Native Kotlin Fintech App Rebuild

@Microlent

Hello! Your requirement is clear: rebuild your B2B fintech portal as a fully native Android application in Kotlin, leveraging your existing PHP/MySQL REST APIs while focusing on clean architecture, security, and reliable biometric integrations. Understanding The app must include: • Kotlin-based Android app using MVVM / Clean Architecture • Retrofit networking for secure API communication • OTP + MPIN authentication with device binding and token sessions • SSL pinning for secure fintech transactions • Dashboard showing account summary, recent transactions, and service shortcuts Biometric Integration I will implement the RD Service intent flow for: • Mantra • Morpho • Startek Including full capture handling, response parsing, and transaction validation for AEPS services. Core Modules API integration for: AEPS, DMT, BBPS, Recharge, Wallet, Ledger, Flight, PAN, and Loans. Deliverables • Complete Android Studio Kotlin project with modular structure • Signed testing APK • Integration report verifying API calls, SSL pinning, and biometric device capture Best regards, Jasmin

@mrresearcher99

Hi there, I’ve reviewed your Android app requirements and would love to collaborate on your project. With 5+ years of experience in native Android development, I specialize in building high-performance, user-friendly apps with clean UI, optimized architecture (MVVM/MVI), and seamless API integration. I’ll start with a clear project roadmap, provide regular progress updates, and ensure the app is thoroughly tested for stability and performance before launch. Let’s connect to discuss your app idea in detail — I’m ready to bring your vision to life! Best, Bhargav Android Developer | Kotlin & Java Expert

@pinkeegupta

Hi 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 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 , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)

@Riasatali78

I can build your native Kotlin Android app for the Digifinpay B2B portal using MVVM, Retrofit, secure OTP/MPIN login, SSL pinning, and full API integration with AEPS, DMT, BBPS, Recharge, Wallet, and other modules.

@amaank66

I can rebuild your B2B fintech portal into a fully native Android application using Kotlin with a clean, scalable architecture suitable for fintech-grade security and performance. The app will follow MVVM/Clean Architecture, using Retrofit for API communication, proper repository layers, and secure token-based session handling. I will implement OTP + MPIN authentication with device binding, along with SSL pinning to ensure secure communication with your existing PHP/MySQL backend APIs. For the AEPS biometric requirement, I will integrate the RD Service intent flow for Mantra, Morpho, and Startek devices, ensuring proper capture, response parsing, and transaction handling. Each device integration will be thoroughly tested and documented. The dashboard will dynamically load data via your REST APIs, displaying user account summary, recent transactions, and quick access to services. Core modules including AEPS, DMT, BBPS, Recharge, Wallet, Ledger, Flight, PAN, and Loans will be connected through the provided endpoints with smooth navigation and a lightweight UX similar to leading fintech apps. Deliverables will include the complete Android Studio project, signed APK for testing, and an integration report confirming API connections, SSL pinning, and biometric device testing. I can begin immediately and structure milestones to ensure fast progress toward production. Best regards, Amaan Khan L. (CUBEMOONS PVT.)

@nutankumarftp

Having successfully completed over 2000 projects in my extensive 10-year career, I'm confident that I have the skills and experience to rebuild your B2B fintech portal into a native Android app. My technical proficiency in Kotlin combined with my understanding of clean architecture patterns (MVVM) and API integration (Retrofit for ... I'm well-versed in handling large-scale projects as evident from my works across various industries including E-commerce and Finance. With this vast experience, I can guarantee a fully functional and scalable product. Moreover, my prior understanding of integrating biometric feature for apps will be valuable while handling the AEPS transactions ... Finally, as an Agile practitioner, quality code and timely delivery are paramount to me. I'll make sure the final project adheres to industry standards with proper package separation for better maintainability. You can also count on me to provide a comprehensive post-integration report; confirming SSL pinning verification as well as ...

@Ak230598

Hello, I CAN DO THIS. I have 6.5+ years of experience in this field. Let's connect and discuss more about your requirements. Thank you.

@nicolasalexandro

Hey — saw your post about rebuilding your B2B fintech portal as a native Kotlin app. With so many modules (AEPS, DMT, BBPS, etc.), the real pain point will be keeping the app lightweight and smooth while handling secure logins, SSL pinning, and biometric flows reliably. Quick question before I suggest an approach: Do you already have any existing Android code or design system to reuse, or is this a clean rebuild from scratch in Kotlin with fresh UI? I’ve worked on Kotlin MVVM apps with Retrofit, token-based auth, and RD/biometric integrations where SSL pinning and device-binding were mandatory for compliance, so I’m comfortable with the security and performance side. If you can share your API docs/Postman collection and any UI references (e.g., what you like from SpiceMoney), I’ll review them and outline a clear milestone-based timeline for you.

@hr157

Hello, I’m an Android developer with 10+ years of experience building fintech and transaction-based apps, including systems that integrate with biometric RD services and secure payment APIs. I will develop the application using Kotlin with MVVM/Clean Architecture, ensuring the codebase remains modular, scalable, and easy to maintain. API communication will be handled using Retrofit with secure token-based sessions and SSL pinning, while authentication will support OTP + MPIN login with device binding for strong security. The dashboard will dynamically load data from your existing APIs and present: • User account summary • Recent transaction history • Quick service shortcuts All core modules—AEPS, DMT, BBPS, Recharge, Wallet, Ledger, Flight, PAN, and Loans—will be connected to your backend endpoints with responsive UI flows similar to lightweight fintech apps like SpiceMoney. Deliverables • Complete Android Studio Kotlin project with clean architecture • Signed APK for testing • Integration report covering API usage, SSL pinning verification, and biometric capture results for the required RD devices I’m ready to review your Postman collection and API documentation and begin development immediately.

@Syedh1998

I can rebuild your B2B fintech portal into a fully native Android app in Kotlin, preserving your backend functionality while delivering a lightweight, secure, and intuitive UX. I’ll implement MVVM/Clean Architecture patterns with Retrofit for API calls, OTP + MPIN login, SSL pinning, and token-based sessions. Biometric AEPS flows will integrate with Mantra, Morpho, and Startek devices, with thorough testing for capture and response handling. The dashboard will dynamically display account summaries, recent transactions, and quick service shortcuts. Core modules—AEPS, DMT, BBPS, Recharge, Wallet, Ledger, Flight, PAN, and Loans—will be wired to your existing REST APIs for fast, reliable interaction. Deliverables: complete Android Studio project with clean, modular code, signed APK for testing, and integration report verifying all endpoints, SSL pinning, and biometric functionality. Timeline and milestone plan will ensure swift deployment into production. Syed

@MuhammadAsad108

✔ I deliver 100% work — 99.9% is not for me. ✔ Workflow Diagram Requirement Analysis & Architecture ⟶⟶ UI/UX Design (Kotlin MVVM) ⟶⟶ Retrofit API Integration ⟶⟶ Biometric SDK Integration ⟶⟶ Dashboard & Core Module Wiring ⟶⟶ Testing & SSL Pinning Verification ⟶⟶ APK Build & Final Delivery Key Highlights ✔ Fully native Android app — built in Kotlin with MVVM / Clean Architecture, scalable and maintainable. ✔ Secure authentication — OTP + MPIN login, device binding, token-based sessions, and SSL pinning for all API calls. ✔ Biometric AEPS support — integration and successful capture for Mantra, Morpho, and Startek devices using RD Service intent flow. ✔ Dynamic dashboard — displays account summary, recent transactions, and quick access to all core services (AEPS, DMT, BBPS, Recharge, Wallet, Ledger, Flight, PAN, Loans). ✔ API integration with existing backend — all endpoints connected via Retrofit, JSON parsed efficiently, error handling implemented. ✔ Lightweight and responsive UX — smooth navigation with layouts optimized for various screen sizes, comparable to SpiceMoney. ✔ Readable & maintainable codebase — clear package separation, commenting, and scalability for future features. ✔ Deliverables ready for testing & production — signed APK, full Android Studio project, integration report verifying API calls, SSL pinning, and biometric functionality. Best Regards, Asad Android Developer | Kotlin & MVVM Specialist | Secure Fintech App Development

@ahmetTC

Hope you are doing well! Extensive experience has been gained building native Android applications in Kotlin, leveraging MVVM and Clean Architecture patterns for scalable, maintainable codebases. Previous projects involved binding Android frontends to PHP/MySQL backends with well-documented REST APIs, including complex modules like AEPS, DMT, BBPS, wallets, and transaction dashboards. Challenges such as handling multiple biometric SDKs (Mantra, Morpho, Startek) were resolved by implementing device-specific intent flows, proper capture and response handling, and testing on each hardware model to ensure reliability. Experience also includes implementing secure login flows with OTP + MPIN, device binding, SSL pinning, and token-based session management to meet fintech security requirements. UI/UX work focused on responsive dashboards, real-time data fetching, smooth navigation, and lightweight layouts optimized for performance on mid-range devices. Deliverables included fully working Android Studio projects, signed APKs, clear package structures, and integration verification reports for all endpoints. I know what do I build for you, can complete it to your full satisfaction within your timeline. I am ready for you and waiting here. Thank you.

@tamannarajput18

With a substantial background in full-stack development and mobile app building, I am certain that I can deliver the high-caliber results you expect for your fintech project. For over 6 years, I have consistently demonstrated my ability to develop technically sound, user-friendly solutions for various business domains. My proficiency in Kotlin paired with my experience with MVVM and Clean Architecture patterns make me well-equipped for this native Android app rebuild. You can rest assured that your core requirements - such as account summary, transaction history, Quick shortcuts to services - will be implemented seamlessly with responsiveness and smooth navigation throughout. Additionally, I am highly adept at integrating REST APIs, which means I can effectively wire up your crucial modules like AEPS, DMT, BBPS, Recharge, Wallet, Ledger with existing endpoints. Furthermore, the biometric feature is integral to your needs. I have extensive experience handling device-specific flows; thus entailing successful capture and response handling for Mantra, Morpho, and Startek models during testing according to your requisites is well within my wheelhouse.

@Hemantt841

I see you need your live B2B fintech portal rebuilt as a native Android app in Kotlin, focusing on UI, API binding, and biometric SDK integration. You want a clean, scalable app implementing MVVM or similar architecture with secure login and biometric flows for specific devices. Your project requires Retrofit for network calls, OTP + MPIN login with SSL pinning, and dynamic dashboard data showing user summaries and transactions. Integrating core modules like AEPS, DMT, and BBPS with smooth navigation and a lightweight UX similar to SpiceMoney is key. You also expect a signed APK and detailed integration reports. I recently rebuilt a finance app using Kotlin and MVVM, integrating biometric SDKs for fingerprint and face recognition while handling secure API calls with Retrofit and SSL pinning. I delivered a clean Android Studio project with modular code and tested biometric flows on multiple devices, which aligns directly with your requirements. I can complete the full rebuild, including biometric testing and documentation, within four weeks. We can break this into milestones to keep progress clear and ensure a smooth handover for production. Let’s discuss the next steps.

@bilal0356

Hello, We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on PHP, Java, Mobile App Development, Android, Kotlin, Android App Development, Android SDK, API Integration, Android UI Design, REST API Please come over chat and discuss your requirement in a detailed way. Thank You

@SamreenCoders

Hello, I can rebuild your Digifinpay B2B portal into a fully native Android application in Kotlin, ensuring smooth API integration, secure authentication, and proper RD Service biometric handling for AEPS transactions. Approach: • Develop the app using Kotlin with MVVM / Clean Architecture for scalable and maintainable code • Use Retrofit for API integration with your existing PHP/MySQL backend • Implement OTP + MPIN login with device binding, token sessions, and SSL pinning for strong security • Build a dynamic dashboard showing account summary, recent transactions, and quick service shortcuts Modules to integrate: AEPS, DMT, BBPS, Recharge, Wallet, Ledger, Flight, PAN, and Loans through your existing REST APIs. Biometric integration: Implement RD Service intent flow for Mantra, Morpho, and Startek devices with proper capture and response handling during testing. Deliverables: • Complete Android Studio project with clean architecture • Signed APK for testing • Integration report confirming API connectivity, SSL pinning verification, and biometric capture on supported devices Since your APIs and Postman collections are ready, development can move quickly. I can share a clear milestone plan and timeline for production release. Looking forward to working on this fintech application.

@ssldevmaster

I can rebuild your B2B fintech portal into a fully native Android application using Kotlin with a clean MVVM architecture. I have experience integrating REST APIs with Retrofit, implementing secure OTP/MPIN authentication, device binding, and SSL pinning for fintech apps. I can also implement the AEPS RD Service intent flow and handle biometric capture for Mantra, Morpho, and Startek devices during testing. The app will include a dynamic dashboard, smooth navigation, and all modules like AEPS, DMT, BBPS, Recharge, Wallet, Ledger, Flight, PAN, and Loans connected to your existing APIs. I will deliver the complete Android Studio project, a signed APK for testing, and an integration report confirming API connectivity and biometric functionality.

@TyeStewart

Hey — saw your post about rebuilding your B2B fintech portal as a fully native Kotlin Android app. Translating a live web portal into mobile without breaking key flows (login, transactions, and reporting) is usually where things get risky. Quick question before I suggest an approach: Do you have an API layer already stable for all the portal features, or will some of this need to be built or refactored for the app? I’ve worked on native Kotlin fintech apps before, including secure B2B flows, role-based access, and transaction dashboards tied to existing web portals. If you can share access details, API docs, or a brief feature list for the portal, I’ll review it and tell you what makes sense for a clean native rebuild.

@damianc17

Hello, I am a perfect fit for your project because you are building a clean, professional, user-friendly solution that needs to feel seamless, integrated, and automated rather than clunky or overcomplicated. I specialize in designing and developing clean, intuitive interfaces, smooth API integrations, and reliable biometric SDK handling, ensuring lightweight UX and responsive layouts like SpiceMoney. With extensive experience in Kotlin using MVVM and Retrofit, I can deliver scalable, readable code and a fully native Android app matching your backend. Though new to Freelancer, I have completed similar projects off-site with polished, real-world results. I would love to chat more about your project and provide a timeline for milestones! Regards, Damian Chetty