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I am building a FlutterFlow-based mobile app and need a developer who is comfortable working mainly on the server side. Your first task will be to design and provision a solid MySQL database, map out a clear schema and set up all tables, indexes, and relationships so the app can scale without performance issues. Once the data layer is ready, I’ll rely on you to wire it to FlutterFlow through clean, well-documented APIs. The project involves three distinct integration paths: • Third-party services that supply user-generated content • A small set of internal REST endpoints we already use on the web version • A payment gateway to handle one-time and recurring purchases All endpoints must return JSON, follow REST conventions, and include basic rate limiting and error handling. I’ll share the current app flow, screen states, and sample payloads the moment we start, so you can stub everything quickly and then move to production-ready code. Deliverables • MySQL schema (SQL dump + ERD) • Deployed MySQL instance (cloud of your choice) • API source code with clear instructions to reproduce locally and on the chosen host • Postman or cURL collection for testing every route • Integration inside FlutterFlow with working data queries and mutations Acceptance criteria 1. CRUD operations complete in under 300 ms round-trip for 95 % of requests on a basic VPS. 2. Payment gateway returns success/failure webhooks that reflect instantly in the app UI. 3. Code passes simple linting and unit tests I’ll provide. If this sounds like your kind of challenge, let’s get started—I’m ready to move fast.
Project ID: 40577672
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67 freelancers are bidding on average ₹7,692 INR for this job

Hi, I can help with your "FlutterFlow Backend Development & Integration" project. I build clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving nosql couch & mongo, mysql, html, backend development, flutter, api development, flutterflow, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. I provide clean commits and clear documentation. Could we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "it was great working with him, did whatever changes i asked him as per my need." Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹10,000 INR in 3 days
7.2
7.2

With 8+ years of full-stack experience, I offer a unique expertise that bridges backend infrastructure with front-end mobile applications—making me the perfect match for your FlutterFlow project. Just as you require, I'm comfortable working mainly on the server side, and have a deep knowledge in API Development and backend development. In terms of Integrations, I have handled several third-party services and designed REST endpoints similar to what you have for this project: enabling seamless movement of user-generated content and handling sound payments utilizing payment gateways. All these processes are done through clean code which adheres to JSON convention while still maintaining basic rate limiting and comprehensive error handling. This project is precisely where I can bring exponential value by expertly linking your database layer to FlutterFlow—a task I've executed numerous times. My work packs consistency, efficiency, and rapid speed which aligns perfectly with your desired timeline. I am eager to embark on this challenge alongside you. Let us forge ahead rapidly towards building the best scalable mobile app together!
₹12,500 INR in 7 days
6.4
6.4

I can design and provision a solid MySQL database for your FlutterFlow app, ensuring it can scale effectively. My first step will be to outline the database schema and relationships based on your requirements. Based in Toronto, I work efficiently and am always available for quick communication. Let's get this project moving.
₹1,500 INR in 3 days
6.4
6.4

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
₹7,000 INR in 7 days
5.7
5.7

As the Founder of Solves Inn, I bring on board proven skills in backend development, API creation, and MySQL database management that are all critical to this FlutterFlow project. With our focus on building scalable and efficient systems, we’re adept at designing robust schemas, deploying well-performing MySQL instances, and ensuring smooth data integration. Crafting clean, RESTful endpoints with necessary rate limiting to maintain performance is something I've done successfully many times before. Moreover, working with third-party services and payment gateways isn't new to me. I can seamlessly bridge these APIs with your app, enabling efficient user-generated content supply and handling one-time and recurring purchases effortlessly. To ensure its effectiveness, I'll develop this using your chosen cloud platform for optimal deployment. Rest assured that all my code is delivered lint-free and with the guarantee that basic unit tests pass. Lastly, being a FlutterFlow enthusiast myself, I know how crucial smooth data queries and mutations are for the desired app experience. Merging my proficiency in HTML/CSS and API integration with your desired tool would allow me to create a seamless connection between the FlutterFront interface and the backend server solutions we will design together
₹12,500 INR in 6 days
5.0
5.0

Hey , Good morning! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in HTML, NoSQL Couch & Mongo, Flutter, MySQL, FlutterFlow, API Development and Backend Development. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Eager to hear your feedback
₹7,770 INR in 3 days
4.5
4.5

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu
₹7,000 INR in 7 days
4.0
4.0

Hi, Your project is exactly the kind of backend work I enjoy. I can design a scalable MySQL database, create an optimized schema with proper indexes and relationships, and build secure REST APIs that integrate seamlessly with FlutterFlow. ✅ Scalable MySQL schema + ERD + SQL dump ✅ Clean JSON REST APIs with validation, rate limiting & error handling ✅ Integration with third-party services, existing REST endpoints, and payment gateway ✅ Payment webhooks with real-time app updates ✅ FlutterFlow API integration, Postman collection, and deployment documentation I focus on performance, clean architecture, and maintainable code. I'll optimize queries and indexing to help achieve your <300ms response target while writing production-ready, well-documented code that passes linting and unit tests. I can start immediately, first delivering working API stubs from your app flow, then refining everything into a production-ready backend with regular progress updates. I'd be happy to discuss the architecture and get started right away.
₹7,000 INR in 7 days
3.8
3.8

Hi, I hope you're doing well. I understand you're looking for a backend-focused developer to build a solid foundation for your FlutterFlow application. The priority is creating a scalable data layer and reliable APIs that integrate seamlessly with FlutterFlow while supporting third-party services, your existing web endpoints, and secure payment processing. I will design an optimized MySQL schema with well-structured relationships and indexing, then develop clean REST APIs with consistent JSON responses, validation, rate limiting, and error handling. The backend will be documented thoroughly and integrated into FlutterFlow with working queries, mutations, and payment webhooks that keep the application synchronized in real time. The architecture will be built for performance, maintainability, and future growth. I'll deliver clean, well-documented code along with the database schema, API documentation, and testing resources to ensure a smooth deployment and handover. Best regards, Heorhii.
₹15,000 INR in 7 days
3.6
3.6

Hi, I can help build the backend for your FlutterFlow app by designing a scalable MySQL database, creating a well-structured schema, and developing secure REST APIs for seamless integration. I have experience with MySQL, Laravel/PHP, REST APIs, payment gateway integrations, and connecting backend services to FlutterFlow. I'll deliver the SQL schema with an ERD, API source code, deployed database, Postman collection, and complete FlutterFlow integration with optimized CRUD operations, proper error handling, rate limiting, and webhook support for real-time payment updates. Ready to start immediately.
₹1,500 INR in 2 days
3.6
3.6

I'm excited to take up this challenge as it aligns perfectly with my expertise. Over the last 8 years, I have gained a profound understanding of MySQL and proven my skills in web and app development using various frameworks like Laravel and Codeigniter. I am confident in my ability to design and provision a scalable database of your choice, whether it is on the cloud or locally hosted. Moreover, my adeptness in JavaScript, Ajax, PHP, NodeJS, AngularJS and CSS allows me not only to integrate third-party services seamlessly but also build well-documented REST endpoints efficiently. By utilizing 'stubbing', I can rapidly move from initial designing to production-ready code swiftly without compromising quality. Lastly, as someone who has worked extensively on payment gateways, I assure you a seamless experience for your users while handling one-time purchases or recurring transactions. My attention to detail coupled with stringent rate limiting and error handling would ensure all API endpoints return JSON in accordance with REST conventions and meet your acceptance criteria. Together we'll not only meet but exceed your expectations!
₹4,000 INR in 5 days
3.6
3.6

Your project already defines the right priorities for a scalable mobile backend: solid data modeling, predictable API behavior, and fast integration cycles. The main risk in FlutterFlow projects is usually not the UI layer, but weak backend structure that becomes hard to maintain once payments, third-party integrations, and real-time state updates start growing. I can handle the backend side end-to-end, including MySQL schema design, indexing strategy, REST API implementation, authentication flow, payment webhook processing, and deployment setup. My approach would start with defining the ERD and access patterns first, ensuring the schema supports the app flows efficiently before exposing endpoints to FlutterFlow. For the API layer, I would structure endpoints with consistent JSON contracts, proper validation, centralized error handling, and rate limiting from the beginning instead of adding them later as patches. Payment events would be processed asynchronously to keep webhook responses fast while updating the app state immediately and reliably. I can also provide: - Production-ready API structure with clean separation of services - Postman collection and local setup instructions - Database migration scripts and reproducible environments - Performance-oriented query optimization for the <300ms requirement - Deployment guidance for a low-cost VPS or cloud setup Based on the scope, this is a backend engineering project rather than a simple integration task, so I would recommend implementing it in phases with fast validation milestones. I’m available to start immediately.
₹12,500 INR in 18 days
3.7
3.7

Hi, This project is a great fit for my backend expertise. I have experience designing scalable database architectures and building REST APIs that integrate seamlessly with FlutterFlow applications. I'll start by designing a normalized MySQL database with proper relationships, indexing, and performance optimization, then expose clean RESTful JSON APIs with authentication, validation, rate limiting, and structured error handling. After that, I'll connect everything to FlutterFlow, integrate your existing web endpoints, third-party services, and the payment gateway while ensuring webhook events update the app in real time. You'll receive: * Optimized MySQL schema (SQL dump + ERD) * Deployed cloud database * Well-documented API source code * Postman collection for every endpoint * Complete FlutterFlow API integration * Documentation for local setup and deployment Performance, maintainability, and clean architecture are priorities, and I'll ensure the backend is built to scale while meeting your response-time expectations. **Estimated timeline:** 3–4 weeks **Estimated budget:** **$2,500–$4,000** (finalized after reviewing the app flow and integrations). I'd be happy to review your screen flows and sample payloads and suggest the most efficient backend architecture before development begins. Looking forward to discussing your project.
₹7,000 INR in 7 days
3.4
3.4

I'm enthusiastic about joining your project to develop a robust backend for your FlutterFlow app. With extensive expertise in MySQL database design and API integration for scalable applications, I can ensure a solid data structure and efficient server-side logic. I'm adept at implementing RESTful services, incorporating third-party content, internal endpoints, and payment systems, all while ensuring performance and security with JSON outputs, rate limiting, and error handling. Ready to deliver a comprehensive solution from schema to fully integrated APIs in FlutterFlow. Let's achieve great results together!
₹7,000 INR in 7 days
2.9
2.9

hi, i read every word of your brief, and i already know exactly how to make this work. i have experience building scalable backends for flutterflow apps with mysql, rest apis, payment gateway integrations, and third-party services. i can design an optimized database schema, develop secure json apis, connect everything with flutterflow, and provide complete documentation, postman collection, and deployment support. i focus on clean, scalable code with fast response times, proper error handling, and reliable webhook integrations. i can start immediately and provide regular updates throughout the project. thank you.
₹12,500 INR in 5 days
2.3
2.3

Hi, I can help build the complete backend for your FlutterFlow application, starting with a scalable MySQL database architecture and progressing to production-ready REST APIs. My focus is on clean design, performance, security, and seamless FlutterFlow integration. My approach includes: * Designing a normalized MySQL schema with indexes, foreign keys, and an ERD for long-term scalability. * Developing secure REST APIs (Laravel/Node.js) with JSON responses, authentication, rate limiting, validation, and error handling. * Integrating third-party services, your existing internal APIs, and a payment gateway supporting one-time and recurring payments with real-time webhook updates. * Connecting everything to FlutterFlow with fully functional queries and mutations. * Delivering SQL dumps, API source code, deployment documentation, and a complete Postman collection. I have experience with MySQL, REST API development, FlutterFlow integrations, payment gateways, and cloud deployments. I write clean, well-documented code and provide regular progress updates throughout the project. I'm ready to start immediately and can move quickly from database design to API implementation and FlutterFlow integration.
₹7,000 INR in 7 days
2.5
2.5

Hi, I can build the MySQL backend for your FlutterFlow app, create clean REST APIs, integrate third-party services, connect your existing web endpoints, and configure one-time and recurring payments. The best solution is to first review the app flow, screen states, payloads, and current APIs. I’ll then design a scalable MySQL schema with proper relationships and indexes, deploy it to a cloud/VPS environment, and build secure JSON APIs with validation, rate limiting, logging, and error handling. I’m comfortable with FlutterFlow, MySQL, REST APIs, backend development, payment gateways, webhooks, third-party API integration, database optimization, Postman testing, and cloud deployment. Deliverables will include: * MySQL database schema * SQL dump and ER diagram * Tables, indexes, and relationships * Deployed database instance * CRUD REST APIs * Third-party and internal API integrations * Payment and subscription webhooks * FlutterFlow queries and mutations * Rate limiting and error handling * Postman/cURL collection * Setup documentation and tests I’ll focus on fast API responses, reliable payment updates, clean code, and a backend structure that can scale as the app grows. Best regards Ankit
₹5,000 INR in 1 day
2.5
2.5

With my experience as a Full Stack Developer, specializing in MEAN and MERN stack development, I bring to your project a unique skill set that combines the robustness of server-side development with the agility demanded by FlutterFlow-based apps. I am well-versed in designing, provisioning, and scaling MySQL databases with an eye on performance optimization. Not only can I quickly stub everything to facilitate our kickoff, but also ensure the headers — be it for rate-limits or error handling — conform to REST conventions which guarantees productivity and scale. Essential to your project is securing clean APIs through proper authentication and authorization protocols. With proficiency in OAuth2 and JWT, you can trust that these will be properly implemented. The deliverables you've listed for this project align neatly with my forte - from your MySQL schema requirements to deploying it on a cloud instance, developing and documenting APIs, curating test suites, up-to-the mark linting and unit tests validation plus integrating FlutterFlow UI with appropriate critical paths.
₹8,500 INR in 8 days
2.5
2.5

Hello, I reviewed your project requirements and I'm confident I can help build the backend for your FlutterFlow application. I have 5+ years of experience in PHP, Laravel, MySQL, API development, and database design. I have developed secure backend systems, REST APIs, admin panels, authentication modules, and optimized MySQL databases for business applications. I can help with: ✔ Database schema design and normalization ✔ MySQL tables, relationships, indexes, and optimization ✔ REST API development and integration ✔ Authentication and user management ✔ Backend logic for FlutterFlow ✔ Performance optimization and testing I write clean, scalable, and well-documented code and provide regular progress updates throughout the project. I'm a direct developer (not an agency) and can start immediately. I'd be happy to discuss your project in more detail. Looking forward to working with you. Regards, Anusha Laravel | PHP | MySQL | API Developer
₹8,000 INR in 10 days
2.2
2.2

Hello, I can definitely build a scalable backend for your FlutterFlow app, starting with a well-structured MySQL database and clean REST APIs designed for performance and future growth. My approach: Design an optimized MySQL schema with proper relationships, indexes, and ERD. Develop secure REST APIs with JSON responses, authentication, rate limiting, and error handling. Integrate third-party services, your existing internal APIs, and the payment gateway with webhook support. Connect everything to FlutterFlow with fully functional queries and mutations. Deliver clean, documented code with Postman collections and deployment instructions. Deliverables: MySQL schema (SQL dump + ERD) Deployed cloud database Production-ready API source code Postman/cURL collection Complete FlutterFlow backend integration I have experience building high-performance backend systems, API integrations, payment workflows, and FlutterFlow-compatible architectures, and I can start immediately. Best regards, Somender Singh
₹12,500 INR in 7 days
2.2
2.2

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