Full-Stack Mobile App Developer

@OutsourceMan

Dear Valuable Client, At CnEl India, we specialize in taking mid-development mobile applications across the finish line with clean code, secure API integrations, and smooth Play Store deployments. Technical & Execution Methodology Pixel-Perfect UI & Team Coordination: Work directly in your Git/GitHub repository alongside your core team to translate finalized Figma designs into responsive Flutter frontend components. Auth, KYC & Location Modules: Implement OTP/Email authentication (JWT), secure document upload flows for KYC verification, and Google Maps/Places APIs for location-based features. Payments & Real-Time Engines: Integrate Razorpay SDKs with secure webhook handling, alongside WebSocket channels for real-time chat and Firebase Cloud Messaging for push notifications. DevOps, QA & Launch (2–3 Weeks): Set up Firebase Crashlytics, run end-to-end functional testing, sign production release bundles, and execute Google Play Store deployment. Ready to start immediately! Best regards, CnEl India Team

@ykarora26

With 5+ years of full-stack mobile app development, including UI/UX design integration and API implementation, I am eager to contribute to DOLO app's production readiness. Could you share more details about the current tech stack in use? Regards, Yogesh Kumar

@onkarkulkarni8

Hello, I checked your "Full-Stack Mobile App Developer" project description, it looks like the focus is on delivering a clean, responsive website that works well across all devices. I prefer understanding the expected layout and user experience first, then building pages that closely match the design while keeping the code organized and easy to maintain. Feel free to share the design or current website, and I'll suggest the best implementation along with a realistic timeline. Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.

@mrresearcher99

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert

@protovosolutions

Hello, We would be glad to support you with this project. Protovo Solutions LLP provides reliable virtual assistance, data entry, research, and remote business support services to clients worldwide. Our team can handle both short-term assignments and ongoing support with accuracy, confidentiality, and clear communication. Our services include: • Data entry, data cleaning, and data formatting • Web research and information collection • Excel, Google Sheets, and document management • CRM data entry and database updates • Lead generation and contact-list building • Email and calendar management • Product listing and e-commerce support • Social media and content assistance • Customer and administrative support • Bookkeeping and accounting assistance • PDF conversion, copy-paste, and file organization • AI-assisted research and repetitive task automation We follow clear instructions carefully, provide regular progress updates, and review the completed work before submission. Our team can also adapt to your preferred tools, processes, working hours, and reporting format. Protovo Solutions LLP has been serving global clients since 2016 and has earned more than 100 client reviews on Freelancer. Please connect with us through chat to discuss the work. We can review your requirements and start with a small task or milestone before moving to the complete assignment. Kind regards, Protovo Solutions LLP

@pinkeegupta

Hi I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native, and for web and backend on react js and node js, Python Django. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)

@technologiesit

When it comes to Full-Stack Mobile App Development, Iím the one-stop solution you need. My extensive 8+ years of experience has seen me successfully deliver over 200 projects similar to yours, which gives me the sure-footedness that comes with handling diverse client requirements and delivering quality, pixel-perfect solutions. Lately, I have been specializing in the use of Flutter for Android and iOS development with attention to detail in ensuring that designs are not only responsive but also production-ready. Additionally, my skills in JavaScript complement this line of work, and it has proven valuable in tasks such as integrations and connecting API's. Moreover, I am well-versed with important components flagged by your project description such as real-time communication using WebSockets, robust security and authentication processes along with JWT implementation and API protection. My prior experience with AWS/EC2/RDS/S3 would also provide an advantage for optimizing your app's performance and crash monitoring via Docker and Github Actions respectively. To conclude, my track record speaks volumes about my ability to deliver top-notch solutions within stipulated timelines and budgets. Guided by a business-first approach and a commitment to post-launch support,I'm keen on assisting your project reach its full potential. Reach out today so that we can discuss how exactly I can combine these skills with your unique project needs!

@Zaiyan

I can help convert your finalized UI/UX designs into a production-quality mobile app using Flutter. My first step will be to review the current development stage and ensure that the existing frontend and backend modules are properly connected. Based in Toronto, I work efficiently and remain available for any questions or updates throughout the project.

@Rajoriadares

Hello Client, Greeting of the day!!!! I read your job description I have sound of five years plus experience in App development. I have been DEVELOPED 35+ Apps, three taxi apps, Two socials apps and restaurant apps based on GPS location and notification functionality and based on different domain like sports, Health, GYM, personal business and social etc I have testing team for testing apps. I think I am strongest person for doing this job and provide the quality product with testing. I am always available for your support. Thanks Sr. Mobile Developer

@shayankhan333

Razorpay webhooks are where most DOLO-style apps break in production, the callback often fires before the client confirms, so wallet balances drift unless you reconcile server-side. I'll finish the Flutter modules against your existing Node backend, wire OTP, KYC, Maps and the WebSocket chat, then harden the Play Store release build with signing and crash reporting. 1) Is the backend already on EC2 with RDS, or still local? 2) Which KYC provider are you using, Digio, Hyperverge, or something else? Cheers Shayan

@nsinfosoftwebapp

As an experienced Full Stack Web Developer with over 8 years in the industry, I am confident that I can elevate your DOLO app to new heights. My technical proficiency in areas such as API Integration, JavaScript, Node.js, and PHP align perfectly with the intricate requirements of the project. Moreover, my familiarity with REST APIs development and Third-Party API integration will allow for a seamless connection of existing front-end and back-end modules, and the smooth implementation of OTP authentication, email verification, user authentication, etc. In addition to my technical skills, I bring a practical understanding of what it takes to develop and scale a successful digital product. I have built various types of applications including E-commerce platforms, Inventory & ERP systems, Booking & Reservation systems, CRM solutions among others. My skill set also includes knowledge of cloud-based services like AWS / EC2 / RDS / S3 which can be highly valuable in your project's success.

@abhishek060

Hi, DOLO doesn’t need to be rebuilt—the priority is taking the existing work, connecting the incomplete pieces and making the entire app production-stable while working alongside your current developers. The first step would be to review the existing Flutter/API codebase, identify integration gaps, and then systematically stabilize the critical flows: OTP/KYC, Razorpay wallet/webhooks, Maps, WebSockets, push notifications and analytics. API errors, authentication/security issues, chat reconnection, payment callbacks and UI inconsistencies would be tested end-to-end before the production build. Play Store signing, release configuration and deployment would be handled as part of the final handover. Relevant Flutter, Razorpay, Node.js and real-time projects can be shared during discussion. If you share the current project status, the first milestone can be mapped around what is already completed and what remains. Best regards, Abhishek

@ssquare489

For DOLO, I’d focus first on stabilizing the existing frontend/backend integration around OTP, KYC, Razorpay, Maps, WebSockets, and push notifications before adding further polish, so the team reaches a reliable production baseline quickly. I’m comfortable joining an existing Flutter/Node.js codebase and working alongside separate frontend and backend developers. My two priorities would be integrations and maintainability: consistent API contracts, centralized auth/token handling, resilient WebSocket reconnect logic, verified Razorpay callbacks/webhooks, secure document uploads, and predictable error states. That reduces release blockers and post-launch support issues. I can also handle Firebase notifications, analytics/crash reporting, AWS services, Docker, CI/CD, release signing, Play Store configuration, and end-to-end production testing. I’d review current modules first, identify incomplete or fragile flows, then work feature-by-feature through integration, QA, performance, security, and release readiness using Git-based PR workflows. A relevant project is FileChannels, where I worked on a mobile/web collaboration platform with Agora calling, PubNub messaging, WebRTC, Stripe, CRM integrations, centralized file storage, and real-time communication flows.

@monicasynthesis

Hello, I’d be happy to help take your DOLO app from its current development stage to a stable, production-ready release. I have experience in Flutter, Node.js, API integrations, payments, authentication, real-time features, and mobile app deployment. I will provide: • Pixel-perfect implementation of finalized UI/UX designs • Frontend/backend API integration and production-ready flows • OTP, email verification, KYC, document uploads, and JWT authentication • Razorpay payments/wallet with callbacks and webhooks • Google Maps/Places and location-based features • Real-time chat/WebSocket stabilization • Push notifications, analytics, crash monitoring, and KPIs • Security, performance optimization, testing, and bug fixing • Git/GitHub workflow and coordination with your existing team • Google Play release preparation, deployment, and post-launch fixes I’m also comfortable working with Firebase, AWS, Docker, CI/CD, REST APIs, and production monitoring. Warm Regards, Monica Bhatia

@KarthikTechCon

Hi, I'm Karthik, a Full-Stack Mobile App Developer with over 15 years of experience in building robust applications. I am excited about the opportunity to contribute to the DOLO app and help transform it into a production-ready platform. Having extensive experience in converting UI/UX designs to pixel-perfect, responsive applications, I can ensure a seamless integration of your existing frontend and backend modules. I am proficient in API integrations, implementing OTP authentication, KYC verification, and payment systems like Razorpay. Additionally, I have a solid understanding of Google Maps API, real-time communication using WebSockets, and push notifications. My technical expertise includes AWS, Docker, Firebase, Flutter, and Node.js, ensuring optimal security, performance, and monitoring. I am well-versed in Git/GitHub for version control and follow best practices throughout the development lifecycle. I am committed to delivering high-quality work and supporting the application’s launch, including deployment on the Google Play Store. Let's discuss how I can bring my skills to your project. Looking forward to the opportunity! Best, Karthik

@sumipundir01

Hi, I can help take your DOLO app to production quickly and cleanly. I have strong experience in Flutter/React Native, Node.js, APIs, payments (Razorpay), KYC flows, real-time chat, and Firebase integrations. I’ll handle UI implementation, complete frontend–backend integration, fix bugs, optimize performance, and prepare a Play Store–ready build. Ready to collaborate with your team and deliver fast. Let’s connect. Thanks

@NEHABHAT92

As someone who's been immersed in the world of mobile app development for over 9 years, I've gained deep expertise and refined my skills in Android, Flutter, JavaScript, Mobile App Development, Node.js, and PHP. This varied skill set enables me to effectively tackle all aspects of your project —from pixel-perfect UI/UX design conversions to integrating third-party services and APIs. What separates me from other freelancers is my commitment to product quality and a client-centric approach. Nothing excites me more than taking an idea and turning it into reality—as do you—and my portfolio resonates with that passion. Additionally, my knowledge of AWS/EC2/RDS/S3, Docker, Github Actions/CI-CD, Firebase, and everything else you’ve mentioned will prove invaluable for your project. I am confident that not only can I contribute significantly to making your DOLO app fully production-ready but I can also add substantial value by implementing proven strategies for security, authentication, API protection and production readiness. Furthermore

@bridgestonetech1

Hi, I reviewed the project and understand you need a Full-Stack Mobile Developer to take the existing DOLO app from its current stage to a stable, production-ready release while working closely with your existing team. We can handle Flutter development, frontend/backend integration, OTP & KYC, Razorpay payments/wallet, Google Maps, WebSockets/chat, push notifications, analytics, crash monitoring, security, testing, and performance optimization. We’ll work with your existing Git/GitHub workflow, coordinate with your developers, fix UI and functional issues, and handle the Google Play release and production deployment. Let’s review the existing build and define the remaining milestones to get DOLO production-ready.

@ammarahmed20

I'm Ammar Ahmed Malik, a Full-Stack Mobile App Developer who’s dived deep into tech and can help bring your DOLO app to production readiness. With a strong command in API integration, Node.js, JavaScript, and PHP alongside my experience with Frontend and Backend development, I am confident in my ability to convert your finalized UI/UX designs into high-performing and responsive mobile application. My skills don’t simply stop at building the app - I'll ensure it’s ready for market launch, working seamlessly with third-party services such as Google Maps/Places, Razorpay payments/wallet as well as integrating necessary security measures like OTP authentication and KYC verification. I've also accumulated knowledge of key analytics tools to help identify key performance metrics. I believe that design is nothing without stability and security, which is why I'm an advocate for proper functional and production testing. Having worked on real-time chat functionality and push notification integrations, I understand how crucial it is to deliver an efficient and bug-free application. And of course, let's not forget the importance of documentation. My work isn't just about creating things from scratch but also to make them easy for others to understand so you have smooth transitioning post-launch. So if you’re looking for a developer who can take the reins of your project freeing up your team’s time while ensuring sophisticated output in line with your requirements, I'm your guy!