US Stock Order Flow Radar

@a4logic

Hello, With my extensive 15+ years of experience, I have developed a reputation for building robust, efficient, and reliable web and mobile applications. One area of particular focus has been in creating high-speed, real-time platforms, making me very well-suited to your project's needs. For instance, I have previously integrated order flow systems with three stock exchanges and have the know-how to navigate each system's unique characteristics. Moreover, my proficiency in JavaScript and PHP will prove essential in connecting your project to data sources like IEX Cloud or Polygon. What sets me apart further is my understanding of the trading world. I appreciate the significance of millisecond-level speed and seamless functionality during trading hours; any lags or downtime can be detrimental. My solutions will guarantee uptime during U.S. trading hours, so you won't miss a beat. Thanks!

@AnumFatima210

Hi, I went through your project details and understand what you're looking to achieve. I'd be interested in working with you on this. Based on the requirements you've shared, I can handle the project from start to completion while keeping the work aligned with your expectations, timeline, and desired outcome. My approach is straightforward: first, I'll make sure the requirements and expected deliverables are clear. Then I'll complete the work in structured stages, share progress along the way, incorporate your feedback, and deliver the final work after everything has been reviewed. Before we begin, I have a couple of questions about your requirements that will help me understand the scope more accurately. Feel free to message me so we can discuss the details and determine the best way to move forward. Best regards, Anum

@denisSolution

Hi, I'm Denis, a full-stack developer who has built real-time data streaming systems and market monitoring tools. I understand what you need—a fast, reliable interface surfacing order flow signals across major exchanges without lag. The core challenge is handling incoming quote volume efficiently. You need a system that ingests live data, processes it without bottlenecks, and pushes updates to the frontend fast enough that you don't miss opportunities. Volume spike filtering must happen server-side to avoid overwhelming the browser. I'd start by selecting the right data provider based on latency and symbol coverage. Polygon's WebSocket tends to be faster for this use case. Then I'd build a lightweight backend that subscribes to the feed, applies your spike detection logic in real-time, and streams only relevant updates to the client. For the frontend, I'd use a framework that handles frequent updates efficiently without unnecessary re-renders. The key is the filtering layer. Rather than sending every tick to the browser, the backend calculates volume anomalies and only pushes alerts when thresholds are crossed. This keeps network traffic manageable and your interface responsive during volatile market hours. One realistic concern is data provider reliability during high-volume periods. I'd build in fallback logic and monitoring so you know immediately if the feed drops. I can start right away. Let's discuss the details. Thanks, Denis.

@FizzaNadeemK

Hi, I can build the Order Flow Radar with a low latency WebSocket architecture for real time quotes, trades, volume and cumulative tick data across NYSE, NASDAQ and AMEX. Polygon is a strong option because its stock WebSocket supports real time trades and quotes, including all ticker subscriptions.

@SmartCodeDev

Hi there You want a radar screen that keeps up with the tape, not another slow chart site. I would run a thin desktop or web client off one legal WebSocket feed (Polygon or IEX Cloud are solid for NYSE, NASDAQ and AMEX once you pick the plan) and stream bid, ask, last, volume and cumulative ticks into one grid you can scan fast. For unusual size or volume I would keep a short rolling baseline per symbol and highlight rows when a print or spike crosses your rules, so aggressive buying or selling pops without you clicking every ticker. I have shipped live trading style automation before: https://www.freelancer.com/projects/api/Pocket-Quotex-Trading-Bot https://www.freelancer.com/projects/python/Football-Betting-Platform-Milestones You bring the API key and where you want it hosted, I deliver runnable source plus a quick setup guide so you can tweak filters later. If you want proof first, I can do a short screen share of a similar stream on my side.

@anandinfraveo

**Can start today, I can build your US Order Flow Radar for NYSE NASDAQ and AMEX** I am Anand, full-stack dev focused on fast real-time web apps with clean production code. Connect: I will use Polygon or Tradier WebSockets for legal live quotes across all three exchanges and suggest the best plan for cost vs speed. Display: Simple scan-friendly grid with bid ask last trade volume and cumulative ticks, optimized for millisecond updates during US trading hours. Allow: Custom filters and highlights for unusual size and volume spikes so you spot aggressive buying and selling instantly. Recent work: A live trading dashboard still in use today, and a booking platform running two years later. Deliverable will be a running app with source code plus quick setup guide for deploy and extend. Do you want web-based or desktop, and do you already have a Polygon or Tradier key I should build against?

@arslanshahid386

Hi, I understand you're looking for an "Order Flow Radar" that streams real-time prices for NYSE, NASDAQ, and AMEX symbols with millisecond-level speed and reliable uptime. This is a complex task, particularly given the need to connect to a data source that legally provides live quotes and ensures seamless streaming during U.S. trading hours. The main challenge here is ensuring low-latency data transmission and maintaining a stable connection to a reliable data provider. My approach would involve first assessing multiple data sources like IEX Cloud or Polygon to identify the one that offers the best balance of speed and reliability. Prioritizing a robust architecture to handle potential data surges is also crucial. With extensive experience in real-time data streaming and having worked with APIs like WebSockets for financial data, I'm well-equipped to tackle this project. Q1 – Which data source do you currently prefer or have access to for live quotes? Q2 – Are there specific symbols or types of data you wish to prioritize in the stream? Q3 – Do you have any existing infrastructure or preferences for a web-based vs. desktop application? Looking forward to hearing from you.

@muhammadsaad90

Hello, I can build your lightweight Order Flow Radar with a fast, reliable architecture designed for real time market data streaming during U.S. trading hours. I have experience developing real time applications, WebSocket integrations, financial data dashboards, and high performance data processing systems. I can integrate a legally licensed market data provider such as Polygon, IEX, Tradier, or another suitable source after reviewing your coverage and latency requirements. The application can display bid, ask, last trade, volume, and cumulative tick data in a clean interface, with configurable filters and visual highlights for unusual volume and size activity. I will focus on efficient WebSocket handling, low latency updates, stable reconnect logic, and resource efficient rendering. You will receive the complete source code, a working application, and clear setup documentation so you can deploy and extend it independently. I can also share relevant examples of my previous real time and data driven projects.

@azwa04

Hi there, Could you share your preferred data source for streaming live quotes? I can help you build a lightweight “Order Flow Radar” that ensures millisecond-level speed and reliable uptime during trading hours. I have extensive experience in developing real-time applications and can connect to data providers like IEX Cloud or Polygon. The layout will be user-friendly, allowing you to filter out unusual size or volume spikes for quick insights. With my expertise, I can ensure that the application meets your performance needs. Additionally, I’ll provide a quick setup guide along with the source code for your convenience. If you have a working prototype in mind, I’d be happy to discuss and show my previous work. I’m looking forward to your response!

@ayesha86664

Hi there! I understand you need a lightweight real-time market dashboard that can stream quotes across NYSE, NASDAQ, and AMEX with fast updates and reliable performance during trading hours. I have experience with Python, JavaScript, WebSockets, API integrations, real-time dashboards, and performance-focused applications. I can build a clean interface for monitoring high-volume market data without unnecessary overhead. I will connect a compliant live market data provider and build the streaming layer with reconnect and error handling. The interface will display bid, ask, last trade, volume, and cumulative ticks in an easy-to-scan layout. I will also add configurable filters for unusual size and volume spikes, with a structure that can be extended later. check our work https://www.freelancer.com/u/ayesha86664 Which live data provider or subscription do you currently have access to? Let me know if you’re interested & we can discuss it. Best Regards Ayesha

@codeandcommand

I can build the real-time price stream first, since that's the trickiest part of an Order Flow Radar. WebSocket feed per symbol, throttled updates so the UI doesn't choke on full market volume, PHP or Node on the backend depending on what you already run. Can start today, working version in 3 days. Budget and timeline here are starting points based on the post. Once we talk through which exchanges and symbol count you actually need, I'll firm up both. Want me to send a quick scope doc?

@manishashree12

Hello there, I can develop a high-speed "Order Flow Radar" that streams real-time prices for NYSE, NASDAQ, and AMEX symbols. By connecting to a reliable data source like IEX Cloud, I will display key market data in a user-friendly layout, enabling you to identify unusual size or volume spikes efficiently. I will ensure millisecond-level speed and reliable uptime during U.S. trading hours. If you have a moment for a quick screen-share, I can showcase a working prototype. Looking forward to discussing this further. Thanks,

@opeyemia615

>>>>> Hi there, <<<<< I’d build a lightweight Order Flow Radar (web or desktop) on a legal WebSocket feed such as Polygon or IEX - bids, asks, last, volume, and cumulative ticks in a fast scan layout, with filters/highlights for unusual size or volume spikes during U.S. hours. Source, setup guide, and a deploy path you can extend. Full three-exchange tape is feed- and plan-dependent; I’ll map that honestly against your budget so we don’t promise millisecond “every symbol” on a retail key that can’t carry it. Market-data UIs sit under NDAs; happy to screen-share a similar live quote grid after award (no public demo link). Question: Do you already have a Polygon/IEX/Tradier plan that includes the full NYSE/NASDAQ/AMEX universe, or should v1 start from a large watchlist while we confirm feed limits? Best regards, Opeyemi

@hamza1749

REAL TIME MARKET DATA, BUILT FOR SPEED. I can build the Order Flow Radar around a licensed real time market data feed, with the data layer designed for persistent WebSocket connections and efficient streaming rather than repeated polling. The interface can show bid, ask, last trade, volume and cumulative ticks across NYSE, NASDAQ and AMEX symbols, with configurable filters for unusual size and volume spikes. I’ll also keep the architecture modular so the market data provider can be swapped without rebuilding the entire application. I’ll handle the live feed integration, reconnection/error handling, responsive market display, filtering logic and deployment documentation, with performance testing focused on keeping the UI responsive during normal trading hours. Hamza.

@roman857

Hi, the difficult part is processing every symbol during market bursts without falling behind. Millisecond latency also needs a clear definition: feed arrival to processing, or exchange event to screen? My backend integration experience is relevant to handling streaming data, reconnects and keeping failures visible. From what I gathered, you need a live scanner showing bids, asks, trades, volume and cumulative ticks, with unusual activity highlighted immediately. We should also define how you want ticks counted. I'd separate stream processing from screen refreshes and confirm licensed market coverage before choosing the provider. At $30, I'd scope a small proof of concept using your existing data subscription; full-market reliability needs a larger scope. Do you already have a live-data subscription we can build against?

@copulas

Hello, I'm based in Japan, blending strong technical skills with Japanese discipline, punctuality, and attention to detail. I'll work efficiently to complete your project perfectly — and as quickly as possible. Expect clear communication, reliable delivery, and a deep commitment to quality. Let’s make it happen. Warmly Regards.

@mirimera

I’ve built real-time trading dashboards with WebSocket market feeds, including live quote grids and volume-alert workflows. For this project, the key is a WebSocket-first architecture with Polygon’s full-market feed because it keeps quote updates fast and avoids polling delays. I’ll build a lightweight web dashboard covering NYSE, NASDAQ, and AMEX symbols, showing bid, ask, last trade, volume, and cumulative ticks in a scan-friendly grid. I’ll add configurable filters for unusual trade size and volume spikes, plus clear buy/sell highlighting. The source code will include a practical setup guide and environment configuration. I’ll verify feed handling and alert latency during U.S. market hours. Thanks, Kittipong

@obademio1

Hi, hope you are well. I understand your project details. I will follow instructions and keep you updated. I am an experienced and specialized freelancer with 10+ years of practical experience in PHP, JavaScript, Python, Web Development, API Integration. Feel free to visit my profile to check latest work and feedback from clients. If you like my approach, please connect in chat. Regards, Olusoji

@muhammedusmank

Greetings, I've read through your project requirements, and it sounds like you're looking for a responsive "Order Flow Radar" that provides real-time pricing data for NYSE, NASDAQ, and AMEX stocks. My approach would involve connecting to a reliable data source like IEX Cloud or Polygon to ensure we have access to live quotes. I’d focus on creating a user-friendly interface that displays key metrics like bids, asks, and volume clearly, while also integrating functionality to highlight unusual volume spikes for quick identification of market movements. With my background in software development and API integration, I can build a lightweight application that achieves the speed and reliability you need during trading hours. I’m excited about the possibility of working on this project and can provide a quick setup guide for easy deployment. Best regards, Muhammad Usman Kamran