FinTech Mobile App — Development

@ozbas

❤️❤️❤️ Greetings ❤️❤️❤️ I have carefully reviewed your FinTech Mobile App project and understand why the public description is intentionally limited. I’m comfortable signing an NDA and working from the detailed specification privately. I am Ozgur Ozbas, a Full-Stack Mobile Developer with 10+ years of experience in Flutter, Laravel, PHP, Node.js, REST APIs, databases, authentication, payment integrations, and production mobile applications. For this project, I would recommend Flutter for iOS + Android, backed by a secure REST API and PostgreSQL/Supabase. I can build the foundation around modular architecture so future payment providers, KYC/AML services, and financial products can be integrated without rewriting the core application. I can handle: • Secure registration and authentication • User profiles and authorization • Wallet/account architecture • Send/receive money workflows • Transaction history and status tracking • Payment/API integration layer • KYC integration readiness • Push notifications • Admin and transaction management • Audit logs and reporting • Secure API communication • Sensitive-data protection • Database architecture • Error handling and testing • Deployment and technical documentation Q1. After signing the NDA, can you share the complete financial workflow and transaction lifecycle? Q2. Do you already have a preferred payment/KYC provider, or should the architecture remain provider-agnostic initially?

@Hammadhassan21

Hey, I’ve carefully reviewed your project, and I understand you’re looking for a secure, scalable FinTech foundation rather than just a mobile UI. I can help build this with a modular approach focused on financial data security, reliable transactions, and future integrations. I will work with React Native for the mobile app, backed by a secure API and PostgreSQL/Supabase architecture. Key deliverables will include authentication, wallet/transaction infrastructure, secure API integration, admin functionality, notifications, and testing with proper error handling and audit considerations. I can also support deployment and technical documentation for a maintainable MVP. I have hands-on experience with similar projects and would be happy to share relevant examples during our discussion. One quick question: which payment, KYC, or financial API integrations are planned for the initial MVP? Portfolio: https://www.freelancer.com/u/Hammadhassan21 Best Regards, Hammad Hassan

@Microlent

The important part of this FinTech MVP is getting the financial architecture right before adding the proprietary workflow. I’d keep the wallet/transaction layer isolated from the mobile UI, with strict auth, audit logging, secure API communication and room for payment/KYC providers to be added without rewriting the core. I’ve worked on finance-focused SaaS and transaction-driven platforms, including Fledger and BidMandi, and can handle the React Native/Flutter side together with the backend, database, APIs and admin layer. For the MVP, I’d structure the work around authentication, user verification readiness, account/wallet flows, transaction states, history, notifications and admin controls, with security considered at the data and API level rather than added later. Once the NDA is in place, I’d want to review the proprietary financial flow before giving a fixed estimate. I can then break it into clear milestones with timeline and cost. If you share the detailed flow after NDA, I can outline the architecture and MVP plan. Jenifer

@sunainawbst

✅ FinTech Mobile App| React Native | Firebase |Mobile App Development Expert Hi, Hope you are doing good. I have read your requirements carefully and can give you 100% assistance as a React Native Developer for building or enhancing your mobile application. I specialize in creating fast, stable, and scalable apps for both iOS & Android, backed by a secure and efficient Firebase architecture. I’d love the opportunity to discuss your idea further and collaborate on developing a modern, intuitive, and impactful app. (Note: Please consider the current budget as flexible — we can finalize it after discussing the complete scope.) Thanks & Regards, Kajal

@InterconnectBPO

I can build a secure and scalable FinTech mobile application that meets your requirements. My focus will be on creating a modern UI/UX, robust user authentication, and a secure backend architecture. I noticed you require features like user profiles, transaction interfaces, and KYC integration readiness. My experience aligns perfectly with these needs, ensuring a seamless financial workflow. With a strong background in React Native and secure API development, I have successfully completed several projects involving payment systems and financial applications. I prioritize security, focusing on encryption and sensitive data handling. I am excited about the potential for this long-term project. Regards, InterconnectBPO

@point2solutions

--- FinTech Mobile App Development --- I can help build the technical foundation for your FinTech MVP with secure mobile, backend, and transaction architecture. Here's my approach: → Build the mobile app using Flutter or React Native with secure authentication and financial workflows. → Develop the backend, PostgreSQL database, APIs, transaction history, notifications, and admin functions. → Prepare payment/KYC integrations with proper authorization, encryption, audit logs, and security controls. → Provide testing, deployment support, documentation, and complete source code ownership. Flow Registration & KYC → Secure Account → Wallet/Transactions → Send/Receive → Transaction History → Notifications Question Can you share the preferred payment/KYC providers after the NDA so I can propose the right architecture and timeline? Let's connect... Thanks

@rbtech1984

Hello!! I understand you need a secure FinTech mobile application with a scalable backend, authentication, wallet and transaction infrastructure, notifications, KYC readiness, admin tools, and strong security. • Can you share the detailed workflow after the NDA? • Do you already have preferred payment or KYC providers? • Should the first version support both Android and iOS? The application can be built with Flutter or React Native using a secure backend, PostgreSQL, encrypted communication, strong authorization, audit logs, and modular APIs. Transaction handling, error management, testing, documentation, and deployment support will be included. Relevant FinTech, payment, wallet, API, and secure mobile projects have been completed successfully. Careful architecture and security-first development will provide a strong foundation for your long-term product. Let us discuss the confidential requirements and development plan in chat. Best regards Farhin B

@zainalitariq245

Hi, A FinTech app needs a strong foundation from day one secure transactions, reliable APIs, and an architecture that can scale. That’s where I can help. I can build your MVP using: Mobile. Flutter Backend: Node.js + REST APIs Database: PostgreSQL / Supabase Security: Authentication, authorization, secure API communication, token/session security, and sensitive-data handling Integrations. Payment APIs, wallets, KYC/AML, and third-party financial services Admin: User management, transaction management, and reporting I have experience with API-driven applications, payment/transaction workflows, secure backend development, and scalable architectures. I can also share 2–3 relevant projects privately after the NDA. Happy to sign the NDA and review the detailed product requirements. Looking forward to discussing it.

@ciss26

Hi there, Hope you are doing well I’d love to help build your FinTech Mobile Application with a secure, scalable, and production-ready architecture. we have experience developing mobile and web applications involving secure authentication, payment workflows, wallets, APIs, dashboards, and transaction management. I understand that this is a confidential financial product, and I’m comfortable working under an NDA and keeping the business model and proprietary mechanisms strictly confidential. Key Features Secure user registration & login OTP/email authentication User profiles and account management Financial wallet/account architecture Send & receive money Transaction processing and status tracking Transaction history and receipts KYC/identity verification readiness Push notifications Secure API communication Role-based access and authorization Admin dashboard Transaction and user management Reporting and audit logs Error handling and fraud-prevention foundations Recommended Tech Stack Mobile: Flutter Backend: Node.js + NestJS Database: PostgreSQL API: REST APIs Thanks & Regards Dheeraj K.

@a4logic

Hello, As a seasoned freelancer with over 15 years of experience under my belt, I bring a robust and wide-ranging skill set to the table. From developing WordPress and Shopify sites, crafting APIs, to deploying complex cloud systems, my repertoire aligns seamlessly with your project requirements. Not only am I fluent in React Native and Flutter - the preferred architectures for your FinTech product - but I've also successfully integrated financial APIs, developed payment providers, implemented KYC/AML systems, and more. Security is of paramount concern for your financial app, and I have a deep understanding of all the critical elements. My prior work on secure authentication, authorization, secure API communication, and effecient fraud-prevention frameworks will help safeguard your users' delicate information while providing them with a seamless digital transaction experience. Lastly, my commitment to code quality couldn't resonate more strongly with your needs. This dedication is reflected in every project I undertake and has earned me repeat clients over the years. With me as part of your team, you can trust that you'll receive a fast, secure, scalable, maintainable, professionally designed mobile app that is capable of evolving into a larger market-winning FinTech platform. Let's turn your vision into reality! Thanks!

@komalshaikh92

Hi there, I can build the mobile application using React Native with a secure backend API and PostgreSQL/Supabase, keeping the architecture modular for future payment, KYC/AML and financial-service integrations. I’ll also focus on secure authentication, authorization, encrypted API communication, sensitive-data handling, transaction records, audit logging, error handling and proper testing throughout the development. I can provide the complete source code, backend/database architecture, API integration framework, admin functionality, deployment assistance and technical documentation, with the structure prepared for future expansion. A couple of questions I would like to clarify: Do you already have preferred payment, KYC/AML or financial API providers, or should I recommend suitable options based on the private product requirements? Once the NDA is in place, will you provide the complete financial workflow and MVP feature specification for the first development phase? There are a few other details I’d like to discuss around the proprietary workflow, transaction architecture, security requirements, integrations and MVP milestones, but due to Freelancer.com's character limit I can't cover everything here. Please open a chat with me so we can discuss the NDA, review the detailed requirements and establish the best technical architecture, timeline and development plan.

@ravichedwal

With my extensive development experience spanning over 8 years, I can confidently build and deliver for you an efficient and secure FinTech mobile application. I am proficient in both React Native and Flutter, offering you the opportunity to choose the best architecture for your project. More importantly, I hold a deep understanding of the unique security challenges that come with building financial apps like yours, ranging from authorization and encryption to token/session security and secure database architecture. As regards scalability, I have delivered over 145 successful projects with small businesses, startups and enterprises – it would certainly be no challenge building a mobile app that is prepared for future integration of payment providers as your platform expands. My core expertise also includes working with APIs and third-party integration – I have worked on projects involving QuickBooks API among others.

@DIGITALJOY

Hi, Your FinTech project is a strong fit for my experience in mobile development, secure backend architecture, API integrations, and financial workflows. I can build the technical foundation as a production-ready MVP rather than just a UI prototype, with a focus on security, scalability, and maintainability from day one. I recommend Flutter for the mobile application, with Node.js/NestJS or Python FastAPI, PostgreSQL/Supabase, secure token-based authentication, encrypted communication, role-based authorization, audit logging, and a modular API layer for future payment/KYC/AML integrations. I'm comfortable working under an NDA and keeping the proprietary business model and financial mechanism confidential. I can also provide relevant FinTech/payment project examples privately. Estimated Timeline: 8–12 weeks Queries: After the NDA, will the MVP need to connect to a specific payment/wallet provider, KYC/AML service, or banking API, or should we initially build the integration layer with sandbox/mock providers? Which countries and currencies are targeted for the first release, as this will affect the payment architecture, KYC/AML requirements, and compliance considerations? I'm ready to begin with the NDA and technical discovery phase and build a secure foundation that can scale with your FinTech product. Looking forward to discussing the project.

@maxscender

I can help you build a FinTech MVP that’s secure, functional, and ready to scale—without the overhead of a large agency. I’ll focus on three critical areas from the start: 1. Security architecture. I’ll build authentication, encryption, and secure API communication as the foundation, not an afterthought. Token/session management and audit logs will be in place from day one. 2. A modular, scalable core. I’ll set up the database and backend so your proprietary financial workflow can be added cleanly after the NDA. The code will be structured to accommodate future payment-provider integrations without a rewrite. 3. A clean, fast MVP. The mobile app will be built with React Native (or Flutter, depending on your team’s preference), with a focus on a smooth user experience and maintainable code. I’ll also handle the admin panel and reporting, so you have visibility into transactions and user activity from the start. I’m ready to sign an NDA and dive into the detailed specs.

@toriquldev123

Hello There! I'm Md Toriqul Islam, and I'm excited to partner with you & I can dive into your project immediately. I'm a mobile app developer experienced in building secure FinTech applications with wallet architecture, transaction systems, and KYC ready backends. I understand you need the technical foundation for a FinTech mobile app, including authentication, secure wallet and transaction infrastructure, send and receive functionality, admin tools, and a scalable backend, with full details shared privately under NDA. I've handled similar FinTech and payment focused projects before. I am skilled in React Native or Flutter, secure REST API development, PostgreSQL and Supabase, and authentication and encryption for financial applications. I can share relevant FinTech projects, my backend experience, and a timeline and rate once we connect, and I'm fully open to signing an NDA before receiving the full spec. I'm ready to start right away and happy to discuss any details. Looking forward to hearing from you. Best regards, Md Toriqul Islam

@ykarora26

With extensive experience in developing secure FinTech mobile apps, I understand the critical need for robust financial functionality and modern UI design. My past projects involving secure user authentication and transaction interfaces align perfectly with your requirements. Could you please share more details about the specific APIs and backend systems needed for seamless integration? Regards, Yogesh Kumar

@irisinformatics

Hi, I have 8+ years of experience in mobile and full-stack development. I can build a secure, scalable FinTech app with modern UI/UX, authentication, wallet/transactions, payment APIs, notifications, backend integration, and admin functionality. I’m comfortable with Flutter/React Native and secure, scalable API architectures, and can work with your confidential specifications under NDA. Thanks, Manish Giri

@iqra137

Hello! I'm Iqra, and as a seasoned freelancer with a demonstrated competence in mobile and web development, let me assure you that my 5+ years of experience make me the ideal candidate for your critical FinTech Mobile App project. Having worked on various robust digital solutions handling interfaces with secure financial operations, APIs, and modern UI/UX, your project aligns perfectly with my well-developed skill set. In tackling your venture, I pledge to uphold strict confidentiality at all times and understand the gravity of handling sensitive financial data and transactions. With a proficiency in React Native and Flutter, I am capable of building the efficient technical foundation you require, backed by a secure API communication system and modular architecture ensuring scalability for future enhancements. Over the years, I have not only honed my technical aptitude but also nurtured my flexibility in integrating 3rd party financial services such as payment providers, wallets, and KYC/AML systems - a synergy that will quintessentially benefit your project. Furthermore, my design competency extends to crafting professionally attractive UI/ UX for maximum User Interaction which will be crucial for our platform's success. So if you value thoroughness without compromising on creativity for effective digital solutions - let's join forces and build the future together!

@shakilan4

Hi, I can build your FinTech mobile app with React Native/Flutter, secure backend APIs, PostgreSQL/Supabase, authentication, wallet/transaction flows, notifications, KYC readiness, and admin functionality. I have experience with APIs, payment systems, AI/automation, and secure cloud-based applications. I’ll focus on scalable architecture, security, clean code, testing, and complete source-code ownership. I’m also comfortable signing an NDA before reviewing the confidential product details. Best Regards, Shakila Naz