Web & Android App for ePayYatra

@santoshkumars17

With my firm grasp of both mobile app and PHP development, I am confident in providing you with a comprehensive solution for your portals. Over five years in the field, I have honed my skills to offer an optimized and maintainable codebase, which aligns perfectly with your requirements. I'm not only an expert at integrating APIs but also an adept database manager. This makes me well-suited for enabling smooth payment gateway integration and establishing a reliable transaction history for your users. My expertise extends to front-end work as well, specialized in React.js and HTML/CSS, which will greatly assist in creating an enhanced web experience for ePayYatra. Besides, I can fluently communicate between web and mobile applications via REST-based APIs ensuring perfect synchronization and delivering efficient solutions like you seek. Familiarity with MySQL backend is the root of my skills that can enable future-proof architectures using Java/Kotlin in Android Studio that will exceed your expectation. To ascertain my capabilities further, I assure you of comprehensive documentation using PHPDoc for every new API method and ready-to-test APK published on Play Console's internal track ensuring effortless QA for your team. By choosing me, you're getting much more than just a developer; you're gaining a highly motivated individual who is dedicated to producing top-notch results within deadlines. Let's connect and give life to your ideas!

@CreativeIshan

Hello there, I’ve carefully reviewed your project requirements and have a few important questions to discuss so we can align clearly and start the work smoothly. Could you please connect with me right now so we can discuss the details and move forward? I specialize in mobile app development and have hands-on experience in building scalable, user-friendly, and performance-driven applications for startups and businesses. My core skills include: Android & iOS App Development React Native JavaScript Backend APIs (Node.js / PHP) App Performance & Security App Maintenance & Support I focus on understanding business goals first and then delivering a solution that adds real value to users and drives growth. Thanks for posting this project — looking forward to working with you ? Thanks & Regards, Ishan K.

@happycoderz

With utmost enthusiasm, Happy Coders are more than ready for the exhilarating challenge your project proposes. We comprehend the acute and intricate details of your job description. Our team is proficient in both Android and PHP, wielding primary programming skills for your project. We have honed our abilities in the lines of Android Studio, Java, Kotlin, Core PHP, and MySQL; all essential elements your project demands. What sets us apart from other freelancers is our unwavering commitment to not just developing functional applications but also delivering with cut-throat efficiency. We guarantee the agility and robustness of our developed code, making sure they mirror the neediest conditions. Being ardent patrons of continuous improvement, we assure you to seamlessly integrate existing codebases and achieving perfect synchronization between platforms via well-documented RESTful API designs. Moreover, we’ve had considerable experience in aligning payment gateways like Razorpay and Paytm, and can definitely bring insightful advantages to your decision-making process as well. Meeting each acceptance criterion mentioned including live-testing in sandbox mode or pen-trial tested login system is definitely not a daunting ambition for us. We have that expertise starting from vigorous testing capabilities to publish APKs on internal Play Console tracks ready for exemplary QA operations.

@DigitalNightOwl8

Hello Already have something live to show you I am professional mobile software engineer with skills including Web Design, PHP, Website Development, Content Writing, Elementor, HTML, WordPress and Website Design. Please send a message to discuss more about this project. Always happy to hear from you Thanks

@jagratip3

Hello, Your requirement is clear: modernise the experience while keeping both platforms perfectly synchronised and production-reliable. That’s exactly the kind of system integration work I handle. I’m a full-stack engineer with deep experience in core PHP + MySQL backends and companion Android apps, building secure REST APIs that power payments, auth, and high-volume transaction views. Why I’m a strong fit ✔ Razorpay / Paytm integrations (tokenisation, webhooks, reconciliation) ✔ JWT authentication with OTP & session control ✔ High-performance pagination & filtering ✔ Clean REST design with versioning ✔ PHPDoc + Postman documentation ✔ Modular Android (Java/Kotlin, MVVM/Clean) Approach First stabilise & version the API layer → implement secure auth → wire sandbox payments → build transaction services with indexed queries → connect Android → run live validations. Rendering 10k records under 200 ms is achievable with proper indexing, caching strategy, and optimised payloads. Deliverables ✔ End-to-end tested payment flow ✔ Pen-test friendly JWT security ✔ Documented APIs ✔ Play Console internal build ✔ Git-managed, maintainable code I can recommend the right gateway based on MDR, settlement, and webhook maturity. Ready to start once access is shared. Best regards, Jagrati.

@devpradeep91

As a versatile developer with ample experience in PHP and Android app development, I believe I have precisely the skills you need for this project. Not only am I comfortable working with core PHP and MySQL backend like your current codebase, but I also have an in-depth understanding of REST principles. This means that I can ensure seamless integration between your web platform and the proposed Android app for an improved user experience. Let's connect.

@khushiArt

Hello, Hope you are doing well. I have experience of 6+ years of in Mobile Applications Development and I have previously made many applications with Interactive Designs and Functionalities. I have reviewed your requirement. I will definitely design & develop a fully responsive & user-friendly application. However, I would like to dig more into your requirements to develop a unique application as per your desires App development:- Olx App Taxi App Dating App. Educational App Multivendor App. Hotel and Restaurant Booking App. Doctors/ hospital management App. Please have a look at my portfolio link : https://www.freelancer.com/u/khushiArt Best Regards Khushbu

@freedomincIN

Greetings, I’m a Business Development Executive excited to assist you with your project. I specialize in designing and developing modern, responsive websites that perform seamlessly across all screen sizes while delivering an engaging and interactive user experience focused on maximizing ROI. Beyond standard website development, I also have strong expertise in ecommerce solutions, including Shopify store design, customization, and optimization to help businesses drive both paid and organic traffic effectively. I’d love to discuss your requirements in detail and explore design options that best align with your goals. I’m committed to building long-term professional relationships backed by quality work and positive results. Looking forward to your response. Best regards

@chiragm078

As the head of a seasoned development agency, I believe my firm, led by myself, Chirag, is best suited for your ePayYatra project. Our diverse team of experts has been delivering top-notch web and mobile solutions for over 5 years, meeting the bespoke needs of our clientele. We are more than familiar with your stack - PHP with MySQL backend - having built scalable applications on it in the past. Our areas of expertise such as API integration and secure, robust mobile app development further align with your current requirements for enhancing ePayYatra's web experience and creating an accompanying Android application. And since both platforms need to operate in perfect sync, our wide-ranging skills can ensure that your transaction histories are filtered to perfection, user logins are secured via session management & OTPs, and payment gateways function seamlessly. Apart from leveraging my 100% client satisfaction rate, my primary advantage is encapsulated in one crucial word: Efficiency. We value your time and business goals deeply. I assure you well-documented REST-based API integrations alongside postman collections and inline PHPDocs for every new API method—standards we consider essential for easy version control on Git; allowing future-proofing while maintaining seamless functionality between your web and android apps—which I know is paramount for you as a digital service entrepreneur.

@techdeveloperzz

As the founder of Tech Developerz, I understand the importance of efficient digital-service portals like ePayYatra. My team specializes in creating robust, scalable, and secure web and mobile applications - just what your project demands. With our deep knowledge of PHP, MySQL, and REST APIs alongside our prowess in Android Studio with Java and Kotlin, we are uniquely poised to reimagine ePayYatra and bring it to life on both fronts with unified perfection. What sets us apart is our dedication to offering solutions beyond mere lines of code. We take the time to understand your goals and recommend the best fitting technological approaches for long-term sustainability. This business-focused mindset fits perfectly with your vision of a modernized payment gateway, reliable user authentication flow, filterable transaction history, and flawless REST-based API integration. In terms of experience to back these commitments, we have successfully developed several mobile/web applications with similar technical challenges. As a testament to our professionalism and transparency, we provide clean and well-documented code that ensures easy maintenance in the long run. Let's discuss more about your preferences for payment library, timeline expectations and get this exciting project rolling so we can transform your idea into a powerful & user-friendly reality!

@Priyasinghj

I can help you deliver a refreshed PHP web platform and a tightly synced Android application for ePayYatra and ePanMitra, with strong focus on payments, security, and performance. Technical Approach Backend: Core PHP + MySQL (RESTful, versioned APIs, Git-managed) Auth: OTP-based login with JWT session handling, secure token refresh Payments: Razorpay (primary recommendation for stability, docs, web+Android SDK parity); Paytm supported if required Transactions: Optimized indexed queries + pagination to ensure <200 ms rendering for large datasets API: Fully REST-compliant, documented via PHPDoc + Postman collection Android App Built in Android Studio (Kotlin) with modular MVVM architecture Secure API consumption with token handling Payment + transaction sync with web in real time APK delivery via Play Console internal testing track Acceptance Readiness ✔ Sandbox + live payment testing ✔ JWT auth aligned with penetration testing standards ✔ Performance-optimized transaction history ✔ Complete API documentation ✔ QA-ready APK delivery Timeline (Estimated) Backend & APIs: 10–14 days Android app: 10–12 days Testing & handover: 4–5 days I’ve worked on PHP-based fintech and service portals with Android companions and understand the importance of clean APIs, audit-ready logs, and secure payment flows. While I’m new on Freelancer, I bring structured execution, clear communication, and disciplined delivery. I’m ready to start immediately once access is shared.

@mariamz24

Hello , We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on PHP, Java, Mobile App Development, Android, Kotlin, Android App Development, Android Studio, API Integration, Cordana, REST API Please come over chat and discuss your requirement in a detailed way. Regards

@zakwanm1

Given the complexities of your project - integrating the Razorpay or Paytm Payment gateway, a robust session management system for secure authentication, and ensuring seamless coordination between the web and mobile platforms via RESTful APIs - my professional background as a developer with extensive experience in Android App Development and API integration makes me an excellent fit. Not only am I well-versed in PHP with MySQL backend, proficient in Rest API creation and management, but I have worked with diverse stacks like React Native and Firebase (auth/database/APIs) that also align perfectly with some of your technical needs. My commitment to producing optimal value for every task transcends simply writing clean and maintainable code or functioning within agreed-upon KPI's. It extends to things like adequately documenting tasks for enhanced knowledge exchange via create inline PHPDocs, or postman collection which is a small key to furthering Kirana Networks growth. In conclusion, by trusting this job to me, you are securing a reliable professional who truly values your project's success over mere completion.

@ZeeshanXOfficial

I can handle a full refresh of both ePayYatra and ePanMitra by upgrading your core PHP + MySQL web platform and delivering a tightly synced Android app with clean, future-proof architecture. I’ll implement secure JWT + OTP authentication, a high-performance transaction history optimised to render under 200 ms even at scale, and REST-compliant, versioned APIs fully documented with PHPDoc and a Postman collection for easy testing. For payments, I recommend Razorpay as the primary gateway (excellent docs, stable webhooks, smoother Android SDK) with Paytm as an optional secondary rail if required; both sandbox and live flows will be tested end-to-end. The Android app will be built in Kotlin (MVVM) using Android Studio for long-term maintainability, published to an internal Play Console track for QA. I’m comfortable working directly inside existing PHP codebases, will keep everything Git-versioned, and can share a relevant PHP + Android payment project on request along with a clear delivery timeline before we start.