Hire the Best PhoneGap Developers

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Rating is 4.8 out of 5.
4.8/5
Based on 191 client reviews
Andrei D.

Yerevan, Armenia

$29/hr
5.0
25 jobs

Hi, I can help you turn your app ideas into real mobile apps for Android and iOS. 🤖 I can take ownership of the entire technical side: architecture, Android or Flutter development, backend integration, Firebase, Supabase, testing, debugging, and release preparation. My 10+ years of development experience, combined with AI tools in my daily workflow, allow me to move faster while still taking full responsibility for code quality, edge cases, and the final delivery. 🚀 Launch your MVP in 2-4 weeks. If you're a startup with an idea, I'll help you scope it down to what actually matters and ship something real - not a prototype that falls apart under pressure. 📱 Build for Android & iOS. Flutter for cross-platform apps with one codebase. Native Kotlin when you need deep Android integration. I can work from your Figma or create wireframes myself using tools like Stitch. 🔄 Bring your iOS app to Android. Already have an iOS app? I build the Android version without reinventing the wheel on design and logic. ⚙️ Add a backend. Java/Spring for custom logic that needs to scale. Firebase or Supabase for faster setup. Either way, it won't cause you headaches later. 🛠️ Fix what's broken - or audit before it breaks. App crashing? I find root causes, not just symptoms. Not sure what state your project is in? I can do a technical audit and give you an honest picture. ⚡ Revive abandoned projects. Half-finished app left by a previous developer? I'm used to picking up messy codebases and turning them into something shippable. 🏆 I've been building mobile apps since 2011 - one of the earliest Android developers, with experience across early-stage startups and enterprise teams. I think about how the decisions I make today will affect your project six months from now. If something looks like a risk, I'll flag it before it becomes your problem. Most of the past 5 years I worked full-time (including a 5-year backend role at a SCA startup). I'm now back on Upwork full-time with 100% Job Success Score. ✍️ If any of this sounds like what you need - just send me a message.

  • Mobile App Development
  • Android App Development
  • iOS Development
  • Android
  • iOS
  • Flutter
  • Kotlin
  • Firebase
  • Supabase
  • App Store
  • Google Play
  • Java
  • AI Mobile App Development
  • Tablet
  • Smartphone
  • Dart
  • AI Development
  • AI App Development
Surinder K.

Punjab, India

$30/hr
4.9
333 jobs

I develop high-performance hybrid mobile applications that deliver reliable results in real-world environments, including Firebase integrations, push notifications, custom native plugins, and complex SDK integrations. With 14+ years of experience and over 200 successfully delivered projects, I specialize in building, optimizing, and maintaining Android and iOS applications using Ionic, Cordova, Capacitor, Vue.js, and React Native. I help businesses launch scalable, cost-effective mobile solutions and solve critical issues that other developers struggle to fix. My expertise includes app stabilization, performance optimization, native SDK integration, App Store compliance, and troubleshooting complex mobile application challenges. ### What I Can Do for You ✔ Develop cross-platform mobile applications (Android & iOS) from scratch ✔ Convert existing websites or web applications into mobile apps ✔ Develop custom Cordova and Capacitor plugins ✔ Integrate native iOS and Android SDKs into Ionic applications ✔ Diagnose and resolve crashes, bugs, and performance bottlenecks ✔ Upgrade legacy applications (Cordova → Capacitor migration) ✔ Integrate APIs, Firebase services, and third-party platforms ✔ Resolve App Store and Google Play review and deployment issues ✔ Optimize application speed, stability, and user experience ### Technical Expertise • Ionic Framework (Angular & Vue) • Apache Cordova & Capacitor • Vue.js & React Native • JavaScript, TypeScript, HTML5, CSS3 • Native Android (Java/Kotlin) • Native iOS (Swift/Objective-C) • Firebase (Authentication, Firestore, Analytics, Push Notifications) • REST APIs & Third-Party Integrations • WebView Optimization & Plugin Debugging ### Specialized SDK & Plugin Development • Custom Cordova Plugin Development • Custom Capacitor Plugin Development • Native SDK Bridging for Ionic Applications • Microblink BlinkID Integration • Passport, Driver's License & ID Card Scanning • Selfie Verification & Face Matching • OCR & Document Data Extraction • Barcode & QR Code Scanning • Camera & Media Processing Integrations • Biometric Authentication • Payment Gateway SDK Integrations • Push Notification SDK Integrations One of my key specialties is developing custom native plugins for Ionic, Cordova, and Capacitor applications. I have successfully built and integrated complex SDKs, including Microblink BlinkID, enabling passport scanning, driver's license scanning, ID card recognition, selfie matching, and OCR-based data extraction on both Android and iOS. When a required SDK does not have an existing plugin, I can build the complete native bridge and integration from scratch. ### Why Clients Work With Me • Strong expertise in solving complex mobile application issues • Advanced debugging skills across native and hybrid environments • Extensive experience with plugin development and SDK integrations • Clear communication and reliable delivery • Proven track record with production-grade and long-term projects If your application is experiencing crashes, performance issues, SDK integration challenges, App Store rejections, or deployment problems, I can quickly identify the root cause and implement a reliable solution. From concept → development → deployment → scaling, I manage the complete mobile application lifecycle. Available to start immediately.

  • Apache Cordova
  • Hybrid App Development
  • Cross-Device Compatibility
  • Mobile App Development
  • Mobile App Bug Fix
  • API Integration
  • iOS Development
  • Android App
  • REST API
  • Firebase
  • SQL
  • React Native
  • Flutter
  • App Store Upload
  • Back-End Development
  • UX & UI
  • App Design
  • Apple Xcode
  • TestFlight
  • JavaScript
Jon Paul D.

Mabalacat City, Philippines

$20/hr
5.0
13 jobs

I help businesses build, optimize, and manage enterprise-grade contact center solutions using RingCentral and NICE CXone. With 8,000+ hours worked and $100K+ earned on Upwork, I specialize in designing reliable IVR systems, intelligent call flows, routing logic, and customer support automation for both small businesses and large enterprises. What I Can Help You With: ✔ RingCentral UCaaS & CCaaS setup and administration ✔ NICE CXone / InContact development and support ✔ IVR and call flow design ✔ Studio scripting and automation ✔ Omnichannel customer support solutions ✔ API integrations and workflow automation ✔ Technical troubleshooting and platform support ✔ Contact center optimization and reporting ✔ Post-implementation support, maintenance, and system optimization Why Clients Work With Me: ✔ Certified and experienced contact center engineer ✔ Strong communication and project ownership ✔ Fast problem-solving and reliable delivery ✔ Able to manage projects from planning to deployment ✔ Ongoing support available after implementation I focus on building scalable, user-friendly customer experience solutions that improve efficiency and customer satisfaction. Let’s discuss how I can help your business.

  • Business with 10-99 Employees
  • Business with 100-999 Employees
  • Desktop Support
  • NICE
  • VoIP Administration
  • VoIP Software
  • inContact
  • Call Center Management
  • Avaya
  • Implementation
  • Implementation Plan
  • RingCentral Glip
  • Dialpad
  • Back-End Development
  • Front-End Development
Edgardo C.

Davao, Philippines

$15/hr
4.7
35 jobs

✅ Overview I’m a VoIP Administrator with over 10 years of experience managing and optimizing phone systems for businesses of all sizes. I specialize in RingCentral, Dialpad, 8x8, Google Voice, GoTo, and other VoIP platforms — helping companies streamline communication, improve call quality, and ensure reliable call routing. From IVR setup and number porting to call queue management and CRM integration, I deliver solutions that keep phone systems running smoothly for both staff and customers. 💼 Services I Provide Phone System Setup & Administration - RingCentral, Dialpad, 8x8, Google Voice, GoTo, Nice inContact, Grandstream, RingCX IVR (Auto-Attendant) Design & Implementation - Custom menus, business/after-hours routing, multilingual prompts Call Queue & Routing Optimization - Overflow handling, priority routing, and fallback options Number Porting & Account Migration - Hassle-free transfer of business numbers across platforms User Onboarding & Training - Account creation, extension assignments, and permissions Troubleshooting & Support - Call quality issues, dropped calls, one-way audio, faxing problems Compliance Setup - SMS/TCR registration & HIPAA-compliant call handling CRM & Third-Party Integrations - Salesforce, Zapier, Podium, Beetexting 📊 Sample Projects 🔹 Healthcare Practice – RingCentral IVR & Call Queue Built a multi-level IVR for scheduling, billing, and nurse line. Added after-hours routing with voicemail to HIPAA-compliant inbox. Reduced missed calls by 40% within the first month. 🔹 Multi-Location Business – Dialpad Migration Migrated 50+ users fromDialpad to RingCentral. Configured shared call queues and AI-powered call transcription. Delivered staff training and SOP documentation. 🔹 SMS Compliance for Retail Client Completed 10DLC campaign registration for SMS. Updated client website to meet carrier requirements. Enabled mass texting via Beetexting integrated with RingCentral. 🛠️ Tools & Platforms VoIP Systems: RingCentral | Dialpad | 8x8 | Google Voice | GoTo | Nice inContact | RingCX Integrations: Salesforce | Zapier | Zendeskl Collaboration: Microsoft Teams | Google Workspace 📌 Why Clients Hire Me ✔ 10+ years of proven VoIP expertise ✔ Fast, reliable setup & troubleshooting ✔ Clear documentation & training for staff ✔ Track record of reducing missed calls and improving customer experience 📞 Let’s Work Together If you need a VoIP expert to set up, optimize, or troubleshoot your phone system, let’s connect. I’ll ensure your communications are seamless, reliable, and built to support your business growth.

  • VoIP
  • Network Monitoring
  • Network Administration
  • Computer Operating System
  • VoIP Administration
  • Electrical Engineering
  • Computer
  • Data Analytics
  • Computer Skills
  • Technical Support
  • VoIP Software
  • RingCentral Glip
  • Dialpad
  • GoToConnect
  • Call Center Management
Jose M.

Heredia, Costa Rica

$75/hr
5.0
216 jobs

I specialize in VoIP solutions with a focus on RingCentral (EX & CX) and Zoom (Phone & CC) project implementation and ongoing support. As a subject matter expert in the field, I work with businesses of all sizes to streamline communication systems, resolve complex technical challenges, and deliver seamless transitions to cloud-based telephony. Here's what you can expect when working with me: Deep Roots in VoIP: I'm not just certified; I'm passionate about what I do. With experience in RingCentral, Avaya, Zoom and Vonage, I'm well-versed in the intricacies of these platforms both in its UCaaS and CCaaS versions. Your Time Matters: I understand that every second counts in your business. That's why you can rely on me for prompt responses and effective solutions. Who I Serve: From small startups to large enterprises, I've had the privilege of assisting businesses of all sizes. My expertise spans various industries, including law firms, universities, fitness, and finance, to name a few. Here is a list of the most common tasks I perform within a VoIP platform: Call queues / Auto Attendant - IVR Call Forwarding / Call Routing Voicemail Setup / Custom Answering Rules Porting / User setup / Limited extensions SMS Automation** (10DLC) Multi Site Call logging expert / Audit trail Announcement / Audio greetings - Voice over Desk Phone Provisioning I'm here, ready to be your partner in enhancing your communication systems. Reach out to me here on Upwork and let's start a conversation, looking forward to understanding your unique needs and finding the perfect solution for you!

  • Call Center Management
  • Business with 100-999 Employees
  • Phone Support
  • VoIP PBX
  • System Administration
  • System Configuration
  • VoIP
  • Telecommunications Engineering
  • IVR Software
  • Telephone System
  • RingCentral Glip
  • Avaya
  • VoIP Software
  • VoIP Administration
  • Technical Support
  • PBX
Happiness A.

Akure, Nigeria

$15/hr
5.0
1 jobs

Many businesses today rely on SMS for communication, marketing, and customer engagement but run into serious issues when messages stop sending or campaigns get rejected. If you are dealing with A2P 10DLC rejection, Twilio SMS not sending, or GoHighLevel messaging issues, you’re not alone and more importantly, it can be fixed. I help businesses diagnose, fix, and fully resolve SMS compliance and deliverability problems so they can get back to communicating with their customers without restrictions. I work with platforms like Twilio and GoHighLevel, combining technical setup with compliance best practices to ensure successful A2P 10DLC approval and smooth messaging performance. 🚨 Problems I Help Fix: • A2P 10DLC campaign rejected without clear reason • SMS marked as “sent” but not delivered • Twilio numbers blocked or restricted • GoHighLevel SMS not triggering or failing silently • Campaign stuck in pending or under review • Low message delivery rates due to compliance issues • Opt-in flow not meeting carrier requirements • Message content getting filtered or flagged What I Actually Do (Not Just “Setup”): I go into your system and identify why things are failing. That includes: • Reviewing your A2P campaign (brand + use-case) • Checking opt-in/consent flow (this is where most people fail) • Analyzing message content for compliance risks • Fixing Twilio or GoHighLevel configuration issues • Restructuring submissions for approval success 🧩 Real Scenario I’ve Worked On: A client experienced a situation where their SMS messages were not being delivered after submitting their A2P campaign. After reviewing the setup, I identified that the campaign was rejected due to unclear use case description and non-compliant opt in structure. I restructured the campaign details, clarified the messaging purpose, and aligned the opt in process with compliance requirements. After resubmission, the campaign was approved and messaging functionality was restored successfully. ⚙️ Tools I Work With: • Twilio (SMS, A2P 10DLC) • GoHighLevel (CRM + messaging) • Make (Integromat) • n8n (workflow automation) 🎯 What You Get: ✔ Clear identification of the issue ✔ Fix for the root cause (not guesswork) ✔ Proper A2P registration or correction ✔ Restored SMS functionality ✔ Better chances of approval going forward If your SMS is not working, getting rejected, or behaving inconsistently, there’s always a reason and it can be fixed. 📩 Send me the issue you’re facing (error, rejection message, or setup), and I’ll help you figure it out.

  • Twilio
  • Twilio API
  • SMS
  • SMS Gateway
  • SMS Module Setup
  • Campaign Setup
  • VoIP
  • Outbound Call
  • Plivo
  • Automated Workflow
  • HighLevel
  • Marketing API Integration
  • Messaging System
  • CRM Automation
  • Lead Generation
  • VoIP Software
  • Click-to-Call
  • ClickFunnels
  • Automation
  • API Testing

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About PhoneGap

The PhoneGap framework (from Apache Cordova) also allows you to work with one code base, but with a different set of technologies. PhoneGap is an open source, cross-platform tool that builds apps with HTML, CSS, JavaScript, and Web APIs, along with frameworks like jQuery Mobile, Backbone.js, or Ionic. A PhoneGap application is essentially a collection of HTML pages wrapped in a native app shell, which are then pushed out to native platforms via native APIs.

With PhoneGap, developers create files in HTML, CSS and JavaScript—much like they would when creating a website. These files are stored in a local directory or in the cloud, then when they’re run on a device, they access device features through plugins. This makes PhoneGap apps lighter-weight and highly reusable, but they have less of a native feel, and the quality of the UI is going to depend more on the Web View engine of the operating system rendering it—e.g., iOS UIWebView class, or Android’s android.webkit.WebView.

PhoneGap Basics

  • Programming languages: HTML5, CSS, JavaScript
  • Platforms: iOS, Android, Windows Phone, Blackberry
  • Device API access: Limited. HTML5 geolocation, camera, and local database access, plus device API access (such as camera and geolocation) in the PhoneGap Developer App. Does have Web Standard support.
  • Free or paid: Open source. Has a free plan or a paid plan that offers increased data and plugin access.
  • User Interface: Web UI, and more general—not a native look and feel. Native features can be added, but you’ll need to have resources and knowledge of Java/Swift.
  • Augmented reality: Wikitude’s augmented reality Cordova plugin allows developers to build apps that can detect images or locations and project 2D images or 3D models.
  • PhoneGap Enterprise: Enterprise-level platform for building more robust apps, with integrated marketing support.
  • Companies using PhoneGap: Sony, Mozilla, Intel, IBM, SworkIt, TripCase, and Untappd.

More to consider about PhoneGap:

Access to a library of Cordova plugins. Plugins are bits of add-on code that allow you to do more with your app by providing a JavaScript interface to native components. Plugins allow an app to use native device capabilities. There are plugins contributed by the community for everything from file transfer and geolocation to cameras and push notifications.

The PhoneGap Developer app. This is a paired desktop and mobile app setup that allows developers to work locally on apps with built-in access to device APIs. PhoneGap Desktop 4.0 supports PhoneGap template and lets you build apps with features like push notifications without requiring the command line.

Extend your app with templates and third-party tools. HTML5 templates for PhoneGap provide you with shells for your UI, with features like buttons, menus, transitions, text boxes, and more. In addition, tools from providers like Paypal, Amazon and Magento give you access to things like payment, drag-and-drop design, authentication, and theme builders.

Support for Creative SDK plugins. This allows developers to add native components to apps without having to write a line of Objective-C, Java, or any other native code.

Very low barrier to entry. Most developers have a grasp of HTML, CSS and JavaScript, so it’s relatively easy to get started with PhoneGap as it uses these basic web technologies.

Build and compile in the cloud. PhoneGap Build is a cloud-based app building platform that compiles HTML, CSS and JavaScript to native code without needing to install SDKs for each platform.