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Hire the best Mobile App Developers in Pennsylvania

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  • $45 hourly
    • 4.7/5
    • (24 jobs)
    Business-Minded No-Code Developer Specializing in Custom App Solutions I’m not just a developer; I approach every project with a business-first mindset to ensure your app not only functions but drives real business results. With years of experience helping small and medium-sized businesses build custom apps, I’m here to help you achieve specific objectives like improving internal processes, enhancing customer engagement, or boosting your online presence. Whether you’re looking to create an internal tool for HR and documentation, turn your website into a mobile app, revamp your mobile strategy, or even build an eCommerce platform from the ground up, I can take your idea from concept to completion. Here’s what I bring to the table: - Content-Driven and Educational Apps: I’ve built apps featuring videos, audios, and text for businesses aiming to share knowledge or content at scale. - MVPs for Startups: I specialize in helping startups turn wireframes into fully functioning prototypes that they can test and iterate. - End-to-End Project Management: From initial concept through final delivery, I manage the entire process, ensuring quality and timely execution while collaborating closely with you to bring your vision to life. - App Promotion & Growth Expertise: Beyond development, I help clients scale their apps with effective App Store Optimization (ASO) and paid search strategies, making sure your app gets noticed. - Complete App Development & Marketing Service: I offer a unique, all-in-one package that covers development, marketing, and scaling — a comprehensive service tailored to set your app up for success. If you’re looking for a developer who can build powerful apps while understanding your business goals, let’s talk!
    Featured Skill Mobile App Development
    Facebook Ads Manager
    HighLevel
    Automation
    App Marketplace
    App Store Optimization
    Mobile App Strategy
    App Design
    Mobile App
    Mobile App Design
    Mobile Advertising
    Live Chat Software
    Mobile App Localization
    Mobile App Redesign
    Smartphone
  • $45 hourly
    • 5.0/5
    • (49 jobs)
    Computer Science graduate from University of Notre Dame. I specialize in Flutter/FlutterFlow development with Firebase/Supabase backends. What I offer: - Cross-platform app development (iOS, Android, Web) - Flutter/FlutterFlow expertise - Real-time features development - Basic Solana cryptocurrency integration experience - AI chatbot integration via OpenAI APIs - Collaborative workflow using Jira for project tracking Featured Project: OneMind A progressive web app that enables group decision-making through a unique voting system. - Custom Solana token integration - Real-time voting functionality - Multi-language support
    Featured Skill Mobile App Development
    GitHub
    AI Mobile App Development
    Mobile App Development Consultation
    Mobile App Bug Fix
    AI Bot
    Figma
    Web Application Development
    Android
    iOS
    API Integration
    Firebase
    Supabase
    FlutterFlow
    Flutter
  • $25 hourly
    • 4.9/5
    • (80 jobs)
    Hi, I am located in Pennsylvania, USA and have been working as a Full Stack Developer for 12 years and 9 years of mobile app (iOS & Android) development with PHP, Laravel framework, MYSQL, JavaScript, JQuery, Wordpress, Drupal, API development, CSS3, HTML5, Objective C, Swift, Swift UI, Flutter, React Native, Firebase, and other web/mobile app development and testing tools. I also work with a small team of 4 which includes one creative UI/UX designer, one android app developer and a senior software/application tester.
    Featured Skill Mobile App Development
    Drupal
    WordPress
    Native App
    SwiftUI
    Laravel
    AWS Amplify
    Node.js
    Kotlin
    Flutter
    React Native
    Swift
    iOS Development
    Objective-C
    Hybrid App Development
  • $85 hourly
    • 4.7/5
    • (5 jobs)
    Do you need help with development of your business? Do you need help with software development for your business? That's exactly what I do to help my clients with.
    Featured Skill Mobile App Development
    Theme Development
    B2B Marketing
    Online Sales Management
    Blockchain
    Data Science
    Cold Calling
    Artificial Intelligence
    Software Development
    API Integration
    Web Application
  • $75 hourly
    • 4.6/5
    • (61 jobs)
    If you are looking for a motivated, safe set of hands to take the weight of your project off your shoulders and work with you to get the job done right, then let’s have a chat. Here’s how: 1. Send me an Upwork message 2. On Upwork message, click on the green “Schedule a meeting” button, choose 30 minutes and I will confirm a time slot. 3. That way we can hop on a strategy call to discuss your project further and make sure we are a great fit together. I am a motivated and creative Lexington, US based freelancer with over 10 years of successful freelancing in multiple areas of Web & Mobile development. I have experience in ReactJS, NextJS, NodeJS, AngularJS, JavaScript, Laravel, CodeIgniter, Cake PHP, Rest APIs, and WordPress. **Expert in React Native Mobile Applications** Enterprise level Web | Mobile applications ✔ Detailed experiences are: 1) Backend Development • PHP - Laravel MVC, CodeIgniter, Cake PHP • Node.js - Express, Socket.io, Meteor • Python - Django, Flask • MYSQL, MongoDB, NoSQL, Firebase 2) Front-end Development • Angular, React.js, NextJS, Vue.js • CSS/SCSS, HTML, JavaScript, Jquery 3) iOS | Android app Development • Swift, Java, Kotlin, React Native, Ionic, Flutter • RxJava, RxSwift • MVP, MVVM My priorities are - - Best quality - Bug-free - Delivery in a timely manner - Developing an app, testing it, and making sure users won't have any problems when using the final product; - Helping to choose the best tools for analytics, testing, marketing, reporting, and more.
    Featured Skill Mobile App Development
    Socket.io
    AWS Lambda
    PHP
    CodeIgniter
    Android App Development
    PostgreSQL
    React Native
    Swift
    iOS Development
    Firebase Cloud Firestore
    MongoDB
    Node.js
    Laravel
  • $150 hourly
    • 4.9/5
    • (59 jobs)
    Welcome to my profile! I am a seasoned AI Architect and Certified Bubble Developer specializing in crafting AI-powered applications that drive business innovation and efficiency. With a robust foundation in software engineering and over a decade of experience, I harness the transformative power of AI and NoCode tools to build sophisticated solutions with unparalleled speed and agility. My expertise lies in leveraging LangChain and NoCode platforms like FlowiseAI and Bubble.io to design and deploy progressive web applications that are not only scalable but also tailor-made to meet businesses' unique needs. By integrating these cutting-edge technologies, I ensure that my solutions are at the forefront of digital transformation, enabling enterprises to achieve their goals faster than ever. In addition to my proficiency with NoCode development, I have a deep understanding of Vector Databases and the creation of custom AI models. My particular focus is on developing Small Language Models (SLM) designed to serve specific niches. This specialization allows me to offer bespoke AI solutions that are finely tuned to the unique challenges and opportunities within various industries. My approach combines technical mastery with a keen insight into the business implications of AI, ensuring that every project not only meets but exceeds expectations. Whether you're looking to streamline operations, enhance customer experiences, or unlock new opportunities for growth, I am here to turn your vision into reality with the power of AI and NoCode development. If you're seeking an innovative partner to propel your business forward, let's connect and explore how we can achieve remarkable results together.
    Featured Skill Mobile App Development
    Microsoft PowerApps
    Bubble.io
    Artificial Intelligence
    Zapier
    Slack
    Shopify
    Wix
    Web Design
    HTML
    Bot Development
    Squarespace
    Web Application
    Make.com
    Ecommerce Website Development
    Business with 10-99 Employees
    Azure Machine Learning
    Firebase
    Natural Language Processing
    Firebase Cloud Firestore
    Google AutoML
    MySQL
    Firebase Realtime Database
    Machine Learning Model
  • $50 hourly
    • 5.0/5
    • (4 jobs)
    I'm a passionate and hardworking developer looking to help people & businesses in any way I can. My main skillsets are Game Development, Web Scraping, Desktop & Mobile App development, and Reverse Engineering. I have successfully launched mobile apps, completed large reverse engineering projects, and helped with game development. For game development I primarily work with Unity and Unreal, but I am adaptable and learn quick, so I can also help with other engines. I primarily use Flutter for mobile and desktop app development. I have experience reverse engineering video games, but can apply those skills to any type of software.
    Featured Skill Mobile App Development
    Reverse Engineering
    Unreal Engine
    C#
    Software Development
    Game Design Document
    Data Scraping
    Game Development
    Unity
    Desktop Application
    Game Design
    Dart
    Flutter
    Python
  • $125 hourly
    • 5.0/5
    • (3 jobs)
    My Design Portfolio: dropbox-dot-com/s/k3s4886w3vureof/_Portfolio-dot-pdf Anthony S. Deese, Ph.D., is a Professor and Department Chair for Electrical and Computer Engineering at The College of New Jersey (TCNJ). He recently served as Visiting Professor for the General Robotics, Automation, Sensing, and Perception Laboratory (GRASP) at the University of Pennsylvania (UPenn), during his 2022 sabbatical. During that sabbatical, he began his current work on application of Knowledge-Based Ordinary Difference Equation (KNODE) Model-Predictive Control (MPC) to dynamic microgrid optimization. Currently, Professor Deese is Chairperson of the IEEE Power and Energy Society PEEC Student Meeting Activities Subcommittee, tasked with supervising graduate student participation at conferences like the IEEE PES General Meeting. He is also a program evaluator for the Accreditation Board for Engineering Technology (ABET). Professor Deese recently organized, marketed, and taught a one-week summer bootcamp on Artificial Intelligence and Machine Learning for high school students; this camp attracted 35 participants in 2024 and brought in more than $70k to the institution. He also taught several courses on electrical system analysis and machine learning for high school students at the TUMO Center for Creative Technologies in Yerevan, Armenia. Professor Deese also maintained a successful YouTube Channel (@AnthonyDeesePhD) with 70+ videos on STEM topics as well as more than 65,857 views internationally. Professor Deese's most recent research is published in the IEEE Internet of Things Journal, IET Wireless Sensor Systems Journal, Proceedings of the IEEE/ACM International Symposium on Cluster, Cloud, and Grid Computing, as well as IEEE Transactions on Power Systems. His primary areas of expertise include machine learning for engineering applications, the Internet of Things and wireless sensor systems, nonlinear system analysis including power grids, mobile and web software development, as well as custom hardware prototyping. Professor Deese is active as a technical consultant, helping entrepreneurs turn their ideas into a reality with more than 20 years of experience in analog and digital hardware design as well as web and mobile software development. 2. More Information Anthony S. Deese, Ph.D. Technical Consultant Email: Anthony.Deese@gmail.com Site: anthonydeese-dot-com/consulting 3. Primary Areas of Expertise I offer consulting in the following areas: - The Internet of Things and Wireless Sensors - Machine Learning, Neural Networks, and Artificial Intelligence - Nonlinear Analysis and Optimization Including Power Systems - Custom PCB Fabrication and HW Prototyping - Mobile and Web Software Development (including React Native) - Teaching and Higher-Education Related - Grant and Proposal Writing (e.g., National Science Foundation) - Technical Paper Editing (e.g., IEEE Transactions) - Advanced MATLAB Simulation Development 5. Recent Consulting Example From November 2019 to June 2021, I provided hardware and software design consulting services for The Calm Device Company; they sell a small electronic device that generates specific types of low-power vibrations. When applied to sensitive areas like the neck, these vibrations have been shown to provide a substantial calming effect. The Calm Device Company offers a potential solution for those with anxiety problems, which does not require any vitamins of pharmaceuticals. I designed the prototype shown on their website. - Hardware Development - I designed and tested the first version of the hardware sold to customers. This hardware consisted of an: 1) Arduino SoC, 2) Li-Polymer charge management controller, 3) class-D mono amplifier, 4) buck/boost converter, 5) lithium-ion battery, and 6) small transducer to generate vibrations. This hardware also provided Bluetooth connectivity for communication with the mobile application described below. - React Native Software Development - I designed and tested a mobile application that employs the React Native Development Framework to ensure compatibility with both AndroidOS and iOS devices. This application: 1) communicates with the hardware mentioned above via Bluetooth Low Energy to determine when the device is used, 2) uploads this information to a private database within Amazon Web Services' DynamoDB Service, 3) allows the user or health service provider to privately log in and review recent usage, as well as 4) allows the user to make private notes within their record relevant to how and why they activated The Calm Device. Figure 1 provides a screenshot from that application. This work generated several working devices that were sold to the public. My work on this project was completed in June 2021 because the company needed more extensive engineering staff services.
    Featured Skill Mobile App Development
    Web Application
    Computer Engineering
    Raspberry Pi Firmware
    MATLAB
    Simulation Software
    Android App Development
    Software Development
    React Native
    Machine Learning
    Power System
    Wireless Communication
    Internet of Things
    PCB Design
    Microcontroller Design
    Arduino Firmware
    Circuit Design
  • $50 hourly
    • 4.7/5
    • (25 jobs)
    🌐 Worked with clients around the globe 🌎 24/7 Active listener & Communicator I have been working as a Full-Stack Developer for 7 years, primarily with the MERN Stack, VueJS, AngularJS, Python (Django & Flask), and PHP (Laravel). Throughout my career, I have built various web applications, ensuring seamless frontend and backend functionality. Additionally, I have experience integrating AI/ML features to enhance functionality and user experience. On top of that, I specialize in cloud deployment using AWS, Google Cloud, and Azure, ensuring applications are scalable, secure, and efficient. 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: -React.js, Angular, VueJS – Building responsive and user-friendly UIs -TypeScript & JavaScript – Writing maintainable and scalable front-end code -Tailwind CSS, Bootstrap, Material UI – Creating modern, responsive designs -Next.js & Nuxt.js – Optimizing performance and SEO for web applications -Frontend State Management – Expertise in Redux, Vuex, and Context API 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: -Node.js (Express.js, NestJS) – Developing scalable and efficient APIs -Python (Django & Flask) – Building secure and high-performance backend systems -PHP & Laravel – Developing robust, maintainable, and feature-rich web applications -Database Management – Expertise in MongoDB, PostgreSQL, MySQL, DynamoDB -Authentication & Security – Implementing OAuth, JWT, and role-based access control -REST & GraphQL APIs – Designing robust and optimized API solutions 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: -AWS (Lambda, S3, EC2, RDS, IAM) – Deploying and managing cloud applications - Google Cloud & Azure – Cloud infrastructure and application hosting - Docker & Kubernetes – Containerization and orchestration for scalability - CI/CD Pipelines – Automating deployments with GitHub Actions, Jenkins, and Bitbucket - Serverless Architecture – Building cost-efficient and scalable serverless applications 𝗔𝗜/𝗠𝗟 & 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴: - LLMs & Chatbots – Fine-tuning and deploying AI-driven conversational models - Data Engineering – Building and optimizing data pipelines with Apache Kafka & Spark - NLP & Sentiment Analysis – Implementing AI-driven analytics for automation Have a project in mind? Let's chat and explore how I can help bring your ideas to life Regards, Muhammad Ahad
    Featured Skill Mobile App Development
    Web Development Consultation
    WordPress
    PHP
    TypeScript
    CodeIgniter
    Web Scraping Software
    JavaScript
    AWS Lambda
    SaaS
    Bootstrap
    Angular
    HTML
    CSS
    Python
  • $75 hourly
    • 4.9/5
    • (66 jobs)
    I am a professional software developer with 25 years of experience. I focus on mobile app development for Android and iOS, web development, and cloud services. Throughout my career I have gained experience in many different technologies, from modern cloud, mobile, and web development architectures all the way back to mainframe systems. My app development experience includes location services, map integration, user authentication and user profile management, payment functionality, media playback including both audio and video, and in-app purchases. I can work with many services available from Amazon Web Services (AWS) and Google Cloud Platform (GCP). I am committed to producing a quality product. I always stand behind my work and communicate as much as I can. The more my client and I both know about what is being done, the happier everyone is.
    Featured Skill Mobile App Development
    ChatGPT
    Google Cloud Platform
    User Profile Creation
    Location-Based Service
    Firebase
    Amazon Web Services
    Node.js
    Java
    Kotlin
    Swift
    iOS Development
    iOS
    Android App Development
    Android
  • $80 hourly
    • 5.0/5
    • (6 jobs)
    💰Taken part in smaller and enterprise level projects (Web) with over 10,000 users. It is important to me not only to create a project, but also for it to be successful. 💎Why me? - 5+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 as a React, Vue, Nuxt, Next, Dart, JavaScript, TypeScript, Node.js, Golang, Python - 2𝟎+ 𝐬𝐮𝐜𝐜𝐞𝐬𝐬𝐟𝐮𝐥 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬 - Only Quality code - Сlear communication 💎 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 ✔️ React ✔️ Vue ✔️ Nuxt ✔️ Next ✔️ Three.js ✔️ React Hooks ✔️ React Query ✔️ Storybook ✔️ Redux ✔️ TypeScript ✔️ JavaScript ✔️ GraphQL ✔️ Web Sockets ✔️ Material UI ⚙️ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 ✔️ NodeJs ✔️ Stripe ✔️ TypeScript ✔️ JavaScript ✔️ GraphQL, Rest ✔️ Firebase 𝐎𝐭𝐡𝐞𝐫 Postman, AWS, Git, GitHub, Jira, Trello, Bitbucket, GitLab, Figma, Docker, Heroku, Vercel, CI/CD, Mapbox 𝐋𝐞𝐭'𝐬 𝐬𝐭𝐚𝐫𝐭 𝐜𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐢𝐧𝐠! Tech expertise: TypeScript, JavaScript, React.js, React-Apollo, React Storybook, Vue.js, Node.js, Python, Next.js, Nuxt.js, Redux, GraphQL, Stripe, Firebase, Axios, Twilio, Twilio API, Three.js, Web Sockets, Material-UI, Bootstrap, Tailwind, UI, UX, Figma.
    Featured Skill Mobile App Development
    Material UI
    Supabase
    Firebase
    NestJS
    Django
    React Native
    AWS Amplify
    Node.js
    Next.js
    React
    GraphQL
    JavaScript
    TypeScript
  • $85 hourly
    • 4.6/5
    • (48 jobs)
    Your business’ secret weapon - I work with ⭐ Fortune 500s, Start-Ups, and, Individuals ⭐ to navigate technologies like AI, blockchain, and complex software infrastructure, daily. Lead @ STAYKool Productions, Co-founder of Squizz Digital Signage (squizz.tv). I often serve as a domain expert, a leader, and a keystone member of any team I integrate with. During my decade+ of experience, I have designed, built, and released multiple SaaS products, individually and as part of a larger team. 📈 I can help your business succeed by: - Providing technical or software development support. - Updating your Android, IOS or Cross-platform app. - Performing technical due diligence. - Set up payment gateways using services like Stripe, Square, or BrainTree. - Integrating ChatGPT (or other forms of AI) into your business processes and workflows. - Creating sales and marketing funnels, that convert. - Orchestrating social media and Google Ads campaigns - which tug on heartstrings. - Identifying and addressing processes, and shortfalls inhibiting growth. - In addition to any other Admin or IT-oriented consultation roles. 🦄 A wearer of many hats in my own businesses and for past employers, I leverage that experience, in tandem with my professional contacts/team to efficiently grow your business and increase revenue. "Growth Hacking", if you will. Please ask questions! I'm happy to be a part of your team, even if it is for a short time.
    Featured Skill Mobile App Development
    Software Consultation
    IT Consultation
    Database Architecture
    Software Architecture
    Software Integration
    ChatGPT
    Amazon Web Services
    Linux System Administration
    iOS
    Android
    Web Development
    App Development
    Artificial Intelligence
    Software Systems Engineering
  • $30 hourly
    • 5.0/5
    • (1 job)
    Expert Flutter Developer | Firebase | Dart | Android | iOS I E-commerce I APIs expert I React js I Wordpress I Ecommerce I PHP I Laravel I Vue.js 🥇 Expert Flutter Developer Specializing in Robust Mobile App Development 🥇Expert in CMS Development. With 15+ years in web development and 10+ years focused on mobile development, I've had the pleasure of delivering high-impact applications for top-tier companies like Atena and Systems. My goal is to transform innovative ideas into reliable, scalable, and high-performing mobile solutions. 🌟 Top Achievements 🚀 Launched 30+ apps on the App Store and Google Play, with 70+ updates delivered 📈 Secured 200k+ downloads, maintaining a 4.8-star user rating across apps 🏆 Led multiple development teams, exceeding client goals and expectations across industries Why Choose Me? Whether you’re launching a startup or scaling an enterprise, I provide tailor-made solutions to bring your vision to life. My dedication to clear, open communication ensures that your project moves smoothly at every stage. 🔹 Passionate about collaborating on MVPs and startup ventures 🔹 Top-tier quality with fast delivery, all at competitive rates 🔹 Transparent and honest guidance, ensuring the best solution for your needs Key Strengths: 🛠️ Expert in Flutter, Firebase, and native mobile development 🛠️ Expert in CMS and Ecommerce 🔥 Deep knowledge of design patterns and tools like Figma 📚 Extensive experience across industries: healthcare, fintech, e-commerce, delivery management, travel, merchandise, travel, fleet management, tourism, Food and delivery etc. Let's Build Something Great Together! From creating visually appealing, high-performance apps to managing entire development teams, I’m here to help turn your ideas into reality. Let’s kick off with a complimentary 30 minute - 1 hour discussion to plan your next step toward success!
    Featured Skill Mobile App Development
    B2C Marketing
    B2B Marketing
    Figma
    Management Information System
    Odoo
    Business Travel
    Ecommerce
    Android App
    Map Integration
    Flutter
    iOS SDK
    Android SDK
    iOS Development
  • $50 hourly
    • 5.0/5
    • (1 job)
    I am a professional software developer with five years of experience. I focus on web application and website development, mobile app development for Android and iOS, and cloud services. I enjoy designing, developing and testing; I am committed to producing a quality product. I am dependable, I stand by my work and I am available and willing to communicate with every client.
    Featured Skill Mobile App Development
    iOS
    Android
    Firebase
    iOS Development
    Android App Development
    React Native
    Web Development
    Node.js
    HTML
    CSS
    Web Application
    JavaScript
    React
  • $250 hourly
    • 0.0/5
    • (0 jobs)
    ENGINEERING EXECUTIVE Engineering Leader for early-stage to large international companies. Champions a proactive and constructive organizational culture. Motivates teams to deliver difficult assignments and timely results. Builds and supports world-class, real-time, mission-critical mobile and Internet-based systems. Collaborates effectively with executives, technical staff, and customers. Challenges and influences all levels of an organization to drive performance.
    Featured Skill Mobile App Development
    Process Improvement
    Digital Transformation
    Strategy
    Sales Engineering
    Web Development
    AI Consulting
    Cloud Engineering
    Account Management
    Cross Functional Team Leadership
    DevOps
    Agile Software Development
    IT Project Management
    Engineering Management
  • $60 hourly
    • 0.0/5
    • (0 jobs)
    BazeWay LLC, Intermediate Web & Mobile Developer company We are a team of highly skilled developers specializing in web and mobile development, delivering scalable, high-performance solutions tailored to your business needs. With expertise in modern frameworks and backend technologies, we provide full-cycle development services—from UI/UX design to deployment and maintenance. ***Our Expertise - Web Development Frontend: React, Next.js, Vue, Angular Backend: Laravel, Node.js, Django, Flask, ASP.NET, Nest.js Full-Stack Solutions: Scalable, high-performance web applications with robust APIs - Mobile Development Cross-Platform: React Native, Flutter, Ionic Native iOS & Android: Swift, Android Java Native ***Why Choose Us? ✅ Full-Cycle Development – From concept to deployment ✅ Scalable & Secure Solutions – Best practices in architecture & security ✅ Agile & Transparent Workflow – Regular updates & client collaboration ✅ Proven Experience – Portfolio of successful web and mobile apps Let's work together to bring your ideas to life!
    Featured Skill Mobile App Development
    UX & UI
    Flutter
    Laravel
    Django
    React Native
    Next.js
    Node.js
    Python
    React
    Back-End Development
    Front-End Development
    Ecommerce Website
    Web Application
    Web Development
  • $39 hourly
    • 0.0/5
    • (0 jobs)
    * Full stack engineer * Proficient in Java, Spring boot, * Skilled at React.js, JavaScript, Node.js with Express * Mastering Expo mobile development framework and AWS Cloud platform. * Full project management from start to finish. * Regular communication is important to me, so let’s keep in touch.
    Featured Skill Mobile App Development
    International Development
    Scripting
    Script
    App Development
    Web Development
    Web Application
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    🚀 Principal Android Engineer | Android SDK, Jetpack, Kotlin & Scalable Solutions I'm a seasoned Android developer with 8 years of professional experience, having worked at Fortune 500 companies including Capital One, FedEx, and others. I have a passion for building robust, user-friendly mobile applications that are scalable and maintainable. 🔹 What I Offer: ✔️ Scalable Android app development with modern architecture (MVI, MVVM) ✔️ Seamless API integrations with Retrofit, OKHTTP, and gRPC ✔️ Robust testing strategies (JUnit, Espresso UI Testing) If you have an awesome idea or a business need for an Android app, I can make that a reality! Reach out to me to discuss your project!
    Featured Skill Mobile App Development
    Mobile App Testing
    Mobile App Design
    Mobile App
    Android Studio
    Android SDK
    Android App Development
    Android App
    Android
  • $125 hourly
    • 0.0/5
    • (0 jobs)
    I'm a front-end focused, full stack engineer with over a decade of experience across different industries and organization sizes. I love all things code; writing, reading, debugging, testing... but in my recent years I've come to appreciate planning, architecting and designing systems before coding. I've been working with JavaScript my entire career (vanilla JS, Node.js, React.js, React Native, RxJS, TypeScript, etc...) but my curiosity and self-reliant approach towards problem solving has lead me to significant experiences across tech stacks. I've built and deployed Docker images to AWS, written a white-label app deployment system in Ruby using Fastlane, tinkered with shared Gitlab CI include files to fix busted CI/CD pipelines, and the list goes on. All this to say I enjoy jumping in to unknown territory to figure out how things work and what needs to be done to make it work for me.
    Featured Skill Mobile App Development
    Product Development
    Mobile App
    App Development
    Kotlin
    Android App Development
    React Native
  • $75 hourly
    • 0.0/5
    • (0 jobs)
    Senior Software Engineer with 8+ years of hands‑on expertise building scalable web and mobile apps using React, TypeScript, Next.js, React Native, Tailwind CSS and Node.js. Passionate about clean architecture, mentorship, and delivering production‑ready code, I partner closely with product owners and designers to turn your vision into high‑performance, maintainable software. Let’s build something great together!
    Featured Skill Mobile App Development
    Tailwind CSS
    SCSS
    Redux
    Bash
    JavaScript
    Node.js
    TypeScript
    React Native
    React
    Web Application
    App Development
    Web Development
  • $60 hourly
    • 0.0/5
    • (0 jobs)
    My name is Alishia Mae Alterio. I have outstanding and special expertise in iOS and Android app development with 6+ years of experience. I specialize in developing high quality application for iOS and Android platforms.I have a solid application portfolio on Apple Appstore and Google Playstore. I have a good experience in developing (Objective C, Swift, iOS SDK), knowing of XML, SOAP, REST, JSON, SQLite, CoreData, CoreLocation, Realm, etc., - QR Codes, Bar Codes, VIN Scanner, NFC Tags Reading - In-App Purchase / Advertisement / Push Notifications/ GCM / Google Analytics. - Search functionality using Elastic Search Also knowledge with AR. - Interaction with backend - Restful / JSON / XML / PHP / .Net - Databases / Data Management/Data Classes - SQLite / MySQL / MongoDB/ PostgreSQL - Social Integration - Facebook / Twitter / Google+ / Youtube / Instagram / Linked In / Vimeo / Pinterest - Data analytics - Crashlytics / Firebase / Google Analytics / Crashreports - Google Maps / Apple Map kit / Geolocation / GPS / Location /Tracking ? Audio / Video Live Streaming. - Any Payment Gateway ,google checkout.etc - Photo & Video Sharing / Editor / Filter. To me your project will be my highest priority and my singular goal is to make sure that you are satisfied with my performance. Your success will be my success.
    Featured Skill Mobile App Development
    iOS Development
    React Native
    Swift
    Android App Development
    Microsoft Word
    Android
    Microsoft Excel
    Objective-C
    PHP
  • $45 hourly
    • 4.5/5
    • (17 jobs)
    Hello, my name is Jay. I'm currently living in Philadelphia, PA. In 2018 I resigned from a long term, senior development position (10 years total. 9 of which were remote full time, and 1 year working in our Minneapolis office). I decided to move into freelancing and possibly freelance to permanent if I find the right opportunity. Beyond software development, my strengths are: Communication, Finding the Right Business Solutions & Delivering what the Customer and Users Expect. Since beginning software development, I've learned that consistent and clear communication is the main key to success in the completion of software projects. I've worked mostly in eCommerce, credit card processing, payment processing and hardware API integration, mobile Xamarin development, SQL Server programming & database design. Also, recently have completed a large Stripe integration. Most of my work, from a platform standpoint, has been in C#, VB.NET, ASP.NET Core, ASP.NET Web Forms, Blazor, Entity Framework Core & Xamarin. I've completed multiple large software projects on a freelance basis from the ground up. From specifications planning, programming & launching into production. The first of which led to my 10-year role at my previous job after the initial build was complete and in production. Please reach out to discuss your projects!
    Featured Skill Mobile App Development
    Stripe
    Xamarin
    VB.NET
    Syncfusion
    Blazor
    Ecommerce Website Development
    Telerik
    Microsoft SQL Server Programming
    Payment Gateway Integration
    ASP.NET Web API
    C#
    ASP.NET
    ASP.NET Core
  • $25 hourly
    • 4.3/5
    • (10 jobs)
    Looking for a highly skilled Mobile App Developer specializing in Flutter with a proven history of delivering exceptional, customized solutions? You’re in the right place! Here’s why I’m the perfect fit for your project: ✅ Over 5 years of experience in mobile app development ✅ 100% Client Satisfaction and an outstanding job success rate ✅ Cost-effective solutions customized to your budget ✅ Fluent English and prompt communication, ensuring seamless collaboration If you’re seeking a full-time freelance Flutter developer who consistently delivers high-quality results with a strong problem-solving mindset, let’s connect! Simply click ‘Invite to Job’ to discuss how we can collaborate to bring your vision to life. I’m excited to explore your project requirements and show how my expertise can add value. What My Clients Says: Barkat’s commitment to excellence and his problem-solving skills make him an outstanding developer. I look forward to working with him on future projects. -⭐⭐⭐⭐⭐ Why Choose Me? 💥 Proven Track Record: I’ve successfully delivered over 20+ projects with exceptional client feedback. 💥 Clear Communication: You’ll never be left in the dark—I provide clear, timely communication throughout the project lifecycle. 💥 Solutions-Oriented Approach: I proactively address challenges, ensuring every project meets its objectives efficiently. My Streamlined Process for Building Your App: ✅ Requirements Gathering: I ensure a deep understanding of your project needs and objectives. ✅ UI/UX Design: Crafting intuitive, engaging designs using Figma or XD for your review and approval. ✅ Development: Building your app using Flutter, integrating REST APIs, and configuring databases (e.g., Firebase, SupaBase, MongoDB). ✅ Testing & Feedback: Delivering a functional version for your feedback, ensuring that all requirements are met. ✅ Final Delivery: Making final adjustments and delivering a polished, fully functional app ready for launch. What You Can Expect from Working with Me: With over 4 years of experience in mobile app development, backed by a strong background in computer science, I’ve built 20+ apps across various industries, including: ✔ Food delivery apps ✔ On-demand service apps ✔ Marketplace apps ✔ Home services apps ✔ Taxi & Ride-hailing apps ✔ Health and fitness apps ✔ Video & Live Streaming apps ✔ Finance & Payment apps ✔ Real estate apps ✔ E-commerce apps ✔ Social media & Messaging apps ✔ AI-based apps (Wellness, Learning, Chatbots) And much more! What You’ll Gain from Working with Me: ✔ Custom Flutter Mobile App Developer for your unique needs ✔ Flutter Developer for IoT, AI, Security, and Digital Agency apps ✔ Expertise in building apps for construction, finance, e-commerce, and more ✔ Proficiency in creating Android & iOS apps using Flutter ✔ Bug fixes and performance enhancements for your existing Flutter apps Ready to collaborate on your next project? If you’re searching for a dedicated, experienced Flutter developer who consistently delivers top-quality mobile apps, I’m excited to be a part of your journey! 🚀 Reach out to me directly via my Upwork profile, and let’s discuss how I can help bring your vision to reality. I’m also available for a quick call if you prefer to chat about your project in more detail. ❗ Check out my portfolio for more examples of my work! ❗
    Featured Skill Mobile App Development
    Android App Development
    iOS Development
    Hybrid App Development
    Mobile Development Framework
    Mobile App
    Mobile QA
    Flutter Stack
    Mobile App Design
    Firebase
    FlutterFlow
    Dart
    Flutter
    Android SDK
    Android
  • $35 hourly
    • 0.0/5
    • (0 jobs)
    Hi, I’m Noah, a highly skilled and passionate Software Engineer with over a decade of experience in delivering cutting-edge solutions that transform ideas into impactful realities. Throughout my career as a Software Engineer, I have dedicated myself to crafting innovative software solutions across diverse domains, building a reputation for excellence, reliability, and visionary thinking. Throughout my career, I have had the privilege of working with high-profile organizations, including the U.S. Department of Defense and the U.S. Marine Corps, where my expertise contributed to mission-critical projects with rigorous standards for performance, scalability, and security. These experiences have honed my ability to tackle complex challenges with precision, adaptability, and a relentless focus on delivering results that exceed expectations. I specialize in creating exceptional software solutions for mobile, web, desktop, IoT devices, and AI integration, leveraging the latest frameworks, modern UI/UX trends, and industry-best security practices to deliver robust and user-friendly applications. My deep knowledge spans all major platforms and operating systems, ensuring that I can design and develop solutions tailored to your unique needs, no matter the environment. What sets me apart: Versatility: My expertise covers a wide range of technologies and platforms, from Flutter and React Native for cross-platform mobile development to cutting-edge AI integrations with OpenAI and machine learning frameworks. Innovation-Driven Design: I stay ahead of industry trends, incorporating the latest UI/UX methodologies to create intuitive, visually stunning, and seamless user experiences. Security-Centric Development: I prioritize secure coding practices to ensure your applications are resilient against vulnerabilities while meeting industry compliance standards. IoT and Embedded Systems: With experience in IoT and hardware integration, I bring innovative solutions to life, connecting devices and creating smarter ecosystems. Proven Leadership: As a team leader and mentor, I excel at guiding teams and projects from concept to completion, ensuring timely delivery and uncompromising quality. Whether you need a polished mobile app, a scalable web platform, a high-performance desktop application, or an IoT solution, I bring the technical skills, creativity, and dedication to deliver solutions that drive value and growth for your business. Key Skills: Programming Languages: Dart (Flutter), JavaScript (React, Node.js), Python, C#, C/C++, TypeScript, SQL, HTML, CSS, Swift, and more. Platforms: iOS, Android, Windows, macOS, Raspberry Pi, and cloud environments (AWS, Firebase, Google Cloud). Specializations: Cross-platform development, AI integration, IoT devices, modern UI/UX design, security, .NET Framework, Database Design / Implementation, and automation. Tools & Technologies: Firebase, AWS, OpenAI, SDL2, AdMob, RevenueCat, and more. Why Choose Me? My approach is client-focused and results-driven. I take the time to understand your unique vision, goals, and challenges, ensuring that the solutions I deliver are not only technically sound but also strategically aligned with your objectives. Communication is key, and I am committed to providing clear, consistent updates throughout the project lifecycle. Let’s work together to bring your ideas to life with exceptional software tailored to your needs. Whether you're a startup, a small business, or an enterprise, I’m here to help you achieve your goals and stand out in a competitive market. Feel free to reach out, and let’s discuss how I can contribute to your success. Together, we’ll create something extraordinary!
    Featured Skill Mobile App Development
    Firebase
    C#
    C
    Swift
    Dart
    JavaScript
    NodeJS Framework
    Flutter
    .NET Framework
    Android App Development
    iOS Development
    AI App Development
    Web Development
    Software Development
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    ⭐⭐⭐⭐⭐ "Justin is an exceptional mobile developer... His expertise spans designing beautiful apps, optimizing accessibility, managing complex memory issues, and seamless App Store releases. He excels at explaining technical concepts and tackling any challenge, delivering top-quality results from simple CRUD apps to advanced low-level tasks." - Ian Zuber, Bayer Pharmaceuticals ⭐ Specializing in high-impact iOS applications - from startup MVPs to FDA-regulated enterprise solutions. Having led mission-critical apps at Bayer Pharmaceuticals and witnessed the challenges of complex technical projects, I understand that choosing the right developer is crucial for your project's success. Investing in development can be daunting - technical decisions made early can significantly impact your business outcomes. That's why I bring enterprise-grade practices to every project, whether you're launching a new product or need to rescue a stalled development effort. ⭐Why Partner With Me:⭐ ✅ Senior iOS Expertise - Deep mastery of Swift, SwiftUI, and native frameworks ✅ Enterprise Track Record - Leading PassLink's international launch (Q1 2025) ✅ Active Publisher - Currently shipping multiple App Store products ✅ Problem Solver - Experience rescuing and optimizing existing applications ✅ Focused Partner - Direct communication, no ego, results-driven approach ⭐Recent Success Stories:⭐ ✅ PassLink (Bayer Pharmaceuticals, App Store Launch Q1 2025 - Enterprise-grade iOS and Android platform - Engineered secure file transfer system handling critical medical updates - Custom USB protocol implementation for regulated device communication - Advanced offline sync and real-time processing - International deployment with multi-language support ✅ ColorSense (iOS App Store) - Professional color analysis utilizing CIEDE2000 algorithm - Modern SwiftUI architecture with CoreML integration - Real-time camera processing and color matching - Seamless CloudKit sync and StoreKit implementation - Universal iOS app optimized for iPad ⭐Open Source Contributions:⭐ ✅ Mozilla Firefox iOS (150M+ Active Users) - Active contributor to Mozilla's flagship mobile browser - Implemented accessibility improvements for critical UI components - Enhanced safe area constraints and layout management - Successfully navigated Mozilla's rigorous code review process - Applying enterprise-grade accessibility standards to benefit millions of users ⭐I help clients succeed through:⭐ ✅ Complete iOS Development - Native consumer and enterprise apps - Universal iOS/iPad applications - Complex hardware integrations - Performance optimization - Security implementation ✅ Technical Excellence - Swift, SwiftUI, UIKit mastery - CoreData and CloudKit - StoreKit and subscriptions - CoreML and Vision - Real-time processing ⭐Services:⭐ ✅ New App Development - Transform your idea into reality - MVP design and development - Full App Store deployment - Scalable architecture ✅ Enterprise Solutions - Secure authentication systems - Hardware integration - Cross-platform development - Performance optimization ✅ App Revival & Updates - Code modernization - Performance improvements - Feature implementation - Security hardening ⭐What Sets Me Apart:⭐ ✅ Direct Communication - You work with me directly, ensuring consistent quality ✅ Rescue Experience - Expertise in optimizing and revitalizing existing apps ✅ Enterprise Standards - Every project benefits from FDA-regulated development experience ✅ Business Focus - Technical decisions aligned with your business goals My approach combines senior-level engineering with clear communication and reliable delivery. Whether you're launching a new product or scaling an existing one, I bring enterprise-grade practices to ensure your success. I'm passionate about solving complex challenges and building solutions that make a difference. Let's discuss how I can help bring your vision to life. ⭐Available for:⭐ ✅ iOS app development ✅ Enterprise solutions ✅ Technical architecture ✅ MVP development
    Featured Skill Mobile App Development
    OpenAI API
    ChatGPT
    Firebase
    Swift
    Apple HealthKit
    Native App Development
    Apple Watch
    iPad App Development
    iOS Development
  • $25 hourly
    • 5.0/5
    • (4 jobs)
    - 15+ Years of Experience in Web & Mobile Development - Expert in UI/UX, Frontend & Backend Development - Designed & Developed 100+ Websites & Apps - Full-Stack Solutions: From Concept to Launch - Worked with Industry Leaders & Startups Alike - High-Performance, Scalable & User-Centric Design - Clear Communication & On-Time Delivery I specialize in designing and developing high-quality, responsive web and mobile applications that are visually stunning and functionally seamless. My expertise lies in blending creative design with technical execution to build digital experiences that drive engagement and results. I specialize in: ✅ Custom Website & Web App Development (E-commerce, SaaS, Corporate Websites, Landing Pages) ✅ Mobile App Design & Development (iOS & Android – Native & Hybrid) ✅ UI/UX Design & Prototyping (Figma, Adobe XD, Sketch) ✅ Full-Stack Development (React.js, Vue.js, Angular, Node.js, Python, PHP) ✅ CMS & E-Commerce Development (Shopify, WordPress, Webflow, WooCommerce, BigCommerce) ✅ Performance Optimization & SEO Best Practices ✅ API Development & Integration (RESTful, GraphQL, Third-Party APIs) ✅ Cross-Platform & Responsive Design Tech Stack & Tools I Work With: - Cloud: AWS, Firebase, Vercel, Netlify - Frontend: React.js, Next.js, Vue.js, Tailwind CSS, Bootstrap - Backend: Node.js, Express.js, Django, Laravel - Mobile: React Native, Flutter, Swift, Kotlin - CMS & E-Commerce: Shopify, WordPress, Webflow, Magento - Databases: MySQL, PostgreSQL, Firebase, MongoDB - API & Automation: RESTful APIs, GraphQL, Zapier, Stripe, Twilio - Design Tools: Figma, Adobe XD, Photoshop, Illustrator I am committed to open and transparent communication, ensuring a seamless experience from project inception to completion. Whether you're looking to build a new website, redesign an existing one, or develop a mobile app, I bring a strategic and problem-solving mindset to every project. Let's collaborate and turn your vision into reality. Reach out today!
    Featured Skill Mobile App Development
    JavaScript
    PHP
    Next.js
    ExpressJS
    Vue.js
    Node.js
    Magento 2
    Flutter
    Tailwind CSS
    Shopify
    WordPress
    React
    React Native
    MongoDB
    MySQL
    CMS Development
  • $99 hourly
    • 0.0/5
    • (0 jobs)
    My simple goal is to help small businesses grow, generate leads, to increase revenue, to become more profitable, by having a major presence in the digital marketplace. I will utilize every marketing technique or trick available, new or old. I have 20 years of experience in this Computer and Digital Marketing Space. Helping over 100+ Businesses in every industry. My Services Include: Professional Web Design/Development, Mobile Website Design, Local SEO, E-Commerce Solutions, Lead Generation, Reputation / Brand Management, Social Media Services, Paid Search Management, Mobile App Design/Development, Search Engine Optimization, Keyword Management, Graphic Design Services + more.
    Featured Skill Mobile App Development
    Adobe Dreamweaver
    Social Media Optimization
    Graphic Design
    Web Design
    Facebook
    Social Media Marketing
    SEO Audit
    Search Engine Optimization
    Social Media Management
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