
Closed
Posted
Paid on delivery
The task is to broadcast a one-time promotional blast for my mobile app through SMS. I already hold a clean, opt-in list of phone numbers; all contacts are in CSV format and ready to upload. The message copy is finalized as text that includes tracked image links to our landing pages, so URL-shortening and proper encoding for handset compatibility will be important. What I need carried out: • Upload the list to your preferred gateway or platform. • Send the full campaign in a single window (or clearly defined batches if throttling is required). • Provide delivery and failure reports so I can reconcile totals and gauge click-through. Any reputable bulk-SMS tool is fine—Twilio, Nexmo, MessageBird, or a comparable carrier-grade gateway—so long as delivery receipts are accessible. Please keep sender ID consistent and preserve link integrity in the body of each text. Once I verify the delivery report and link formatting, the project is complete.
Project ID: 40652469
35 proposals
Remote project
Active 5 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
35 freelancers are bidding on average ₹6,423 INR for this job

As a full-stack software development team with extensive experience in mobile app development, we are more than qualified to handle your bulk SMS campaign. Our breadth of expertise in PHP, Mobile App Development, and Software Architecture guarantees the secure handling of your opt-in list and ensures efficient delivery of your promotional blast. Over our successful years in the industry, we've built scalable and data-driven web applications for various platforms. This particular project aligns perfectly with our skillset to deliver a productive bulk SMS campaign for you, leveraging SMS gateways such as Twilio, Nexmo and MessageBird. We understand the importance of maintaining link integrity in the body of each text message, even when dealing with large volumes and have the capacity to provide comprehensive delivery and failure reports for your analysis. Rest assured, we prioritize communication at every stage ensuring that we understand not just your technical needs but also your business goals; this enables us to deliver solutions that are tailored exclusively to meet those objectives successfully. We have a strong track record of on-time delivery with clear lines of communication in case any issues arise. Given our commitment to client satisfaction and depth of technical knowledge within your project's domain, I'm confident that we're the team you need for a job well done.
₹11,000 INR in 3 days
6.4
6.4

I can make a plugin for this with a dashboard so you know sent and failed to send numbers, also a demo send to your number for testing, I have worked with twilio, so if your open we can use twilio,
₹7,000 INR in 7 days
6.3
6.3

I can efficiently handle the bulk SMS campaign by uploading your CSV list to a reliable platform like Twilio. First, I will ensure that the URL-shortening and encoding are correctly set up for optimal delivery. Once the campaign is sent, I will provide you with detailed delivery and failure reports for your review. Based in Toronto, I work quickly and remain available for any follow-up questions.
₹1,500 INR in 3 days
6.6
6.6

Hi there I can help you set up the bulk SMS campaign for promoting your app and make sure the messages are delivered reliably to the right audience My approach 1 SMS Setup Twilio or your preferred SMS provider with sender configuration 2 Bulk Messaging Upload and manage recipient lists and send promotional messages in batches 3 Personalisation Add customer names links or other dynamic content where required 4 Tracking Monitor delivery status failed messages clicks and campaign performance 5 Automation Set up scheduled campaigns and automatic follow ups if needed 6 Compliance Handle opt out and messaging requirements for the target countries I have worked with SMS APIs and third party integrations for automated messaging and notification systems Quick questions to get started 1 Which countries are you planning to target 2 Do you already have a Twilio account and verified sender 3 Approximately how many SMS messages need to be sent 4 Do you already have the recipient list and message content 5 Do you need a simple one time campaign or a complete reusable SMS system Once I have these details I can set up the campaign and start testing the delivery flow Let me know and we can jump on a quick call to finalize the setup Thanks
₹12,000 INR in 7 days
5.8
5.8

With my extensive background in mobile app development, data management, and a proven track record of successful PHP projects, I am confident that I am the ideal candidate to fulfill your bulk SMS promotion needs. I have ample experience working with various reputable bulk SMS tools such as Twilio, Nexmo, and MessageBird and can skillfully navigate their unique features to optimize delivery receipts and maintain link integrity. Creating clean, scalable systems is my core expertise. Utilizing my knowledge in AI automation and system architecture, I can guarantee a streamlined campaign where your CSV contact list will be effortlessly uploaded to the platform of your choice without any data loss. Moreover, my meticulous approach ensures each text is encoded for optimal handset compatibility. I wholly understand the significance of accurate reporting for campaign assessment. In that regard, you can rely on me to provide you with comprehensive delivery and failure reports so you can not only appreciate overall efficacy but also gauge click-through rates effectively. My commitment to long-term client relationships means I will ensure the thorough completion of your project, validating the delivery report aligns with your message copy and link formatting before considering it finalized.
₹1,500 INR in 5 days
5.2
5.2

As a mobile app developer with over 8 years of experience, there's no doubt that I'm the perfect choice to help you with your bulk SMS campaign. Not only do I have deep knowledge of the industry, having worked on projects ranging from healthcare and e-commerce to fintech and logistics, but I also have excellent working skills with APIs and backends - making me fluent in systems like Twilio. My PHP skills add an extra edge to my expertise in mobile app development and further support my suitability for this project. Moreover, preserving the link integrity is crucial as it ensures optimal user experience while enhancing call-to-action response rates. Thanks to my experience working with platforms like Twilio, Nexmo, and MessageBird, I know exactly how to encode URLs appropriately and ensure handset compatibility. This way you can be confident that your message copies will reach your recipients effectively without any loss in their formatting or content. Additionally, the comprehensive delivery and failure reports that I'll provide are an instrumental tool in evaluating the success rate of any campaign. My commitment to timely deliveries and clear communication will ensure you have all the necessary information needed to analyze your promotions accurately, gauge click-throughs and reconcile totals. Choose me for this project for end-to-end management birthing high-quality scalable results that will surely give your app a powerful promotional boost!
₹10,000 INR in 5 days
5.0
5.0

With over a decade of experience in full stack development and software architecture, I am confident that I can provide you with a seamless and effective bulk SMS campaign to boost your app's reach. Familiarity with popular gateways such as Twilio, Nexmo, and MessageBird ensures I can navigate the platform that suits your needs best while providing you easy access to delivery receipts. Having specialized knowledge in data management lends itself perfectly to ensuring that both uploading of the CSV file and formatting of the message body is completed without any discrepancies. Moreover, my expertise in mobile app development gives me an edge when it comes to URL-shortening and proper encoding to maintain link integrity across different handsets. I prioritize providing clients with comprehensive solutions; thus, offering full delivery and failure reports for your records is something I'm happy to include. Whether you want the campaign sent out in one go or prefer batches at intervals, I'll ensure smooth execution. At the core, my aim is always to deliver long-terhch aligns perfectly with what yoroject. By choosing me, you're not investing in a one-off campaign, but rather a freelancer who can support all aspects of your app development needs from bug fixes to optimization. Let's take your app promotion to new heights with my proficiency and passion for creating high-performance applications for businesses like yours!
₹7,000 INR in 7 days
4.7
4.7

Since your list is already opt-in and the campaign is one-time, the main work is making sure the send is compliant, properly formatted, and easy to reconcile afterward. I would first validate and normalize the CSV, remove malformed or duplicate numbers, and confirm country codes before importing anything. For delivery, I would use a reputable provider such as Twilio, Vonage, or MessageBird depending on the destination countries and sender-ID requirements. Before the full broadcast, I would run a small test batch across different handset types to verify URL formatting, encoding, sender ID, and link tracking. Once approved, the remaining contacts can be sent in controlled batches if carrier throttling requires it. I would also configure delivery-status callbacks so the final report clearly shows delivered, failed, rejected, and pending messages, along with click-tracking data where supported. No contact data would be reused outside this campaign, and I would keep the send aligned with applicable opt-out and messaging requirements. Which countries are the recipients located in, and approximately how many phone numbers are in the CSV?
₹7,000 INR in 7 days
4.2
4.2

Hi, Thanks for sharing your project. It aligns well with work I’ve successfully completed for other clients, and I’m confident I can deliver a high-quality solution tailored to your requirements. Before providing an accurate timeline, scope, and budget, I’d like to clarify a few key details to ensure we're aligned from the start. Freelancer’s proposal character limit makes it difficult to cover everything thoroughly here. If you're available, let's connect via chat. I can walk you through similar projects I've completed, discuss the best approach for your specific requirements, and answer any questions you may have. Once I understand your expectations, I'll provide a clear execution plan with realistic timelines and pricing. I’m ready to get started as soon as we finalize the details and look forward to working with you. Best regards, Mayank Sahu
₹7,000 INR in 7 days
4.0
4.0

Hi, I've looked through your project and understand you need a controlled, high-delivery bulk SMS marketing campaign executed across an opt-in CSV contact database while preserving custom URL link routing tracking protocols. I specialize in backend communication logic and API integrations with enterprise gateways like Twilio, Vonage, and MessageBird, focusing on structuring clean programmatic loops that handle GSM-7 handset encoding validation and adaptive carrier rate-throttling profiles. My approach ensures your custom tracking links retain complete structural integrity across global handsets while producing verified, structured webhook delivery logs for your final reconciliation matrix. Let's connect in the chat for the further process.
₹7,000 INR in 4 days
2.6
2.6

A clean opt-in list only gets you to send time. This campaign lives or dies on link encoding, sender ID consistency, and DLT template compliance on the promotional route. - Social Media Monitoring Automation: Built a Reddit-to-Telegram monitoring workflow that tracks keywords and pushes alerts in real time - workflow documentation available on request. The retry and rate-limit handling from that carries into SMS batch throttling and DLT delivery receipts. What I'll handle: - Upload the CSV to a carrier-grade gateway, deduplicate numbers, then split the send into throttle-safe batches if the count is large. - Keep the sender ID fixed and the tracked URLs encoded exactly once so link integrity survives handset rendering and click tracking. - Pull delivery/failure receipts and produce a reconciliation report you can compare against CSV totals. Test send first, then the broadcast, then report. I won't run the full blast before one message reaches your handset with the link rendered correctly. Send over the CSV count and DLT registration status, and I'll confirm the gateway route plus a test message before the full campaign. Best regards, Mohammad Juned
₹5,900 INR in 1 day
1.9
1.9

Hello, I came across your project on Freelancer and I’d love to help. I’m an experienced SMS marketing specialist with a proven track record of delivering high-quality work that meets client expectations. I have over 5 years of experience in bulk SMS campaigns. I’ve successfully completed similar projects, such as promoting mobile apps and products, ensuring optimal delivery rates and compliance with regulations. I focus on clear communication and timely delivery. For your project, I can: * Upload your CSV list to a reputable bulk-SMS platform. * Execute the campaign efficiently, adhering to throttling requirements if necessary. * Provide comprehensive delivery and failure reports for your review. I’d be happy to discuss your project in more detail and share relevant samples of my past work. Looking forward to collaborating with you. Regards, Shaun Kelly
₹6,500 INR in 7 days
1.4
1.4

As someone who specializes in full-stack development and software architecture, I believe I'm the ideal candidate to execute your bulk SMS campaign for your mobile app. I have experience successfully leveraging AI-powered marketing strategies to maximize click-through rates and boost conversions. Not only can I upload your CSV contact list effortlessly, but I'll ensure the process is smooth by applying my backend engineering skills. Being able to provide clean and scalable architecture along with secure and production-ready deployments, your SMS campaign will be given the professional touch that generates reliable results. Moreover, I guarantee you high-performance applications integrated where they create real business value, such as this promotional blast. By working with just one technical partner like me, you avoid the arduous task of coordinating multiple teams. My vast skill set includes handling APIs integrations like Twilio, Nexmo or MessageBird which will definitely come in handy while choosing a reputable bulk-SMS tool for your project. But my value extends beyond just completing this one-time task flawlessly: I want to establish a long-term relationship with you. From my end, this would involve offering continuous improvements even after the initial work is done and ensuring consistent communication as we grow your mobile app brand further. Let me put my scalability, reliability and maintenance skills to work for you in making your app soar!
₹7,000 INR in 7 days
1.6
1.6

Hi, I can build and execute the one-time bulk SMS campaign using a reliable SMS gateway such as Twilio, MessageBird, or another suitable provider. I have 7+ years of backend development experience with PHP, JavaScript, REST APIs, database/data handling and third-party API integrations. Your requirement is well aligned with this experience. I can handle: * CSV upload and phone-number validation * Importing and processing the opt-in recipient list * SMS campaign configuration * Sender ID configuration where supported by the selected provider * Personalized message handling * UTM/link tracking parameters * Batch or scheduled sending to respect provider/rate limits * Delivery receipts and status tracking * Failed/undelivered message reporting * Duplicate-number handling where required * Campaign logs and final delivery report * Secure handling of the uploaded recipient data Before sending the campaign, I would validate the recipient data and test the complete flow with a small batch first. Once the delivery and formatting are confirmed, the remaining campaign can be processed safely. I can work with your preferred SMS provider or help configure a suitable carrier-grade gateway based on the required delivery receipts and sender-ID support. I’m available to start immediately and can complete the campaign within 5–7 days. Regards, Tyagraj
₹7,000 INR in 7 days
2.0
2.0

Hi, I can handle the full one-time opt-in SMS campaign from CSV import through delivery reporting, with careful attention to sender consistency, link formatting, and carrier compatibility. My approach: Validate and clean the CSV before upload Configure the campaign in Twilio, Vonage, MessageBird, or your existing SMS provider Preserve and test tracked URLs/short links before launch Ensure proper SMS encoding and message segmentation Send in a controlled window or compliant batches if carrier throttling applies Monitor delivery receipts, failures, and carrier responses Export a final report showing sent, delivered, failed, and pending totals Help reconcile link/click tracking with your landing-page analytics I’ll also verify opt-in/compliance requirements before sending so the campaign is not disrupted by avoidable carrier filtering. I can start immediately once I receive the CSV, final message copy, destination countries, and gateway access. Quick question: approximately how many contacts are in the list, and which country/countries are the recipients located in?
₹7,000 INR in 7 days
0.0
0.0

Hi, I can handle your one-time bulk SMS campaign end-to-end using a reliable gateway such as Twilio. I’ll securely import the opt-in CSV, preserve sender ID and link formatting, handle encoding/batching if required, and provide delivery/failure reports for reconciliation. I can start immediately and ensure the campaign is tested before the full send.
₹7,000 INR in 7 days
0.0
0.0

Hi, You need a one time promotional SMS campaign sent to your existing opt in list with consistent sender ID, reliable delivery, and intact tracked links. I can handle the CSV upload, campaign setup, encoding, batching if required, and full delivery testing. The campaign can be configured through Twilio or another suitable SMS gateway with delivery receipts and failure reporting so you can reconcile the final results and track performance. Once I review the CSV format, message copy, sender requirements, and target countries, I can confirm the setup and begin immediately. Best regards, Akif S
₹5,000 INR in 5 days
0.0
0.0

Carrier throttling can cause your one-time blast to hit rate limits and drop messages. I'll split the CSV into timed batches that respect each provider's per-second cap while keeping the sender ID unchanged. The message will be encoded as GSM-7 with URL-shortening that preserves the tracking pixel, so every handset sees a clickable link. Many bulk-SMS scripts ignore delivery receipt callbacks and end up with incomplete reports. I'll set up a PHP webhook that stores Twilio status callbacks in a MySQL table, giving you a real-time view of successes and failures. Ready to start immediately and have the first batch out within minutes.
₹10,000 INR in 4 days
0.0
0.0

Hi, I can execute this one-time SMS campaign through a reputable gateway using an account owned by your business, ensuring you retain control of billing, sender registration, data and reports. My workflow: • Verify documented opt-in and apply existing suppression/opt-out lists • Import, deduplicate and validate numbers in E.164 format • Preflight GSM-7/UCS-2 encoding and message-segment count • Configure a consistent approved sender ID • Preserve landing-page parameters using a branded short domain and UTM tracking • Send a small handset test across major carriers before launch • Schedule one controlled window or throttle batches to match carrier limits • Capture delivery callbacks, failures, error codes and click events • Supply final CSV reports reconciling submitted, delivered, failed and clicked totals • Securely delete the contact export after project completion SMS cannot embed an image directly, so I’ll verify that each tracked image/landing-page URL renders correctly when opened from the message. Please confirm the destination countries, contact count, gateway account availability, sender ID status, message copy, opt-out method and evidence of consent. I can proceed once compliance and the test message are approved.
₹7,000 INR in 7 days
0.0
0.0

Hi, I can help you execute this SMS campaign using a reliable bulk-SMS platform and ensure the opt-in CSV is handled carefully throughout the process. 1. I’ll import and validate the CSV, preserve the recipient data, and configure a consistent sender ID with the appropriate SMS encoding and link formatting. 2. I’ll send the campaign in a controlled window/batches if the gateway requires throttling, while monitoring delivery status and failures through delivery receipts. 3. I’ll provide the final delivery/failure report so you can reconcile sent, delivered, and failed numbers and verify that the tracked links remain intact. I’m comfortable working with SMS/API-based workflows and can use a suitable carrier-grade provider based on your target countries, volume, and sender requirements. I’ll also make sure the campaign is handled according to the provider’s messaging and opt-in requirements. Question 1: Which countries are the recipients located in, and approximately how many numbers are in the CSV? Question 2: Do you already have a preferred SMS gateway/account, or should I recommend the most suitable option for your campaign? I’m available to start immediately and can keep the execution and reporting straightforward.
₹1,500 INR in 7 days
0.0
0.0

sikar, India
Payment method verified
Member since Mar 11, 2018
₹600-1500 INR
₹12500-37500 INR
₹600-1500 INR
₹600-1500 INR
₹600-1500 INR
₹12500-37500 INR
₹1500-12500 INR
₹750-1250 INR / hour
$250-750 USD
€12-18 EUR / hour
₹600-1500 INR
$30-250 CAD
min ₹2500 INR / hour
₹1500-12500 INR
€750-1500 EUR
₹600-1500 INR
$1500-3000 USD
$250-750 USD
₹1500-12500 INR
₹600-1500 INR
₹1000-5000 INR
$8-15 USD / hour
₹100-400 INR / hour
₹130000-150000 INR
$2-8 USD / hour