SenderX – Multi-Tenant Android SMS Gateway SaaS | Bulk SMS, Campaigns & REST API

@Microlent

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in Android, API Development, Mobile App Development, PHP, Web Development, REST API, SaaS, Laravel As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen

@rajat07me

A Laravel 12 SaaS like SenderX only works if the multi-tenant logic, SMS queue flow, payment handling, and Android device sync are all tied together cleanly; otherwise the launch looks fine on the surface but becomes unstable once real users, plans, and webhooks start hitting it. I’d approach this by reviewing the current build against the live demo, tightening the tenant/payment/API flow, and then handling the remaining launch-critical gaps in a structured way. I’ve worked on custom Laravel platforms, admin/customer dashboards, subscription systems, third-party payment integrations, and API-based products where reliability mattered more than just getting screens completed. In a product like this, the important part is making sure retries, logs, callbacks, and user isolation behave properly in real usage, not only in demo mode. A small plus from my side: I can also help flag any weak points in deployment readiness before go-live. - Is the codebase already completed and you need polishing/bug fixing, or do you want full development from the SenderX demo/spec? - Which of the 8 payment gateways must be live in phase 1? - Do you already have the Android app/device connector working, or is that part still pending?

@webbookstudio

Hi there, We understand you're looking for a team to work on SenderX, a multi-tenant Android SMS Gateway SaaS platform built with Laravel 12, which enables businesses to utilize their Android phones and SIM cards as SMS gateways through a REST API. Our team at Webbook Studio has relevant experience in PHP, Laravel, and API development, having worked on similar projects such as custom PHP development for e-commerce platforms and CRM systems. For instance, we developed a learning platform website for children using PHP, WordPress, and custom design, which involved integrating APIs for seamless functionality. We can deliver a fully functional SaaS-based SMS Gateway platform with all the required features, including multi-user management, Android device pairing, and REST API integration. Can you please share more details about the specific requirements and customizations you need for the SenderX platform? Feel free to message us to discuss the details! — Webbook Studio

@shivmirthyusl

Hi, As the founder of IT Flex Solutions India and with over 19+ years of experience in web, mobile app, and API development, I am confident that my team and I are the right solution providers for your SenderX project. Our extensive understanding and expertise in Laravel, PHP, REST API design and implementation, as well as our mastery of mobile app development including Android, make us an invaluable asset for your task. Having successfully delivered 483+ projects similar to your SenderX platform description, we understand the importance of all the major functions such as multi-tenant system, bulk SMS management, scheduled messages, secure API keys, sender tracking, multi-language support etc. We have also developed the ability to integrate various payment gateways like you have - Stripe, PayPal and others - so we're well-placed to add this functionality without any glitches. Finally, it's worth mentioning that our company ethos revolves around scalability and innovation: important aspects when it comes to developing a SaaS based system catering to businesses of different sizes. We believe in creating tools that address the unique needs of every client. Thanks, SBM

@starttechno

I’d start by wiring the Android app’s QR pairing, dual-SIM status, and Firebase device presence into the Laravel 12 tenant flow, matching the “Your SIMs, Your Rules” design shown in the attachment. The deliverable will be a working SenderX SaaS with tenant/admin dashboards, plans and subscriptions, API-key protected REST sending, bulk campaigns, contact personalization, scheduling, inbox replies, delivery tracking, retries, idempotency, and real-time webhooks in 7 days. I’ll structure message queues around each paired Android device and SIM, with rate limits and last-known device state so offline phones recover safely without duplicate sends. The API documentation and usage data will be exposed per customer, while payment providers remain isolated behind a reusable gateway layer. I built ClearAgent as a multi-tenant SaaS running a live customs operation end to end, including tenant-specific workflows and permissions. Should the first release support all eight payment gateways immediately, or should Stripe and one regional gateway be prioritized? Muhammad Saad

@ykarora26

With experience in SaaS platforms, I understand the complexity of SenderX's SMS Gateway system, especially the multi-user subscription model and REST API functionalities. Could you share the primary target audience for this platform? Regards, Yogesh Kumar

@extreamcode

Hello, You’ve already solved the hard part here: turning Android phones and SIMs into a controlled SaaS gateway, and the remaining risk is making the platform feel reliable under real traffic. SenderX is a strong fit for my Laravel, API, payment, and dashboard experience, especially with multi-tenant flows, webhook handling, subscription logic, and device monitoring. I’ve built and fixed PHP/MySQL systems, REST integrations, payment gateways, and admin/customer panels, so I can help tighten the API flow, message lifecycle tracking, device pairing, and subscription billing paths. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Could you share the current codebase status, the Android app pairing flow, and whether you need any changes to the REST API docs or webhook payloads? Looking forward to your reply so we can finalize the exact plan. Which part of SenderX would you like refined first: SaaS billing, Android pairing, REST API, or message tracking? Thanks, Asad

@dynamitewebsol

My name is Sanjay, and I represent Dynamite Web Solution, a highly-experienced team excelling in PHP and web development. With over a decade of experience in the industry, we are credited with over 1300+ reviews from satisfied buyers just like you. Our team is confident that we have the prowess to deliver precisely what your project demands. Laravel? Rest API? User registration? Multi-language support? We have impeccable hands-on experience with all of these elements. In addition to this, our familiarity with payment gateway integrations such as Stripe, PayPal, and others will ensure a seamless, turnkey solution for your SaaS needs. As your service is about converting Android devices into SMS gateways, our understanding of backend customization would add immense value. We can successfully implement features like bulk SMS contact grouping, scheduled SMS with timezone support and real-time webhooks that you have outlined in your project description. In conclusion, we offer you 10+ years of expertise in PHP and web development paired with our commitment to delivering an exceptional product on time and within budget. Let’s join forces to create a first-class senderX platform!

@jafarali14

Hi Sir/Madam, I am a PHP/Laravel developer with 9+ years of experience building SaaS platforms, REST APIs, admin dashboards, subscription systems, payment integrations, webhooks, and database-driven applications. SenderX is closely aligned with the type of Laravel systems I work on. I can work with your existing Laravel 12 codebase to improve, customize, or extend the SaaS platform across subscriptions, plans, device management, API access, SMS tracking, webhooks, and payment integrations. My approach: I’ll first review the existing architecture, database, API flow, Android device communication, queues/jobs, webhook handling, and subscription/payment logic. Then I’ll implement required changes in a modular way while protecting existing functionality. For SMS delivery, I’ll pay particular attention to device status, retries, rate limits, idempotency, delivery callbacks, and reliable message tracking so the platform remains stable as usage grows. I can also handle Laravel admin/customer dashboards, API documentation, authentication, role-based access, payment gateway flows, and production deployment requirements where needed. I’m comfortable taking over an existing product and providing ongoing development rather than rebuilding working functionality unnecessarily. Could you share the specific features or customizations you want to make in SenderX so I can review the scope and suggest the best implementation approach?

@ranjika08

SenderX is not a simple website build — the risky part here is the backend coordination between tenants, plans, devices, outbound SMS requests, delivery status, and payment events. If those pieces are not engineered carefully, SaaS products like this run into duplicate sends, broken billing states, or messy logs. I’d start by mapping what is already built versus what is still missing, then close the gaps in the core Laravel flow first. My background is in custom web apps and SaaS-style systems where dashboards, APIs, billing, and role-based access all have to work together smoothly. Projects like this need more than frontend completion; they need stable business logic, proper webhook handling, and a setup that is maintainable after launch. I can also help keep the admin side easy to manage so you are not buried in manual fixes later. - Are you expecting a clone of the live demo only, or are there feature changes beyond it? - Should the first release include all 8 gateways, or can we prioritize Stripe/PayPal plus the region-specific ones you need most? - Do you already have hosting/server specs ready for deployment?

@DeveloperStation

Hi, I've built Laravel SaaS with subscription plans, Stripe payments and real-time updates before, so the SenderX architecture reads as familiar ground for me. One thing worth deciding early: how you want the Android pairing to stay reliable. Devices drop offline, SIMs run out of balance, and messages queue up. I'd lean on idempotent message handling plus retries with a webhook confirming delivery state, so nothing silently fails when a phone reconnects. Are you planning to ship your own Android client, or expose the send API and let each tenant install it? For a large multi-tenant Laravel app with Stripe and real-time push, we did the event platform below. ADFW: powered by Laravel, Stripe, Pusher Since we're new to each other, we can start with a first milestone on device pairing plus the send API so you only release on working code. Which payment gateway is priority for launch? Adil

@ZohaibRoy

⭐⭐⭐⭐⭐ Build Your SMS Gateway with SenderX for Seamless Communication ❇️ Hi My Friend, I hope you are doing well. I just checked all of your project requirements and I can see you are looking for a robust SMS gateway solution. You have no need to look any further as Zohaib is here to help you! My team is already doing 50+ similar projects for SMS gateway platforms. I will create a user-friendly, efficient SMS gateway using Laravel 12 that meets all your needs while ensuring a smooth integration with your existing systems. ➡️ Why Me? I can easily build your SMS gateway with all the essential features as I have 5 years of experience in web development, focusing on Laravel and API integrations. My expertise includes creating multi-user systems, managing subscriptions, and implementing secure REST APIs. Additionally, I have a strong grip on database management and real-time monitoring, ensuring your SMS gateway operates seamlessly. ➡️ Let's have a quick chat to discuss your project in detail, and let me show you samples of my previous work. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ Laravel Development ✅ REST API Design ✅ SMS Gateway Integration ✅ Multi-user Management ✅ Database Management ✅ Subscription Systems ✅ Real-time Monitoring ✅ Secure API Implementation ✅ Bulk SMS Handling ✅ QR Code Integration ✅ Payment Gateway Integration ✅ User Dashboard Creation Waiting for your response!

@DrSyafiq

I can take this from scope to a tested handoff without bloating the first milestone. You're building SenderX – Multi-Tenant Android SMS Gateway SaaS | Bulk SMS, Campaigns & REST API, where the real delivery risk is usually in the workflow details, not just the feature list. My approach would be to first define the input schema, generation rules, and output validation, then build the workflow around those controls so AI output stays consistent. Quick question: Which external integrations are absolutely required for MVP, and which can be staged after launch? Also, do you already have the API and screen designs, or should the first milestone define the end-to-end mobile flow? Best, Dr. Syafiq

@kamransiyal9

Hi! I'm an experienced full-stack developer with strong expertise in Laravel, REST API development, multi-tenant SaaS architecture, and payment gateway integrations (Stripe, PayPal, Razorpay, Paystack, Flutterwave, Mollie, SSLCommerz, UddoktaPay). I understand the scope for SenderX: a multi-user SaaS SMS gateway turning Android phones and SIMs into SMS senders via QR pairing, with subscription/plan management, secure API keys, bulk SMS with contact groups, scheduled sending with timezone support, delivery tracking, real-time webhooks, device monitoring (online/offline, battery, SIM status), rate limiting with retry/idempotent handling, and separate admin and customer dashboards with full API documentation. I'd build this with a clean Laravel architecture (queues for message processing, webhook dispatching, and device communication), ensuring the system stays self-hosted and scalable for future multi-language support. I can start right away. Let's discuss further.

@crtvecode

When a project requires a multi-user SaaS with complex integrations and self-hosted architecture, the real issue often lie in making sure data security and smooth user experience throughout. To avoid potential risks like data lost during migration or downtime, I will implement the solution without impacting your existing infrastructure. Phased Approach: Safe staging build: Develop and test the entire system on a private server first. API integration: Implement REST API for SMS functionality and payment gateways. User interface design: Create intuitive dashboards for both admin and customers. Final deployment: Launch the system with minimal disruption to your operations. Could you clarify if you have specific branding assets or design guidelines for the dashboard? Rajavel

@Walkingdreams

With over a decade of navigating complex software development projects similar to SenderX, I am confident that the Walking Dreamz Technologies team is the perfect fit for your project. Our experience lies predominantly in developing MERN web apps, such as dashboards, SaaS platforms, and admin panels - skills that are directly transferrable to Laravel framework. Furthermore, with my profound knowledge in Android and API Development married to your desire of creating a user-friendly SaaS product that empowers businesses by giving them control of their SMS infrastructure sans third-party dependence, we have a winning combination. Your project's documented pillars – multi-tenant management capability, bulk SMS option, REST API for tracking and sending messages, and more – align with our proven competencies. Credibility is key when working on projects involving sensitive data and architectural elements like what you seek. Our history in delivering clean code with predictable delivery ensures that your server and data will be well-handled in the self-hosted structure. Partnering with us means no communication gap as you'll have direct access to me throughout the project – for clear milestones, frequent demos, transparent progress updates... and whatever it takes to make sure your vision is realized effectively.

@Joya1996

A platform like SenderX succeeds or fails on operational reliability — especially device status tracking, queue handling, scheduled SMS, API authentication, and tenant separation. The visible dashboard is only one piece; the real challenge is making sure the sending pipeline behaves correctly when multiple users and multiple phones are active at the same time. I’d focus first on the core Laravel architecture and launch-critical flows before polishing secondary items. I’ve handled custom backend-driven platforms with payment integrations, user roles, API endpoints, logs, and admin controls, so this is the type of work where structured delivery matters. For an SMS SaaS, message history, retries, webhook responses, and subscription enforcement need to be consistent across the whole system. I can also include a quick pass on usability issues in the customer dashboard while working through the main scope. - Is this project for completing an existing script/product, or building the full system around the demo from scratch? - Which SMS states are already supported end-to-end: sent, delivered, failed, scheduled? - Do you want post-launch support for deployment and testing with real devices as well?

@AnumFatima210

Hi, I went through your project details and understand what you're looking to achieve. I'd be interested in working with you on this. Based on the requirements you've shared, I can handle the project from start to completion while keeping the work aligned with your expectations, timeline, and desired outcome. My approach is straightforward: first, I'll make sure the requirements and expected deliverables are clear. Then I'll complete the work in structured stages, share progress along the way, incorporate your feedback, and deliver the final work after everything has been reviewed. Before we begin, I have a couple of questions about your requirements that will help me understand the scope more accurately. Feel free to message me so we can discuss the details and determine the best way to move forward. Best regards, Anum

@b2btechnology20

With over 11+ years of experience in web development, I believe I possess the skills and expertise necessary to effectively build and manage a sophisticated SaaS platform like SenderX. My deep understanding of Laravel, PHP, and web development will empower me to build on the existing framework and enhance SenderX's functionalities, ensuring it remains reliable, scalable, and secure. In addition, my familiarity with multiple languages aligns perfectly with SenderX's multi-language ready feature, guaranteeing ease of use for clients across borders. Moreover, my proficiency in building API architectures will ensure smooth integration with various payment gateways like Stripe, PayPal, Razorpay, Paystack, Flutterwave, Mollie, SSLCommerz & UddoktaPay. This expertise will optimize the subscription process for your customers - from registration and plan selection to prompt and effective payments. My team and I are well-equipped to handle this project requirement while maintaining a self-hosted architecture; providing you complete control over your data. My name is mahesh , let’s get started on excellence!