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!

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    Necesito una aplicación hecha en android studio (oseo necesitare el proyecto) en la que pueda enviar sms masivo. Esta debe poder hacer peticiones web (PHP) y pueda leer un json que es el dato que va desvolver la peticion, estas variables van a contener el numero de telefono y el nombre. La app debe tener una barra de progreso donde se puedan ver la cantidad de sms envios y cuantos faltan por enviar.

    €220 (Avg Bid)
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    6 nabídky

    I'm seeking an experienced Android Developer to create an app with several specific features. Build an Android app for message forwarding. Enable users to set forwarding numbers via an admin app. Allow admin app users to preview upcoming messages.

    €323 (Avg Bid)
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    I am seeking a proficient Cloudsim simulation expert to conduct virtual machine (VM) load balancing in a cloud computing environment using specific metrics. Key Project Requirements: - Implementing load balancing using cloudlets makespan and deadline. - Prioritizing tasks based on execution time and deadlines. Ideal Skills and Experience: - Deep understanding of Cloudsim simulation and VM load balancing. - Solid experience in factoring task priority based on execution time and deadlines. - Proficient in CPU utilization, memory utilization, and network traffic. - Strong ability to efficiently and accurately execute tasks. - Comprehensive knowledge of cloud computing environments. With these skills, you will ensure that the project is effectively implemented and completed within the des...

    €232 (Avg Bid)
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    As an individual immersed in the fast-growing cryptocurrency world, I'm searching for a detail-oriented and resourceful developer to handle a variety of tasks involving smart contract development, blockchain integration, and wallet development. Specifically, your tasks will include: - Creating and deploying smart contracts - Integrating blockchain technology into our existing systems - Developing secure cryptocurrency wallets The ideal candidate for this project should have intermediate experience in cryptocurrency development and a proven track record of delivering results. Proficiency in Solidity, C++, JavaScript, and Python is required. Besides, you should demonstrate a clear understanding of blockchain principles, protocols, and cryptography. Apart from technical skills, I val...

    €96 / hr (Avg Bid)
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    I am in need of an expert to develop a modern watch application on Android mainly on Samsung Galaxy Watch 4. The application should integrate the following features: - Fitness tracking - Ability to set timers or alarms - Capability to receive notifications It's critical for the design approach to be modern yet user-friendly. Ideal candidate should have: - Proven experience in Android application development, specifically for watch apps - Strong understanding and capacity to integrate fitness tracking, timers, alarms, and notification systems - Impressive portfolio of modern app designs for reference. I look forward to receiving your proposals and learning about your relevant skills and experience.

    €338 (Avg Bid)
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    The software system is an online blood bank management system that helps in managing various blood bank operations effectively. The project consists of a central repository containing various blood deposits available along with associated details. These details include blood type, storage area and date of storage.

    €1145 (Avg Bid)
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    We invite qualified freelancers to submit proposals to develop a mobile application for a research project. We need the freelancer to develop an application that allows us to track the daily locations of study participants through their smartphones and also to establish a secure database where the location data will be stored. The goal is to collect location data while ensuring privacy and data security. Project Scope: The freelancer is expected to develop a mobile application compatible with Android devices, capable of collecting location data. As Android recently updated the capability of tracking app users, the app should be designed such that the location of users is tracked every time they open the application. Given that the new rules require user actively opening the app for locat...

    €1176 (Avg Bid)
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    Android App Server Error Fix 6 dní left
    OVĚŘENÉ

    I'm currently facing an issue with my Android app's payment gateway. Specifically, error messages pop up during the payment process. The most frequent error is a "server not responding" message. This seems to occur while generating the payment token. I am looking for an expert to identify the root cause and resolve this error for smooth payment operations. Ideal Skills: - Proficient in Android app development - Knowledge in resolving server errors - Experience with payment gateways - Exceptional problem-solving skills

    €15 (Avg Bid)
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    The BOT would essentially need to do front running and sandwich transactions: - Scan the blockchain and find transactions based on certain criteria (pending on the block aka mempool). - Front-run (specific trade volumes, slippage and gas price) transactions by placing a buy order on the same block at the same time by setting a higher gas price. - Sell immediately in the next block right after at the buy transaction on the front-ran block is completed.

    €397 (Avg Bid)
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    I've just finished development on a new Android app dedicated to Comix and I'm in need of some assistance with the final steps of publication. The app has already undergone both unit and user acceptance testing, ensuring a smooth and efficient operation. The core functionality of the app revolves around the world of Comix, offering features and tools relevant to this field. I'm in search of a freelancer who specializes in Android development, with a solid understanding of the publication process. The ideal candidate will have a strong history in working with apps of a similar nature and the ability to work efficiently to get this new service to market. Requirements: -Strong background in Android development -Understanding of app publication process -Experience with si...

    €27 (Avg Bid)
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    I'm looking for a detail-oriented programmer with deep knowledge in Julia language and deep learning algorithms. Experience with Deep Binomial Matrix Transform networks is a significant plus although not a strict necessity as theoretically-oriented minds are also much appreciated. The project involves the rewriting and adjustment of existing Deep Neural Network algorithms and Julia code to work within a Deep Binomial Matrix Transform Network environment. However, I look forward to discussing those during the interview process. Ideal skills for this job are: * Proficiency in Julia language * Solid understanding of deep neural networks and machine learning * Familiarity with Deep Binomial Matrix Transform Networks * Excellent problem-solving skills * Ability to effectively optimize, ...

    €1 / hr (Avg Bid)
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    I am looking for a skilled programmer with proficiency in Spring Boot and Java Server Pages (JSP) to work on a project that integrates Spring Boot with Fusion Charts. The project does not require any form of user authentication. However, specific skills and experience beneficial to this job include: - Solid understanding of Spring Boot - Experience with Fusion Charts - Proficiency with JSP - Creating engaging and functional user interfaces While data manipulation is not a requirement for this project, a strong understanding of conceptualizing and creating APIs and related functionalities will prove beneficial. Your main task will be to implement the integration while ensuring compatibility and seamless functionality. Much of the work will revolve around ensuring the proper function of...

    €14 / hr (Avg Bid)
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    I need a skilled Android developer to create an application for my IoT devices. - Communication: The app should connect to devices via Wi-Fi. - Functionality: Its main function will be to control the IoT devices. - Device controls: The app should enable on/off switching and parameter adjustments. Ideal skills would include a robust knowledge of Android development and previous experience in IoT based app development. A clear understanding of how to create interfaces for Wi-Fi communication and device control is essential.

    €14 (Avg Bid)
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    Help needed with jakartaEE 6 dní left
    OVĚŘENÉ

    Im building an API with jakartaEE, but I keep getting errors. I'm looking for a senior API developer to help me solve it.

    €20 (Avg Bid)
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    The project aims to create a browser that integrates the robust features and privacy standards of the Brave Browser with a unique user interface, a custom search algorithm, and a blockchain-based token reward system. This browser targets users who desire a personalised search experience and are motivated by token-based rewards for ad engagement. ? Features 1. Custom User Interface: A redesigned, user-centric interface for an enhanced browsing experience. 2. Integrated Search Functionality: A search feature that prioritizes an internal keyword database, with Google search as a fallback. 3. Blockchain-Based Token Reward System: A system rewarding users with Ethereum-based tokens for engaging with ads. MetaStart BrowserClone (1) 2 4. Privacy and Security: Advanced privacy and se...

    €711 (Avg Bid)
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    WHATSAPP API INTEGRATION 6 dní left
    OVĚŘENÉ

    We want to integrate WHATSAPP third-party api integration to send messages from our existing web java based application. 1. Upon of user signup, as a confirmation message we need to send whatsapp message to the registered number. 2. Verify if the number is whatsapp number before sending message.

    €107 (Avg Bid)
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    I operate a telegram channel that posts Solana blockchain wallet addresses. I require a skilled coder proficient in blockchain technology specifically Solana's SPL tokens. The task involves: * Pulling SPL tokens that were received or minted in the last hour from the posted wallet address. * This should be a one-time event and doesn't need to be set up for continuous monitoring. * The significant details to extract include the transaction timestamp, token address, and token name. Ideal candidate should have pertinent experience in blockchain technology, especially Solana blockchain and SPL tokens.

    €153 (Avg Bid)
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    Hello, I need and Android developer that knows how to implement Arcgis Android SDK in order to display three locally stored .tpk files. The application must run on Android above version 12, including Android 14. Please bid only if you know how to use Arcgis SDK for Android and if you developed in the past this kind of projects.

    €165 (Avg Bid)
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    MySQL Database Dev for Overhaul 6 dní left
    OVĚŘENÉ

    I'm in need of an experienced database developer who is well-versed in MySQL. My current project entails: - Reviewing and possibly redesigning our existing database Schema to streamline and optimize our operations. - Implementing strong data encryption mechanisms to fully secure our data. - Setting up reliable backup and recovery options to prevent or reduce potential data losses. - Ensuring that our database is scalable and performance optimized as our user base grows. - Fully integrating the enhanced database with our website. The perfect candidate should have solid background in MySQL database development and schema design, experience with data encryption and setting up backup and recovery systems, proficiency in optimization for better scale and performance, as well as web integ...

    €1062 (Avg Bid)
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    Need to change method so it doesn't freezes UI

    €147 (Avg Bid)
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    we already have the logic code ready you need change the ui solve some crash issue and add google admob firebase google auth login and subscription system using google in-app purchase not not show ads

    €14 (Avg Bid)
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    I'm searching for a part-time, Delhi/NCR based, individual freelancer with notable prowess in Node.js and React.js to become part of a focused team. Your main task involves coding for Google and Facebook data retrieval integration. Key Requirements: - Proficiency in Node.js and React.js. - Experience in integrating Google Sign-In and Facebook Login for data retrieval. Doing this job correctly necessitates significant experience with Google and Facebook APIs. You need to be centered in Delhi/NCR and work in-house during part-time hours. This position isn't available for teams – individual freelancers only. I'm looking for someone who can take lead on this project from the get-go and is eager to be a part of an industrious, dedicated team.

    €291 (Avg Bid)
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    I need a skilled Android reversing engineer who can expertly perform the following tasks: - Reverse engineer an APK - Analyze obfuscated code - Identify potential security vulnerabilities The main objective of this project is to modify the behavior of the app and extract useful assets or resources. A critical change the reversed app must have is a modification in its in-app purchases feature. The ideal candidate would be someone with a proven track record in Android reversing, deep understanding of code analysis, and proficiency in detecting and addressing security loopholes. An understanding of in-app purchase protocols and how to manipulate them would be highly beneficial. Let’s ensure the app operates exactly the way we want it to.

    €519 (Avg Bid)
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    I'm in need of an exceptional developer who is well-versed in Android application development, familiar with Telegram bot creation, and comfortable with backend integrations. Though some functionalities have been left undecided, your input during this process is going to be valuable. Key Responsibilities: * Developing a Telegram bot for the Android platform * Contributing to functionality determination Desired Skills & Expertise: * Android development * Experience with creating Telegram bots * Backend integration skills * Effective communication and solution-oriented mindset Ambiguities regarding the functionality and features of the bot will be clarified during the early stages of development. This project provides an opportunity for developers to showcase their creativity an...

    €124 (Avg Bid)
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    I'm currently in need of a professional with excellent skills in Java Eclipse and PostgreSQL for an API integration job. Key Task Details: - The major task revolves around integrating external APIs into the existing system. However, I am presently experiencing a message passing problem which needs urgent attention. - The challenge is that messages are not being sent nor received. The chosen freelancer must be able to troubleshoot this issue and implement an effective solution. Ideal Skills: - Solid understanding of API integration with the Java Eclipse environment. - Proficient in debugging and resolving message passing problems. - Extensive knowledge of PostgreSQL. - Expert in systematic and methodical problem-solving approaches. This project has the potential for long-term colla...

    €3 / hr (Avg Bid)
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    I'm looking for a detail-oriented programmer with deep knowledge in Julia language and deep learning algorithms. Experience with Deep Binomial Matrix Transform networks is a significant plus although not a strict necessity as theoretically-oriented minds are also much appreciated. The project involves the rewriting and adjustment of existing Deep Neural Network algorithms and Julia code to work within a Deep Binomial Matrix Transform Network environment. However, I look forward to discussing those during the interview process. Ideal skills for this job are: * Proficiency in Julia language * Solid understanding of deep neural networks and machine learning * Familiarity with Deep Binomial Matrix Transform Networks * Excellent problem-solving skills * Ability to effectively optimize, ...

    €6 / hr (Avg Bid)
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    I am in need of a skilled software developer who can build an HRMS software with the necessary features that match our company's needs. Key features: * Setting Organization Hierarchy and Setup. * Repository of Important Documents * Recruitment & Onboarding Employee. * Organization Announcements, Holiday List. * Timesheet & Attendance Tracking * Payroll Management * Leave Management * Asset Management with Asset Invoice Attachment * Performance Management * Employee Reimbursement * Grievance Management * Customizable settings for each module with multiple approvals. For this software, we require flexibility with user access. Multiple roles (admin, hr, accounts, manager, employee) should be available each with its own permissions. For the software creation, w...

    €507 (Avg Bid)
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    I'm looking for an innovative developer who can create an Android app designed for the public, with the primary feature being problem-solving. This app should be user-friendly and possess a dynamic interface for user interaction. Key Requirements: - Android App Development expertise - Experience in developing problem-solving mechanisms for apps - Full understanding of Google Play app guidelines - Experience in user interface design - Ability to cater to a general public audience Your bid should indicate your knowledge about problem-solving apps and examples of similar projects would be advantageous.

    €210 (Avg Bid)
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    I'm looking for a freelancer experienced in creating forms on the Microsoft platform. The purpose is to streamline our internal processes effectively. The forms need to capture details pertaining to: - Civil flow process - Cash flow process The ideal candidate will have a deep knowledge of Microsoft Forms and understand how to construct intuitive and efficient forms for internal business processes. Experience in creating forms for financial and civil flow management will be highly advantageous. With your assistance, we aim to make our processes swift and user-friendly.

    €33 (Avg Bid)
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    5 nabídky

    *Excellent understanding of Java programs and can create UML activity diagram

    €25 (Avg Bid)
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    I'm seeking an experienced software developer to create an educational software. This will closely emulate features from WordWeb Pro, and will be primarily used to enhance my learning process. Please explore for a better idea of what I'm looking for. Key Features: - Online dictionary - Synonyms and antonyms - References and other relevant learning tools Operational Requirements: The software should be compatible with both Windows and Mac systems, ensuring broad usability. User Authentication: To maintain personal work integrity, the software has to have user login and authentication functionality. Ideal Expertise: It would help if you have prior experience in educational software development or have created programs like WordWeb Pro in the past. Familiarity with implement...

    €340 (Avg Bid)
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    I'm seeking an AWS DevOps consultant with robust experience to deliver a prompt and reliable deployment for my Java application (Springboot/React). This role will see you navigating systems such as EC2, Amplify, RDS, and Route53. Key Responsibilities: - Accurate AWS/Amplify deployment of our Java Application - Troubleshoot and resolve any issues within the AWS environment Ideal Skills: - Proficient with AWS services like EC2, Amplify, RDS, Route53 - Solid experience in deploying Java Applications (Springboot/React) - Excellent problem-solving skills While applying, kindly highlight your experience in a similar domain. Quality checks and testing requirements will be discussed later. I look forward to your application!

    €7 / hr (Avg Bid)
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    As part of my project, I'm looking for a proficient Java developer with experience in Spring Boot and microservices. I'm in need of a Java Microservices specialist who can contribute to the development and support of microservices for my project(job support)

    €110 (Avg Bid)
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    I require an experienced mobile app developer to assist in converting an existing WinCE app to an Android version with the same functionality. Key Features Required: * Barcode scanning: The Android app must effectively scan 1D barcodes, replicating the functionality of the WinCE app. * Linking to Web Content: After a successful 1D barcode scan, the app should seamlessly link to web content, as the current WinCE version does. Ideal Qualifications: * Proven experience in mobile app development, particularly with Android operating systems. * Knowledge of barcode scanning capabilities and technologies, specifically around 1D barcodes. * Strong understanding of linking scanned barcode results to web content. The goal is to create a user-friendly, effective, and consistent experience for ...

    €692 (Avg Bid)
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    I'm in need of an accomplished Android developer to build a productivity app with integrated payment gateways. As per the project requirement, the application should incorporate the following features: - User Authentication - Push Notifications - In-App Purchases Even though I skipped the question on requested features, it's explicit that these are fundamental facets for a productivity-enhancing application like the one I envision. The app's main function will be to foster user productivity. Therefore, a discernible understanding of the design and functionality of productivity apps is highly valuable. Experience in integrating payment gateways is also a must-have for seamless in-app purchases. Knowledge in creating user-friendly interfaces, coupled with excellent proble...

    €113 (Avg Bid)
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    Android VPN App Development 6 dní left
    OVĚŘENÉ

    I'm seeking an experienced app developer to create a unique, user-friendly, and colorful Android VPN app. The primary purpose of this app is to offer bypass geographic access restrictions, and provide anonymous browsing for users. Key requirements: - Development of an Android app with a colourful user interface. - The VPN functionality should enable secure internet connections, bypass geographical restrictions, and allow anonymous browsing. Get Approve by Google Policies,. upload and submit and approve by google playstore Example App

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    I'm seeking a proficient app developer to build a delivery block scheduling app, akin to the functionality of Amazon Flex, for both iOS and Android platforms. This app will include: - User Authentication: Users should authenticate their access via phone number verification procedure. - Block Scheduling: This feature should be efficiently incorporated to offer users the ability to schedule delivery times. Ideal freelancers for this project are required to have substantial experience in mobile app development across both iOS and Android platforms, coupled with solid understanding and skill in implementing user authentication systems. Familiarity with delivery services app development will be a plus.

    €643 (Avg Bid)
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    I'm in need of a developer proficient in GO language and Cassandra Astra database. Expectations will include establishing a sound connection to the database and setting up the GitHub repository for optimal collaboration. This project serves the purpose of creating a SaaS solution that encompasses: - User Authentication - Subscription Management - Data Analytics - AI Integration with Open AI The User Interface should embody a clean and minimalist design. Prior experience with similar scope and SaaS implementation will be considered a plus.

    €491 (Avg Bid)
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    I'm seeking an Oracle Fusion expert who can provide live virtual sessions that cover an in-depth technical course on Oracle Fusion. These sessions will primarily focus on: • Technically Strong with Expert Skills in FBDI, SOAP/webservices, Java, OAF, REST APIs, OIC Integration adaptors etc. • Strong problem-solving skills. • Strong learning orientation so you keep abreast of the emerging business • Create and maintain appropriate documentation for architecture, design, technical, implementation, support, and test activities. • Familiarity with EDI, ADF, XML, HTML, JDeveloper, JavaScript as well as web services preferred. - Oracle Fusion Middleware - Oracle Fusion Applications - Oracle Fusion Architecture you to bid if you've had previous success in onli...

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    I'm in need of a professional Java developer to create a text editor application using nodes. Requirements: - The assignment involves implementing nodes, linked lists, and advanced array traversal techniques. - The text editor should have the capability for text formatting including bold, italic, and underline. - Skeleton files and an outline in PDF format will be provided to guide the structure of the application. - The application should be built primarily using linked lists. Ideal Skills: - Proficiency in Java programming language - Advanced understanding of nodes and linked lists - Experience in creating text editors or similar applications - Knowledge of text formatting functionalities. Please place your informed bid according to these requirements. Looking forward to yo...

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    Mejorar aplicación móvil en kotlin y Java 1. Terminar de hacer el modo offline 2. Arreglar detalles menores de la app 3. Sincronizar la base de datos Realm con el sistema CRM 4. Hacer que la app sea muy rápida

    €18 / hr (Avg Bid)
    Neodkladné
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    Flutter App Crash Resolution 6 dní left
    OVĚŘENÉ

    Hey everybody I have a simple modification to my code that now works on specific outputs, and when I train the images on the Teachable Machine website and extract the tflite model and upload it to my project, this problem occurs. E/flutter ( 8569): Invalid argument(s): Output object shape mismatch, interpreter returned output of shape: [1, 2] while shape of output provided as argument in run is: [1, 10, 4] The modification is to the identification code to suit the outputs of my model I will provide you with the complete project file and direct you to some things and sites that will help you in the testing process and determining the model specifications. Here's what I am looking for in a freelance professional: - Proficient in Flutter and Android app development - Experience in r...

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    I am seeking a seasoned IT professional with extensive knowledge and experience in mobile app development, specifically for Android. Key aspects of the project: - Main task: Developing a strategy gaming app for Android platform. - Focusing heavily on functionality, design, and user experience. Ideal Candidate: - Mastery in Android development and expertise in strategy game app development. - Strong understanding of latest gaming trends and ability to implement them creatively. - Detail-oriented, responsive, and committed to delivering high-quality work. Your responsibilities will include conceptualization, design, and execution, with an emphasis on strategy elements. It would be highly regarded if your past work demonstrates these skills. We anticipate a smooth, effortless user expe...

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    I'm in need of a talented developer to build an AI-powered DevOps web application that can auto-deploy, troubleshoot, and intelligently monitor applications. The initial focus should be on Github Actions and AWS ECS deployments. System functionality should include: - Auto-deployment: Automatically deploying applications with consideration to efficiency and error-prevention. - Automated Troubleshooting: Identifying and effectively addressing any issues that arise during deployment. - Intelligent Monitoring: Consistently watch over applications' performance and highlight areas of improvement or concern. Further, the web app will need to be developed using JavaScript. While the tool must be powerful, an acceptable level of user complexity is intermediate. Familiarity with AI, De...

    €3772 (Avg Bid)
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    I'm looking for a detail-oriented programmer with deep knowledge in Julia language and deep learning algorithms. Experience with Deep Binomial Matrix Transform networks is a significant plus although not a strict necessity as theoretically-oriented minds are also much appreciated. The project involves the rewriting and adjustment of existing Deep Neural Network algorithms and Julia code to work within a Deep Binomial Matrix Transform Network environment. However, I look forward to discussing those during the interview process. Ideal skills for this job are: * Proficiency in Julia language * Solid understanding of deep neural networks and machine learning * Familiarity with Deep Binomial Matrix Transform Networks * Excellent problem-solving skills * Ability to effectively optimize, ...

    €2 / hr (Avg Bid)
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    I'm in need of a proficient tutor to guide me in both Python and React Native. I'm currently at a beginner level in Python and intermediate in React Native. The focus of the tutoring I seek is: - Grasping basic Python programming concepts - Understanding mobile app building in React Native Since I'm using Expo for deployment, knowledge in its usage will be of great advantage. Experts with sufficient experience using Python and React Native are highly sought after. Patience in teaching and excellent communication skills will be ideal.

    €9 / hr (Avg Bid)
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    Necesitamos desarrollar un front-end con java script donde visualizar en un diagrama tipo ghant los horarios de asignacion de producto por maquina acorde a un archivo de input que tenemos y poder mediante drag &drop cambiar estos bloques horarios asignandolos a otras lineas d e produccion y grabar el nuevo cronograma propuesto en una tabla interna que tambien proveemos.

    €421 (Avg Bid)
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    I'm seeking a highly experienced Java professional to assist me in preparing for an upcoming interview. I need targeted guidance and insights on a range of core concepts, ensuring a solid understanding and quick recall during the interview. The focus will be centered on Java 8 and the Spring framework. Knowledge and expertise should cover the following areas: - Java 8 - Spring framework - Lambda expressions - Streams - Functional interfaces In addition to these specific topics, the potential freelancer should also have a strong grasp on: - Object-oriented programming - Exception handling - Generics - Multithreading - Java collections - Java IO - Networking - JDBC - Reflection I look forward to your bids and wish to commence this interview preparation ASAP.

    €133 (Avg Bid)
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    "I need an Android mobile application developed. Its main function will be to connect individuals or businesses requiring quick goods delivery with available vehicles returning empty after unloading their goods. Here are the project specifics: Key Features: - Although I skipped outlining primary features, I'm expecting basic features, like user registration, vehicle tracking, and chat functionality. Payment: - The app must have multiple payment options. This will include an in-app payment system, integration with third-party payment gateways, and an option for pay on delivery. Ideal Freelancer: - An experienced Android app developer preferably with a portfolio in logistics or e-commerce apps. Knowledge in GPS tracking, chat system integration, and secure payment solution inte...

    €725 (Avg Bid)
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