PHP API Integration Specialist Long term Project

@Microlent

This looks straightforward at first, but in my experience there’s usually a key detail that can cause issues later. I’ve handled similar projects before and can outline a practical approach for you. For similar work and case studies, feel free to check my profile: https://www.freelancer.com/u/Microlent Let me know if you I'd like me to walk you through the plan. – Rajesh Rolen

@rahuliitm69

Hi there, Laravel and PHP are what I have been working on for the last decade, including a recent SaaS platform for Bank IT Asset Management with role-based access, subscriptions, reporting, notifications, and WhatsApp API integrations, which I can share privately. As half of the platform is already developed and the remaining requirements are clearly defined, I can jump directly into the existing codebase, fix the membership and subscription workflows, complete payment and invoicing modules, implement WhatsApp automation, improve the dashboard, and finish the multi-gym functionality without rebuilding anything. For the membership and billing modules, I will work on maintaining complete history, handling renewals/upgrades correctly, preventing data loss, and ensuring accurate payment tracking and settlements. I would request to connect for a quick discussion so I can review the current codebase, understand the pending issues, and provide an accurate timeline and cost estimate. Thanks, Rahul A.

@smilemittal181

Hello, I have reviewed your requirements and can help improve and complete your existing Laravel Gym Management SaaS without rebuilding the system. I can work on the membership workflow, payment and invoice management, dashboard improvements, WhatsApp and email automation, user profile enhancements, and multi-gym functionality while preserving existing data and business logic. My focus will be on fixing current issues, improving performance, maintaining clean code standards, and ensuring all modules work together reliably. I also have experience working with Laravel, MySQL, AJAX, API integrations, and subscription-based systems. I would be happy to review the current codebase and provide an accurate timeline and fixed-price estimate based on the remaining work. Best regards,

@iquallinfo

Hello, I am an experienced Laravel developer and can help complete and improve your existing Gym Management SaaS without rebuilding it. My Experience: - 5+ years of Laravel & MySQL development - Experience with SaaS, subscription, billing, and admin dashboard systems - Strong debugging and code optimization skills - WhatsApp API and email automation integration experience - AJAX, jQuery, Bootstrap, and REST API development Approach: I will work on your existing Laravel codebase, fix issues, optimize workflows, and ensure data integrity while maintaining current functionality. I am interested in a long-term collaboration and future enhancements as well. Looking forward to discussing the project. Thank you.

@amitpandeyposin

Hi, I have 8+ years of experience in Laravel, PHP, MySQL, AJAX/jQuery, and SaaS application development. I have worked on membership, subscription, billing, CRM, ERP, and multi-tenant SaaS platforms, including payment tracking, invoicing, automation, and role-based access systems. For your Gym Management SaaS, I can improve the existing codebase without rebuilding it, fix membership renewal workflows, subscription history, transaction management, invoice generation, dashboard enhancements, multi-gym support, and WhatsApp API integration. I have experience integrating WhatsApp APIs, email automation, payment systems, and PDF invoice generation. Strong debugging and optimization skills ensure stable production deployment. Estimated Timeline: 3–5 weeks Fixed Price Quote: 110000 INR – 150000 INR (after code review) I am available for long-term support and future enhancements. Looking forward to discussing the project. Best Regards, Amit Laravel & SaaS Developer

@Ranuka

Hello, I’m Ranuka, a Senior Laravel Developer with 12+ years of experience building and maintaining SaaS platforms, subscription systems, and payment workflows. 1. Laravel Experience 12+ years in PHP, Laravel, MySQL, AJAX/jQuery, and Bootstrap Extensive experience working on existing codebases, debugging, and performance optimization 2. Similar SaaS Projects Membership and subscription platforms CRM and management systems Billing, invoicing, and multi-tenant SaaS applications 3. WhatsApp API Experience WhatsApp Business API integrations Automated notifications, reminders, invoices, and transactional messaging 4. Estimated Timeline 3–5 weeks after code review and requirement validation 5. Fixed Price Quote Can provide an accurate fixed quote after reviewing the existing codebase and pending tasks I can improve the current system without rebuilding it, complete the pending modules, modernize the dashboard, and ensure clean, maintainable code for future enhancements. Ranuka Senior Laravel Developer 12+ Years Experience

@asait1192

Hi, I am an experienced API integration specialist with strong expertise in Laravel, PHP, RESTful APIs, cURL, XML, and MySQL. I have extensive experience with Gym Management SaaS platforms and API integration projects. My skills include: - Laravel and PHP backend development - RESTful API design, development and integration - cURL and XML handling - Database optimization with MySQL - Docker and Git version control - Long-term SaaS platform development I am available for long-term collaboration and can commit to 40 hours per week. I have a strong track record of delivering quality work on time. Please message me to discuss your Gym Management SaaS platform requirements in detail. Thank you!

@letscms

Hi, I have 12+ years of experience in Laravel, PHP, MySQL, AJAX/jQuery, and SaaS application development. I can work directly on your existing codebase to fix membership workflows, payment tracking, dashboard improvements, and multi-gym functionality. I have experience with subscription systems, invoice generation, PDF exports, and transaction management. I can integrate WhatsApp API for membership notifications, payment confirmations, renewal reminders, and invoice delivery. The focus will be on improving the current system, preserving membership history, and ensuring data integrity. I follow clean coding standards, proper testing, and documentation practices. Estimated timeline: 3–5 weeks after reviewing the codebase. Fixed-price quote can be provided after a quick audit of the existing system. I am also available for long-term maintenance and future feature enhancements. Best Regards Jitendra Sharma

@mayankinnovative

Hello, I reviewed your requirement for a PHP API Integration Specialist and would be interested in a long-term collaboration. My experience includes PHP development, REST APIs, third-party integrations, payment gateways, CRM systems, automation workflows, webhook handling, database optimization, and custom business applications. I am comfortable working with both new integrations and maintaining existing systems. My approach: • Review API documentation and existing codebase • Develop secure and scalable API integrations • Handle authentication methods (OAuth, JWT, API Keys) • Build webhook and callback processing • Optimize API performance and error handling • Create clean, maintainable PHP code • Test thoroughly and document integrations • Provide ongoing support and enhancements I can help with: • REST and SOAP APIs • Payment gateway integrations • CRM and ERP integrations • Third-party service connections • Data synchronization systems • Laravel and Core PHP development • MySQL database design and optimization • Automation and reporting tools A few questions: • Are you using Core PHP, Laravel, or another framework? • Which APIs are currently being integrated? • Is this a new project or ongoing maintenance work? • What is the expected weekly workload? I am available to start immediately and can provide reliable long-term support, quick communication, and consistent delivery of high-quality development work. Thanks

@hossamsoliuman4

As an experienced PHP backend developer with a specialization in Laravel and MySQL queries, I possess the skills necessary to enhance and optimize your existing Gym Management SaaS platform. My history of managing complex projects mirrors the demanding nature of your task. I've developed comprehensive applications on Laravel before, solving intricate problems along the way. My dedication to maximizing performance aligns perfectly with your project's needs. Database management is one of my core strengths: I ensure quantum storage without sacrificing speed or efficiency. By working on your existing codebase, my debugging and testing skills will help me locate and solve issues quickly, without infringing on the current system's functionality. One area where I believe I could provide valuable assistance is facilitating WhatsApp API integration. Utilizing my familiarity with APIs and services for real-time communication, I can make your platform fully automated - from membership activation messages to payment confirmations. As for timeline and cost, I will promptly assess once we discuss further.I am passionate about client satisfaction, quality work, and long-term collaboration just as you are seeking. Choose me, and let's transform your Gym Management SaaS into a flawlessly functioning system together!

@chetanghadiya007

Dear Hiring Manager, My name is Chetan, a full-stack web developer from Rajkot, India, with 14+ years of experience in backend and frontend development. I understand your requirement regarding adding card payment functionality to a separate product, and I am interested in working on this task. I have extensive experience integrating payment gateways and handling secure transaction workflows, ensuring smooth implementation. My core technical skills include: Backend: PHP, Node.js, Python Mobile Application: React Native, Flutter, Android, iOs Frontend: HTML5, CSS, JavaScript, jQuery Frameworks/Tools: Laravel, WordPress, Bootstrap, Electron, React.js Databases: MySQL, MariaDB, PostgreSQL, MongoDB Other Expertise: API integrations, hosting/server management, performance optimization, payment gateways I am available to start immediately and would be glad to discuss your project in more detail.

@hareshchauhan566

CAN WE CHAT NOW... Experienced Laravel/PHP developer with strong API integration expertise, ready to complete, optimize, and scale your Gym Management SaaS platform with clean, maintainable code and long-term support.

@sumipundir01

Hi, I can complete your Gym Management Saas project. I can do this job very well according to your needs. I will start immediately Best Regards, Sumit Pundir

@growwithgdp

✅ I have strong experience with Laravel, MySQL, AJAX/jQuery, and Bootstrap, and I am comfortable working within existing codebases rather than rebuilding systems. I can debug and enhance your Gym Management SaaS while preserving existing functionality and maintaining clean coding standards. ✅ I have worked on SaaS platforms involving subscriptions, billing, membership management, payment tracking, PDF invoices, role-based access, and notification systems. I also have experience integrating WhatsApp APIs for payment confirmations, reminders, activation messages, and automated workflows alongside email notifications. ✅ I can complete the remaining modules including membership history preservation, single active membership enforcement, partial payments, settlement management, premium dashboard improvements, multi-gym filtering, and WhatsApp automation. I am interested in a long-term collaboration and can provide a fixed-price estimate and timeline after reviewing the current Laravel codebase and database structure.

@bpatidar2793

Your project is exactly the kind of long-term Laravel SaaS work I enjoy improving and stabilizing an existing production codebase rather than rebuilding it. I have 10+ years of experience with PHP, Laravel, MySQL, REST APIs, payment workflows, subscription logic, and WhatsApp integrations. My approach would be to first audit the current architecture, fix the membership renewal and history logic, implement robust transaction handling with partial payments and invoices, complete WhatsApp/email automation, and modernize the dashboard without breaking existing functionality. I'm comfortable working with legacy code, debugging complex business logic, maintaining clean coding standards, and delivering incremental improvements with proper Git workflow, documentation, and long-term support.

@pavansharma2008

Hello, I have 10+ years of experience in Laravel and have worked on SaaS, membership, subscription, billing, and payment management systems. I can work directly on your existing codebase, fix membership workflows, complete transaction management, implement WhatsApp automation, enhance the dashboard, and optimize multi-gym support without rebuilding the system. I focus on clean, maintainable code and strong debugging practices. I would be happy to review the current codebase and provide an accurate timeline and fixed-price estimate.

@arshig8

With over 5 years of professional experience in Full Stack Development and a focus on Laravel projects, I bring the perfect blend of skills for your Gym Management SaaS project. My Laravel expertise, in particular, aligns perfectly with your technical requirements as I've developed a number of similarly complex SaaS platforms in the past. I'm adept at working on existing codebases and delivering high performing products as required. WhatsApp API integration is another area of my strength. I can seamlessly integrate this feature into your platform for efficient communication and user engagement. Similarly, my clean coding standards and debugging skills ensure that necessary tasks like designing modern dashboards, generating invoices or managing membership subscriptions are done consistently and with minimal bugs. Furthermore, my proficiency extends to multiple domains such as WordPress, MERN Stack and commerce solutions including Shopify which reinforces my ability to handle end-to-end digital solutions. Priced competitively and with a forward-thinking approach,I am ready for long-term collaborations even beyond this phase. Let's join hands to make your Gym Management SaaS the most efficient in the market!

@jamik414

Hello, I specialize in PHP API integration and have extensive experience working with Laravel, MySQL, and SaaS platforms. For your Gym Management SaaS project, I will review the existing system, address bugs, optimize the workflow, and implement WhatsApp integration. I will ensure smooth membership and subscription management, streamline payment transactions, enhance the dashboard UI, and automate WhatsApp and email notifications. Deliverables will include a fully functional and optimized Gym Management SaaS platform with improved membership handling, transaction tracking, premium dashboard UI, and automated communication features. I am based in India for smooth communication during your preferred time. Looking forward to discussing further details and collaborating on this long-term project. Best regards, Jamila

@kuldeepsharma30

I have strong experience working with Laravel SaaS applications, subscription management systems, payment workflows, invoicing, and third-party API integrations. Since your platform is already operational, my focus would be on improving and stabilizing the existing codebase rather than rebuilding modules. Based on the scope, I would start with a code and database audit to identify issues in the membership lifecycle, renewal logic, transaction tracking, and subscription history. The key objective will be to maintain complete membership records, support upgrades and renewals correctly, enforce a single active membership rule, and ensure accurate payment and balance tracking. I also have experience integrating WhatsApp APIs (Meta Cloud API, Twilio, Interakt, and 360Dialog) for automated notifications, reminders, payment confirmations, and invoice delivery. A few technical questions: • Which WhatsApp provider do you plan to use? • Is the system single-tenant or multi-tenant SaaS architecture? • Are invoices currently generated through a package or custom implementation? I can work directly on the existing Laravel codebase, implement the remaining features, improve dashboard reporting, optimize performance, and provide clean, maintainable code suitable for future enhancements. -G