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I’m building a custom online hub for a service-based business that lets clients book appointments, purchase consulting sessions and manage subscription packages in one place. The entire system needs to be coded from scratch rather than relying on Shopify or WooCommerce, so I have full control over performance, security and future upgrades. The finished product must look contemporary, load quickly on both phones and desktops, and remain simple for non-technical staff to administer. Secure, role-based log-in, a well-structured database, and a tidy admin panel are all essential. I expect clean, well-commented code, an intuitive UI, and a scalable architecture that makes adding new features later straightforward. Please include: • High-fidelity responsive design with cross-browser, cross-device consistency • Front-end implementation (React, Vue, or similar) backed by a fast API layer • Robust back-end with secure authentication, encrypted data in transit and at rest, and protection against the usual OWASP Top 10 threats • Booking calendar, consulting session checkout, and subscription management modules tied to an easy-to-navigate dashboard • Comprehensive automated and manual testing plus performance tuning so pages hit a 90+ score on Google PageSpeed Insights • Deployment scripts and clear documentation so I can move the system between environments without headaches Hand-off isn’t complete until the platform is fully tested, the admin panel is populated with sample data, and I can verify that upgrades (new services, extra pages, additional payment options) can be slotted in without heavy refactoring. If this sounds like your wheelhouse, tell me which tech stack you’d choose and how you’ll guarantee security, speed and maintainability from day one.
ID Projek: 40315600
112 cadangan
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Aktif 20 hari yang lalu
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112 pekerja bebas membida secara purata $16 USD/jam untuk pekerjaan ini

⭐⭐⭐⭐⭐ With CnELIndia, you don't just get a decades-long expertise in web and app development, you get a dedicated partner invested in your success. Our unparalleled commitment to quality and innovation aligns perfectly with your vision for a state-of-the-art service platform. We propose using React for the frontend and secure PHP for the backend, giving you an intuitive UI paired with a robust and protected architecture. Our extensive experience in data scraping ensures an efficient, easily navigable booking calendar as well as consulting session checkout and subscription management modules that are always up-to-date. Furthermore, our intimate knowledge of PHP, WordPress and WooCommerce will ensure that your platform is fast, secure and highly maintainable, now and in the future. One of our hallmarks is rigorous testing to guarantee reliability; from automatic checks to manual quality assurance measures, we won't sign off until every part performs at its best. Equally important to us is scalability, thus we'll make deploying the system to different environments effortless through carefully crafted scripts and documentation. Choose CnELIndia for on-point execution of your vision into a service platform that's sleek, high-performing and fully-equipped for any future demands.
$12 USD dalam 40 hari
9.1
9.1

As a seasoned developer with a proficiency in both frontend and backend technologies, I am equipped to take on your Full-Stack Responsive Service Platform project. To ensure that your project is modern, navigable, and load quickly on various devices, I propose leveraging my knowledge in React.js for the front-end implementation and PHP (Laravel, CI, CakePHP, Yii) for the backend. With these technologies, I will bring to life a platform that aligns perfectly with your need for simplicity in administration and scalability for potential future upgrades. My expertise extends beyond merely building the platform you want to having it maintain its optimal performance irrespective of changes or additions made. With rigorous automated and manual testing at every stage of the development cycle, as well as performance tuning techniques, I can guarantee that the pages will rank high on Google PageSpeed Insights - something above 90+ score - ensuring an excellent user experience. Furthermore, my repertoire includes crafting secure environments. Thanks....
$15 USD dalam 40 hari
8.2
8.2

Hello, **** You can track the project’s progress using the tracker. I’m available to work 40 hours per week **** I have carefully reviewed your requirement for building a full-stack, scalable service platform from scratch. I would implement the system using React for a fast, responsive UI and Node.js with a structured API layer, backed by PostgreSQL for reliability and scalability. The platform will include secure role-based authentication, booking calendar, consulting checkout, and subscription management within a clean admin dashboard. I will ensure OWASP-compliant security, encrypted data handling, optimized performance (90+ PageSpeed), and modular architecture so future upgrades can be added without refactoring. You will receive well-commented code, deployment scripts, tested features, and complete documentation with sample data for smooth handover and environment migration. I have 10+ years of experience in full-stack development and have built similar service-based platforms with strong focus on performance and maintainability. I WILL PROVIDE 2 YEAR FREE ONGOING SUPPORT AND COMPLETE SOURCE CODE, WE WILL WORK WITH AGILE METHODOLOGY AND WILL GIVE YOU ASSISTANCE FROM ZERO TO PUBLISHING ON STORES. I eagerly await your positive response. Thanks
$12 USD dalam 40 hari
8.5
8.5

With over 12 years of experience in high-quality, scalable, and secure software development, my team and I have built a solid reputation as top-rated experts on Freelancer.com. We are confident in our capacity to deliver the full-stack responsive service platform you envisioned with the necessary contemporary design, optimized performance, and user-friendly administration. After a thorough assessment of your needs, we would recommend using React.js on the front-end backed by a robust API layer and we always follow OWASP Top 10 threats protection for utmost security. In addition to ensuring cross-browser, cross-device consistency, we focus on speed. Our method involves not only reactive performance tuning but also proactive them during the initial development phase. This approach ensures that your pages hit an impressive 90+ score on Google PageSpeed Insights consistently. Along with this, we provide comprehensive automated and manual testing to eliminate any bugs or performance issues before launch. Thanks....
$12 USD dalam 40 hari
8.2
8.2

Hi, This is exactly the kind of system I specialize in. I have 5+ years of full-stack experience (MERN, MEAN, Laravel) and have built custom platforms with booking, payments, and subscription workflows from scratch. Proposed stack: Frontend: React.js (fast, scalable SPA, responsive UI) Backend: Node.js (NestJS) or Laravel (secure, structured APIs) Database: PostgreSQL / MongoDB Infra: AWS with Docker for smooth deployment I will deliver: High-performance, responsive UI (90+ PageSpeed optimized) Secure auth (JWT, RBAC), encrypted data, OWASP best practices Booking calendar, session checkout, subscription management Clean admin dashboard with easy content/service control Well-structured, documented code with deployment scripts I focus on scalability and maintainability, ensuring new features (services, payments, pages) can be added without major refactoring. Happy to share similar work and discuss your workflow in detail. Let’s connect. Best, Bhargav
$12 USD dalam 40 hari
7.1
7.1

Hello I will be able to help you. M ay I know you need website or Mobile app? 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
$8 USD dalam 40 hari
6.6
6.6

Hi, Let's have a look at my profile and would like to start work on it right now. After checking your job details I would like to help you build this custom platform from scratch with excellent code flow of execution using my development skills with perfection. Please feel free to ask if you have any queries. Here’s how I’ll approach your project: - High-quality responsive design that works smoothly across all devices and browsers - Role-based authentication, encrypted data (HTTPS + secure storage), and protection against common vulnerabilities (OWASP Top 10) - Booking calendar, session checkout, subscription management, all connected to a simple dashboard - Optimized code, fast API responses, and techniques to achieve 90+ PageSpeed score - Modular code structure so new features can be added without major rework - Both automated and manual testing to ensure everything works perfectly - Clear documentation and scripts so you can move between environments without issues I am looking forward for your positive response. Thanks and regards.
$10 USD dalam 40 hari
6.0
6.0

With a decade-long expertise in Web Development, I and my team at Web Crest have excelled at delivering robust, high-performing web platforms using various tech stacks like MERN, MEAN and more. Based on your project needs, we can use React to ensure top-notch cross-browser and cross-device compatibility. We would also back it with a fast API layer using our skills in PHP for improved performance. As for the all-important security aspect, rest assured, we are well aware of the OWASP Top 10 threats and know how to build secure systems. Our years of experience in API Development, HTML, Mobile App Development, and PHP have taught us how to thoroughly test each component, leading to a platform that's secure and scalable. Moreover, given your requirements on speed and maintainability, we leave no stone unturned. Our solutions typically achieve 90+ scores on Google PageSpeed Insights - thanks to comprehensive automated and manual testing plus performance tuning. To make sure you're in control even after hand-off, we create detailed documentation and deployment scripts that will help you move the system effortlessly between different environments. Lastly, our portfolio speaks to the quality of our work with long-term vision and business impact always in mind. So let's team up and bring your vision to life
$8 USD dalam 40 hari
6.4
6.4

Hi, I see you are in need of a robust online service hub for appointment management, and I am thrilled to bring my expertise in API Integration to your project. I've handled administrative and network security tasks in a variety of settings, and I am confident that I can create solutions tailored to your needs. API Integration is a skill that I can deftly navigate, which makes me a great fit for this project. I have built similar solutions for my past clients, focusing on user experience without compromising functionalities. To be clear, I can get started on this immediately and handle it efficiently for you. Thank you and I look forward to your positive response.
$13 USD dalam 15 hari
5.8
5.8

Hello, With extensive experience in full-stack development, I will craft a custom, high-performance online hub tailored for your service-based business, ensuring seamless booking, subscription management, and client engagement. What specific features or integrations are you most focused on for scaling your platform in the future? Thanks, Juan Aponte
$25 USD dalam 24 hari
5.5
5.5

With over 5 years of experience in full-stack development, I am confident in my abilities to build your custom online hub exactly to your specifications. I have extensive experience in the tech stack you specifically mentioned - from frontend using React.js to a secure backend with Node.js. To ensure high performance, fast loading times, and contemporary design, I'm proficient in using optimized HTML and CSS alongside JavaScript. What sets me apart from the competition is not just my ability to code but the efficiency and quality with which I do so. My familiarity with API integration and database management means that your platform will be robust and effectively integrate various modules like a booking calendar and subscription management system. In addition, I am highly experienced in cybersecurity, including encryption and OWASP Top 10 threat protection, ensuring that your client data remains secure. Moreover, I place a strong emphasis on post-delivery support and documentation. With deployment scripts and clear guidance, you will be able to move your system between environments without headaches. Lastly, I always prioritize clean and well-commented code for easy future upgrades ensuring your platform remains scalable as your business grows. Let's collaborate closely to bring your vision to life!
$12 USD dalam 40 hari
5.3
5.3

Hello, I came across your project Full-Stack ResNponsive Service Platform and I am very interested in working with you. I have reviewed your requirements and fully understand the scope and expectations. I specialize in PHP, JavaScript, Mobile App Development, HTML, Full Stack Development, Backend Development, Frontend Development, Vue.js, Database Management, API Development and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity, and professionalism. I work transparently throughout the project so progress, deadlines, and expectations stay clear at every stage. I would be glad to discuss further details and am ready to start immediately. Looking forward to hearing from you. Regards, Anum
$15 USD dalam 40 hari
5.1
5.1

Hello, I can deliver what you need. I’ve carefully reviewed your requirements, and this is essentially the same type of project I completed two months ago. I am a skilled freelancer with 6+ years of experience in PHP, HTML, Vue.js and I can deliver the results as quickly as possible. Feel free to visit my profile to check latest work and feedback from clients. Connect in chat to discuss details and next steps. Regards.
$15 USD dalam 40 hari
4.9
4.9

As a seasoned full-stack developer with expertise in React.js, Node.js, PHP, and various other relevant technologies, your project aligns perfectly with my skillset. Over the years, I have successfully created complex web applications from scratch, using robust frontend frameworks backed by fast API layers —exactly what you require for your envisioned service platform. In terms of security and performance, I prioritise them on every project I undertake. I will implement secure authentication and encryption for data in transit and at rest to ensure maximum protection against OWASP Top 10 threats. In addition to this, my extensive knowledge of database design and management guarantees not only a well-structured database but also contribution towards faster loading times for cross-browser and cross-device responsiveness.
$10 USD dalam 40 hari
5.3
5.3

Hello Mate!Greetings , Good afternoon! 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 Backend Development, HTML, Vue.js, Full Stack Development, PHP, Frontend Development, Mobile App Development, JavaScript, API Development and Database Management. 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.. Many thanks
$50 USD dalam 33 hari
4.6
4.6

A custom platform like this needs clean architecture, strong security, and a smooth booking experience, and I can build it from the ground up with scalability in mind. I develop full-stack service systems using React with a fast API backend like Node.js or Laravel, creating responsive interfaces and modular dashboards that make bookings, consulting checkouts, and subscription management simple for both clients and staff. Security and performance are built in from day one with role-based access, encrypted data handling, hardened APIs, and optimisation strategies that keep load times fast and PageSpeed scores high across devices. You’ll receive well-structured, documented code, deployment scripts, a populated admin panel for testing, and a system designed for easy future upgrades without heavy refactoring. I’ve delivered similar custom platforms and can share examples, tech stack recommendations, and a clear milestone plan. Ready to start immediately. Syed
$16 USD dalam 40 hari
4.7
4.7

**DO NOT PAY ME UNTIL I COMPLETE! :)** Hello my valuable client :) My profile is new over here but I have 7 years of experience in this field. I have completely understood about your project. Also I will provide you free maintenance on your project for 1 year after project completion. I can definitely complete this in your timeframe. Give me one chance to prove myself. Hit the chat button to get started. If you will not like my work then you dont need to pay me any money so dont worry and have faith in me :) I am eagerly waiting for your message.
$8 USD dalam 40 hari
4.6
4.6

Having developed a solid foundation in Full-Stack Development over the past 8 years, I believe I can provide your service-based business with a high-performance, secure and scalable platform that checks all your boxes. I would propose utilizing Laravel for the back-end, as it is renowned for its robustness and speed. For the front-end, React is my language of choice because of its flexibility and performance. To assure security, I will implement role-based log-in, encrypted data in transit and at rest to protect against threats including the OWASP Top 10. Additionally, I will dedicate ample time to testing both manually and automated to ensure a bug-free platform. Speed optimization is another area where you can trust me; let me leverage my experience for your solution to score high on Google PageSpeed Insights. Moreover, given my proficiency with CMSs particularly WordPress and Shopify, I understand there can be some long-term need for site management even after deployment. You can count on me for future support and maintenance. Let's connect to discuss how else we can elevate your project together! I'm excited to leverage my skills to deliver a contemporary-looking platform that remains simple for non-technical staff to administer!
$8 USD dalam 40 hari
4.3
4.3

As a seasoned Full-Stack Developer with over 7 years of experience, I bring to the table a highly diverse skill set that makes me an ideal candidate for your project. The unique features your project mandates, such as a custom booking calendar and subscription management modules, require someone who is not only comfortable with the full spectrum of development but also capable of thinking scalably to ensure easy integration of future functionalities. My proficiencies in React.js for high-fidelity design, Node.js backend for fast API layering and flexible database management come in play here. I am well-versed in implementing secure authentication, protecting against OWASP Top 10 threats with encrypted data in transit and at rest. Additionally, I consistently deliver clean, well-documented code and as you advance towards maintenance or upgradation requirements, my code will prove to be easily comprehensible reducing dependencies on me as a developer. I strongly believe in effective communication, which reflects through my practice of daily updates throughout projects ensuring you remain informed regarding the ongoing progress. My reputation for delivering projects on or before the deadline has garnered significant client appreciation as it enables them to continue their business operations smoothly. Let's collaborate to build something that's not only visually pleasing but also efficient and scalable, guaranteeing security and maintainability.
$15 USD dalam 40 hari
4.3
4.3

Hi, I understand you need a fully custom, scalable platform for managing bookings, consulting sessions, and subscriptions, built from scratch with full control over performance and security. Our team can build a modern, responsive system using a front-end framework like React or Vue.js, backed by a fast Node.js/Express or Python/FastAPI API layer, and a relational database like PostgreSQL. The architecture will support role-based access, secure authentication, and encrypted storage of sensitive data. We’ll implement a clean admin dashboard for managing bookings, sessions, and subscriptions, plus a client-facing interface that’s intuitive on mobile and desktop. Security will be enforced with OWASP best practices, HTTPS, and proper input validation. Performance tuning, caching, and code optimization will help achieve 90+ Google PageSpeed scores. All code will be clean, well-commented, and accompanied by deployment scripts and thorough documentation for easy future upgrades. We’ve delivered similar service platforms with subscription and booking workflows.
$10 USD dalam 40 hari
4.2
4.2

Nairobi, Kenya
Ahli sejak Mac 20, 2026
₹12500-37500 INR
₹750-1250 INR / jam
₹5000-9000 INR
₹12500-37500 INR
₹1500-12500 INR
$5000-10000 USD
₹600-1500 INR
₹12500-37500 INR
€250-750 EUR
₹1500-12500 INR
₹1500-12500 INR
$250-750 USD
₹75000-150000 INR
$30-250 USD
$750-1500 USD
₹12500-37500 INR
$250-1200 USD
₹75000-150000 INR
₹1500-12500 INR
$10-30 USD