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I run an established online betting platform and need a reliable way to broadcast promotional offers to my customer base through both WhatsApp and traditional SMS. The core goal is simple: reach thousands of opted-in users quickly, track delivery and engagement, and stay fully compliant with each channel’s policies. Here is what I expect from the finished solution: • A single interface (web panel or integrated API) that lets me upload or sync contact lists, compose messages, and schedule or trigger sends in real time. • Capability to segment recipients so specific promotions go only to targeted groups. • Automatic handling of opt-outs / unsubscribe requests to keep my databases clean and compliant. • Basic analytics—delivery status, open/read indicators on WhatsApp where possible, and click-through tracking for links. • Deployment to my own server or secure cloud environment, with clear documentation so my in-house tech team can maintain it. If an off-the-shelf gateway or third-party service best meets these needs, please recommend it; if a custom script with Twilio, Vonage, 360dialog, or another approved WhatsApp Business API provider is better, outline the architecture. I’m open to whichever approach balances cost, scalability, and long-term control. On delivery I should be able to log in, upload a CSV, write a short promo, hit send, and immediately see the campaign progressing across both channels. Send me a brief plan covering your proposed tech stack, estimated throughput per minute, and any hardware or license requirements so we can move forward quickly.
Project ID: 40470323
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57 freelancers are bidding on average $24 USD/hour for this job

Hi, I've built bulk messaging systems for gaming platforms using Twilio. Your betting site needs reliable broadcast infrastructure—I'll set this up with proper delivery tracking and compliance handling. Message me to discuss. Best Regards, Hasan
$200 USD in 7 days
8.7
8.7

As the Manager, a Full-Stack Developer, SaaS expert, and API Developer with a strong focus on scalable architecture and delivering measurable business growth, I'm confident in my ability to meet your requirements for a Bulk WhatsApp & SMS Solution. My experience in building web interfaces with user-friendly functions aligns with your request for a single interface for scheduling, messaging development, analytics tracking, and automatic handling of opt-out requests. Moreover, I prioritise clean deliverables empowering long-term control which resonates well with your wish for comprehensive documentation. Let's communicate further on throughputs per minute expectations, and I'll provide you with a feasible tech stack plan that balances cost and scalability guaranteeing efficient promotional broadcasts to your thousands of customer base across multiple channels!
$20 USD in 40 days
8.2
8.2

Building a robust, scalable bulk messaging solution with exceptional user experience is well within my skill set and expertise. With over 10 years in full stack development, I have hands-on experience in creating cutting-edge web and API interfaces that can handle complex infrastructures like what you require for your WhatsApp & SMS project. My proficiency in Cloud Computing will ensure the deployment of your system onto your server or any secure cloud environment of your choice. Apart from meeting all your specific requirements like contact lists management, segmenting by promotion, ensuring compliance with opt-outs, providing detailed analytics, I have a track record of delivering quick results without compromising quality. With my skill in Google Analytics, statistics and reporting on campaign performance are assured. Even after completion, I am always available for maintenance and support. So rather than choosing between cost, scalability and long-term control - choose me and get them all. Let’s turn this vision into an efficient reality together!
$15 USD in 40 days
6.4
6.4

Hi, I can build a compliant WhatsApp and SMS campaign system for your opted in customer base with one clean panel to manage contacts, segments, messages, scheduling, opt outs, and analytics. For this project, I would recommend using approved providers such as Twilio, Vonage, or 360dialog for WhatsApp Business API and SMS, with a PHP or Node.js backend, MySQL database, secure admin dashboard, CSV upload, campaign logs, webhook tracking, and unsubscribe handling. The system can support targeted promotions by segment, real time sending, delivery status, WhatsApp read status where supported, link click tracking, and clean reporting so your team can monitor campaign progress immediately after sending. I will structure it for compliance first, using opted in contacts only, template approval where required, rate limits, audit logs, and clear documentation for your in house team. Best, Justin
$50 USD in 40 days
6.4
6.4

With my extensive proficiency in PHP, Software Architecture and Web Development, I am confident I possess the requisite skills to fulfill your Bulk WhatsApp & SMS Solution for your Betting Site project. Over the course of my 6-year career in Full Stack Development, I have consistently delivered scalable and high-performing web and mobile applications for diverse clients - a background that has equipped me with the ability to provide the kind of solution you need; balancing cost, scalability, and long-term control. Not only can I recommend an off-the-shelf gateway or third-party service meeting your needs, but I also have hands-on experience integrating APIs from reputed providers like Twilio, Vonage, and 360dialog - ensuring your solution aligns seamlessly with industry standards. Moreover, as a proficient user of popular tech stacks such as PHP, Laravel, React JS, and Flutter - I can create for you a single interface that allows you to compose personalized messages for specific targeted groups and schedule/promote campaigns with real-time tracking capabilities using CSV files effortlessly.
$15 USD in 2 days
6.1
6.1

Your biggest risk is getting your WhatsApp Business API account suspended mid-campaign if you send promotional content without proper opt-in verification. Meta's compliance team flags betting/gambling accounts aggressively, and one violation locks you out for 90 days minimum. I've seen operators lose $40K in revenue because they treated WhatsApp like SMS. Before I map out the architecture, I need clarity on two things. First - do you already have an approved WhatsApp Business API account, or are we starting from scratch? The approval process for betting platforms takes 3-6 weeks and requires proof of opt-in consent storage. Second - what's your current daily send volume? If you're pushing 50K+ messages per day, we need dedicated short codes and rate limit handling that most Twilio setups don't include by default. Here's the architectural approach: - TWILIO + 360DIALOG HYBRID: Use Twilio for SMS failover and 360dialog for WhatsApp to avoid single-vendor lock-in. This setup lets you route messages intelligently if one channel hits rate limits. - PHP LARAVEL + REDIS QUEUE: Build the web panel in Laravel with Redis-backed job queues to process 500-1000 messages per minute without timeouts. Include automatic retry logic for failed deliveries. - MYSQL SEGMENTATION ENGINE: Design a contact table with opt-in timestamps, channel preferences, and behavioral tags so you can target "users who clicked last promo but didn't convert" in under 2 seconds. - WEBHOOK COMPLIANCE LAYER: Capture all STOP/unsubscribe requests via webhooks and auto-update your database in real time to avoid sending to opted-out numbers. - GOOGLE ANALYTICS UTM TRACKING: Inject unique UTM parameters into every link so you can trace which message drove each deposit in your existing analytics dashboard. I've built similar broadcast systems for 2 iGaming operators in Malta that handle 200K daily messages across 12 markets. The compliance piece is non-negotiable - one mistake and Meta blacklists your entire domain. Let's schedule a 20-minute call to review your current opt-in process and API provider status before we finalize the tech stack.
$18 USD in 30 days
6.3
6.3

I understand you need a compliant WhatsApp + SMS broadcasting solution for your betting platform to send promotions to opted-in users, manage segmentation, track delivery, and handle unsubscribes. • I can start immediately and design a single web panel/API for CSV upload, contact sync, campaign creation, scheduling, and real-time sending. • I will recommend an approved setup using Twilio, Vonage, 360dialog, or WhatsApp Business API based on cost, throughput, and compliance needs. • I will include audience segmentation so promotions can be targeted by user group, status, location, or custom tags. • I will build opt-out/unsubscribe handling to automatically suppress users and keep campaigns policy-compliant. • I will add analytics for SMS delivery, WhatsApp delivery/read status where supported, failed sends, and link click tracking. • I will deploy the solution on your server or secure cloud environment with documentation for your in-house team. • You can expect clear communication, clean implementation, timely delivery, testing, and revisions if needed. Approx. timeline: 5–10 days depending on gateway approval, contact structure, analytics depth, and deployment requirements. Please message me with your preferred gateway, expected sending volume, and current user database format, and I’ll start immediately.
$18 USD in 40 days
5.3
5.3

Hi, this is a great fit for what I like building: one control panel, two channels, clear numbers. I’d propose a small web app (Node or Laravel) with a campaign dashboard where you upload CSVs or sync contacts, segment audiences, compose promos and schedule sends, backed by providers like Twilio/Vonage for SMS and an approved WhatsApp Business API (e.g. 360dialog or Twilio WhatsApp) for WA traffic. Opt outs would be handled automatically via keywords and provider webhooks, updating a central consent table so you stay compliant across both channels. For tracking, I’d log delivery receipts, WhatsApp read events where available, and wrap links with a lightweight click tracker so you can see engagement per campaign and segment. On reasonable hardware (a small VPS) and standard provider limits, you can expect a few thousand messages per minute across both channels, with room to scale by adding workers. I’ll document the stack, env variables and deployment so your in house team can run and extend it confidently.
$20 USD in 40 days
4.5
4.5

Hey — saw your post about needing a bulk WhatsApp & SMS solution for your betting site. Most campaigns like this fail not because of the offer, but because messages get flagged, blocked, or never actually reach the users at scale. Quick question before I suggest an approach: Are you already using a specific provider (like Twilio, Gupshup, 360dialog, etc.), or are you starting from scratch on both WhatsApp and SMS? I’ve set up bulk messaging flows for high-volume, promotion-heavy platforms before, including handling opt-ins, templates, and delivery tracking. If you can share your current setup (or a link/screenshot of what you’re using now), I’ll take a look and tell you what’s realistic for stable, high-deliverability broadcasts.
$15 USD in 7 days
4.1
4.1

Hi, I've built systems that automate promotional messaging for similar platforms, handling thousands of sends and integrating with multiple channels like WhatsApp and SMS. I can set up a streamlined web interface for your needs and ensure compliance with opt-outs and channel policies. Let’s start with a small test task to align before full deployment. Looking forward to discussing your requirements in detail. Best Regards, Ivica
$20 USD in 40 days
4.1
4.1

Hi, We can build this. We have integrated WhatsApp APIs like 360dialog, Twilio, Gupshup, and multiple SMS gateways. A few quick questions: • Which countries are you targeting? • Which SMS provider do you want to use? • Approx message volume per day? • Need full web panel or API only? Since this is a betting category, WhatsApp has strict restrictions on promotional messaging, so the setup depends a lot on compliance and target regions. Let’s discuss on chat and I’ll suggest the best approach.
$20 USD in 40 days
3.0
3.0

Hey I hope you are doing well. I'm interested in this project and believe I'd be a good fit. I'd approach this project by building a NodeJs web app hosted on your server or a VPS. I'd like to talk to you more to know your exact scale (how many SMS/Whatsapp messages are you going to send). If it's a large amount it may warrant contacting sales of Twilio, Vonage, 360Dialog, Sinch to find out who would be the cheaper solution. Knowing what I do now, I'd go with Vonage. Opt outs would be handled by the user replying STOP, then the provider will fire a webhook notifying the server of it. I'll set up webhooks with the SMS provider to track successful delivery of SMS, Whatsapp messages, and to track when users have opened and read the Whatsapp messages. I'd track clicks of promotional links by sending a tracking URL that redirects to the promotional URL. Most SMS providers have a throughput of thousands per minute. I am ready and available to start immedately. Please message me to discuss further if interested. I hope to hear from you. Thanks.
$15 USD in 40 days
2.7
2.7

Hi there, Bulk WhatsApp + SMS with segmentation, scheduling, opt-out handling, and delivery analytics — straightforward architecture, and we can build it cleanly on your own server. Proposed stack: - Backend: PHP + MySQL — campaign management, contact lists, scheduling engine - SMS: Twilio or Vonage — high throughput, delivery receipts, global reach - WhatsApp: 360dialog or Twilio WhatsApp Business API — template-based broadcasts with read indicators - Frontend: Clean web panel — CSV upload, message composer, segment selector, live campaign dashboard What you'll get: - Single interface to manage both channels - Contact segmentation for targeted promo sends - Auto opt-out/unsubscribe handling to keep lists compliant - Delivery status, read receipts (WhatsApp), and click tracking - Scheduled and real-time send capability - Full deployment to your server with documented codebase for your team One note: WhatsApp Business API has content restrictions on gambling/betting promotions in certain regions — we'll advise on compliant message templates during setup to keep your account in good standing. I will personally review the panel and run test campaigns before handover. Quick question — do you already have a WhatsApp Business API provider account (360dialog, Twilio, etc.), or do you need help setting that up from scratch?
$15 USD in 40 days
2.5
2.5

Hi, I’ve carefully reviewed your project for a bulk WhatsApp and SMS solution tailored for your betting platform, and I’m writing this bid myself with full confidence in delivering exactly what you need. The demand for real-time, scalable, and compliant messaging is clear, and I’m ready to provide a streamlined solution that fits. My experience includes building messaging platforms using WhatsApp Business API through providers like Twilio and 360dialog, integrating SMS gateways, and creating user-friendly web panels with contact management, segmentation, and analytics. I will design a simple-to-use interface, ensuring message scheduling, opt-out handling, and comprehensive delivery and engagement tracking while keeping your data secure. The next step is to discuss your preferred hosting environment and exact throughput needs to finalize the architecture and timeline. Expect initial delivery within a week following agreement. Do you currently have a preferred WhatsApp Business API provider, or are you open to recommendations based on cost and scalability? What is the maximum number of messages you anticipate sending per minute? Best regards,
$25 USD in 20 days
2.2
2.2

I will build a centralized messaging platform using PHP Laravel + MySQL with integration to approved providers such as Twilio, 360dialog, or Vonage for WhatsApp Business API and SMS delivery. Admin users can log in to a secure web dashboard to upload CSV contact lists, create campaigns, segment users by country/VIP/activity level, schedule broadcasts, and monitor delivery in real time. The system will automatically process opt-outs/unsubscribe requests and maintain suppression lists to stay compliant with WhatsApp Business and SMS regulations. WhatsApp features will include delivered/read tracking, template approval management, media support, and click tracking for promotional links. SMS campaigns will include delivery reports and failed-number filtering. Architecture: • Frontend: Laravel Blade or React dashboard • Backend: PHP Laravel REST API • Database: MySQL • Queue System: Redis + Laravel Queue for high-speed sending • Hosting: Ubuntu VPS/AWS/DigitalOcean Estimated throughput: • SMS: 50–200 messages/sec depending on provider • WhatsApp: based on Meta-approved messaging tier limits Security includes API authentication, encrypted credentials, rate limiting, logging, and role-based admin access.
$20 USD in 60 days
2.4
2.4

Hello, and thanks for outlining a clear path to a scalable WhatsApp and SMS broadcast solution for your betting platform. I’ll design a unified interface and robust backend that lets you upload or sync CSV contact lists, craft promotions, and schedule or trigger sends in real time, with precise segmentation to target specific groups. The architecture supports opt-out handling, ensuring full compliance with both WhatsApp Business API policies and SMS regulations, with automated unsubscribe processing and suppression lists. On the tech front, I propose a modular stack: a web panel built with PHP and a secure API layer, backed by MySQL for contacts and campaigns, and a scalable message queue (RabbitMQ or similar) to handle throughput. For delivery, we’ll compare a self-hosted gateway vs. a managed provider (Twilio, 360dialog, Vonage, or equivalent) and recommend the option that minimizes latency while maximizing control and cost efficiency. The solution will expose a clean API and a deployable package for your server or cloud environment, with comprehensive docs for your in-house team. Key features include real-time campaign status, delivery analytics, read/open indicators where supported, and click-through tracking with link tagging. A ready-to-run plan will include suggested tech stack, per-minute throughput targets, and any license or hardware requirements, plus a migration path from your current processes. Best regards,
$30 USD in 1 day
2.3
2.3

Hello, I can help you efficiently implement a bulk WhatsApp and SMS solution for your betting site. Approach: • A simple and straightforward process to broadcast promotions effectively. • Ensuring all features are properly integrated and organized. Technologies: • PHP, Twilio, API Development, MySQL, Cloud Computing Extras: • Clear documentation for your in-house team to maintain the system. • Basic analytics for tracking delivery status and engagement metrics. Timeline: • 5–7 days Goal: To deliver a reliable, easy-to-use broadcasting solution that meets your needs—hassle-free. Ready to get started. Agustin
$20 USD in 40 days
2.4
2.4

Hi, I’ve built systems that handle mass SMS and WhatsApp broadcasts for large user bases, ensuring compliance and tracking engagement. I’ve developed a similar solution for an online platform that streamlined message delivery and analytics. We can start with a small test to ensure the system meets your needs before scaling. If you’re open to a custom script, I can use Twilio or Vonage to handle the delivery, with a focus on simplicity and ease of use. Let’s discuss how we can get this up and running quickly for you. Best Regards, Rosmar
$20 USD in 40 days
1.8
1.8

Hello! I've built a similar solution for an online marketing platform that improved their promotional reach by over 40% while maintaining compliance across multiple channels. I can share the implementation details in chat. My approach would be to create a web panel that integrates with Twilio and WhatsApp Business API, allowing for seamless message scheduling and recipient segmentation. I’ll ensure automatic handling of opt-outs and provide basic analytics for engagement tracking. What’s your current strategy for segmenting your audience, and how frequently do you plan to send these promotions? If you’re open, I can share the similar build and we can see if it fits.
$20 USD in 40 days
1.4
1.4

Most freelancers will focus on features, but the real challenge here lies in compliance and scalability. Your biggest risk probably isn’t development—it's ensuring seamless delivery across WhatsApp and SMS while staying within regulatory boundaries. To achieve this, I propose a centralized platform for contact management, custom segment targeting, and robust opt-out handling. Leveraging Twilio's API for SMS and WhatsApp Business API for chat, we'll ensure reliable delivery and detailed analytics. Our tech stack includes Python for backend logic, MySQL for data management, and Vue.js for a responsive frontend. With a throughput of 500 messages per minute, we guarantee rapid, efficient campaigns. Let's schedule a call to discuss your requirements further.
$18 USD in 7 days
1.6
1.6

Kathmandu, Nepal
Member since May 26, 2026
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