Virtual assistant live chat support jobs jobs
I need a proficient developer to build an e-commerce site that supports both physical and digital products. Expertise in popular e-commerce platforms like WooCommerce, Magento, or Shopify is expected. You should also have a concrete understanding of payment integrations, as the platform must support Credit Card and PayPal transactions. Key requirements include: - Product Category Integration: The setup must seamlessly differentiate between physical and digital goods, offering a user-friendly experience for customers shopping both categories. - Payment Gateways: The developer should successfully integrate both PayPal and Credit Card payment options, guaranteeing secure and efficient transactions. - Project Timeline: I am looking to have the project completed within a month. Th...
I'm seeking a knowledgeable and experienced developer to build an online gambling platform. While the specifics about its functions and gambling activities weren't identified, ha...about its functions and gambling activities weren't identified, having a broad understanding and experience in developing online gaming and betting platforms is essential. Core functionalities usually required for such a platform, such as security features, payment gateways, and user-friendly design, should be well within your expertise. Familiarity with creating live betting options, in-app game purchases, and player-to-player chat features will be a considerable advantage as these may be features we'd want to include. Being aware of legal and regulatory aspects related to onli...
I am looking for a helping hand in arranging and formatting collected references. -Duties include organizing references alphabetically, formatting them in Chicago and APA styles, and constructing a comprehensive bibliography. -Excellent communication is a must to keep me updated and the process smooth. -Proven prior experience with reference formatting and bibliography creation, especially in Chicago and APA styles, is crucial. -A keen understanding of Chicago and APA referencing formats is a key requirement for this job.
I'm seeking a passionate email marketing specialist who can create an effective mailing list containing 1,000 to 5,000 subscribers. The goal of this project is to engage our target audience, specifically vampire enthusiasts, movie buffs, and horror genre fans, to support our upcoming vampire hunting film's crowdfunding campaign. Key Responsibilities: - Building a mailing list within our specified range - Crafting engaging emails for our prospects - Managing and optimizing the email campaign Our email content will include: - Regular updates on film development - Progress of the crowdfunding campaign - Exclusive content and behind-the-scenes insights The ideal candidate should possess: - Proficient understanding of Internet Movie Database (IMDb) - Experience in So...
...expert in CSS who can tweak certain elements. The specific CSS elements or code that require modification are not yet defined but may include text styling, background color, or layout positioning, among others. Core of part of work that needs doing is defining style sheets so what the user sees is what gets printed! You will need to modify the code in an offline area and then i will import into the live system. I will provide CSS file and html snap shot of pages. We need to be able to print what we see on the screen the exact same way it is displayed. Currently we use saved 'pdf' files to print labels and we are trying to generate these at runtime. We can now generate them fine, but the last step, getting them printed requires some modification and manipulation of ...
I am seeking an experienced assistant who is talented in social media advertising and SEO marketing. This person will help me grow my online presence to drive more sales and attract a larger audience. Here's what I'm looking for: - Mastery of Instagram, TikTok, and Wix - Proven experience in increasing website traffic, improving brand awareness, and driving leads - Skills in target marketing, particularly towards young adults (18-24), adults (25-34), and parents/caregivers. If you have the necessary skills and can provide a strategic, results-oriented approach, I'm interested to hear how you can help.
...comprehensive website/exchange for trading real estate assets. The platform will offer a hybrid payment option, incorporating fiat and cryptocurrency, to accommodate a wide range of clients. Key Features: * Tokenization: The platform will enable tokenization of assets to facilitate seamless trading. * Fractional Trading: It should support fractional buying and selling of real estate assets. * Weekly Auction: The platform should have a weekly auction for live real estate assets, allowing users to place bids once a week. The platform should be user-friendly, secure, and capable of handling multiple payment options, including Credit/Debit Cards, Cryptocurrency, and Bank Transfers. Ideal Skills and Experience: - Proficiency in web development, particularly in creating secu...
I'm seeking an experienced mobile app developer to c...Local Providers Dashboard - Admin Dashboard - Push Notifications - Customer Support Operating Systems: - The app should be fully compatible with both iOS and Android devices. Design Style: - A clean and minimalist design is preferred. Ideal Candidate: - Proficient in mobile app development for both iOS and Android platforms. - Experienced in creating delivery service apps with features like real-time tracking, in-app payments, and user reviews. - Skilled in developing user-friendly and visually appealing interfaces. - Knowledge of integrating various dashboards, push notifications, and customer support features. - Ability to prioritize app security and user authentication. - Previous experience in local business ...
I'm planning to create a comprehensive platform to stream various types of video content – specifically, Movies, TV shows, Live events, and Colombian political news. This platform should be accessible both through a mobile app and a website to ensure a broader audience reach. Key Features: - User Profiles: The platform should allow users to create and manage profiles. - Commenting: The system needs the capability for users to interact: Posting comments under each video is a must. sers. - Rating: Furthermore, users should have the ability to rate the content, providing a degree of quality check for other u Ideal Skills and Experience: - Candidates should exhibit a strong proficiency in mobile app development. - Extensive experience in web development is also required. -...
I need a skilled web developer to design and develop a website for an online auction service. The site should include the following key features: - User registration and login: Users should be able to create accounts and log in to the website. - Bidding system: The website should support a bidding system where users can place bids on listed items. - Listing and searching items: Sellers should be able to list their items for auction, and users should be able to search for specific items they are interested in. Furthermore, the website should have a feedback and rating system where users can leave feedback or ratings for the sellers. Ideal skills and experience: - Proficiency in web development, particularly in e-commerce websites and auction systems - Knowledge of user experience...
I'm seeking a freelancer with proficiency in Python3 and OCR processes to assist with my forthcoming project. The objective is to establish an environment that can accurately extract printed text content from PDF documents. This extracted data should then be converted and provided in CSV format. The possible necessity of machine learning integration is anticipated, hence experience with such is advantageous. Key job requirements: - Python3 expertise for environment setup - Proficient in OCR for printed text extraction - Capability to export extracted data into CSV format - Familiarity with machine learning is a plus.
I'm in need of a skilled system admin to install Wowza on my Linux server. The main purpose of this installation is for live streaming. Key requirements include: - Setting up Wowza on a Linux server - Configuring basic authentication for security If you have experience with Wowza installations and configuring security settings, I'd love to hear from you. Please note that additional support for setting up recording features may be required in the future.
I need a professional to create a Shopify ecommerce store. I am unsure of the exact product type yet, so it needs to support both physical and digital products. I’m also uncertain whether I want a custom design or use a pre-designed theme. Hence, you should be experienced with both. In your application, include your past work, experiences handling similar projects, and a detailed project proposal on how you'd approach this task.
...Hyperledger Fabric on a vertual machine which is "ubuntul - Primary Goal: I aim to utilize Hyperledger Fabric for the development of a blockchain application. Therefore, the installation should be done with this purpose in mind. The selected freelancer should have a sound understanding of blockchain technology and the development process. - Level of Support: While I am capable of handling the basic setup, I am in need of guidance and support during the installation process. The freelancer should be able to explain and guide me through the setup, ensuring that I can manage the system post-installation on my own. The ideal candidate for this project should have the following skills and experience: - Proficiency in Hyperledger Fabric: The freelancer should have a pro...
...providing transparency and helping other users make informed choices. Other Details: - The website is expected to have more than 1000 user profiles. Therefore, it should be designed and built with scalability in mind. - I'm unsure on whether the website should support multiple languages so I'll need advice on this. The ideal freelancer for this job should have experience in developing similar directory websites, have a strong understanding of user experience and be able to provide guidance on the choice of multiple languages support. A keen eye for design is also a plus. would need a directory cms backend, like - Manage, edit, create, delete text, add images, tables, fonts etc on EVERY single page. - Order each page as you prefer - Upload and manage banner e...
I'm in need of a dedicated individual to provide customer service and scheduling assistance 5 days per week. The support hours should be available in the Pacific Standard Timezone. Key responsibilities: - Handling product inquiries - Scheduling appointments Ideal candidates should have: - Strong communication skills - Fluency in English - Customer service experience - Ability to manage and organize schedules efficiently
I'm in need of a talented professional who is experienced with either Unity or Unreal Engine, or ideally both. This project will involve creating 3D designs and animations for a virtual reality experience that I'm developing. Key requirements: - Proficiency in either Unity or Unreal Engine (experience with both is a plus) - Strong 3D design and animation skills - VR experience is a big plus The project is of moderate complexity, so experience with interactive objects and limited NPC interactions is necessary. Experience in a similar project or in virtual reality game development is highly desirable. If you think you're a suitable candidate for this project, please get in touch and share examples of your relevant work.
I need a Python expert to create a program that will work with Fyers API to support my algorithmic trading strategies. Speed is of utmost importance for this project due to the nature of the trading environment - every millisecond counts. The main functionalities of the code should include: - Fetching real-time market data: This is crucial for the functioning of the trading strategies and making informed decisions. - Placing buy and sell orders automatically: The code should be able to automatically execute the trading strategies by placing buy and sell orders as per the defined logic. - Creating custom trading strategies: The program should support the implementation of my specific trading strategies, which are the main feature of my trading approach. Ideal candidate...
I need an experienced social media manager to grow my startup, which supports the wellbeing of athletes and their families worldwide. Our social media presence spans Facebook, Instagram, Twitter, and LinkedIn. Key Responsibilities: - Develop and implement a social media strategy aimed at increasing brand awareness. - Generate leads and drive sales through our established subscription model. -...this role has a successful track record in social media marketing, particularly within the sports industry, and a strong understanding of operating effectively across multiple platforms. An understanding of marketing to a diverse audience is essential. We need to target athletes from academy and collegiate level right the way through to professional athletes and retired players who might need su...
I'm looking for a talented developer with experience in Unity3D version 2022.3.26 to create a full immersive virtual reality scene. The existing scene depicts an office with a desk. (scene already finish) I need the user to appear seated at the desk, using Vision Pro, device and simulator, goggles in their own virtual environment. floating buttons in the air to interact, I leave the photo below porject starting at : $45 USD
Join our dynamic team as a Calling Agent for our virtual academic coaching classes in India. In this role, you’ll engage with prospective students and their guardians, introduce them to our educational offerings, and encourage them to sign up for our complimentary 5-day demo classes, ultimately guiding them towards enrollment/admission. We’re seeking someone with outstanding communication abilities, a congenial and convincing presence, and adeptness at managing objections. Enjoy the flexibility of a remote role and work from anywhere you choose. Essential Skills: -Superior communication prowess -Proficient in persuasion and sales strategies -Competent in objection handling -Amiable and welcoming personality -Important Aspects of the Role: Key Points of role: -Profic...
Move both and to vps from shared hosting. Move databases. Install mariah, php admin, conf nginx, move cron jobs, etc.
I'm looking for a skilled developer to create an interface that can convert GCODE files for tool path generation and support basic movement simulation - simulate its usage on a virtual CNC machine equipped with two spindles that can be controlled separately. -- this CNC machine is a simulation and does not physically exist i need the interface just for my academic assignment Ideal skills for this project include proficiency in software development, knowledge of GCODE programming, and experience in CAD/CAM software. The ability to simulate CNC machine movements and familiarity with image file formats like JPEG, PNG, and SVG will be highly advantageous.
...app that facilitates video playback based on specified times and events. These parameters will be provided in a MySQL database. The novel feature of this app is its event-driven functionality, it must have the capability to: - Play video at specified times - Play video triggered by certain specified events - Incorporate both time-based and event-based functionalities The app does not need to support user authentication or profiles, simplifying its specifications. Videos for the app will be streamed from a specific source, adding a streaming functionality will be necessary for this job. Ideal skills and experience for this job would include: - Proficiency in mobile app development (any platform) - Experience with video playback functionality in mobile apps - Familiarity wit...
I require a system to be developed using Django Python, echoing the core functiona...the core functionality of platforms such as chatbase.co. The platform must include: - A efficient dashboard where users can create a chatbot. - Registration functionality, allowing users to create and manage accounts. - Subscription functionality, permitting differing membership levels or premium offerings. - Seamless ChatGPT integration, enabling the bots to converse naturally. - Installation support for users. - A professional and corporate design throughout the platform. - Essential landing and other marketing pages. Proficiency in Django Python, interface design, and integrating APIs like ChatGPT are necessary for this project. Experience in developing chatbot platforms or similar would be adv...
I need an expert to properly assist me moving from Google Workspace to Microsoft 365. I have 19 users currently on Google Workspace and require help migrating our files. The project includes but is not limited to: - Planning and coordinating the file migration - Provision of a smooth transition with minimal disruption to business operations Given the nature of this project, an in-depth knowledge of Google Workspace and Microsoft 365 is vital. Previous experience in similar migrations would be a significant asset. Please bid with confidence if you believe you're a suitable fit for this project. Please note that no explicit mention was made of the specific file types that need to be migrated, so prepare for a comprehensive transfer all typical file types stored on our Google Works...
Hi, I have a wordpress site using wp job manager plugin and have various modifications and enhnacements via child theme. As I‘m on a leave I require some support and therefore following things needs to be done: -iframe functionality for job ads submit via link url. Already implemented is a view for PDF. Some code already available for iframes too. -make a multi page form for submission of job ads mobile friendly. -fix a background for a dynamic pop up Please ping me in private for full details.
...expertise in creating attractive and detailed eBay product listings. My listings primarily focus on furniture items. I will provide image files. Prices and dimensions can be found on our website. I will need you to create appropriate product titles and a short description. Also include price and dimensions details. The listings can be saved in drafts ready to be approved by myself before sending live on eBay. Please be familiar with eBay product listings. Well written English and grammar is important to me. I'm NOT looking for a software to automate with our website. I'm also NOT looking for an agency. I'm looking for an honest freelancer who is looking for continuous work. Please let me know the cost for 50 listings and the time you require to complete th...
I am seeking an experienced 360-degree video creator for a short virtual tour of a historical site. The tour should prioritize simple navigation, allowing viewers to explore the location at their own pace. Key Requirements: - Experience in 360-degree video production - Knowledge in historical landmarks, able to highlight its importance - Skills in creating simple, intuitive navigation features No need for interactive hotspots or audio commentary, focus should be on the visual experience and ease of navigation. The final product should be a compelling virtual tour that showcases the historical site in all its glory.
I need an experienced developer to create a custom AI Chat Bot for my website. The bot should have the following functionalities: - Answer frequently asked questions posed by potential customers. - Schedule appointments, allowing customers to request specific time slots, choose from available time slots or have the bot automatically suggest available time slots based on customer order. - Send invoices to customers once appointments have been confirmed via chat and paid for. I need to create a custom AI Agent that will respond to customers that want to purchase services. This agent will need to respond to questions, provide pricing based on customer responses, schedule appointments depending on availability using Google Calendar, and send invoices for payments by creating an...
As a company aiming to enhance our brand visibility, we are looking for an experienced SEO and Google Ads specialist to support our e-commerce website. Key Responsibilities: - Review our existing SEO strategies and implement improvements to increase online visibility - Develop and execute Google Ads campaigns to drive targeted traffic Your Skills: - Proven track record of improving brand visibility for e-commerce websites - Experienced in creating and optimizing SEO strategies - Proficient in Google Ads management - Understanding of the young adult demographic Please ensure to provide examples of previous successful projects in the E-commerce sector. Your aim should be to not just increase traffic, but ensure that our brand presence is effectively communicated to our target audi...
Project Overview: We are seeking a talented landsc...submit their proposals, including portfolio samples and a brief outline of their approach to the project. The deadline for submissions is 9th of May. Shortlisted candidates will be contacted for further discussion and a site visit if necessary. Why You Should Respond: Opportunity to work on a prestigious lakeside garden renovation project. Collaborative environment with detailed briefing and support materials provided. Chance to showcase your creativity, attention to detail, and ability to deliver exceptional value for money. Satisfaction of contributing to the enhancement of a property's aesthetic appeal and functionality. We look forward to receiving your proposals and embarking on this exciting garden transformation jo...
I'm looking for a meticulous and time-efficient virtual assistant to help me with my daily administrative tasks. The nature of the job includes handling application filing, document submission, and invoice creation. Key Responsibilities: - Organizing and filing applications effectively - Ensuring timely submission of documents - Creating invoices with accuracy and efficiency - Responding to emails as needed - Updating spreadsheets with the latest information The job involves a moderate volume of work, so being able to manage your time effectively and maintain attention to detail is crucial. Ideal Skills: - Proficiency in organizational tools and methods - Experience in data entry - Strong communication skills - Familiarity with basic accounting principles - Proven t...
...sensors will be sent to the application through the Bluetooth module and the data like date, time, navigation directions and the call notification from the app will be sent to the Arduino for displaying the same on the OLED screen. Whenever there is a collision of the helmet occurs a collision signal will be sent to the application through the Bluetooth module and an emergency message for help with live location of the user will be sent to the contacts saved in the application. If the accident is not that severe the the user can dismiss the emergency message that is to be sent to the contacts within a given time limit. The ultrasonic sensor has to be connected to the buzzer, and a limit of 4 meters is to be set so that every time a object comes within the range the buzzer will bu...
Note: I want only individual freelancers who works freely. I'm seeking a skilled developer that can seamlessly integrate the Zegocloud service into my application. This addition aims to provide user-friendly video and audio-calling functionality, with a live stream feature. Key Requirements: - Integration of Zegocloud for video and audio calling - Addition of live streaming function - Compatibility across iOS and Android devices Specific Functions: - Video Call - Audio Call - Live Stream An ideal candidate would have: - Previous experience with Zegocloud or similar platforms - Proficiency in app development across both iOS and Android platforms - A strong understanding of user experience design for video/audio calling Looking forward to your proposals.
I'm seeking a skilled developer that can seamlessly integrate the Zegocloud service into my application. This addition aims to provide user-friendly video and audio-calling functionality, with a live stream feature. Key Requirements: - Integration of Zegocloud for video and audio calling - Addition of live streaming function - Compatibility across iOS and Android devices Specific Functions: - Video Call - Audio Call - Live Stream An ideal candidate would have: - Previous experience with Zegocloud or similar platforms - Proficiency in app development across both iOS and Android platforms - A strong understanding of user experience design for video/audio calling Looking forward to your proposals.
I'm in need of a Windows-compatible software that will help me manage my shop's logistic operations more efficiently. The software should not only handle the logistic side, but also help me in billing process. Key Features: - Logistic Management: The software should provide comprehensive support in handling various logistics aspects of my shop. - Billing Support: A robust billing system that allows for easy and accurate invoicing is a must. - Shop Metrics Analysis: The software should enable the analysis of specific shop logistics metrics, such as sales data, inventory levels, and customer demand patterns. Skills and Experience: - Experience in developing logistics and billing software for Windows. - Proficiency in integrating external services and APIs. - Strong ...
I'm looking for an expert to help me with probability theory, statistical inference, and data analysis. The project involves both theoretical concepts and practical applications. I essentially need assistance to complete a specific task or assignment, so the focus will be on hands-on problem-solving. Key Responsibilities: - Thoroughly explain and ensure understanding of various probability and statistics concepts. - Help with real-world data analysis and statistical inference applications. - Assist in applying these theories to specific assignments and tasks. Ideal candidates for this project should have: - An advanced degree in statistics or a related field. - Extensive experience with probability and statistical theory. - Proven track record of applying these theories to practic...
...reflection of the company's ethos and personality, reinforcing brand recognition and loyalty. 3. Functional Efficiency: Beyond aesthetics, reception desks must also be designed with functionality and practicality in mind. They should be equipped to handle administrative tasks such as check-ins, appointments, and inquiries efficiently, with ample workspace, storage, and technology integration to support daily operations. Key Design Considerations: and Configuration: The layout of a reception desk should be carefully planned to optimize traffic flow and accessibility. Considerations such as the placement of entrances, exits, waiting areas, and office amenities will influence the desk's configuration and position and Finishes: The choice of materials and finishes for...
...protocols and secure authentication methods to safeguard sensitive information. - Provide options for community owners to manage privacy settings and permissions within their communities. **Deliverables:** - Fully functional web-based platform with the specified features and capabilities. - Documentation outlining the technical specifications, installation instructions, and user guidelines. - Support and maintenance services for a specified period after the completion of the project. **Timeline:** The project timeline will be discussed and agreed upon with the selected freelancer based on the complexity of the requirements and the estimated development effort. **Budget:** The budget for this freelance project will be negotiated based on the scope of work, deliverables, and ...
I'm looking for a proficient mobile app developer to create an iOS and Android app for my Wordpress website. The main aim is to streamline the registration and booking process, by taking the user directly to the booking section of my website. We're specifically focusing on offering airport pickup services, and the app should support only UK airports. Key Features: - User Registration - Journey Booking Interface Essential Skills: - App Development (iOS and Android) - Knowledge of Wordpress - Experience in UX/UI for ease-of-navigation Please ensure you have relevant experience before applying. Looking forward to seeing your proposals. Please only set a price that you agree on as I will not be adjusting amount
Hello! I am planning to develop a simple website w...needing to enter their ID or password. Users can store up to 100MB of files in their folder. Relevant advertisements will appear at the bottom of the memo website, aimed at increasing purchase rates. Another section of the website will explain why users should choose this website. In the "WHY US" section, the website's color scheme will change as the user scrolls down. The website will feature a live chat function to immediately address any inquiries or suggestions regarding the website. The "password save feature" on the website will include a specific format for storing passwords (e.g., password entry field, website URL field), and this sensitive information will be encrypted multiple times to pre...
Hello! I am planning to develop a simple website w...needing to enter their ID or password. Users can store up to 100MB of files in their folder. Relevant advertisements will appear at the bottom of the memo website, aimed at increasing purchase rates. Another section of the website will explain why users should choose this website. In the "WHY US" section, the website's color scheme will change as the user scrolls down. The website will feature a live chat function to immediately address any inquiries or suggestions regarding the website. The "password save feature" on the website will include a specific format for storing passwords (e.g., password entry field, website URL field), and this sensitive information will be encrypted multiple times to pre...
I'm seeking a civil engineer to assist with my project's land disturbance permit application. The ideal candidate should be highly skilled in structural design and site development. Key Responsibilities: - Utilize your expertise in structural design to ensure that all plans adhere to the necessary standards and regulations. - Develop site development plans that are in line with the project's requirements and are optimized for the environment. - Assist in the preparation of the land disturbance permit application, ensuring all necessary details are included and the document is comprehensive and compliant. Ideal Skills and Experience: - Proven experience in civil engineering, specifically in the area of permitting. - A strong background in both structural design and site dev...
I'm looking for a skilled developer who can implement real-time chat functionality in Node.js. - The chat service is expected to handle a user volume ranging from 100 to 1000 users. It should be scalable and robust enough to support this capacity. - The chat system should support multimedia messages, including images, videos, and text. This feature is essential for user engagement and interaction. - The ideal candidate will have a strong background in Node.js development and expertise in implementing real-time communication systems. Experience with socket programming and chat applications would be a great advantage. Please submit your proposal if you are confident in delivering a high-quality and scalable real-time chat system.
Looking for a Virtual Assistant from Philippines with strong English skills (mandatory, test assignment will be given to check this), and accounting knowledge. Knowledge of SEO/ Content writing is a big advantage Overall engagement would be 8 hours per day x 6 days a week in US day time (India/ PH night shift). The requirement may increase depending on the quality of work delivered. Only looking at Individual Freelancers, team bids will be rejected. If this description excites you, happy to chat. The price range quoted is monthly price range
...services. - **Help Page**: This should be a chatbot for easy setup aimed at improving customer experience. - **Sign Up Pages**: These should be user-friendly and intuitive. - **Analytics**: The platform should have a tracking system to provide insights into user behavior. - **Profile**: Users and businesses should be able to create and manage their profiles. - **Languages**: Multi-language support to cater to a wider audience. - **Dashboard**: Users should have a personalized dashboard to manage their activities. - **Services and Pricing**: Businesses should be able to list their services and corresponding pricing. - **Appointments**: A feature to manage and view scheduled appointments. Ideal candidate should have extensive experience in creating clean and user-friendl...
As a Remote Admin Specialist, We are looking for a talented individual to help us handle job posting and messaging tasks, specifically on LinkedIn. Key Responsibilities: - Handling one job post per day on LinkedIn. - Messaging potential candidates by sending one time messaging. - Organizing google drive. The ideal candidate should have: - Experience in LinkedIn job postings. - Proficiency in written communication. - Excellent organizational skills. This position is remote and requires someone who can work independently, is reliable and has a high attention to detail. This task is for those who are starting out as a freelancer.
I'm looking for a skilled developer who can implement real-time chat functionality in Node.js. - The chat service is expected to handle a user volume ranging from 100 to 1000 users. It should be scalable and robust enough to support this capacity. - The chat system should support multimedia messages, including images, videos, and text. This feature is essential for user engagement and interaction. - The ideal candidate will have a strong background in Node.js development and expertise in implementing real-time communication systems. Experience with socket programming and chat applications would be a great advantage. Please submit your proposal if you are confident in delivering a high-quality and scalable real-time chat system.
