Senior Flutter Developer for Travel App

@leadconcept

Hi, We are a senior mobile engineering team with deep experience building production grade B2C travel apps, and we can take full ownership of your Flutter-based OTA, implementing clean architecture, advanced state management (Bloc or Riverpod), complex API integrations, real-time booking flows, payment processing, and push notifications while optimizing performance for large search results. We will deliver secure multi-step booking flows for flights, hotels, and eSIM purchases, real-time price validation, WhatsApp-triggered confirmation workflows, authentication modules, and production-ready deployment to both App Store and Play Store with milestone-based CI/CD practices and scalable architecture. Do you prefer Bloc or Riverpod for state management, and should the eSIM module integrate directly with carrier APIs or via a third-party aggregator? We have creative UI/UX Designers & experienced Developers team working on different tech stacks, so we will provide you quality services with 5 months FREE support and longterm relationship guarantee FYI. The current bid amount is a placeholder to submit the proposal. Look forward to hearing from you. Regards Yasir LEADconcept PS: Let me know, if you want to see our team past work to determine our skills/expertise or past customer's references.

@jastp

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have now earned 'Expertise' level in AI, ChatGpt and a couple of other AI platforms for App development and other Chatbot work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas

@irsolutions

With over 7 years of experience in native and cross-platform Android/iOS development using Flutter, I understand the importance of clean architecture, advanced state management, and complex API integrations for your B2C OTA mobile application. Your project requires expertise in handling real-time booking flows, payment integration, and performance optimization, and I am confident in my ability to deliver exceptional results in these areas. I have successfully built and deployed multiple production-level apps in the travel industry, implementing secure authentication, multi-step booking flows, and real-time price validation. My preferred state management approach is Bloc, as it offers robust functionality and organization for complex applications like yours. You can view examples of my work on GitHub, demonstrating my proficiency in handling transactional systems and delivering high-quality, scalable solutions. I am eager to discuss your project further and share my technical approach to ensure its success. Feel free to reach out to me to learn more about how I can contribute to your team and help bring your vision to life.

@technosystem

With over five years of professional experience in mobile app development, I'm well-acquainted with the entire app development lifecycle, including deploying apps to App Store and Play Store. My expertise lies in creating complex applications with a secure authentication system and real-time transactional flows for efficient booking experiences. Coming from an architecture discipline, I align my skills and practices with the best-suited approach for every project. With reference to your question on state management, I have used distinct practices including Bloc or Riverpod depending on the project complexity, scalability, and requirements. Apart from building multiple Android and iOS apps,I've also developed transactional systems catering to specific business needs. This includes integrating with complex API systems, payment gateways and ensuring price validation in real-time. Out of my extensive portfolio, you can refer to my work on several marketplaces and online platforms with similar functionalities to your OTA application which will demonstrate my aptitude for this job. Furthermore, my ability for performance optimization is critical when dealing with large result lists such as hotel inventory and flight search results. I also understand the need for prompt communicating platform and hence developed WhatsApp-triggered confirmation workflows in past projects.

@OutsourceMan

⭐⭐⭐⭐⭐ Hello Valuable Client, We at CnELIndia, led by Raman Ladhani, specialize in building scalable, production-ready Flutter applications and are confident in delivering your B2C OTA mobile app. Our team has successfully implemented complex transactional systems for flight and hotel bookings with real-time price validation, multi-step flows, and payment integrations. We follow Clean Architecture and leverage Bloc for advanced state management, ensuring maintainable, high-performance apps. We handle API integrations, push notifications, and optimize large result lists for smooth user experiences. CnELIndia can provide GitHub code samples of similar projects and guide end-to-end deployment on App Store and Play Store. We propose a milestone-based plan over 6 months with immediate start, focusing on modular, secure, and scalable architecture tailored for regional expansion. We ensure timely delivery with rigorous quality standards and production-level reliability.

@eclairios

Hello, I am keen to bring your vision for a scalable B2C OTA mobile application to life. My expertise in Flutter, Clean Architecture, advanced state management (Bloc), and complex transactional systems, including real-time booking and payment integration, perfectly aligns with your Flights, Hotels, and eSIM platform requirements. I’m Waqas from Eclairios, a professional software engineer with over 7 years of experience in app and web development. I have successfully completed 128 projects, earning a 5.0 rating from satisfied clients. I specialize in mobile apps (Android, iOS, Flutter), website development, custom APIs, and backend solutions. My goal is to deliver high-quality, scalable solutions that meet your business needs. Why hire me? ★ 100+ Projects Completed with 5-star rating. ★ 3 months of free post-launch support ★ Expertise in advanced technologies and systems Let’s connect and discuss how I can help you with your project. Best regards, Waqas

@corpmember29

Hello, I am a Firebase and Senior Flutter Dart Developer with 10+ years of experience building scalable, production-grade mobile applications, including transactional and booking-based systems. I have worked on complex apps involving real-time APIs, secure payment gateways, multi-step checkout flows, push notifications, and large dataset optimization. For OTA platforms (Flights, Hotels, eSIM), I follow Clean Architecture with strict separation of layers (presentation, domain, data) to ensure long-term scalability. My preferred state management is Bloc for large transactional systems due to its predictable state flow, strong testability, and maintainability in complex booking workflows. I also have experience with Riverpod where lightweight modularity is required. I have handled high-volume transactional systems with real-time price validation, concurrency control, and fail-safe booking confirmations. I am experienced in integrating flight/hotel APIs, payment providers, WhatsApp-triggered workflows, and secure authentication (OAuth, JWT, MFA). I have successfully published multiple production apps on both App Store and Play Store, including CI/CD pipeline setup, store compliance handling, and performance optimization. I would approach your project by starting with wireframes and getting the UI/UX design completed, before starting the actual development phase. We'll provide You high Quality Design and development for you with unlimited changes in design. Thanks

@Julian29

Hello, (( B2C Online Travel Agency (OTA) Mobile Application ))I have similar kind of expertise and work experience. i am full-time Firebase and Flutter Dart Mobile App developer and UI/UX designer. I have experience and expertise in Firebase and Flutter Dart mobile applications (Android & iPhone/ipad ) and App admin with development web services where admin can manage the app from the backend, including large-scale transactional and booking platforms, I confidently understand your goal of building a scalable, high-performance OTA app with seamless user experience and real-time booking reliability. -->> Flight, Hotel & eSIM booking modules -->> Clean Architecture with Bloc/Riverpod state management -->> Real-time price validation & secure payment integration -->> Push notifications & WhatsApp workflow triggers -->> Optimized large result lists & production deployment My preferred approach is Clean Architecture with Bloc for predictable state flow in complex transactional systems, ensuring maintainability, testability, and long-term scalability. ++++++Service Guarantee++++++ * design of app android ios admin panel * optimised code and well commented to use for future * All latest code to support all version of android and ios phone device. * publish app in google play store and in itune store * setupp server and host app and databse * Free support and maintaince Awaiting for your positive response. Thanks

@kamran2012

Hello, I will develop the Flutter app covering flight search and booking, hotel search and booking, eSIM purchase, secure authentication, payment integration, and push notifications, built on Clean Architecture with Bloc for state management. For the booking flows, I will model each stage as a sealed class inside the Bloc. Every state from search to payment to confirmation becomes explicit at compile time, so the UI cannot hit an undefined state and edge cases surface during development, not production. Questions: 1) Which flight and hotel APIs will the app connect to (Amadeus, Sabre, or a specific aggregator)? 2) Will the WhatsApp confirmation trigger through the Business API or a third-party service like Twilio? 3) Do you have the UI/UX designs ready, or is design work running in parallel? Looking forward to your response. Best regards, Kamran

@diektech

Hi — Elias here (Miami). I understand you’re building a B2C OTA Flutter app with Flights + Hotels + eSIM, and the hard parts are the transactional booking flows: large search result lists, multi-step checkout, real-time price revalidation, payments, push, and WhatsApp-triggered confirmations. You want a senior Flutter dev who can enforce Clean Architecture, keep state predictable (Bloc/Riverpod), and ship production builds reliably over a 6-month milestone contract starting now. my technical approach (high level) * Clean Architecture: feature-first modules (flights, hotels, esim, auth, booking, payments, notifications) with strict layers: presentation → domain → data. Contracts in domain, implementations in data, DI via get_it or riverpod providers. * State management: Riverpod (my preference) for composable async state + testability and to avoid bloated blocs; Bloc is fine too if your team is already standardized on it. * Booking reliability: idempotent booking intents + server-side order state, retry-safe calls, and explicit “price check” steps so the UI never assumes a fare/room is locked until confirmed. * Performance: paging + caching, isolate-heavy parsing for large result payloads, debounced filters, and careful image/lottie usage. * Payments + push: platform-safe implementations, deep links for confirmation flows, and deterministic logging/tracing for support. If you share the provider list + current repo structure,

@DeveloperStation

Hi, We’ve developed multiple large-scale travel apps, including a fully functional B2C product with hotel and flight booking, eSIM purchasing, and more. We also integrated advanced features like WhatsApp notifications and multi-step flows, ensuring a seamless user experience. As a senior developer, I’ve worked extensively with Flutter since its early days, leading teams and delivering production-ready apps. I’m well-versed in both native Android/iOS development and backend technologies like Laravel and Node.js, enabling me to contribute across the entire stack. Let’s schedule a 10-minute call to discuss your project in detail and see if I’m the right fit. I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best regards, Adil

@planDapps

BUILD A SCALABLE, HIGH PERFORMANCE B2C OTA MOBILE APP Hi, I specialize in Flutter mobile app development with 12+ years of experience delivering complex transactional apps across Flights, Hotels, and e commerce modules. I can implement Bloc or Riverpod state management for clean architecture, handle real time booking flows, API integrations, and secure payments, and optimize performance for large datasets. I’ve built and published production ready apps, ensuring smooth App Store and Play Store deployment. My approach emphasizes scalable architecture, maintainable code, and reliable transactional handling. Could we review your API structure and booking flow to confirm the optimal state management strategy for your platform? Let’s discuss next steps to bring your OTA app live. Regards, Haider

@MashoodurRehman1

I am a Senior Flutter Developer with extensive experience in building scalable, production-ready mobile applications for the travel industry. My skills align well with your project requirements, having successfully deployed apps featuring clean architecture patterns and advanced state management with Bloc. I specialize in complex API integration, transactional booking flows, and performance optimizations, ensuring minimal latency and robust user experiences. In previous projects, I've integrated secure payment systems and implemented real-time notifications for transaction confirmations. Proficient with the latest Flutter libraries and tools, I have a strong track record of deploying high-quality apps on both the App Store and Play Store. This includes handling multi-step booking processes and authentication mechanisms, similar to those in your app description. I've managed CI/CD pipelines to streamline app updates and maintenance, ensuring app stability and reliability. I am interested in diving deeper into your app's specific architectural needs to tailor my approach effectively. Could you share more about your preferred state management between Bloc and Riverpod? Best regards.

@kanika6665

Hi there! With extensive experience in developing complex and scalable mobile applications, I am excited to take on the challenge of your B2C OTA travel app project. My focus on clean architecture, advanced state management, and performance optimization aligns perfectly with your requirements. I have successfully built apps with real-time booking flows, payment integration, and push notifications, ensuring seamless user experiences. Additionally, my expertise in handling transactional systems and deploying production-level apps on App Store and Play Store makes me a perfect fit for this project. I follow a meticulous approach to state management, utilizing Bloc for its robust features and ease of maintenance. You can review my GitHub profile for code samples of my work, showcasing my commitment to quality and efficiency. I am prepared to tackle the challenging development tasks outlined in your project, delivering results within the 6-month timeline. Let's collaborate to bring your vision to life and create a high-performance travel app that stands out in the market. Looking forward to discussing my technical approach with you. Shall we proceed? Best regards,

@hireageek

Hello, I am excited about the opportunity to work on your B2C OTA mobile application. With extensive experience in Flutter development and a successful track record of delivering complex applications, I am confident in my ability to meet your requirements. My expertise includes implementing clean architecture patterns and advanced state management using Bloc, ensuring that your app is robust, maintainable, and scalable. Having been involved in similar projects, I have hands-on experience with complex API integrations and real-time booking flows. I understand the importance of performance optimizations, especially for large result lists, and I am adept at implementing secure authentication and payment integration. Leveraging my skills in deploying production-level apps, I can ensure seamless launches on both the App Store and Play Store. I would love to discuss the next steps and share examples of my previous work. Also, could you clarify which specific features you are prioritizing for the initial launch? What specific features are you prioritizing for the initial launch?

@mobiappsoftware

Hello, I will design and develop your TRAVEL BOOKING MOBILE APPLICATION for Android and IOS both platforms with Web admin panel. I am Tulsiram. I have 10 years of experience working as Native and Crossplatform mobile application developer. I am understood your requirements. I am glad if we are working together. If you interested then let's connect. I will provide you Daily updates ,source code after development completed, 1 Year maintenance Support in following Steps: I will available daily 10-12 hours in Working days for you. I will provide you regular updates according to which modules we will decided. After approval each module by you then i will provide your complete source code of your project and will shift on your Domain. Thanks

@usamae

Flutter developer here with production app experience across both App Store and Play Store. For state management on a booking app like this, Bloc is my preference - the explicit event/state separation makes complex booking flows (multi-step search > select > validate > pay) much easier to debug and test than Riverpod's more reactive approach. I've built transactional mobile apps with real-time price validation and payment integration before. The multi-step booking flow with real-time validation is something you have to architect carefully to avoid state sync issues between screens - Clean Architecture with separate data/domain/presentation layers handles this well. For the WhatsApp confirmation workflow, I've integrated WhatsApp Business API into production systems, so that module is something I have direct experience with. I can share relevant code samples and published app links over chat. What does your current codebase look like - are you starting from scratch or is there an existing Flutter project to build on? - Usama

@Mobilehead

Hello, I am a senior Flutter developer with 8+ years building production apps including complex booking, payments and transactional systems using both BLoC and Riverpod. I will deliver a Clean Architecture implementation with domain/data/presentation layers, use Riverpod or BLoC for deterministic flows, integrate REST/GraphQL and websockets for real-time price verification, implement native payment SDKs and secure auth, add push notifications and WhatsApp-triggered confirmation hooks, and optimize large result lists with pagination, caching and isolates for high performance. Why We Work Together: - Deep OTA & transactional experience - Strong architecture, testing and CI/CD discipline - Fast milestone-driven delivery and production deployment experience Best Regards, Sherman

@mahig47

Hello! As per your project post, you’re looking to build a B2C OTA mobile application using Flutter that enables users to search and book flights, hotels, and purchase eSIM services with secure authentication, real time booking validation, and seamless confirmation workflows. The goal is to deliver a high performance, scalable travel app with smooth booking flows, reliable API integrations, and production ready deployment on both iOS and Android. My focus will be on building your travel application featuring: clean architecture based Flutter development with Bloc or Riverpod state management, complex API integrations for flight, hotel, and eSIM bookings, secure authentication and multi step booking workflows with real time price validation, payment gateway integration and push notifications, and performance optimization for fast search results and smooth user experience. I specialize in developing large scale Flutter applications with focus on clean architecture, real time integrations, and production ready deployment. My focus will be on delivering a robust, maintainable, and high quality travel platform tailored to your OTA business requirements. I am confident I can deliver a fully functional, scalable, and production ready travel mobile application tailored to your OTA platform. Best regards, Nikita Gupta.