
Closed
Posted
Paid on delivery
Looking for a Skilled Developer / Team to Build a Secure Messaging Platform (Telegram-Style) ## Project Title **Development of a Real-Time Messaging Application with Phone Number & 5-Digit OTP Authentication** --- ## Project Overview I am looking for an experienced developer (or development team) to build a **modern, secure, and scalable messaging platform** similar to **Telegram**. The application should support real-time messaging, group chats, media sharing, and a secure authentication system using **phone number verification with a 5-digit confirmation code (OTP)**. Additionally, the platform must include an **Admin Panel** where the administrator can view all phone numbers along with the confirmation codes entered by users during the login/registration process. --- ## Scope of Work The freelancer will be responsible for the following: ### 1. **User Authentication (Phone Number Only)** - Registration and login using **phone number only** (no email required). - Generate and send a **5-digit confirmation code (OTP)** to the user's phone via SMS. - User enters the received code to verify and access the account. - Handle OTP expiration, retries, and rate-limiting for security. - Session management using JWT or equivalent. ### 2. **Admin Panel (Important Requirement)** - A secure admin dashboard accessible only to the administrator. - The admin must be able to **view all phone numbers and the confirmation codes entered by users** during login/registration attempts. - Display details including: - Phone number - Entered confirmation code(s) - Date & time of attempt - Status (success / failed / pending) - Search, filter, and export functionality (CSV/Excel) is preferred. - User management (view, ban, suspend, delete). ### 3. **Messaging Features** - One-to-one private messaging. - Group chats with admin controls. - Real-time message delivery using WebSocket / Socket.IO. - Message status indicators (sent, delivered, read). - Typing indicators and online/offline presence. - Support for text, emojis, images, videos, voice notes, and documents. - Message editing, deletion, and forwarding. ### 4. **User Profile** - Profile setup (name, photo, bio, status). - Privacy settings (last seen, profile visibility, etc.). ### 5. **Notifications** - Push notifications for new messages and group activity. - Notification preferences for users. ### 6. **Security** - Secure data transmission (TLS/SSL). - Encrypted storage of sensitive data. - Protection against brute-force attacks and abuse. --- ## Required Skills & Experience - Proven experience in building **real-time chat or messaging applications**. - Strong knowledge of **WebSocket / [login to view URL]** or similar real-time technologies. - Experience integrating **SMS gateways** (Twilio, Vonage, Nexmo, or similar) for OTP delivery. - Experience building **admin dashboards** with detailed reporting. - Proficiency in: - **Frontend:** React.js / [login to view URL] (Web), Flutter or React Native (Mobile) - **Backend:** Node.js (Express / NestJS), Django, or FastAPI - **Database:** PostgreSQL / MongoDB - **Caching:** Redis - **Cloud Storage:** AWS S3 / Firebase - Familiarity with **secure coding practices** and **scalable architecture**. - Experience deploying applications on AWS, GCP, or Azure. --- ## Deliverables - Fully functional **web and mobile applications** (iOS & Android). - Secure backend with phone number + OTP authentication. - **Admin dashboard** with full visibility of phone numbers and entered confirmation codes. - Source code with proper documentation. - Deployment on production servers. - Post-launch support and bug fixes (duration to be discussed). --- ## Project Timeline - **Estimated Duration:** [e.g., 8–12 weeks] (open to discussion based on freelancer's proposal) - Milestone-based delivery is preferred. --- ## Budget - **Budget:** Open / To be discussed based on experience and proposal. - Please provide a detailed quote with breakdown by milestones. --- ## How to Apply Interested freelancers should submit the following: 1. A brief introduction and relevant experience. 2. **Portfolio or links** to previous chat/messaging or real-time projects. 3. Suggested **tech stack** for this project. 4. Estimated **timeline and budget**. 5. Any **questions or suggestions** regarding the project scope. --- ## Preferred Qualifications - Previous experience building apps similar to **Telegram, WhatsApp, or Signal**. - Experience building **admin panels with detailed user activity logs**. - Ability to communicate clearly and provide regular progress updates. - Availability for long-term collaboration (for future updates and features). --- ### Apply Now If you have the skills and experience to bring this project to life, I'd love to hear from you. Please send your proposal with relevant work samples and your approach to building this platform. **Serious applicants only. Looking forward to working with a reliable and talented professional!**
Project ID: 40420332
207 proposals
Remote project
Active 5 hours ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
207 freelancers are bidding on average $503 USD for this job

Hi, You're building a real-time messaging platform that needs rock-solid security and smooth UX—that's a Node.js + React + PostgreSQL stack we've shipped before. Quick question: are you prioritizing end-to-end encryption from day one, or rolling it in post-launch? Let's talk details. Best Regards, Hasan
$250 USD in 21 days
8.7
8.7

Hey, I will build your real-time messaging platform — phone + OTP authentication, WebSocket-powered chat (private and group), media sharing, and a full admin panel showing all phone numbers, entered codes, timestamps, and attempt statuses. For the admin panel, I will store every OTP entry as a separate log record rather than overwriting on retry — this gives you a complete audit trail of all verification attempts per user, with search, filtering, and CSV export built in. Redis will handle OTP expiration and rate-limiting to prevent brute-force abuse. Questions: 1) Which SMS gateway do you prefer — Twilio, Vonage, or another provider? 2) For mobile, do you need native iOS and Android apps, or is a cross-platform approach (Flutter/React Native) acceptable? Looking forward to potentially working together. Thanks, Kamran
$280 USD in 10 days
8.5
8.5

Hello, Experienced Flutter developer here. I can deliver a fast, responsive, and user-friendly mobile app with proper backend/API integration. ✔ Clean code ✔ On-time delivery ✔ Long-term support Ready to start immediately. Let’s discuss your project.
$550 USD in 10 days
7.8
7.8

Hello, I can provide you Informational Blog Website at a competitive cost. I have experience developing multiple websites and focus on creating clean, responsive, and user-friendly designs that meet client needs. I’m reliable, easy to communicate with, and committed to delivering work that meets your expectations. I’d be happy to discuss your project and get started right away.
$250 USD in 3 days
7.3
7.3

Hello I understand your project and your need for a secure, scalable messaging platform with OTP authentication and a robust admin panel. With 6+ years of experience, we build real-time chat systems using modern stacks like React, Node, and Firebase, ensuring smooth performance and strong security. Our R&D-driven approach guarantees efficient architecture, JWT sessions, and reliable integrations. We also provide ongoing support post-launch. Let’s connect and build your platform the right way!
$250 USD in 7 days
7.2
7.2

As a seasoned developer with over 8 years of experience, my full-stack expertise aligns perfectly with your project. I have built several real-time chat applications from scratch and successfully implemented phone number-based authentication using SMS gateways such as Twilio, Vonage, and Nexmo - which would be a key feature in your platform. What sets me apart is my dedicated commitment to quality, fast delivery, and long-term support. I understand that launching an application is just the beginning; therefore, provided ample post-launch support I ensure your project's continual success. With me on board, you can rest assured that your vision will be brought to life with cutting-edge security measures, scalable architecture, and a rich user experience. Let's connect soon to discuss timelines and budget!
$250 USD in 7 days
7.2
7.2

Hi there, I’ll build the full Telegram-style platform — Flutter iOS and Android apps, ReactJS web, Node.js backend with WebSocket real-time messaging, phone OTP authentication via Twilio, group chats, media sharing, and admin dashboard with user management and login attempt logs. Happy to jump on a quick call to align on this before we start. Warm Regards, Khalil U.
$500 USD in 1 day
6.8
6.8

As an expert in Shopify, WordPress, and Web Development Technologies, I am excited to build your secure messaging platform. I possess extensive experience in real-time applications, SMS integrations, and admin dashboards. I’m willing to start RIGHT AWAY to turn your vision into reality. Regards, Pooja
$500 USD in 3 days
7.1
7.1

Hello, With over 4 years of experience in Website Design, React.js, Web Development, and Node.js, I am confident in delivering high-quality solutions tailored to your needs. I have thoroughly reviewed your project requirements for developing a real-time messaging platform similar to Telegram with phone number and OTP authentication. I understand the importance of creating a secure, scalable, and user-friendly messaging application. Leveraging my expertise in PHP, Website Design, HTML, Node.js, PostgreSQL, React.js, and Web Development, I am well-equipped to meet your expectations. Let's discuss further details in the chat to align on the project scope, ensuring a successful outcome. Looking forward to connecting and collaborating. Regards, Taimoor from Pixels Soft Feel free to connect in the chat for further discussion. Best regards.
$500 USD in 7 days
6.8
6.8

As an accomplished Full Stack Developer with over a decade of experience in building secure and scalable solutions, I am well-equipped to take on the project of developing your real-time messaging application, similar to Telegram. I have a proven track record in creating chat applications and integrating SMS gateways for OTP delivery, which aligns perfectly with your project requirements. Additionally, my expertise in React.js, Node.js, and WebSocket technologies make me primed to handle the interactive nature of the application. What sets me apart is my ability to deliver not just functional websites or apps, but well-rounded solutions tailored specifically to meet my clients' needs. The creation of user-friendly, secure authentication systems and detailed admin dashboards like you've described is something I am familiar with; elements crucial for a messaging platform's success. Moreover, I prioritize delivering results that go beyond just the project completion by providing comprehensive documentation and post-launch support. If you are ready to see your vision transformed into reality by a reliable professional who values communication and fast delivery, then I believe we would be a great match! Let's connect and discuss your project further!
$450 USD in 7 days
6.5
6.5

Building a secure messaging platform with real-time features and OTP authentication is tough when users expect Telegram-level speed and privacy. Juggling instant message delivery, reliable phone-only logins, and a detailed admin panel can feel overwhelming, especially when you need to track every login attempt and code for security. You can expect a modern messaging app that just works, with seamless phone number sign up and an admin dashboard that shows every code and attempt in real time. First, I’ll set up robust phone number authentication with 5-digit OTPs and full tracking. Next, I’ll build the real-time chat system for both private and group conversations with rich media support. Finally, I’ll create the admin panel for live visibility into all user actions and codes, complete with export and user management. Does this approach cover your biggest concerns, or is there a feature you want to prioritize?
$512 USD in 7 days
6.3
6.3

Hello Dear! Greetings from Toriqul Global Solutions! We are a reliable and experienced web design & development company led by Engineer Toriqul Islam (B.Sc. in CSE, RUET), with over 10 years of proven industry experience delivering quality digital solutions. At Toriqul Global Solutions, we build modern, user-friendly, high-performance websites focused on simplicity, elegance, and functionality to boost engagement and business growth. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. AngularJS 7. React JS 8. Node.js 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .NET 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB and more skills What will you get? • Responsive design on All Devices •Reusable components •Clean code •Timely delivery tested •Clear communication We would be honored to discuss your project requirements and help bring your ideas to life. Thank you for your time and consideration. Warm Regards, Toriqul Global Solutions
$250 USD in 6 days
6.0
6.0

Hello, I came across your Informational Blog Website Build and I am very interested in working with you. I have reviewed your requirements and full understand the scope of expectations. I specialize in PHP, Website Design, Graphic Design, Django, HTML, Node.js, PostgreSQL, React.js, Web Development, FastAPI, and have successfully delivered similar projects before. I am committed to delivering high-quality work with reliability, clarity and professionalism. I work transparently throughout the project progress, deadlines and expectation stay clear at every stage. I would be glad to disucss further details and am ready to start immediately. Looking forward to hearing from you. Regards. Anum
$250 USD in 4 days
5.6
5.6

Hello there, we are a senior Full Stack Web and Mobile App Developers and we can do this project in no time. Thanks Ashish Kumar.
$1,550 USD in 28 days
5.8
5.8

Hello, I can build a secure, real-time messaging platform similar to Telegram with a clean and scalable architecture. The system will include phone number login with 5-digit OTP verification via SMS, real-time one-to-one and group chat, media sharing, and online/offline status updates. I will also develop a secure admin panel where you can view user phone numbers and login attempts with OTP codes, along with search and export options. The platform will be built using modern technologies (such as Node.js with WebSockets and React or React Native) to ensure speed, security, and future scalability. The final product will be fully tested, well-documented, and deployment-ready. Key Deliverables: • Real-time chat app (web + mobile) • Phone login with OTP verification (SMS) • One-to-one and group messaging • Media sharing (images, videos, files) • Admin dashboard (users + OTP logs) • Secure backend with WebSocket support • Scalable architecture + documentation • Deployment assistance • One revision round after delivery Let’s collaborate and connect to discuss further. Best Regards, Abhijeet
$400 USD in 8 days
6.8
6.8

Hi, I have thoroughly reviewed your project to build a secure, Telegram-style messaging platform with real-time chat, phone number OTP authentication, and a comprehensive admin panel. With extensive experience developing real-time chat apps using WebSocket and integrating SMS gateways like Twilio for OTP verification, I am confident I can deliver a robust, scalable solution tailored to your needs. I will implement secure phone number authentication with 5-digit OTP, manage sessions using JWT, and build an intuitive admin dashboard that logs phone numbers, confirmation codes, and login attempt statuses with powerful search and export functions. Your app will support rich media messaging, group chats with admin controls, and user privacy settings, coupled with strong security best practices including encrypted data transmission and protection against brute force attacks. I suggest utilizing React.js/Next.js for web, Flutter for cross-platform mobile, Node.js with NestJS for backend, PostgreSQL for database, Redis caching, and AWS S3 for cloud storage. Typical delivery for a project of this complexity would be 10-12 weeks with milestone-based reviews. I am ready to discuss your milestones and start building your scalable messaging platform promptly. What specific SMS gateway do you prefer for sending OTPs, or are you open to recommendations? Best regards,
$555 USD in 11 days
5.4
5.4

Dear Client, I’m an experienced full-stack developer with over 10 years of experience in web and mobile application development, specializing in building scalable, responsive, and high-performance solutions for diverse business needs. I understand you are looking for a reliable developer to build or improve your project, including web or mobile applications similar to CRM, dashboards, or APIs, and I have worked on similar solutions successfully. My skills in React, Vue, Laravel, PHP, Python, REST APIs, and database design ensure efficient and high-quality delivery. Feel free to share more details or ask questions. I’m ready to refine my approach to match your exact requirements. Looking forward to working with you. Best regards, Md Ruhul Ajom
$250 USD in 4 days
5.5
5.5

Hey , I just finished reading the job description and I see you are looking for someone experienced in Website Design, React.js, Node.js, FastAPI, PostgreSQL, Web Development, Django, HTML, PHP and Graphic Design. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback since the last 5-6 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. Timings: 9am- 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Abdul Haseeb Siddiqui
$250 USD in 4 days
5.0
5.0

Dear client, I have reviewed your project requirements and would like to offer you a Informational Blog Website at a reasonable price. I would be honored to work with you and create a website that meets your requirements and will give you website better than your expectations. I will provide you website with very good quality work and ensure that you are completely satisfied with the final outcome
$250 USD in 3 days
5.3
5.3

⚠️ If you're not happy, you don’t pay. ⚠️ Hi there, Thank you for sharing the detailed project brief. I can build your real-time messaging application using Node.js and React Native with a premium, secure, and scalable design. I will deliver: • Phone number authentication with OTP • Secure admin panel for tracking user activity • Real-time messaging with WebSocket • User profiles, notifications, and security measures You will also receive: • Comprehensive documentation • Ongoing support post-launch I am confident I can execute your vision professionally and efficiently. Looking forward to discussing timeline and next steps. Best regards, Chirag.
$550 USD in 7 days
4.7
4.7

Mek'ele, Ethiopia
Member since May 5, 2026
$2-8 USD / hour
$30-250 NZD
₹150000-250000 INR
$30-250 USD
$750-1500 USD
$750-1500 USD
₹1500-12500 INR
₹1500-12500 INR
₹1500-12500 INR
$2-8 USD / hour
₹150000-250000 INR
₹37500-75000 INR
$250-750 USD
₹1500-12500 INR
$30-250 USD
$8-15 USD / hour
£250-750 GBP
₹1500-12500 INR
₹12500-37500 INR
€250-750 EUR