Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:

  • Developing custom GUIs for existing codebases
  • Creating encrypted, secure crypto apps
  • Designing cross-platform audio merging tools for mobile devices
  • Building sophisticated trading bots for the cryptocurrency market
  • Implementing open-source virtual machines in C
  • Collaborating as senior developers on large-scale Android projects
  • Solving server request errors for mobile applications
  • Running and optimizing code from Git repositories
  • Designing and implementing web services for seamless integration

Hiring Java Developers on Freelancer.com gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on Freelancer.com today!

From 245,234 reviews, clients rate our Java Developers 4.9 out of 5 stars.
Hire Java Developers

Java is a versatile, object-oriented programming language that is widely used for software development across various industries. Java Developers can help clients create anything from complex web applications to automated trading bots and mobile apps. With their advanced skills and knowledge, they can turn your vision into reality, providing you with tailored solutions that align with your business goals. Here are some recent projects that our expert Java Developers made real:

  • Developing custom GUIs for existing codebases
  • Creating encrypted, secure crypto apps
  • Designing cross-platform audio merging tools for mobile devices
  • Building sophisticated trading bots for the cryptocurrency market
  • Implementing open-source virtual machines in C
  • Collaborating as senior developers on large-scale Android projects
  • Solving server request errors for mobile applications
  • Running and optimizing code from Git repositories
  • Designing and implementing web services for seamless integration

Hiring Java Developers on Freelancer.com gives you access to a global pool of talented professionals who can deliver high-quality solutions tailored to your needs. Our platform makes it easy and convenient to find, hire, and collaborate with skilled Java experts from around the world. So why wait? Bring your ideas to life by posting your own project and hiring a Java Developer on Freelancer.com today!

From 245,234 reviews, clients rate our Java Developers 4.9 out of 5 stars.
Hire Java Developers

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    I already have a fully-built Android package in both APK and AAB formats and my Google Play Console developer account is active. All I need now is for the app to go live. Your task is straightforward: upload the provided builds, fill in the mandatory store details I supply (title, short & full description, screenshots, category, privacy policy link, etc.), set distribution only to the specific countries I’ll list, run the pre-launch report, and start a production rollout that passes Google’s review on the first attempt. No additional listings or promotional work is required. Deliverables • App published and visible on Google Play in the agreed countries • Play Store link and console screenshot showing “Live” status • Any policy feedback ad...

    $21 Average bid
    $21 Avg Bid
    34 bids

    I’m ready to turn my concept into a fully-functioning Android application and am looking for a developer who can guide it from first commit to Play Store release. The job is end-to-end Android app development: architecture, coding, testing, and deployment. I will share the feature list, screen mock-ups, and brand assets; you bring the technical expertise in Kotlin or Java, modern Android SDK practices, and a keen eye for smooth UX on the latest OS versions. Deliverables • Complete, well-commented source code • Debug and release APK/AAB builds, Play Store–ready • Brief build & setup documentation Once we agree on milestones, I’ll be responsive with quick feedback so the project keeps moving. Let me know your relevant apps, preferred libraries, ...

    $11 / hr Average bid
    $11 / hr Avg Bid
    90 bids

    I’m building an Android entertainment app and need a developer who can take it from concept to a polished release on Google Play, complete with in-app purchase capability. Because the core focus is entertainment—think light, engaging experiences similar to casual games or media hubs—the purchase flow has to feel native and friction-free. Here’s what I expect: • A Kotlin- or Java-based Android project that targets the current API level. • Google Play Billing integrated and ready for the range of products we decide on together (I’m open to consumables, non-consumables, or subscriptions once we map the revenue model). • A clean UI that follows Material guidelines, responsive across common phone and tablet sizes. • Source code stored i...

    $15982 Average bid
    $15982 Avg Bid
    62 bids

    I want to integrate a production-ready AI conversational booking assistant into my existing UK courier platform. Customers should be able to complete an end-to-end quote and booking through a natural real-time chat interface without using the traditional booking form. The existing platform already contains the booking flow, pricing engine, address lookup and the relevant APIs. The objective is not to rebuild this functionality, but to add an intelligent conversational layer on top of it. The assistant should understand natural customer requests, extract information already provided, maintain conversation state and ask only for genuinely missing information. For example: “I need a Luton tomorrow from Birmingham to Manchester with a stop in Stoke.” The assistant should under...

    $1418 Average bid
    $1418 Avg Bid
    347 bids

    I need an experienced Android developer to turn my idea into a polished Google-Play-ready app that includes seamless in-app purchase capability. Here’s the core of what I already know: the project will target Android only, and in-app purchases are essential for monetisation. Beyond that, I’d like your expertise to refine the overall feature set, suggest the right architecture, and outline any additional services (analytics, crash reporting, cloud back-end, etc.) that will make the app scale smoothly. What I expect from you • A short discovery session to translate my high-level concept into a detailed technical brief. • Implementation of Google Play Billing (latest library) with secure purchase validation. • Clean, maintainable Kotlin/Java code, fully co...

    $72 / hr Average bid
    $72 / hr Avg Bid
    57 bids

    We need a freelance developer to build a WhatsApp-native appointment booking system for beauty salons and hairdressers. Customers book entirely by chatting to the salon's WhatsApp number — choosing a service, day and time, with the bot checking real-time availability and confirming only genuine open slots (no double-bookings). Salons manage everything — hours, staff, services, and bookings — from a simple web dashboard, and get notified instantly when a booking lands. The stack is WhatsApp Business Cloud API (direct with Meta, no reseller), n8n for the automation/backend logic, and PostgreSQL for the database, all self-hosted on free-tier cloud infrastructure — full technical spec is attached. The build must be multi-tenant from day one (so adding salon #2, #1...

    $187 Average bid
    $187 Avg Bid
    215 bids

    We are looking for an experienced Full-Stack Developer to build a lean MVP for a B2B SaaS product that combines AI with business data. The application will allow business users to ask questions about their sales data in natural language and receive answers, insights, tables, and simple charts. MVP Technology Stack - for the frontend - Python / FastAPI for the backend - PostgreSQL for SaaS configuration and metadata - Microsoft SQL Server as the initial customer data source - LLM/API integration for natural-language-to-SQL generation and data interpretation MVP Scope The initial product should include: - User authentication - Simple conversational chat interface - Secure, read-only SQL Server connectivity - Semantic mapping of sales and business fields - AI-generated SQL with strong saf...

    $480 Average bid
    $480 Avg Bid
    307 bids

    MediaTek MT8168 Custom Android ROM Installation & Technical Support I’m looking for an experienced Android/MediaTek developer who can provide step-by-step technical guidance for installing or porting a fully functional custom Android ROM to a MediaTek MT8168-based tablet. The tablet currently has a restricted Android installation, and my goal is to replace it with a clean, stable, fully functional Android version that is properly configured for the device hardware. I am currently working with the tablet in its original, unrooted Android state. I do not have root access at this time, so I will need guidance on the appropriate process for gaining the necessary access and preparing the device for the ROM installation. If I need a rooted state or a Linux environment, that can be ...

    $1041 Average bid
    $1041 Avg Bid
    137 bids

    I need a skilled Android developer to turn my concept into a fully functional mobile app. The project is strictly for the Android platform—no web or desktop versions are required for now. At this stage the core idea is defined, but I’m still finalising the feature set, so I’ll rely on your expertise to translate high-level requirements into an intuitive UI, solid architecture, and clean code. You should be comfortable working in Android Studio with Kotlin or Java, integrating standard Android SDK components, and advising on best practices for performance, security, and Play Store compliance. I’ll provide a high-level workflow and rough wireframes; you’ll refine them, implement the app, and keep me in the loop through frequent builds. Deliverables &b...

    $98 Average bid
    $98 Avg Bid
    62 bids

    I want a small Android app that lives entirely on the device, creates its own local SQLite (or Room) database the first time it runs, and then lets me populate that database by speaking. Using Android’s built-in voice recognition, the user taps a mic button, dictates a short text entry, and the app turns that speech into a new text record. No internet access should ever be required for either storage or recognition. Because the data belongs to the user, the app also needs a simple way to move the database to another phone or tablet. A “Share database” option that packages the file and sends it over Bluetooth, AirDrop-style sharing, email, or any other standard Android share intent will work. On a receiving device, the user should be able to import or merge the file and k...

    $144 Average bid
    $144 Avg Bid
    113 bids

    Python Flask work Needed and integrated with mobile app in android java from Pakistan or India at low budget we need new freelancer

    $6 / hr Average bid
    $6 / hr Avg Bid
    78 bids

    I’m looking to turn a business idea into a streamlined Android application that will help drive growth. The core objective is to build a functional, polished app for the Google Play ecosystem that aligns with our business goals—think clean UI, smooth performance, and features that make it easy for users to engage and ultimately convert. Here’s what I need from you: • A complete Android app built with stable, modern frameworks (Kotlin or Java—whichever you’re most comfortable with). • Intuitive user interface and navigation focused on a great customer experience. • Basic analytics integration so we can track usage and measure growth. • Fully commented source code, an installable APK, and brief hand-off documentation explaining how to ...

    $18 / hr Average bid
    $18 / hr Avg Bid
    118 bids

    I have a fully-functioning Android application that now needs a round of feature enhancement. The existing code compiles and runs, but I want fresh capabilities added and, while we are at it, a careful verification of the current implementation to be sure no hidden issues slip through. Here is what I need you to do: • Make application compatible to Latest Android version • Verifying issue • Bug Fixes • Supply an updated APK, source commit, and concise change log so I can track exactly what was done. Automated unit tests for the new code are expected. Acceptance criteria 1. Project builds without errors in the latest stable Android Studio. 2. All agreed functionalities work on Android 8.0+ devices. 3. No critical or high-priority warnings in Lint or Play Cons...

    $79 Average bid
    $79 Avg Bid
    50 bids

    I need a native Android mobile application built from scratch and taken all the way to a Play Store–ready release. Core features for the first version are: • Secure user authentication / sign-in • Push notifications (Firebase Cloud Messaging is fine) • In-app purchases using Google Play Billing You are free to use Android Studio with Kotlin or Java—whichever you work fastest in—so long as the code is clean, well-commented, and easy for another developer to pick up later. Deliverables – Compiled APK/AAB ready for internal testing and final production upload – Complete, organized source code in a Git repository – Brief setup README covering build steps, key libraries, and how to configure the notification and purchase servic...

    $253 Average bid
    $253 Avg Bid
    117 bids

    I'm seeking a talented mobile app developer to help create a dynamic social networking application for Android, focusing on photo sharing capabilities. Core Requirements: - Design and implement a user-friendly Android social networking application. - Integrate a robust photo sharing feature. Ideal Skills and Experience: - Proficient in Android app development. - Prior experience in developing social networking applications. - Strong design skills to create intuitive user interfaces. - Understanding of photo sharing features and how to implement them effectively.

    $6833 Average bid
    $6833 Avg Bid
    71 bids
    Android Studio Bug Resolution
    5 days left
    Verified

    I installed Android Studio on a laptop running Windows 10. I then created a new app with a Blank Activity, set up a virtual device (AVD), and tried to run the app. However, I am getting the following error:

    $4 / hr Average bid
    $4 / hr Avg Bid
    52 bids

    I need a simple, lightweight Android app that lets any of my staff snap a photo of a purchase receipt the moment the transaction is complete. The flow should be: open the app, point the camera, tap once, and the image is automatically cropped for a clean edge-to-edge view of the receipt. Immediately after capture the app must generate an email—pre-addressed to our office accounting inbox—and attach the cropped image (JPEG or PNG is fine). No files should be stored on the device once the email is successfully queued or sent. Before the email is sent, there needs to be a text box pop up so a freetype reason for purchase can be entered and that text is included in the email Minimum deliverables: • Signed release APK ready for side-loading • Clean, well-commented so...

    $102 Average bid
    $102 Avg Bid
    188 bids

    I need an AI-driven recommendation system that studies on-site user behavior and serves up relevant products and content in real time on my website. The core job is to design, train, and deploy a model that can interpret click-stream, dwell-time, and purchase history data, then return ranked suggestions through an easy-to-call API or directly inside the site’s codebase. Here is what success looks like to me: • A behavior-based algorithm (collaborative, content-based, or hybrid—you can advise on the best fit) developed in Python using libraries such as scikit-learn, TensorFlow, PyTorch, or a framework you prefer. • A lightweight service—REST or GraphQL—that exposes “getRecommendations(user_id)” so my front-end team can drop it straight into...

    $104 Average bid
    $104 Avg Bid
    49 bids

    Android Parental Control App Developer Needed I am looking for an experienced Android developer to build a Family Parental Control & Device Management App. Main Features: - Live GPS location tracking - Screen time & app usage monitoring - App blocking/unblocking - Remote device lock - Permission-based camera & microphone access - Permission-based gallery/photo/video access - Real-time screen sharing - Call/activity monitoring where supported - Parent dashboard with multiple devices - Real-time notifications and reports The app should include a Parent App/Dashboard, Child Device App, and secure backend. All sensitive features must use proper Android permissions and user authorization and comply with applicable Android/Google Play policies. Developer Requirements: - Strong...

    $213 Average bid
    $213 Avg Bid
    122 bids

    I’m putting together a cross-platform mobile application that will run natively on both iOS and Android. To move the project forward I need a single developer (or a tightly-knit duo) who is equally comfortable building the UI in React Native and crafting a robust Java Spring Boot back end. The current project notes list “For Mobile Application Tech team” under required features; I’ll walk you through the product vision and we can refine the final feature set together during our first sprint-planning call. What I do know is that the app must feel fully native on each platform, share a single codebase wherever possible, and communicate with a secure, well-documented REST API you will also build. Key expectations • Set up the React Native project, implement sc...

    $96 Average bid
    $96 Avg Bid
    45 bids

    We have some AI, Flask tasks and with Mobile app needed in java, android studio from Pakistan or India new freealncer for some easy work

    $7 / hr Average bid
    $7 / hr Avg Bid
    53 bids

    I’m ready to have a full-featured web application built that focuses on e-commerce. The core of the project is straight-forward: a clean, responsive storefront where customers can browse products, add them to a cart, and complete secure check-out. I’m open on the tech stack as long as it’s mainstream, well-documented, and future-proof, so feel free to propose what you’re most comfortable with—whether that’s a JavaScript framework like React or Vue paired with Node.js, or a Python/Django or PHP/Laravel back end. Key elements I need: • Robust product and inventory management • User-friendly shopping cart and checkout flow • Secure payment gateway integration (Stripe or similar) • Admin dashboard for order tracking, refunds, and ...

    $163 Average bid
    $163 Avg Bid
    264 bids

    I currently have a website that does not require user authentication or sign-in. I have also developed an Android app that similarly does not support user sign-in or authentication. Before proceeding with the Android app deployment to the Google Play Store, I am considering implementing a sign-in system so that users can create accounts and access personalized features across both the website and the mobile app.

    $11 / hr Average bid
    $11 / hr Avg Bid
    114 bids

    I need a clean, well-optimised Minecraft item model produced in Blockbench for the Java Edition. The mesh should stay within vanilla-style proportions so it feels right in-game, but I still want just enough extra detail to make it stand out in a resource pack. You’ll handle both the model and its texture, keep the poly count sensible for Java, and export a ready-to-use .json together with the .bbmodel source so I can tweak it later if I need to. Deliverables: • Finished Blockbench (.bbmodel) file • Associated texture PNG • Exported item .json configured for Java Edition As long as you’re comfortable with Blockbench and familiar with Minecraft’s item rendering conventions, this should be straightforward. Just let me know your timeframe and any examp...

    $48 Average bid
    $48 Avg Bid
    39 bids

    I need a lightweight Android Accessibility Service that silently accepts incoming ride requests inside the Ola Driver app. The service must: • Detect the ride-request pop-up and perform a single, human-like tap on the accept button. Tap coordinates and delay have to vary a little on every press so the behaviour looks organic. • Stay active only while the Ola Driver app is in the foreground and I am online; it should pause automatically when I switch the app offline. • Run unobtrusively in the background, start on boot if possible, and ask for the minimum permissions required. Deliverables • Installable APK plus complete Android Studio project with clean, well-commented source. • Step-by-step guide showing how to enable and test the Accessibility Service. ...

    $213 Average bid
    $213 Avg Bid
    28 bids

    I need a single Android application that seamlessly blends three experiences: a full-featured shopping portal, a robust bill-payment hub, and a stored-value wallet. For the wallet, real money movement is essential. Users must be able to add funds straight from their bank accounts and through a payment-gateway top-up flow, see every credit or debit in a clear transaction history, and send money to other users instantly. The shopping side should feel like any modern e-commerce app: a browsable product catalog, an intuitive cart (with quantity edits and promo-code entry), and a wishlist that persists across sessions so shoppers can save items for later. When a user checks out, the wallet balance should appear as a payment option alongside any external gateways. Bill payments should f...

    $82 Average bid
    $82 Avg Bid
    51 bids

    I need a complete Android-native marketplace app built from the ground up. The goal is to let multiple vendors list products while customers browse, purchase, and track orders in one seamless experience. Scope • Plan and refine the overall user flow for buyers and sellers. • Design an intuitive, modern UI that follows current Material Design guidelines. • Build core marketplace modules: product catalog, vendor dashboard, cart and checkout, order management, and basic analytics. • Implement a clean, well-documented REST or GraphQL API so the mobile front-end remains fast and future-proof. • Include an admin panel (web or mobile) where I can onboard vendors, approve listings, run promotions, and review transactions. • Provide full source code, build...

    $10 / hr Average bid
    $10 / hr Avg Bid
    61 bids

    I want a complete Chess game built in Android Studio with clean, well-commented code so that I can study and extend it later. The project must implement every official rule of chess: legal piece movement, check and checkmate recognition, castling (both sides), pawn promotion to any major piece, and the ability to undo the last move. The look and feel should follow a classic user-interface style, pairing naturally with a traditional wooden board and pieces. While I prefer that timeless aesthetic, the architecture should be flexible enough that I can swap in alternative themes later if I choose. Gameplay has to feel smooth and professional. Fast, responsive touch controls are essential, and performance should remain solid even on older Android devices. Subtle animations are welcome as lo...

    $460 Average bid
    $460 Avg Bid
    87 bids

    I need an experienced developer to take a deep look at my Android application and the server calls that power it, then tune both sides so the user experience feels instant and light. Right now the app shows occasional frame drops, long cold-start times, and higher-than-expected RAM usage. I want measurable gains in speed and responsiveness without sacrificing stability, plus a clear reduction in memory footprint. What you’ll actually do • Profile the APK with Android Studio Profiler, Systrace, and (if you prefer) tools such as Firebase Performance or LeakCanary to isolate hot paths and leaks. • Review the API layer and suggest tweaks—batching, caching, pagination, or server-side query changes—so network latency no longer blocks the UI thread. • Refac...

    $77 Average bid
    $77 Avg Bid
    34 bids

    Someine that can create or generate FL Coins USDT with software or online tools to send .. Seasoned crypto software developer with deep expertise in blockchain architecture, smart contract development, DeFi protocols, and secure Web3 infrastructure. Skilled in building scalable decentralized applications (dApps), integrating multi-chain solutions, and developing high-performance backend systems using Solidity, Rust, Go, and TypeScript. Strong focus on security, protocol optimization, and delivering production-ready blockchain solutions for startups and enterprise platforms.

    $64 Average bid
    $64 Avg Bid
    33 bids

    I’m building a new phone and my top priority right now is the Android software. Specifically, I need a fully-functional custom user interface that can be flashed onto the device and demonstrated on current Android hardware. The UI should: • Replace the stock launcher and system theme with a distinctive visual identity that matches the industrial design of the phone • Run smoothly on the latest AOSP release and remain compatible with upcoming versions • Include core screens (home, app drawer, notification shade, quick settings, settings menu) with fluid animations and Material-next styling • Support essential Google Mobile Services integration so standard apps behave normally Deliverables 1. Source code (Kotlin/Java with Android Studio or compatible b...

    $246 Average bid
    $246 Avg Bid
    42 bids

    Our product team in Hyderabad is ready to onboard a fresh graduate who can take full-stack responsibility for completely new application development, combining Java + Spring Boot on the server side with React on the client side. Day-to-day you will design RESTful endpoints in Spring Boot, wire them to a clean React interface, write unit tests, and commit everything to Git with well-documented pull requests. Skills to bring: • Solid academic grounding in core Java concepts and object-oriented design • Hands-on familiarity with React. If you are a Hyderabad-based fresher excited about owning features end-to-end in a collaborative, small-team environment, I look forward to working together.

    $122 Average bid
    $122 Avg Bid
    28 bids

    I have a concept tentatively called “From 100 t” that I want turned into a fully functional Android application. The idea is still at an early stage, so I’m looking for someone who can guide the entire mobile build-out—from defining a clean architecture to publishing a polished APK on Google Play. Your role will cover: • Designing an intuitive, modern UI that scales well across current Android OS versions • Writing maintainable, well-documented Kotlin or Java code (your call, just explain your choice) • Integrating any required APIs or back-end endpoints once the scope is clarified • Supplying a release-ready build plus full source code and concise setup instructions If you’ve shipped Android apps before, please share Play Store l...

    $262 Average bid
    $262 Avg Bid
    73 bids

    Mobile app needed in java, android studio with AI work of Python from Pakistan or India new freealncer for some easy work

    $5 / hr Average bid
    $5 / hr Avg Bid
    48 bids

    I need my existing Android mobile application refreshed so it runs smoothly on today’s phone models. This is strictly an update project—no full rebuild—so you’ll be working with the current codebase. What I expect: • Analyse the present Android project, migrate it to the latest stable SDK, and resolve any deprecated APIs that affect phone performance. • Update layouts and resources so screens scale properly across modern resolutions and aspect ratios. • Eliminate crashes or warnings flagged by Android Studio and the Play Console, delivering a clean release-ready AAB/APK. • Push all changes to my Git repository with clear commit messages. Acceptance criteria 1. The new build installs and functions without crashes on Android 8.0 through...

    $19 / hr Average bid
    $19 / hr Avg Bid
    140 bids

    I need a polished, production-ready Android application focused entirely on e-commerce. The core requirement is a smooth buying journey—from browsing products, adding items to a cart, and completing a secure checkout, through to receiving order confirmations and basic status updates. The app must be native for Android (Kotlin or Java are both fine) and follow current Material Design guidelines so it feels at home on modern phones and tablets. I already have product data and imagery prepared; what I need is the technical build, an intuitive UI/UX, and connection to a payment gateway such as Stripe or Razorpay. Please include: • Clean, well-commented source code hosted in a private Git repository • A fully signed, Play-Store-ready APK or AAB • Simple admin or...

    $156 Average bid
    $156 Avg Bid
    76 bids

    We are looking for a Senior Android Enterprise / EMM / MDM Consultant to help us with our Acadhub MDM platform. We already have an existing Custom DPC, Device Owner implementation, kiosk/device management functionality, and backend integration. We need an expert with proven hands-on experience in: * Android Enterprise * Google Android Management API (AMAPI) * EMM/MDM/UEM * Custom DPC and Device Owner * Android Enterprise provisioning and enrollment * Kiosk / dedicated device management * Google EMM onboarding, validation and compliance * Troubleshooting AMAPI and Android Enterprise integration issues Scope: Review our existing implementation, identify technical/compliance gaps, advise on the correct AMAPI/EMM architecture, help resolve Google onboarding/validation issues, and provide i...

    $244 Average bid
    $244 Avg Bid
    110 bids

    I’m enhancing an existing Java-based web application and need a junior-level developer located in India to focus purely on the front-end layer. Your day-to-day work will revolve around turning the current UI mock-ups and JSP templates into clean, responsive pages written in standard HTML, CSS and vanilla JavaScript, ensuring they plug smoothly into the already-built Java web stack. You will receive clear design files, access to the project’s Git repository, and a short onboarding call to walk you through our coding conventions. From there, I’ll expect: • Pixel-accurate screens rendered across modern browsers • Lightweight, well-commented CSS with mobile responsiveness baked in • JavaScript kept framework-free unless a use case demands otherwise &bul...

    $236 Average bid
    $236 Avg Bid
    85 bids

    I want an Android app that lets me jot down every Forex position I take during the day and instantly shows whether I closed it in profit or loss. The flow should be as quick as opening the app, tapping “Add Trade”, entering the pair, lot size, open and close price, then saving—nothing bloated or confusing. Core behaviour • Each trade is stored with its profit-or-loss figure. • The moment a trade is saved, that P/L appears right on the trade row so I can scan the day’s list and see how I did, trade by trade. • A clean, modern Material-style UI that looks native on recent Android versions. I’m not after heavy analytics or alerting systems yet; the priority is reliable trade logging and a clear per-trade profit/loss display. Data can sit lo...

    $139 Average bid
    $139 Avg Bid
    112 bids

    I need a colour-prediction game built specifically for Android phones. The app should feel lightweight and intuitive for end-users while giving me complete control through a secure web-based admin panel. Core play: users predict the next colour, stake virtual coins, and instantly see the outcome. An in-game currency wallet must handle balance updates, bet deductions, and winnings in real time. All coin movements should be recorded for audit and displayed clearly to each player. Admin panel: from any browser I want to create or close rounds, adjust win ratios, credit or debit coins, view player histories, and export basic reports. Role management for additional operators would be a plus but is not mandatory at launch. Technical notes • Target device: Android (phones and tablets). ...

    $263 Average bid
    $263 Avg Bid
    50 bids

    Hiring: Senior Java Backend Freelancer – Spring Boot | Microservices | Kafka | Travel Booking Domain Location - Bengaluru only Hi, I am looking for an experienced Java Backend Freelancer (who is available in Bengaluru only) to contribute to a Travel Booking Management project built on a microservices architecture. The technology stack includes Java, Spring Boot, Microservices, Kafka, Pub/Sub, orchestration, and service-to-service communication. Required Skills Java 8/17 Spring Boot Microservices Apache Kafka Pub/Sub Model Service-to-Service Communication Orchestration Patterns REST APIs Event-Driven Architecture The project consists of multiple services and complex workflows, so I am looking for someone who can quickly understand the overall architecture and contribute effectiv...

    $103 Average bid
    $103 Avg Bid
    27 bids

    I need an Android-first cooking application that ships with a polished, searchable recipe database, a built-in grocery list manager, and an adjustable cooking timer that can run in the background while users browse other screens. For now, those three core features are non-negotiable. I am still weighing whether to let users create and share their own recipes, so I would like the codebase structured in a way that makes adding user-generated content straightforward in a later update (for example, keeping data models and cloud storage hooks modular). Deliverables • Production-ready APK and Play-Store-ready bundle • Clean, well-commented source code (Kotlin or Java inside Android Studio) pushed to a private Git repo • Basic Firebase or Room database setup for recipes...

    $272 Average bid
    $272 Avg Bid
    76 bids

    Mobile app needed in java, android studio with AI work from Pakistan or India new freealncer for some easy work

    $6 / hr Average bid
    $6 / hr Avg Bid
    46 bids

    I need a production-ready AES implementation that I can drop into our stack to protect data at rest. The focus is on clean, well-documented source code that supports 128, 192, and 256-bit keys, CBC and GCM modes, plus straightforward hooks for key rotation. My environment is a mix of Python micro-services and a Java back-end, so a portable C/C++ core wrapped for those languages—or native, equally secure versions—would work. What matters most is that the code passes standard NIST test vectors, includes unit tests, and ships with a concise integration guide. Deliverables: • Fully commented AES library (source + build instructions) • Test suite confirming compliance with FIPS/NIST vectors • Short README covering integration and key management reco...

    $2667 Average bid
    Local
    $2667 Avg Bid
    70 bids

    I need an end-to-end algorithm that trades a single share-market instrument entirely on technical chart analysis. The core logic must follow a technical trading approach, relying on candlestick patterns, moving averages, RSI, and manually-defined trend lines to decide entries, exits, and position sizing. Scope The build starts from raw market data ingestion, moves through signal generation, and finishes with live order execution and performance reporting. All elements—data cleaning, feature engineering, back-testing, walk-forward validation, risk controls, and real-time monitoring—should sit inside one coherent codebase so I can flip from historical tests to live trading with minimal re-configuration. Implementation Notes • Python is my preferred language; common...

    $2972 Average bid
    $2972 Avg Bid
    182 bids

    Overview: We require a production-grade automation service that monitors an incoming Gmail inbox, reliably extracts structured work-order data using an LLM, and creates fully populated Jobber Requests via Jobber's GraphQL API. Key Functional Requirements: 1. Ingestion: - Real-time email capture using Gmail API via Google Cloud Pub/Sub webhooks (no inefficient polling). - Robust handling of forwarded/nested email threads to extract the original requester's details, not the forwarder. 2. AI Extraction & Validation: - LLM pipeline (OpenAI/Anthropic) using strict JSON schemas (Structured Outputs / Tool Calling). - Extracted fields: Client Name, Phone, Email, Property Address, Job Title, Work Overview, and Job Notes. 3. Media & Snapshot Engine: - Generate a c...

    $137 Average bid
    $137 Avg Bid
    160 bids

    I am a YouTube content creator with an existing gaming audience of 7,600+ subscribers, and I am looking for a highly skilled developer who can become a long-term development partner for a large-scale mobile multiplayer roleplay game. About the Project The goal is to build a GTA/SAMP-style mobile multiplayer roleplay experience, inspired by the depth and systems of games such as Black Russia and SA-MP. I have extensive knowledge of multiplayer roleplay games and understand the gameplay and systems required, including: - Roleplay systems - Economy and jobs - Vehicles and properties - Factions and organizations - Police/criminal systems - Character progression - Businesses - Inventory systems - Multiplayer gameplay - Server-side game systems - Player management - Monetization and live-se...

    $10 Average bid
    $10 Avg Bid
    8 bids

    I need a robust automation bot for an Android game that can do three core things: 1. Detect every relevant UI element on multiple screens through image recognition, then tap the right spots to claim the daily rewards without fail. 2. Autonomously solve the in-game maze and pick-pair minigames with human-like speed and accuracy. 3. Run hands-free once launched, logging what it collected or solved so I can review a simple report afterward. Deliverables • Full Android-ready build (APK or script + instructions to run with ADB/Emulator) • Source code with clear comments • Image libraries or model files used for recognition • Quick user guide and a short demo video that shows the bot clearing both minigames and collecting a day’s rewards Acceptance criter...

    $7 / hr Average bid
    $7 / hr Avg Bid
    93 bids

    I need a complete Android mobile application that serves as a social media platform. The core task is to turn my concept into a fully functioning app—from setting up the project in Android Studio, through coding the main social features, to packaging a release-ready APK. At this stage I will provide the feature list, brand assets, and any required APIs; you’ll transform them into clean, well-documented Kotlin or Java code. Expect typical social elements such as user registration, profile pages, a scrolling feed, basic post interactions, and push notifications, but I’m open to your technical guidance on the best architecture and libraries. Deliverables • Full Android Studio project with readable, commented source code • Signed release APK and a debug build fo...

    $11 / hr Average bid
    $11 / hr Avg Bid
    78 bids

    I have an idea for a new social-networking experience and now need a skilled Android developer to bring it to market. The concept and basic user flows are already sketched; your role is to translate them into a smooth, modern Android application that can scale. You will design the app’s architecture, craft an intuitive Material Design interface, and connect everything to a reliable back-end (Firebase is fine, but I’m open to alternatives you can justify). Expect standard social features such as secure sign-up/login, profile creation, a real-time feed, messaging or comments, image upload, and push notifications. Performance, clean code, and thoughtful UX are priorities. Deliverables I’ll review for acceptance: • Complete, well-documented Kotlin/Java source code &b...

    $323 Average bid
    $323 Avg Bid
    64 bids

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