Cross-Platform App & Web Developer Needed

@amitpandeyposin

Hello, I’d love to help build your professional service management platform. I have proven experience in cross-platform mobile app development (Flutter & React Native) and backend development with Node.js/Express. I’ve delivered solutions with appointment scheduling, calendar integration, invoicing, notifications (push/email/SMS), and secure client data management. My expertise includes MySQL/PostgreSQL, API integration (SMS/Email/Payment), and building scalable, secure backends. I focus on clean, professional UI/UX for productivity tools, ensuring smooth user experiences for professionals like doctors, lawyers, and consultants. I’ve previously built B2B SaaS apps, with deployment on AWS/GCP, and I understand compliance requirements in domains like healthcare and finance. I work independently, deliver on time, and maintain transparent communication. Let’s discuss your vision—I can provide a structured roadmap, milestone-based delivery, and a long-term collaboration approach.

@iTechnoweb

Hello there, I’m very excited about your project and believe my skills align well with the needs of the platform you're building. I have extensive experience in mobile app development. I can help you deliver a seamless, cross-platform app that ensures smooth appointment scheduling, billing, client management, and notifications. I also have expertise in UI/UX design for professional apps. Deliverables: - Cross-platform mobile app (iOS & Android) with core features: Appointment scheduling & calendar integration Billing & invoice generation Client profile management Push, email, and SMS notifications - Responsive web dashboard with seamless integration for all features. - Backend setup for secure data storage and API integrations (SMS, email, payment gateways). - UI/UX design tailored to your professional service users, ensuring a clean and intuitive interface. - Testing and Deployment across both mobile and web platforms. Looking forward to discussing the project further and providing a timeline and cost estimate based on the features you require. Best regards, Diya

@Srashtasoft

As a seasoned professional with 9+ years of expertise in Mobile App and Web Development, I can confidently say that SrashtaSoft - the team I lead - is more than capable of bringing your vision of a next-generation productivity and client management platform to life. We have comprehensively mastered relevant tech skills like Flutter, React Native, Node.js - ones that are central to producing a fully functional cross-platform mobile application as you require. Our extensive experience extends beyond just development to encompass vital aspects such as database management, UI/UX design, and exposure to integrating SMS/Email/Payment APIs. These skills resonates profoundly with what you're searching for in creating a essential tools for professionals. Additionally, we have successfully implemented intricate systems like appointment scheduling, billing & invoice generation using reliable technologies such as MySQL, PostgreSQL, and MongoDB - providing you peace of mind regarding secure data storage and privacy compliance. Lastly, adhering strictly to deadlines is one of our core strengths. We with not just want to build your Mobile application and Responsive web portal; we strive to build a long-lasting relationship based on trust and satisfactory deliverables. Accordingly, our reasonable pricing structure is milestone-based ensuring both efficient use of resources and quality output. Let's bring productivity into the lives of professionals together! Thanks, Team SrashtaSoft

@Oliahmed205

Hello, Hope you are doing well. We have previously done this kind of software development so if you want us to enhance our experience on your project and make it cool for you then please give us a knock us we can have a short meet and roll over the project

@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 and for web and backend on react js and node js, Python Django, Power BI, Scikit-learn, Data Science AI ML, PyTorch, TensorFlow, SparkML , 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)

@ciss26

Hello there Hope you are doing well as you are looking for a "Build a PROFESSIONAL SERVICE MANAGEMENT PLATFORM " so will make the same as you want , I have already develop and Design the so many Platform , - I will use latest technology to develop your Application - I will share daily update with you - I Will deliver your project within timeline - After project completion will share complete source code - I will provide 1 year support our develop work - I have 10+ year experience in Web & App development - I will make the 100% responsive design , fast loading , SEO friendly and all - I will provide you super admin panel there you can manage the whole thing Please initiate the chat so will discuss together and all Thanks & Regards Dheeraj K.

@winlancerinc

With my dynamic background, I am confident in my abilities to tackle this complex project successfully. For over 12 years, I have been practicing the art and science of software engineering - excelling in technologies like .NET Core, Xamarin/MAUI, and C#. Especially for your job description, my proficiency in backend frameworks (including Node.js) and database management (MySQL/PostgreSQL/MongoDB) will prove invaluable. In addition to technical expertise, I have experience developing applications with scheduling systems and APIs for notifications and payment integrations – exactly the features you're looking for. Ensuring secure data storage and compliance with privacy standards is an area where I'm dedicated to delivering excellence. My knowledge of OAuth, JWT, Azure Key Vault and other security protocols can be a valuable asset. To sum up, I bring to your table not just a proven track record of exposure to diversified projects but also a top-level rating on Freelancer as proof of clients' satisfaction. With me on board, you can rest assured that the project will be in capable hands - hands that will deliver a cross-platform mobile application, responsive web dashboard, efficient client management system aligned well with your unique vision! Let's make this next-generation platform a reality together!

@ntsolutions

Dear Client, We hope this message finds you well. We are N&T Negocios y Tecnologias s.r.l., a leading company with over 20 years of experience in the IT industry, specializing in developing web, mobile, blockchain, and AI projects. Our team is dedicated to providing innovative solutions that meet our clients' needs and exceed their expectations. We have carefully reviewed the project description for the "Mobile & Web App Developer for Professional Service Management Platform" and believe that our expertise aligns well with the requirements outlined. Our proposal for this project includes the following solutions: 1. Development of a cross-platform mobile application (Android & iOS) and a responsive web dashboard 2. Implementation of core features such as appointment scheduling, billing, notifications, and client profile management 3. Ensuring secure data storage and compliance with privacy standards 4. Building a scalable backend using Node.js or a similar framework 5. Integration of APIs for SMS/Email/Payment as needed 6. Collaboration with your team to design a clean and professional UI/UX In terms of architecture and technology, we recommend using Flutter or React Native for mobile app development, Node.js for backend development, and MySQL/PostgreSQL/MongoDB for database management. These technologies will ensure a seamless and reliable solution that meets both your current and future needs. We are excited about the opportunity to work on this project and are confident that our team has the skills and experience required to deliver exceptional results. We look forward to your positive response and the possibility of collaborating on this project. Thank you for considering N&T Negocios y Tecnologias s.r.l. for this project. Warm regards, N&T Negocios y Tecnologias s.r.l.

@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

@TechizeBuilder

Hi Puspendu M., I came across your project "Cross-Platform App & Web Developer Needed" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in JavaScript, Website Design, Mobile App Development, MySQL, Node.js, React.js, Flutter, Web Development. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak

@irisinformatics

Hello, i have experience about 6 year in fuII stack fuII deveoiment done around 50 website and ci and larval project. Read your requirements and able to do your work. Develop a cross-platform mobile application (Android & iOS) and a responsive web dashboard. Implement core features: Appointment scheduling & calendar integration Billing & invoice generation Notifications & reminders (push, email, SMS) Client profile management Ensure secure data storage and compliance with privacy standards. Build a scalable backend (preferably Node.js, Django, or similar). Integrate APIs for SMS/Email/Payment (if required). Work with our team to design a clean, professional UI/UX. Kindly start the interview so that we can discuss the project in detail. Regard Manish Giri

@ravimishra86

Hey, I can develop your cross-platform mobile app (Flutter/React Native) and web dashboard for professional service management. The platform will include appointments, billing, reminders, and client profiles, backed by a secure Node.js backend with API integrations for payments, SMS, and email. I bring proven expertise in scalable SaaS apps, UI/UX for productivity tools, and AWS/GCP deployment. Let’s discuss milestones and get your platform live. Kindly ping me when you are available. Looking for a positive response. Best Regards, Ravi

@santoshkumars17

Your search for a proficient full-stack developer ends here! I am Santosh, a seasoned professional with over five years of experience developing scalable and user-friendly web and mobile applications. Specializing in both frontend and backend, proficient in React.js, Node.js, as well as Flutter, I'm skilled in providing end-to-end solutions from conception to deployment. My expertise aligns perfectly with your project requirements. Having worked on diverse platforms like business websites, SaaS apps, e-commerce stores, etc., I have gained enough exposure to understand the intricacies of developing productivity tools for professionals. My prior experience with APIs integration, database management (including prominent engines like MySQL and MongoDB), notifications, scheduling systems, and payment integration uniquely equips me to handle the functionalities you require. I bring more to the table than just technical skills. My commitment to clean code, optimization techniques, timely delivery, and clear communication distinguishes me from others. With a strong grip on UI/UX best practices and an understanding of your target users - doctors, lawyers or consultants - I can assure you of an intuitive and professional interface for smooth client management. Ready to build something incredible together? Let's discuss!

@Abhi78331

With more than 5 years of experience in web and mobile app development, I have a solid foundation to understand the complexities and demands of your project. Proficient in both Flutter and React Native, I'm capable of building the cross-platform mobile application (Android & iOS) you need, as well as a responsive web dashboard that provides a clean and professional UI/UX. Furthermore, my expertise in backend frameworks like Node.js will allow me to construct a scalable backend that performs effectively and securely. I believe my past engagements would bring significant value to your project. Having previously developed scheduling systems, integrated payment gateways, and worked with SMS/Email/Push notifications, I have acquired crucial skills that align perfectly with your requirements. Additionally, I have created SaaS and B2B productivity tools before which cemented my familiarity with the niche your platform operates in. Furthermore, as an organization committed to providing comprehensive solutions, I reside on-the cusp of necessary hardware & IoT technologies such as Arduino and Raspberry Pi which could be highly beneficial for certain healthcare or finance/legal-based features. With optimum deployment knowledge too, leveraging AWS/GCP/Azure for viable project delivery wouldn't be an issue. I'm looking forward to not just working on a project but building a long-term collaboration with you!

@CodeniaTechno

Hello Puspendu, Our company, Codenia Technologies LLP, with over 10 years of experience in JavaScript, React.js, Flutter, Mobile App Development, Node.js, and Website Design, has carefully reviewed your project requirements for a Professional Service Management Platform. To ensure a successful project delivery, we propose to develop a cross-platform mobile application and a responsive web dashboard with core features like appointment scheduling, billing, notifications, and client management. We will prioritize data security, privacy compliance, and seamless integration of SMS/Email/Payment APIs. Our expertise in Flutter/React Native for mobile app development, Node.js for backend, and database management will guarantee a robust and scalable solution. We would appreciate the opportunity to discuss your project further in detail. Please let us know a convenient time to connect and explore the possibilities. Thanks, Rupesh Kumar

@frostwolff

Hi there, I’d be glad to help you build a cross-platform productivity and client management system tailored for professionals like lawyers, doctors, and consultants. Using Flutter (mobile) and React for the web, with a secure Node.js + PostgreSQL backend, I’ll deliver a responsive, intuitive app that streamlines scheduling, billing, reminders, and client communication. The platform will feature integrated calendars, automated invoicing, and notifications (push, SMS, email) with strong compliance around data privacy. Client profiles will be structured for quick access while APIs for payments and communication ensure seamless workflows. The UI/UX will follow a professional, minimal design that inspires trust in legal, healthcare, and finance settings. With proven experience in SaaS-style B2B tools and cloud deployment (AWS/GCP), I’ll ensure the system is modular, scalable, and ready for long-term growth. You’ll receive clean code, full documentation, and milestone-driven delivery—starting from core scheduling and billing to advanced integrations. Best regards, Brian

@raghuch2415

Hello There, Thanks for posting the job and hope you doing great. I've reviewed the requirements and understood that you are looking for an expert Flutter/React Native developer to join you. I can help you build your cross-platform productivity and client management platform with a mobile app (Flutter/React Native) and responsive web dashboard backed by a scalable Node.js + PostgreSQL architecture. The system will include appointment scheduling with calendar sync, billing & invoicing, client profiles, and multi-channel notifications (push, email, SMS), all designed with a clean, professional UI/UX for lawyers, doctors, and consultants. With proven experience in SaaS-style apps, payment integrations, and secure data storage, I ensure compliance with privacy standards while keeping the platform scalable for future growth. Let’s connect so I can share a milestone-based plan, timeline, and cost estimate to get your MVP live and production-ready. Best Regards,

@rahuljangid1993

Hello, I’d be glad to help build your next-generation productivity and client management platform tailored for professionals like lawyers, doctors, CAs, and consultants. I specialize in cross-platform mobile app development (Flutter/React Native) and scalable backend systems (Node.js/Django), ensuring secure, reliable, and user-friendly solutions. My approach will focus on delivering: Appointment scheduling & calendar sync with reminders (push, email, SMS) Billing & invoice generation with payment gateway integration Client profile management with secure data storage (GDPR/industry compliance) A responsive web dashboard + Android/iOS apps with a professional UI/UX Scalable backend with PostgreSQL/MySQL/MongoDB and API integration for SMS/Email/Payments I bring experience in SaaS productivity platforms, B2B tools, and API-driven apps, with a strong emphasis on clean architecture, maintainability, and security. Deployment can be handled on AWS/GCP/Azure, ensuring scalability for future growth. You’ll receive full source code, documentation, and milestone-based delivery. I can collaborate closely with your team to ensure the platform meets both technical and domain-specific needs. Looking forward to discussing timelines and priorities. Best regards, Rahul Jangid App & Web Developer

@GraphicsVolume

Hello Client, My experience in Android app development includes designing user interfaces, integrating with backend services, and testing and debugging. I have worked on several successful Android projects in the past, and I am familiar with the latest best practices and technologies in the field. brief overview of some different domains where Android app development is used. Social Media: Android apps are used extensively in the social media space. Popular social media platforms like Facebook, Instagram, and Twitter all have Android apps that allow users to access their accounts and share content. E-Commerce: Android apps are also used in the e-commerce space, allowing businesses to offer mobile shopping experiences to their customers. Apps like Amazon, eBay, and Walmart allow users to browse products, make purchases, and track their orders on their Android devices. Finance: Android apps are used in the finance industry to offer banking, investing, and budgeting tools to users. Apps like Mint, Robinhood, and PayPal allow users to manage their money, invest in stocks, and make payments from their Android devices. Education: Android apps are used in the education space to provide learning resources and tools to students. Apps like Duolingo, Khan Academy, and Coursera offer educational content in a variety of subjects, and allow users to learn at their own pace on their Android devices. I am always available for your support. Thanks Sarika

@mahig47

Hello! As per your project post, you’re looking to build a next-generation productivity and client management platform tailored for professionals like lawyers, doctors, chartered accountants, and consultants. The goal is to create a seamless solution that combines appointment scheduling, billing, reminders, and client communication across both mobile apps (iOS & Android) and a responsive web dashboard all backed by a secure and scalable system. My focus will be on delivering a cross-platform, secure, and professional-grade application. Core features can include: appointment scheduling with calendar sync, billing and invoice generation, push/email/SMS reminders, client profile management, role-based access control, and real-time notifications. I specialize in Flutter/React Native for mobile and React.js/Next.js for web dashboards, with proven experience in building SaaS platforms where performance, security, and usability were top priorities. My approach includes designing a clean, professional UI/UX that matches your target audience, developing modular features for easy scaling, and providing well-documented APIs and dashboards for smooth operations. Let’s connect and bring this platform to life as a future-ready solution for professional service management. Best regards, Nikita Gupta