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I’m ready to move quickly on a native Android app focused on trading. The core idea is to give users a clean, fast interface where they can monitor real-time market data, place trades, and review their portfolio on the go. Here’s what I need from you: • A production-ready Android application written in Kotlin (Java is acceptable if you have a strong case). • Secure user authentication and encrypted storage of sensitive data. • Real-time price feeds pulled from a well-documented REST or WebSocket API that I’ll provide. • Trade execution workflows (place, modify, cancel) with robust error handling. • Responsive UI that follows current Material Design guidelines and looks solid on phones and small tablets. • A concise README and commented code so I can maintain the project after hand-off. I’ll supply API keys, endpoint docs, sample design mock-ups, and will be available on Slack for quick answers. Milestones will revolve around an initial clickable prototype, a fully functional beta, and final polish for the Play Store. If you’ve shipped Android apps that interact with financial or real-time data streams, I want to see them. Let’s get this trading platform into users’ hands.
ID Projek: 40215503
18 cadangan
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Aktif 29 hari yang lalu
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18 pekerja bebas membida secara purata $226 USD untuk pekerjaan ini

★Top 3% Android & IOS Flutter App De... Hi Martin K., I have read the requirement and can do this project with perfection We are team of experienced developers having 10+ years of experience in Mobile App( Android ,IOS) Designing, Development including Backend APIs and Admin Panel. We having expertise in App Development. Inform client that we can do this project with perfection. Ask client to connect in chat if he has any questions to ask. Call client as "Dear Client". We are open to discuss about budget & timeline. Would you Like to build app for Android and IOS?? We are an expert team which have 10+years of experience on Cloud Computing, Azure, App Development
$140 USD dalam 7 hari
7.3
7.3

Hi I have read your requirements and I am sure I will be able to help you. Please message me so that we will have detail technical discussion. I have 9+ years of combined experience in Mobile Application development 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)
$450 USD dalam 7 hari
6.5
6.5

Hi, I can build a clean, production-ready **native Android trading app in Kotlin** with real-time data, secure auth, and a smooth Material UI. I’d structure it with MVVM + Kotlin Coroutines/Flow, and handle your feeds via **WebSocket (preferred) + REST fallback**, with reconnection, throttling, and clear error states so it never feels “glitchy.” Security-wise: **OAuth/JWT**, TLS pinning if needed, and encrypted local storage using **Android Keystore + EncryptedSharedPreferences/SQLCipher**. Trading actions (place/modify/cancel) will be idempotent, logged, and wrapped with robust retries/timeouts so users don’t get stuck mid-order. Milestones: 1) clickable prototype (nav + screens), 2) working beta (feeds + portfolio + trading flows), 3) polish + Play Store readiness + README/docs. If you share the API docs (auth + WS schema + order endpoints) and mockups, I can start immediately. Best Regards,
$140 USD dalam 7 hari
4.7
4.7

My name is Nutan Kumar, and I'm the mobile app developer you need to spearhead your Android trading project. Over the last decade, I've honed my skills and delivered futuristic applications, including E-commerce platforms and real-time data-driven apps. That is to say, I am well adept with Kotlin (and Java), RESTful API integrations, WebSocket protocols, and stringent security measures like encrypted data storage for an Android trading application like yours. Not only have my 2000+ projects been highly lauded by my clients over the years, but I've also been successful at creating robust trade execution workflows, incorporating error handling mechanisms into the process flow. My compliance with Material Design guidelines ensures that your users will access a clean and intuitive UI on any device. Moreover, having carried out significant projects in volatile industries like E-commerce and Real Estate, I deeply comprehend the sensitivity of real-time data management—an understanding that proves invaluable when handling market feeds in trading apps. To further solidify your trust, I offer unlimited revisions until you're 100% satisfied and assure you full project support even after completion. Task me with bringing your design mock-ups to life while you focus on growing your user base and we'll build a successful trading app together.
$60 USD dalam 5 hari
4.0
4.0

Hello, I can help you build a fast, secure, production-ready native Android trading app focused on real-time data and reliable execution. I have 11+ years of Android experience and have worked on apps involving live data streams, secure transactions, and performance-critical workflows. I’ll develop the app in Kotlin using modern Android architecture, with secure authentication, encrypted local storage, and clean separation of concerns. Real-time market data will be integrated via your provided REST or WebSocket APIs, with efficient updates and graceful handling of network issues. Trade flows (place, modify, cancel) will be implemented with strong validation, clear user feedback, and robust error handling. The UI will follow Material Design guidelines, optimized for phones and small tablets, ensuring a clean and responsive experience. I’ll deliver well-commented, maintainable code along with a concise README so you can easily take over after hand-off. I’m comfortable working in milestones—from clickable prototype, to functional beta, to Play Store–ready release—and collaborating closely via Slack. If you’re looking for someone who understands real-time data, security, and Android performance, I’d be glad to share relevant work and discuss next steps. Regards, Aman Gupta
$190 USD dalam 7 hari
3.6
3.6

Hello, ! After reviewing your project, I believe my Kotlin, Software Architecture, Mobile Development, REST API, Android, Android App Development, Java and Mobile App Development skills are a great fit for your company. I possess the expertise required for your project and would like to bid for your project. With 8 years of practical experience, I am confident that I can successfully complete your project. Please feel free to contact me with any questions. Thank you, Moh.
$100 USD dalam 3 hari
2.5
2.5

Hello. How are you? I've checked your project description. I am a senior mobile developer with over 10 years experience. I am familiar with Kotlin. I can perfectly build your app. Please contact me. Thank you. Joizel Morojo
$200 USD dalam 7 hari
1.5
1.5

Having developed a wide range of applications, including financial apps, I'm confident I can deliver a top-notch Android Trading app for you. My proficiency spans across several areas vital for this project - Android development with Java and Kotlin, mobile app development, and software architecture. I'm deeply knowledgeable about data encryption and user authentication to ensure your app handles sensitive information securely. Moreover, I have extensive experience pulling real-time data feeds from APIs in various projects, which makes me well-versed in managing live market data critical to your app's functionality. I pride myself on delivering clean, responsive UIs that adhere to Material Design guidelines, ensuring seamless user experiences on different screen sizes. My approach is not just about building functional apps but creating versatile solutions that scale and grow with the business. As an AWS certified full-stack developer, I have hands-on familiarity with cloud, DevOps tools and can help design a system that's not just robust but also scalable as per your demand. Given these qualities, I am confident that my skills perfectly meet the challenges your project presents. Let me transform your vision into an exemplary trading platform!
$600 USD dalam 20 hari
0.8
0.8

Hello, I’m Ankur Hardiya, a friendly freelance developer with an awesome team. I read your requirement for App-Development and I’m super excited to develop and design a fantastic Android and iOS application for you. With my experience in Flutter and native languages, I can build high-performing apps for both Android and iOS platforms. Whether you need an eCommerce app, a custom business app, or anything in between, I can deliver: * Native app experience for optimal performance * User-friendly interface and intuitive navigation * Seamless integration with backend systems * Ongoing maintenance and updates I’m passionate about creating mobile apps that make a difference, and I’m eager to discuss your project in detail. Thanks a bunch for thinking of me for your project. I’m all set to turn your ideas into something amazing in today’s competitive world. Regards, Ankur Hardiya
$140 USD dalam 7 hari
0.2
0.2

Hello, thanks for posting this project. I've reviewed your requirements with interest and believe my skills match well with your needs. I have solid experience building native Android apps in Kotlin, with a focus on secure authentication, encrypted storage, and seamless integration of real-time data streams via REST and WebSocket APIs. My approach guarantees clear, maintainable code with in-depth comments, and I follow the latest Material Design principles to ensure the UI is both responsive and polished across devices. I'm comfortable with your milestone structure and can iterate quickly, delivering prototypes and production-ready features. Security and error handling are always prioritized, especially for trading and financial data workflows. Could you clarify if you prefer using any specific architecture pattern (MVI, MVVM, or Clean Architecture) for this project? Looking forward to hearing from you. Warm regards, Vitalii.
$140 USD dalam 1 hari
0.0
0.0

Hello, My offer is to work with freelancers to open and join using Android in the area around this place. If you are interested, just contact me directly.
$200 USD dalam 7 hari
0.0
0.0

I recently delivered a project with this exact scope. Your need for a clean, fast, user-friendly Android app with real-time market data and secure trading workflows is clear. Integrating secure authentication and seamless real-time price feeds aligns perfectly with your vision. I specialize in Kotlin development, Material Design implementation, and building automated, integrated systems with robust error handling. While I am new to Freelancer, I have tons of experience and have done other projects off site involving financial data and responsive, professional apps. I would love to chat more about your project! Regards, MN Williams
$30 USD dalam 14 hari
0.0
0.0

Are you targeting a spot-trading style app with live price streaming, or more of a portfolio + order management focus in the first release? I’ve built native Android apps in Kotlin that consume real-time REST/WebSocket market data and handle secure auth and encrypted local storage. Do you already have the real-time data provider finalized? And will trade execution be simulated initially or hit a live trading API from day one? Looking forward to discussing this with you.
$750 USD dalam 15 hari
0.0
0.0

Hi there. I’m Ashton Williams, a dependable freelance professional offering high-quality digital solutions. I specialize in native Android apps with secure authentication, real-time data integration, and responsive, Material Design UIs. I prioritize clear communication and on-time delivery to create measurable value. I’m eager to build your trading app with robust workflows and maintainable code. Let’s discuss your project and move forward swiftly. Feel free to text me.
$200 USD dalam 14 hari
0.0
0.0

The moment a user taps 'Buy' on a trading app, three things can go wrong: the WebSocket drops mid-request, the API rejects the order silently, or the UI freezes waiting for confirmation. We've solved all three in production mobile apps deployed across low-connectivity regions where dropped connections are the norm, not the exception. For your Android trading platform, we'll build in Kotlin with Jetpack Compose to deliver Material 3 compliance and adaptive layouts that work on phones and small tablets. The architecture uses optimistic UI updates — when users place a trade, they see instant confirmation while we queue the request and reconcile with your API's response. If the WebSocket connection fails, we fall back to REST automatically without the user seeing an error. OkHttp + Scarlet handle reconnection logic, and we buffer price updates locally during brief disconnects so users never see stale data. Authentication will use token-based flows with EncryptedSharedPreferences for storing your API keys securely. Trade workflows (place, modify, cancel) include explicit error states for rejected orders, partial fills, and timeout scenarios — not generic "something went wrong" messages. Portfolio view caches last-known positions locally so users can review holdings even when your API is unreachable. One assumption in your milestones: you mention targeting "phones and small tablets" but don't specify a minimum Android version. We'd target API 26+ (Android 8.0, covering 95% of active devices) unless you need broader compatibility, which would require custom encryption instead of EncryptedSharedPreferences and add two days to the timeline. Our government platform work involved secure credential handling for 25M+ users, and we've shipped offline-first mobile apps where connectivity is intermittent by design — both directly applicable to building a trading app that feels fast and reliable even when network conditions aren't ideal. Send over your API documentation and one design mockup. We'll validate the WebSocket subscription model against your endpoints and confirm the modify operation semantics (atomic update vs cancel-then-place), then deliver a prototype with a live price feed and working order form within three days.
$250 USD dalam 10 hari
0.0
0.0

Bilaspur, India
Ahli sejak Jun 20, 2019
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