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BOLANG NOW is already taking shape as a social-networking space, but it still lacks one vital ingredient: a snappy, reliable real-time messaging system. I need that single feature built end-to-end and plugged into the current codebase so members can chat instantly, see each other’s online status, and never lose a message, even when they switch devices. You will own everything from the backend event stream to the front-end chat UI: • Design a scalable real-time architecture—[login to view URL], WebSockets, Firebase, or an equivalent technology is fine as long as it handles thousands of concurrent connections smoothly. • Create private and (future-proofed) group chat endpoints, complete with typing indicators, read receipts, and push notifications. • Persist all messages securely in a database so history reloads instantly on login. • Deliver clean, well-commented code plus a brief setup guide so my team can deploy updates without you. Acceptance is straightforward: messages must appear on another device in under two seconds, remain stored after refresh, and pass a quick security review for injection and rate-limit issues. If you have shipped similar chat features before, let’s get this done.
Project ID: 40404374
170 proposals
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Active 3 days ago
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170 freelancers are bidding on average $2,186 USD for this job

Greetings from Logictrix! My name is Jas, and I am looking forward to discuss about your app in details over the Chat or Call. We have enough app developers available in team so I can assure you to deliver this project at a fairly low cost with great quality and with a commitment for long term support. *** We have earned 'Expertise' level in AI development and used many AI platforms like openAI, Freepik, Antigravity, Cursor etc for App development and other AI work! *** We have developed around 400+ Android and iOS apps using Native and Flutter SDK in the past 15 years, Many apps are Live in Google play and App store. We will share our detailed portfolio over the Chat once we connect. Looking forward to your reply... Thanks and Regards Jas
$1,500 USD in 20 days
9.7
9.7

Hi there, I will build the real-time messaging system for BOLANG NOW — private chat, online presence indicators, typing status, read receipts, and push notifications — all wired into your existing codebase. For the architecture, I will use WebSockets with a Redis-backed pub/sub layer to handle concurrent connections efficiently. Redis lets you scale horizontally by adding worker nodes behind a load balancer without rewriting socket logic. Messages persist to your primary database on send, so history loads instantly on login or device switch. I will also implement message queuing for offline users — if a member is disconnected, queued messages deliver the moment they reconnect, ensuring nothing is lost. Security-wise, I will add input sanitization, token-authenticated socket handshakes, and per-user rate limiting on message sends. Ready to start whenever you are. Kamran
$1,550 USD in 25 days
8.5
8.5

Hello, I’d be glad to help bring real-time messaging to BOLANG NOW with a smooth and dependable chat flow. I’ve built similar systems that keep messages synced across devices while staying fast and simple for users. I can design a stable backend along with a clean chat interface that supports indicators, receipts, and secure message persistence. Happy to integrate it neatly into your existing code so your team can manage updates easily. Thanks, Teo
$2,000 USD in 10 days
6.5
6.5

Hello, I hope you are doing well. I understand that you are looking to build a REAL-TIME MESSAGING SOCIAL MOBILE APPLICATION, and I would be happy to help. I have extensive experience in designing and developing applications and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.
$1,500 USD in 15 days
7.2
7.2

As an experienced AI & Embedded Systems Engineer specializing in building complete intelligent products, I believe my skillset is a perfect match for your project. I bring with me the ability to not just envision and design a scalable real-time architecture, but also the expertise to implement them efficiently. In line with your requirements, I have a proven track record of developing precise and efficient algorithms which ensures clean, well-commented code. Moreover, my proficiency in IoT and Mobile App Development complements the integral nature of this project. I have an extensive command over BLE device integration, which aligns perfectly with your need for smooth backend event stream and real-time device control. Additionally, my wisdom in REST APIs and cloud-based backends such as Firebase and Supabase fall directly in line with your requirements. Throughout my career, I have consistently delivered impactful and efficient solutions that helped startups scale. My commitment to excellence coupled with the ability to go above and beyond to meet deadlines makes me the ideal fit for your project. So let's get started on building a reliable real-time messaging system that enhances user experience whilst maintaining maximum security!
$3,000 USD in 60 days
6.5
6.5

Dear client, I have already developed chat app similar to whatsapp, I can show you the demo for testing, I can develop your app with your given features,I have more than 9 years of exp in apps and web development.
$1,500 USD in 10 days
6.2
6.2

Hi, I’ve carefully reviewed the requirements for integrating a real-time messaging system into BOLANG NOW. With extensive experience in designing scalable chat architectures using WebSockets and Firebase, I can seamlessly build a feature-rich, reliable messaging platform that supports thousands of concurrent users and syncs instantly across devices. I will deliver private and scalable group chat capabilities, complete with typing indicators, read receipts, and secure message persistence that withstands refreshes and device switches. Alongside clean, well-commented code, I will provide a straightforward setup guide enabling your team to manage future updates confidently. I propose starting immediately and aiming to complete within 14 days to ensure thorough testing across all key functionalities, especially message speed and security. Are there any preferred technologies or database systems currently in your codebase that you'd like me to integrate for messaging? Best regards,
$2,500 USD in 15 days
4.9
4.9

Hi there, Strong alignment with this project comes from experience delivering real-time messaging systems where low latency, reliability, and scalability are essential. Clear understanding of the requirement to build and integrate a chat system with WebSockets/Firebase, supporting private messaging, online presence, typing indicators, read receipts, and persistent storage. Hands-on expertise with real-time architectures, database design, and push notifications ensures fast message delivery and seamless cross-device sync. Risk is minimized through scalable architecture, secure data handling, and performance testing under load. Available to start immediately—happy to share a quick demo or discuss next steps. Recent work: https://www.freelancer.com/u/chiragardeshna Regards Chirag
$2,250 USD in 7 days
4.6
4.6

Hi , You need an expert in Tiktok Ads, iPhone, PHP, API Development, Facebook Marketing, Database Management, Frontend Development, Mobile App Development, Android and Backend Development, and I have a tailor-made solution ready for you. Your project brief instantly reminded me of a recent client who faced similar challenges, and I know exactly how to execute this flawlessly for your specific needs. To ensure we hit the ground running, I have three quick questions: Are there any additional technical details or constraints not mentioned in the brief? What is the primary hurdle currently blocking your progress on this? What is your strict timeline for completion? Why trust me with your project? The Record: 250+ Projects. 6+ Years. 100+ consecutive 5-star reviews. The Standard: Zero misses. I don’t just finish the job; I guarantee flawless execution. The Availability: Full-time freelancer, online 9 AM - 9 PM EST. My biggest "heavy-hitter" projects are kept off my public portfolio to protect client confidentiality. Click 'CHAT', and I’ll immediately send over relevant, private samples so you can see the standard of my work firsthand. Best regards, Syed Fawad Ahmed.
$1,500 USD in 4 days
4.4
4.4

I understand that BOLANG NOW already functions as a social networking platform but requires a robust, real time messaging system to enable seamless user interaction across devices. The goal is to build and integrate a scalable chat solution that supports instant message delivery, online/offline presence indicators, and reliable message persistence without loss. I will design a high performance real time architecture using technologies such as WebSockets, with the option of Firebase if it better aligns with your existing stack, ensuring the system can handle thousands of concurrent users efficiently. The implementation will include private chat functionality with future ready support for group messaging, along with features like typing indicators, read receipts, and push notifications for enhanced user engagement. All messages will be securely stored in a database to allow instant retrieval upon login or refresh, maintaining continuity across devices. I will also ensure proper security measures such as input validation, rate limiting, and protection against injection attacks. The final deliverable will include clean, well documented code and a clear setup guide so your team can easily maintain and deploy updates, ensuring messages are delivered within seconds and the system meets performance and reliability expectations.
$2,250 USD in 7 days
2.2
2.2

Building a real-time messaging system that seamlessly integrates with BOLANG NOW’s social platform requires careful orchestration between fast event streaming and reliable data persistence. One challenge is ensuring messages sync effortlessly across devices without lag or loss, especially under heavy user load. I’d propose using WebSockets paired with a robust backend like Node.js and a NoSQL database to store messages securely and facilitate instant updates. Implementing read receipts and typing indicators through socket events will keep conversations dynamic while a simple setup guide will make future maintenance straightforward. Having developed chat modules for growing apps before, I’m happy to share a quick idea if helpful.
$1,700 USD in 7 days
2.2
2.2

THIS PROJECT IS A PERFECT MATCH FOR MY EXPERTISE AND DESIGN APPROACH. Your need for a clean, professional, and user-friendly real-time messaging system with seamless multi-device synchronization and integrated status indicators aligns perfectly with my skills. I understand the importance of an automated, scalable backend using WebSockets or similar technology to handle thousands of users without delays. Although I’m new to Freelancer, I bring solid experience from successfully completed projects outside the platform, and I’m offering a special introductory discount for my first clients here. I would love to chat more about your project! Come and speak with me, and at the very least you’ll walk away with some helpful free advice and I’ll make sure the final result is exactly what you envisioned, no compromises. Regards, Leah Govender
$1,650 USD in 14 days
0.4
0.4

I can design and implement a reliable real-time messaging system tailored specifically for your BOLANG NOW social app. This would give your users fast, stable one-to-one and group chat that feels modern, responsive, and native to your existing experience. I’ve implemented chat and presence features for social and community apps using WebSockets, Firebase, and socket-based backends, including typing indicators, read receipts, and push notifications. I’m comfortable designing message data models that scale while keeping latency low and costs under control. My approach would be to assess your current architecture, choose the best real-time stack for your needs, then implement messaging, presence, and basic moderation, followed by testing and refinement based on real user behavior. I would love to chat more about your project! Regards
$2,250 USD in 7 days
0.0
0.0

Hi my name is Muzammil Fareed i am ai machine learning python django flask react js and DevOps engineer and I have a five year of experience. Hi I read your requirements and definitely i can help you in your project
$2,250 USD in 7 days
0.0
0.0

⭐⭐⭐⭐⭐ Hi there, I can definitely help refine your existing OpenCV pipeline. I understand the challenges of stitching wide-angle feeds, especially with issues like visible seams, misalignment, and exposure differences. I’ve worked on multiple image stitching projects and can help address these concerns effectively. For removing the seam, I’ll improve the blending technique, possibly utilizing multi-band blending or advanced techniques like seamless cloning to make the transition more natural. For alignment, I will review the feature matching and homography calculation to ensure robustness across various camera angles. Reducing exposure differences will likely involve histogram matching or gradient-based adjustments. I’ll update the current code with these improvements, and I’ll provide a concise explanation of the changes I’ve made for clarity. After this, I’d be happy to help with future object detection/tracking tasks. Here’s an example of a similar project I worked on: OpenCV Image Stitching Project Let’s optimize your pipeline! ✅
$2,250 USD in 7 days
0.0
0.0

Hi There , Good evening! I am professional mobile developer with skills including Database Management, Mobile App Development, Android, Backend Development, Facebook Marketing, PHP, Tiktok Ads, API Development, Frontend Development and iPhone. Please send a message to discuss more about this project. Thank you for your attention
$3,000 USD in 3 days
0.0
0.0

Hi , Good morning! I am an expert mobile coder with skills including Tiktok Ads, Frontend Development, Mobile App Development, Backend Development, API Development, iPhone, Android, PHP, Facebook Marketing and Database Management. Please send a message to discuss more about this project. With regards
$1,500 USD in 4 days
0.0
0.0

Hello, Greetings , Good morning! I am skilled mobile developer with skills including PHP, Tiktok Ads, Frontend Development, Android, Backend Development, Database Management, API Development, iPhone, Facebook Marketing and Mobile App Development. Please contact me to discuss more regarding this project. Thank you
$1,500 USD in 2 days
0.0
0.0

Hi Mate , Good morning! I am an expert mobile software engineer with skills including Tiktok Ads, iPhone, Backend Development, Android, Database Management, API Development, Facebook Marketing, PHP, Mobile App Development and Frontend Development. Please contact me to discuss more about this project. Your Sincerely
$1,500 USD in 6 days
0.0
0.0

Hello Mate!Greetings , Good morning! I am skilled mobile software engineer with skills including PHP, Database Management, Frontend Development, iPhone, Tiktok Ads, Backend Development, Mobile App Development, Android, API Development and Facebook Marketing. Please send a message to discuss more about this project. Thank you
$1,500 USD in 4 days
0.0
0.0

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