (Peace Corps Volunteer) 🚀 Built data dashboards to optimize ticket sales (MLB) 🚀 Created HIPAA-compliant cloud systems for a leading hospital's research (Hospital) 🚀 Developed an online platform for a premier university, enhancing e-learning (University) 🚀 And much more... In fact... Over the years, I've sharpened my skills to deliver not just robust technical solutions but also innovative strategies that strengthen your business. I can help you with things like: 👉 Creating Dynamic, Data-Driven User Interfaces 👉 Developing Robust and Scalable APIs for Mobile and Web Applications 👉 Optimizing Frontend Performance, Enhancing User Experience 👉 Ensuring Website Accessibility and Compliance 👉 Architecting and Implementing Scalable Backend Systems 👉 Debugging and Refactoring Legacy Code for Performance 👉 Strategizing and Executing Cloud Migrations or Optimizations 👉 Developing and Integrating Secure Payment Systems 👉 Optimizing E-comm Stores for Better Conversions 👉 Performing In-depth Security Audits and Fortification 👉 Creating Custom, Efficient Content Management Systems 👉 Crafting and Optimizing Data Models for Scalable Applications 👉 Designing and Implementing API Integrations 👉 Providing Strategic IT Consultation and Roadmap Planning 👉 And much more! So, with that said, here's my promise to you: From concept to code, your vision is safe with me. Remember, you don’t just get a coder. You get a collaborator who works to understand your business, navigate its challenges, and craft solutions that just make sense for you. Expect transparent communication, strategic problem-solving, quality, flexibility, proactive initiative, and security, all wrapped in one. So... If you are ready to make smarter decisions, ditch the stress, and actually see your ideas come to fruition... Send me a message now. Pat

Firebase
Ruby on Rails
Ruby
AWS Lambda
Next.js
Stripe
React
JavaScript
Firebase Cloud Firestore
Google Cloud Platform
Golang
Python
Node.js
Phoenix Web Framework
Elixir
$40 hourly
- 5.0/5
- (5 jobs)
PROFILE I am a SwiftUI developer with experience in backend development, as well. I have put together full-stack apps that incorporate a a backend service created by myself, and I have build many applications utilizing existing backend services. I enjoy diving deep into complex topics and I am always looking for the next challenge. I am passionate and confident in the work I do and would love to work with you!

Firebase
REST API
MapKit
Core Location
SwiftUI
Swift
Database
XML
Tailwind CSS
React
JavaScript
Node.js
TypeScript
ExpressJS
Responsive Design
$120 hourly
- 5.0/5
- (22 jobs)
🚀Empowering Businesses Through Innovative App Development and Automation🚀 Welcome to my profile! As a versatile developer and automation expert, I specialize in transforming businesses through cutting-edge web and mobile applications. With a strong foundation in Bubble.io and extensive experience in business automation, I deliver solutions that drive growth and efficiency. 🎯Comprehensive Solutions for Diverse Needs🎯 Whether you're a startup looking to make a mark or an established enterprise seeking to optimize your operations, I have the expertise to meet your needs. From custom app development to seamless integrations, I focus on creating solutions that are as unique as your business. 💻Key Skills and Services💻 - Web and Mobile App Development: Skilled in creating intuitive, responsive applications that enhance user engagement and meet business objectives. - Business Automation: Expertise in streamlining workflows using advanced automation tools, reducing costs, and improving productivity. - API Integration: Proficient in integrating various APIs to extend the functionality of your applications, including well-known services like Open AI, HubSpot, HighLevel, Google, and more. - Collaboration and Communication: Known for clear, proactive communication, ensuring projects progress smoothly and clients are always in the loop. 🤝A Unique Approach to Development🤝 I combine technical prowess with strategic insight, ensuring that each project is not only functional but also scalable and ready for future growth. My focus on comprehensive documentation and collaboration tools, like detailed notes and Loom videos, ensures that transitions are smooth and teams can work cohesively. 🏔️Ready to Elevate Your Business?🏔️ Let's connect! Review my portfolio to see the diverse projects I've undertaken, and reach out to discuss how I can help your business achieve its goals through innovative technology solutions.

Firebase
Microsoft PowerApps
Minimum Viable Product
Low-Code Development
No-Code Development
Web Application
Firebase Cloud Firestore
Android
Android App Development
iOS
iOS Development
Flutter
Mobile App Development
Hybrid App Development
$80 hourly
- 5.0/5
- (5 jobs)
Experienced mobile and backend software developer with over 15 years of expertise. Skilled in designing, developing, and maintaining high-quality software solutions, and committed to delivering innovative and efficient results that exceed expectations. A collaborative team player who can contribute to project success.

Firebase
Back-End Development
Front-End Development
Mobile App Development
Unity
React Native
FlutterFlow
Amazon Web Services
React
Google Cloud Platform
Python
Full-Stack Development
$60 hourly
- 5.0/5
- (6 jobs)
I'm a principle software engineer with over a decade of experience designing, developing, and deploying complex web applications and APIs. I have deep expertise in front-end, back-end, and DevOps, and love working across the full stack. Key skills I bring to the table: - Front-End Development: React, Next.js, Svelte, Vue.js, Nuxt.js, TypeScript, Material UI - Back-End & API Development: Node.js (Express, Nest), Python (Flask, Django, FastAPI), PHP (Laravel), Ruby on Rails - Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes, CI/CD, TDD, Agile methodologies - Data & Machine Learning: Power BI, Tableau, TensorFlow, PyTorch, scikit-learn - Database Management: MySQL, PostgreSQL, MongoDB, DynamoDB, Supabase Recent client work highlights: - Google Chrome Extensions - Enterprise Next.js website (App Router) - Web Applications featuring AI integrations - Crypto Payment rails - Led a team of international developers I look forward to the opportunity to bring my expertise and passion to your project. Let's hop on a call and chat about how I can help!

Firebase
Front-End Development
Jest
API Development
GitHub
Next.js
TypeScript
MongoDB
CSS
HTML
ExpressJS
Node.js
React
JavaScript
Python
$35 hourly
- 5.0/5
- (29 jobs)
Hello! My name is Cody. I'm a mobile developer with particular expertise in building applications with FlutterFlow, Flutter, Firebase, Supabase, Cloud Functions, Edge Functions, and Buildship. I have solo-developed and published full-stack applications to the App Store, Play Store, and web with 1000+ daily active users. I can own every aspect of the development cycle and would love to bring your application to life! TECHNICAL PROFICIENCIES: ● Programming Languages: Dart, TypeScript, JavaScript, Python, SQL, Swift ● Mobile Development: FlutterFlow, Flutter, React Native, Xcode, Android Studio, Expo, CocoaPods ● Web Development: React, Redux, Gatsby, Node.js, Webpack, Shopify, Ruby on Rails, Google Analytics ● Automation: Zapier, Make.com, n8n, GoHighLevel, Buildship, Airtable ● Databases: PostgreSQL, Firebase, Supabase, SQLite, MySQL, MongoDB ● UI/UX Design: Figma, Tailwind CSS ● APIs & Tools: OpenAI, GraphQL, REST, Google Places, Firebase Cloud Messaging, Heroku, Netlify, Sequelize, Apollo, Git, AWS S3, Docker, Postman, Husky, Pandas ● Testing: Cypress, Jest Native, Jest

Firebase
Android App Development
iOS Development
Web Application
TypeScript
API Development
Web Development
Front-End Development
Back-End Development
ChatGPT API Integration
Supabase
Mobile App Development
Dart
Flutter
FlutterFlow
$80 hourly
- 5.0/5
- (2 jobs)
I'm a seasoned mobile app developer with a passion for creating innovative and user-friendly mobile applications. With over 10 years of experience in the industry, I've had the privilege of working on a diverse range of projects, from small startups to large enterprises. My goal is to help you turn your app idea into a reality and ensure it stands out in the competitive app market. Key Skills: - Mobile Platforms: iOS (Swift), Android (Java/Kotlin) - Cross-Platform Development: React Native, Flutter - Business Automation: Hubspot, Shopify, Keap, Cin7, Salesforce, Airtable, Quickbooks, Google App Script, ShipStation, B2BWave, BigCommerce, SOSInventory, Make/Integromat, Zapier, EmailParser, Slack, Teams - Backend Integration: RESTful APIs, Firebase, AWS - Database Management: SQLite, MySQL, MongoDB - Version Control: Git/GitHub - Testing and Debugging: Unit Testing, UI Testing - App Deployment: App Store, Google Play, TestFlight - Continuous Integration: Jenkins, Travis CI Let's Discuss Your Project: Whether you have a detailed project plan or just a rough concept, I'm here to help. Let's discuss your ideas, goals, and requirements to turn your mobile app dream into a reality. Feel free to reach out, and I'll be happy to provide a free consultation and quote for your project.

Firebase
Back-End Development
Front-End Development
API Integration
iOS Development
Android App Development
Mobile App Development
Flutter
React Native
Kotlin
Java
Swift
$70 hourly
- 4.7/5
- (26 jobs)
Are you seeking an accomplished developer with a track record of delivering projects used by millions of users? With over a decade of experience as a FAANG developer, including a prestigious tenure at Microsoft, I'm poised to turn your mobile app and web project aspirations into reality. My skill set spans a broad spectrum: - **Mobile Development:** I excel in Android and iOS development - **Cross-Platform Development:** React Native and Flutter - **Web Development:** React, NextJS, Angular, and NodeJS guarantees exceptional web solutions. - **API Integration:** My expertise lies in seamlessly integrating APIs and developing robust backends that can support millions of users. I prioritize security and scalability, drawing on my experience akin to FAANG developers to ensure flawless communication with external services. - **Design Excellence:** UI UX expert, I breathe life into your ideas, creating visually stunning, user-friendly apps and websites that captivate users. - **Bug Terminator:** I take pride in meticulous bug fixing, comprehensive testing, and proactive maintenance to keep your projects in top-notch condition, offering optimized performance and usability. Here's what sets me apart: - **FAANG & Microsoft Insights:** My journey includes significant time with tech giants like Microsoft, where I absorbed invaluable insights and innovative practices. - **Continuous Learning:** I'm committed to staying current with industry trends, ensuring your projects leverage the latest advancements in technology. - **Collaborative Approach:** Effective communication and collaboration are integral to my work. I work closely with clients to understand their unique needs and tailor solutions accordingly. - **Attention to Detail:** Rigorous code reviews and optimization are standard practice, guaranteeing that your apps and websites not only meet but exceed performance and usability expectations. - **Client-Centric Focus:** My success is measured by your satisfaction. Expect prompt support, regular updates, and a work ethic that mirrors the highest professional standards. I'm thrilled to offer my unparalleled expertise to drive your project's success. Let's initiate a conversation to transform your mobile app and web visions into reality. Contact me now for a swift and enthusiastic response. Your digital journey starts here! Keywords: iOS app development Android app development Cross-platform app development Hybrid app development Native app development Swift Objective-C Java Kotlin Xcode Android Studio UI/UX design Mobile app testing Web Development Website development Front-end development Back-end development Full-stack development HTML CSS JavaScript PHP Python Ruby Django Laravel Node.js React Vue.js Angular SQL MySQL PostgreSQL Cloud Computing Amazon Web Services (AWS) Google Cloud Platform (GCP) Microsoft Azure AWS Lambda Google Cloud Functions Azure Functions AWS Amplify Google Firebase Azure App Service Git GitHub Jira Confluence Docker Kubernetes DevOps

Firebase
.NET Framework
Laravel
Angular
React
Next.js
Node.js
MongoDB
Flutter
React Native
$80 hourly
- 5.0/5
- (2 jobs)
As a seasoned Senior Mobile Developer with over a decade of experience in the fast-evolving mobile app development landscape, I have honed an extensive skill set across a wide array of technologies including React Native, Flutter, Swift, Java, Kotlin, and more. My career has been marked by a commitment to excellence, innovation, and a proactive approach to embracing new technologies and methodologies. Throughout my extensive career in mobile application development, I've consistently pushed the boundaries of what's possible, leveraging cutting-edge technologies and methodologies to deliver outstanding results. My key achievements reflect a blend of technical innovation, strategic leadership, and a deep commitment to user experience: - Revolutionized cross-platform app development by spearheading projects that seamlessly integrated cutting-edge features like real-time messaging, payment integrations, and augmented reality, resulting in a 40% increase in user engagement and opening new revenue streams. - Transformed application performance through targeted optimizations, achieving a 30% reduction in load times and a 50% enhancement in responsiveness, which significantly improved user retention rates and app ratings. - Elevated code quality and reliability by leading the implementation of comprehensive unit and UI testing frameworks, achieving over 90% coverage and drastically reducing post-launch bugs and user-reported issues. - Accelerated development cycles and improved efficiency by pioneering the adoption of CI/CD pipelines and Agile practices, reducing time-to-market by 25% and fostering a culture of continuous improvement and innovation within the development teams. - Drove collaborative success with cross-functional teams, playing a pivotal role in the ideation, design, and launch of feature-rich applications. My leadership in adopting and advocating for modern architectural patterns and programming paradigms such as MVP, MVVM, and reactive programming significantly enhanced project scalability and maintainability. My approach to mobile development is user-centric and data-driven, focusing on creating seamless, intuitive, and innovative applications that meet and exceed user needs. With a proven track record of success, I am passionate about leveraging my skills to tackle new challenges and contribute to the success of dynamic, forward-thinking teams.

Firebase
Mobile App Development
Android
iOS
Dart
FlutterFlow
Kotlin
Java
Flutter
React Native
Swift
$70 hourly
- 5.0/5
- (7 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.

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
$60 hourly
- 4.8/5
- (5 jobs)
😊 Greetings, and thank you for visiting my profile. As a fervent Full-stack Developer with an added expertise in Backend development, I am committed to designing visually stunning and interactive web applications powered by React. My expertise encompasses the following areas: - Programming Languages: HTML, CSS, JavaScript, TypeScript, Python, and PHP.🚀 - Frameworks and Libraries: Django, Flask, React, Redux, Next.js, Tailwind CSS, Node.js, and NestJS. 💻 - Artificial Intelligence and Machine Learning: ChatGPT, Langchain, OpenAI Embeddings, Generative AI. 🤖 - Databases: MongoDB, MySQL, Firebase, and Supabase.🔍 - Version Control: Git, GitHub, SourceTree.🌳 - Project Management Tools: Trello, ClickUp, Jira, and Notion.📊 My aim is to not only meet but exceed your expectations by delivering solutions that are both effective and innovative. If you're excited to bring your vision to life, I encourage you to connect with me. Together, we can discuss how to turn your ideas into reality. Your project's success is my primary goal. Let's collaborate to create something truly remarkable.🔥

Firebase
Machine Learning
Landing Page
ChatGPT
Material UI
API Integration
Tailwind CSS
Responsive Design
TypeScript
JavaScript
Django
Flask
Python
Next.js
React
$70 hourly
- 5.0/5
- (11 jobs)
Hi! I wrote my first iPhone app in 2018, while I was in high school. In 2023 I graduated from the University of Chicago, where I studied economics, computer science, and machine learning. I offer software engineering and consulting services, specializing in mobile development. My primary area of expertise is native iOS Development, including iOS, watchOS, macOS, iPadOS, and tvOS. The technologies I use in development include: - SwiftUI - Swift Concurrency - Core Data - AVFoundation - UserNotifications - StoreKit - OSLog - XCTest - Firebase - RevenueCat - GoogleMobileAds Additionally, I'm happy to assist with UI/UX design, App Store publication, and price optimization through A/B testing. In delivering quality software I focus on two objectives: 1) Creating a seamless UX through a clean UI. Because even slight imperfections can accumulate negative reviews. 2) Delivering well-structured, modular code. Clean architecture is paramount in my approach to software development because it makes thorough testing feasible, and the codebase maintainable, saving time and money in the long run. SKILLS: Architecture: MVVM, dependency injection, MVVM + Coordinator, Redux, VIPER, MVC Languages: Swift, Obj-C, C, C#, Python, JavaScript, TypeScript iOS Frameworks: SwiftUI, CoreData, Swift Concurrency, StoreKit, UserNotifications, AVFoundation, UIKit, Combine, Foundation, Core Location, MapKit, HealthKit, SnapKit Payments: StoreKit, RevenueCat Debugging: OSLog Testing: XCTest (unit tests and UI tests), mocking, ViewInspector Firebase: Authentication, App Check, Cloud Firestore, Cloud Functions Technologies: GCD, ARC, Xcode, Git, Unix LLMs: LlamaIndex, Unstructured, RAG Development

Firebase
Payment Processing
App Store Upload
Reactive Programming
Clean Architecture
XCUITest
XCTest
SwiftUI
Objective-C
Swift
StoreKit
Core Data
Firebase Cloud Firestore
UIKit
iOS Development
$68 hourly
- 5.0/5
- (2 jobs)
Hi there! I'm a Senior Full Stack Developer with a specialized focus on payment gateway integration using Stripe and Twilio. With a robust background in both front-end and back-end development, I excel in creating seamless and secure payment solutions for startup websites. Over the years, I’ve had the privilege of collaborating with some renowned startups at their nascent stages, helping them secure millions in funding and generate revenue from their initial customer base. Notable names include Restream, Buoy Health, and Curology. - Restream: Founded 2015, 1.9 million organic visits/$922K. - Buoy Health: $28M raised over 7 rounds. - Curology: 5x increase in growth improving customer engagement. Here's what I bring to the table: - Specialized in integrating Stripe and Twilio for smooth and efficient payment processing. - Successfully worked with high-growth startups to develop scalable and secure payment systems. - Comprehensive Technical Skills ○ HTML, CSS, JavaScript, React, Angular, Vue.js ○ Node.js, Python, Ruby on Rails, PHP, Java, .NET ○ MySQL, PostgreSQL, MongoDB, Redis ○ Docker, Kubernetes, Jenkins, GitLab CI/CD ○ AWS, Google Cloud Platform, Azure ○ RESTful, GraphQL, third-party API integrations If you're a startup looking to integrate a robust payment system or enhance your existing one, let's connect. My goal is to help you achieve your milestones by leveraging my technical skills and industry experience. Looking forward to collaborating with you and contributing to your success! Thank you, Jonathan

Firebase
Amazon Web Services
PostgreSQL
MongoDB
ExpressJS
TypeScript
JavaScript
Node.js
React
ChatGPT
Twilio API
Stripe SDK
Stripe API
Twilio
Stripe
$45 hourly
- 5.0/5
- (3 jobs)
Hello! My name is Nam and I am a senior full-stack developer with 8 years of experience in the field. I'm a developer with experience in building and deploying applications end-to-end. From front-end, to back-end, including database, user experience and interface, cloud architecture, test automation, etc. It doesn't matter the kind of requirement, problem that needs to be solved, or an entire project up and running, you can count on me. Portfolio: 1. ARKivist: This plug-and-play WebAR platform for brands was featured in Forbes and Yahoo News. 2. Arora (#MakeUsVisible): This WebAR digital art platform and campaign reimagining public landscapes was showcased in NYC, Munich, Worms and GOOGLE I/O 2023. 3. Pollinate Art (fine art listing): Featured in Forbes & HYPEART 4. F3RN (web3 curation): Built on Lens Protocol 5. Blackbeard: Web3 scavenger game My skills including such as: - Javascript, Angular.js, Node.js, React.js, Redux, TypeScript, Tailwind CSS - Python / Django - MySQL, PostgreSQL, MongoDB - HTML5, CSS3, LESS, SASS, Bootstrap 3/4 - JSON, XML, REST API, Google API, AWS, Social APIs Thank you for considering my profile. I look forward to discussing your project in more detail.

Firebase
Smart Contract
Next.js
Tailwind CSS
Django
React Native
PostgreSQL
AngularJS
Core Java
Python
Java
Node.js
React
Web3
Blockchain
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