Cross-Platform Real-Time Trading App

@Microlent

Hello, this is exactly the type of real-time financial application that requires strong architecture and low-latency engineering. A trading platform must prioritize speed, security, and reliable order execution from the first release. Proposed Stack • Mobile Apps: Flutter for high-performance cross-platform iOS and Android apps • Backend: Node.js with WebSocket services for real-time streaming • Database: PostgreSQL with Redis caching for ultra-fast data access • Market Data: Integration with providers such as Polygon, IEX Cloud, or Alpaca • Brokerage API: Alpaca, Interactive Brokers, or another supported brokerage • Charts: TradingView Charting Library or Lightweight Charts for real-time visualization • Security: OAuth2 authentication with encryption in transit and at rest Core Implementation • Sub-second live market data streaming using WebSockets • Real-time interactive charts with smooth updates • Secure account management with KYC flow • Buy/sell order execution with instant trade confirmation • Portfolio tracking and transaction history • Push notifications for trade updates and market alerts Deliverables • iOS and Android apps ready for TestFlight and Play beta • Secure backend and documented APIs Estimated timeline: 12-16 weeks depending on brokerage integration and compliance requirements. Let’s open the chat. I can outline the low-latency architecture and market-data pipeline before we proceed. Best, Jenifer

@mrresearcher99

Hi there, I’ve reviewed your Flutter app requirements and would love to help. With 5+ years of experience in cross-platform development, I specialise in clean UI, smooth performance, and robust API integration. I’ll begin with clear planning, share regular progress updates, and ensure the app is fully tested before launch. Let’s connect to discuss your vision — I’m ready to get started! Best, Bhargav Flutter Developer | Android & iOS Expert

@kamran2012

Hello, I will build your trading app in Flutter with live price streaming via WebSocket, interactive charts, buy/sell order execution wired to your chosen brokerage API, and secure account management covering sign-up, KYC, portfolio view, and transaction history. The backend will handle OAuth2 authentication, push notifications, and data caching, with the full codebase documented in Git for your in-house team. For sub-second latency on 4G, I will maintain a persistent WebSocket connection with automatic reconnection logic and cache the last known price state locally, so the app displays data instantly on resume rather than waiting for a fresh handshake. This also keeps the UI responsive during brief network drops. Questions: 1) Do you have a brokerage API in mind? 2) For the interactive charts, do you need advanced indicators like MACD and RSI, or are candlestick and line charts sufficient for the first release? Let us discuss via chat. Best regards, Kamran

@ciss26

Hello, I hope you are doing well. I understand that you are looking to build a REAL TIME TRADING 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.

@pinkeegupta

Hi I have read your requirements and I am sure I will be able to help you in your trading App. Please message me so that we will have detail discussion. I have 9+ years of combined experience in Mobile Application development, Website development, Desktop application development, 3rd party Artificial Intelligence api, AR/ VR, Chatbot, Blockchain- Cryptocurrency, CRM & ERP, Game Development and any other Software development. I am having expertise in Native on Android Java, kotlin and IOS Swift, and For Hybrid Cross platform on Flutter Dart & React- Native and for web and backend on react js and node js, Python Django , java spring boot and php CodeIgniter mvc. Please consider me and initiate a chat for further detailed discussion. Regards, Anju Logical Soft Tech Pvt Ltd, Indore(M.P)

@vipinjain1213

Hi, This is a serious build, and for a real-time trading app the biggest priorities are speed, execution reliability, and rock-solid security from day one. IWe would approach this by designing a high-performance architecture with real-time streaming via websockets, low-latency chart rendering, and a stable order-execution flow tightly integrated with your brokerage API. The mobile apps would be built for responsiveness and clarity while the backend handles authentication, caching, notifications, and portfolio sync without delays. The focus would be sub-second market updates, fast trade confirmations, and secure handling of KYC and financial data across both platforms. Clean structure, testing, and scalability would be part of the build from the start so your in-house team can extend easily after handover. We can define milestones around data streaming, trading flow, and beta readiness. A strong production-ready first version would typically take around eight to ten weeks depending on integrations. We can start immediately — I will ensure clear, daily communication and fast turnaround. You’ll always know the exact progress. Lets connect over chat and discuss the timeline.

@TechizeBuilder

Hi, I came across your project "Cross-Platform Real-Time Trading App" and I'm confident I can help you with it. About Me: I'm a agency owner with over 8+ years of experience in Mobile App Development, React Native, Flutter, Android, iOS Development, iPhone. , and I understand exactly what’s needed to deliver high-quality results on time. Why Choose Me? - ✅ Expertise in required Technologies and 1 year post deployment free support - ✅ On-time delivery and excellent communication - ✅ 100% satisfaction guarantee Let’s discuss your project in more detail. I’m available to start immediately and would love to hear more about your goals. Looking forward to working with you! Best regards, Deepak

@kishanbwts

I’ve built a trading app for a fintech startup where real-time price updates and order execution had to be fast and reliable on mobile. We used React Native with websockets for live data and integrated a brokerage API for instant trades, keeping latency below 1 second on 4G. I handled secure account management with OAuth2 and encrypted storage to protect user data. For charts, I recommend something lightweight like TradingView’s library or an open-source React Native option to keep updates smooth. Which brokerage API are you planning to use? Some require specific auth flows we should confirm early. Also, do you want push notifications for trade confirmations and market alerts built into the first release? I’ll create clear APIs between front-end and back-end so your team can maintain or extend later easily. Testing will cover critical flows to meet your 80% coverage target without slowing development. Ready to start defining milestones and get this working in TestFlight and Closed Beta quickly.

@santoshkumars17

Having built numerous mobile applications with a focus on real-time data and trading functionalities, I can confidently say that I am the best fit for your project. My five years of experience span full-stack development including frontend, backend, and database management which means I can handle every aspect of your cross-platform trading app. Particularly with React Native, I've created performant applications known for their sub-second latency in market-data streaming and speedy execution of orders - both requirements for your project. Not only do I tick the technology skill boxes required for this venture such as websockets, OAuth2, and real-time charting libraries but I have an in-depth understanding of finance and brokerage services as an added advantage to ensure compatibility with your preferred services. I value efficient and clean coding that is well-documented and easily transferable - something your in-house team will appreciate upon handoff. Moreover, my on-time delivery record paired with clear communication channels ensures the milestones and timelines we establish today are executed without complications tomorrow

@Kishoreindia

Dear Sir/Madam, I am Kishore Patidar, a professional Mobile App and Python Developer with strong experience in building scalable, production-ready mobile applications and backend systems. I specialize in Flutter (cross-platform), Android (Java/Kotlin), Firebase, Supabase, Node.js, FastAPI, and Django. I have successfully delivered multiple live apps on both Google Play Store and Apple App Store, including fintech, healthcare, education, social networking, and on-demand service platforms. My expertise includes: • Cross-platform mobile app development (Flutter) • Backend API development (Node.js, FastAPI, Django) • Payment Gateway integration (PhonePe, Razorpay, Stripe) • Real-time chat & notification systems • Admin panel & dashboard development • App deployment & store publishing • Secure authentication & role-based systems I focus on clean architecture, scalable backend design, optimized performance, and smooth user experience. From idea to deployment, I can handle complete end-to-end development. I would be happy to discuss your project requirements and deliver a reliable, high-quality solution within timeline. Looking forward to working with you. Best Regards, Kishore Patidar Mobile App / Python Developer

@bpatidar2793

I understand you want to build a high-performance real-time trading application where users can monitor live market movements and execute trades instantly on both iOS and Android. With extensive experience developing real-time data platforms, I can build the system using a scalable architecture with Flutter or React Native for the mobile apps and a robust backend handling authentication, caching, and websocket streams for sub-second market data updates. The platform will integrate with a reliable brokerage API for order execution, implement secure OAuth-based authentication, encrypted storage, portfolio tracking, and push notifications. I will ensure low latency, clean documented code, and comprehensive testing so the apps are ready for TestFlight and Play Store beta deployment.

@DigitalNightOwl8

Hello there , Good afternoon! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Android, iOS Development, Mobile App Development, iPhone, PhoneGap, React Native, OAuth and Flutter. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Thanks for giving opportunity

@RajAbhisek

Hi, I'm Raj, a developer who has built several real-time trading and fintech apps on both iOS and Android. I've worked with live stock feeds using websockets, integrated multiple brokerage APIs, and built interactive charts with sub-second latency. I'm comfortable with both native development (Swift and Kotlin) and cross-platform approaches like React Native and Flutter, depending on what works best for your timeline and maintenance needs. Authentication, push notifications, data caching, encrypted storage—I've handled all of this in production apps. For your first release, my approach is straightforward: build the mobile UI clean and performant, wire up the real-time data feeds properly to hit your latency targets, integrate the brokerage API for instant order execution, and set up solid backend services for auth and notifications. I'll make sure the code is well-documented and lives in Git so your team can take it forward easily. Testing is built in from the start in the form of unit and integration tests as we go. Let's jump on a quick chat to talk through your brokerage API preference, timeline, and any specifics about the data feeds you want to use. Raj Abhisek Panda

@UzeeTech

With extensive experience as a Full-Stack Developer for 9+ years, I'm well-versed in what it takes to create and launch high-performance, cross-platform applications efficiently. I have hands-on expertise with various mobile app frameworks, including Flutter and React Native, the use of which aligns perfectly with your project's needs. Given the demand for real-time data streaming in trading apps like the one you're envisioning, my background with websockets and real-time charting libraries will be invaluable. Furthermore, having delivered numerous projects that are both complex and time-critical, I understand the significance of clean coding practices and prompt execution when it comes to financial applications. I utilize automated testing For instance, our code coverage policy aligns with your requirement of at least 80% - ensuring a reliable application that passes through App Store & Google Play review seamlessly while satisfying all acceptance criteria. Apart from technical competence, my clients also value my commitment to quality, performance, security. These aspects are fundamental to finance and trading applications and I've always set up robust systems that safeguard user information. With everything from encryption to authentication to push notifications being of utmost importance in a trading app like yours, rest assured that I've got you covered. Let's turn your fascinating concept into a masterpiece!

@KarthikTechCon

Hello, I’m Karthik, a full-stack developer with 15+ years of experience building scalable fintech and real-time mobile applications. I can develop your cross-platform trading app for iOS and Android with a strong focus on speed, reliability, and secure transactions. I’ll build the app using Flutter/React Native with a robust backend (Node.js/Python) and WebSocket-based real-time data streaming to achieve sub-second market updates. Features will include live price charts, secure user accounts, KYC, portfolio tracking, and instant buy/sell execution via brokerage APIs (Zerodha, Alpaca, IB, etc.). The solution will include OAuth2 authentication, encrypted data storage, push notifications, and scalable infrastructure. Code will be clean, documented, and delivered via Git, with unit/integration tests (80%+ coverage). I will also support TestFlight and Google Play closed-beta approval. I have prior experience building real-time finance dashboards and trading platforms, ensuring stable performance even during high market activity. Let’s discuss your preferred brokerage/data provider and milestones to move quickly toward launch. Best regards, Karthik 15+ Years | Mobile & Fintech Development

@techsty2014

Hi there, Our team has shipped real-time financial apps where latency and reliability are non-negotiable. I will deliver the full trading app in Flutter covering live price feeds, interactive charting, instant order execution, secure authentication with OAuth2, portfolio and transaction views, push notifications, and a documented Git repo ready for your in-house team to take over. I will architect the backend with a message queue between the brokerage API and the app layer so order confirmations are never lost during high-volume trading windows. If the brokerage response is delayed, the queue holds the confirmation and delivers it the moment the connection recovers, rather than silently dropping it. There are a few decisions that will shape the architecture early: which stock exchange or market are you targeting, since that determines the brokerage and data feed options? Also, do you need the app to support limit and stop orders in the first release, or just market orders? And will your in-house team handle App Store and Play Store submissions, or should I manage that through TestFlight and closed beta? Looking forward to discussing further. Best regards, Faizan.

@rajmalviyamalviy

Hello, I saw your job description well. I can help you to create a Cross-Platform Real-Time Trading App as per your need. * I am familiar with android/IOS applications for both native and hybrid apps. I have 6 years of experience on mobile applications ( Android +iPhone/ iPad ) and App admin with development web services where admin can manage the app from the back end, I have developed the TAXI apps, google map, Event App, Job Portal App, Restaurant App, Dating App, Social chat with video calling and other apps with clients need I will never disappoint you in terms of quality of work, deadline, and communication. Let discuss about the project, budget and timeframe in chat box Thanks, RajM

@bskreddy1990

As a seasoned software engineer with over a decade of experience, my skills and knowledge would be invaluable in delivering your vision for a seamless cross-platform stock trading app. I not only possess expertise in multiple programming languages including Swift, Kotlin, Flutter, and React Native but also understand the need for speed, reliability, and security that you have aspired for. This makes me perfectly suited to handle the demanding challenges of incorporating live stock prices, interactive charts, immediate buy/sell order execution into your app while ensuring tight integration with reputable brokerage APIs and robust security measures. My familiarity with websockets, OAuth2 and real-time charting libraries combined with my capabilities in developing clean, efficient code will guarantee an app experience that's second to none- Market-data latency under one second on 4G & trade execution status reflected within two seconds. You can be assured of one-stop accountability as I would be responsible for UI design, both iOS and Android mobile front-end development as well as setting up any necessary supporting back-end elements.

@rainbowarts

Hello, I’m a Mobile App Developer with experience building real-time, data-driven applications for both iOS and Android using Flutter and React Native, along with scalable backend systems. Technical approach for this trading app: Real-time market data: WebSocket-based streaming to deliver sub-second price updates and synchronize interactive charts using libraries like TradingView / lightweight-charts. Order execution: Secure integration with brokerage APIs (e.g., Alpaca, Zerodha Kite, or Interactive Brokers) with fast buy/sell execution and real-time order status updates. User system: Secure OAuth2 authentication, KYC workflow, portfolio tracking, and full transaction history management. Architecture: Mobile: Flutter / React Native for cross-platform performance Backend: Node.js or Firebase with WebSocket services for real-time events Database: PostgreSQL / MongoDB with caching via Redis for low-latency data access Security: End-to-end encryption, secure token management, and compliance with App Store / Play Store financial app guidelines. I will ensure <1s market data latency, fast trade confirmation, and clean, well-documented code with proper testing coverage for smooth handover to your internal team. Best regards, Shailendra!