Java is a versatile and widely-used programming language that enables programmers to create robust and powerful software applications. By hiring Java Developers on Freelancer.com, clients can take advantage of these skilled professionals' expertise to develop cutting-edge solutions tailored specifically for their business needs. Here's some projects that our expert Java Developers made real:

  • Implementing backend systems for web applications
  • Creating mobile app solutions for Android devices
  • Developing complex enterprise software with Java Springboot and Angular
  • Building RESTful APIs for seamless data integration
  • Designing chatbot engines to enhance customer experience
  • Optimizing database performance with SQL
  • Constructing efficient data structures and algorithms
  • Developing cross-platform web-based applications

Tapping into the talents of Java Developers on Freelancer.com has helped numerous clients achieve their goals and bring their projects to life. Our freelancers have demonstrated their ability to tackle various challenges with the Java programming language, from backend systems to mobile apps and more. With an expansive pool of skilled Java developers, Freelancer.com provides the perfect platform for clients to find the right professional for their project requirements.

Ready to bring your project to life by hiring a talented Java Developer on Freelancer.com? Simply post your project details, outline your requirements, and watch as skilled freelancers bid to take on your project. The platform's user-friendly features make it easy to evaluate each freelancer's expertise, past experience, and rate in order to choose the best fit for your needs. Don't wait any longer - tap into the vast talent pool available at Freelancer.com today!

From 260,739 reviews, clients rate our Java Developers 4.84 out of 5 stars.
Hire Java Developers

Java is a versatile and widely-used programming language that enables programmers to create robust and powerful software applications. By hiring Java Developers on Freelancer.com, clients can take advantage of these skilled professionals' expertise to develop cutting-edge solutions tailored specifically for their business needs. Here's some projects that our expert Java Developers made real:

  • Implementing backend systems for web applications
  • Creating mobile app solutions for Android devices
  • Developing complex enterprise software with Java Springboot and Angular
  • Building RESTful APIs for seamless data integration
  • Designing chatbot engines to enhance customer experience
  • Optimizing database performance with SQL
  • Constructing efficient data structures and algorithms
  • Developing cross-platform web-based applications

Tapping into the talents of Java Developers on Freelancer.com has helped numerous clients achieve their goals and bring their projects to life. Our freelancers have demonstrated their ability to tackle various challenges with the Java programming language, from backend systems to mobile apps and more. With an expansive pool of skilled Java developers, Freelancer.com provides the perfect platform for clients to find the right professional for their project requirements.

Ready to bring your project to life by hiring a talented Java Developer on Freelancer.com? Simply post your project details, outline your requirements, and watch as skilled freelancers bid to take on your project. The platform's user-friendly features make it easy to evaluate each freelancer's expertise, past experience, and rate in order to choose the best fit for your needs. Don't wait any longer - tap into the vast talent pool available at Freelancer.com today!

From 260,739 reviews, clients rate our Java Developers 4.84 out of 5 stars.
Hire Java Developers

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    Requirements to fulfill in my current Job: ==================================== Configuration changes to monitor critical BIP reports as part of the ESS dashboard In HCM Extracts, the Sub process (based on requirement, should be able to include or exclude) should be displayed in the Dashboard. In HCM Extracts also monitor the count of records process successfully or failed. In ESS Dashboard, require an additional section which displays the ESS Jobs scheduled which are not yet started and capture the ESS Job Status Have a graphical representation on the jobs running in the instance based on Module (SCM, HCM, FIN) Further Improve the look and feel of the dashboard. Dashboard monitoring Jobs failing frequently due to huge volume of data.

    $3 / hr Average bid
    $3 / hr Avg Bid
    7 bids

    I'm looking for an experienced Java developer to help identify and fix bugs in my application's features. The primary objective is to ensure that all parts of the code are working seamlessly together. (Check available codes and copy to java project to build app, correct small issues, and send list of big issue. and send build Error log if any) Only one hour

    $17 / hr Average bid
    $17 / hr Avg Bid
    42 bids

    Specialist required to setup and configure an application using pre-purchased codes from Code Canyon. Must sign an NDA and IP Agreement before work begins.

    $75 Average bid
    $75 Avg Bid
    14 bids

    We’re building a cutting-edge payment orchestration platform designed to optimize payment routing, streamline transactions, and provide businesses with a seamless payment solution. We’re looking for a highly skilled freelance developer to join us on this journey and take the lead in building, scaling, and optimizing this platform. Project Scope: The project involves building a secure, scalable, and flexible payment orchestration system that integrates with multiple payment gateways, optimizes transaction routing, and ensures high performance. If you’re experienced in payment technology and can build complex, high-traffic platforms, we’d love to work with you. Responsibilities: Design and Development: Architect and develop a robust payment orchestration platform t...

    $13 / hr Average bid
    $13 / hr Avg Bid
    23 bids

    I'm seeking an OpenText Extended ECM (xECM) specialist with a strong focus on document management. Your role will primarily revolve around providing ongoing support and maintenance for our system, with particular emphasis on troubleshooting issues related to document indexing, retrieval and security. Must Have: Should be staying in Canada (Quebec preferred) French Language is a must. Key Responsibilities: - Provide comprehensive support and maintenance for our OpenText xECM system - Troubleshoot issues primarily related to document management - Ensure optimal performance of document indexing, retrieval and security processes - Carry out system upgrades as necessary Ideal Skills and Experience: - Proven experience with OpenText Extended ECM (xECM) - Extensive knowledge in document...

    $36 / hr Average bid
    $36 / hr Avg Bid
    6 bids

    I'm seeking an experienced blockchain developer to create a utility token on the Solana blockchain for a game project. The token's primary purpose will be for in-game transactions and rewards, with added functionality of staking capabilities. Key Responsibilities: - Design and deploy the game utility token. - Create smart contracts that manage tokenomics and integrate with existing game databases. - Ensure the smart contracts meet basic security standards. Ideal Skills: - Prior experience in token creation on the Solana blockchain. - Proven track record of creating smart contracts for game projects. - Ability to design and implement staking capabilities within the token. Please provide examples of your previous work in token creation and your portfolio. Include your expected r...

    $496 Average bid
    $496 Avg Bid
    12 bids

    I'm looking for a proficient Full-Stack Java Spring Developer to join my team remotely. This role is aligned with the GMT+3 timezone, working from 8:00 AM to 5:00 PM, with a monthly salary of $500. Key Responsibilities: - Equal contribution to both frontend and backend development - Implementation of various backend services and features including APIs, Database management, and User authentication - Frontend development using any suitable technology or framework Ideal Skills and Experience: - Strong expertise in Java and the Spring framework - Comprehensive full-stack development skills - Proficiency in a Linux environment - Flexible and adaptable to using any frontend technology or framework

    $481 Average bid
    $481 Avg Bid
    73 bids

    I am seeking a talented programmer who can become part of our team. Our goal is to create a web application that connects Java code with Google Sheets. This will allow us to collect and monitor data from the market for each project we undertake. Key Features: - Data Input Forms: The app should enable easy and intuitive data entry. - Real-time Data Updates: We need the app to provide real-time updates to the Google Sheet as data is collected. - Custom Reporting: The ability to generate tailored reports based on the collected data is crucial. Data Collection: The web app will be used to gather various types of data from the market, including: - Customer Feedback: This will be invaluable in assessing our product's reception and areas for improvement. - Market Trends: Understanding shif...

    $20 / hr Average bid
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    116 bids

    I'm looking for a skilled mobile app developer to create a fully functioning Android app for me. Requirements: - The app should be completed and ready for deployment on the Android platform. - The developer should be able to deliver a high-quality, bug-free application. - Previous experience in Android app development is a must. - Strong understanding of mobile app design principles, interface design, and user experience. - Good communication skills to ensure we are on the same page throughout the project.

    $504 Average bid
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    36 bids

    I've been experiencing some bugs in the user interface of my project. This bid is the continuation of previous project with the dev I was working with.

    $12 Average bid
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    5 bids

    I'm looking for a skilled Android developer to add a new feature to our existing app. The goal is to enable users to access app-specific video content from both their internal storage and SDCard. Ideal Skills: - Proficient in Android app development - Experience with video content integration - Understanding of offline storage access - Familiarity with app-specific content handling Please provide examples of similar projects you've completed in your proposal.

    $361 Average bid
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    20 bids
    Customized CRM Development
    1 day left
    Verified

    I need a CRM specialist who can help enhance and implement specific features in my customized CRM. Key Requirements: - Extensive experience with CRM systems - Proven track record in CRM customization - Highly skilled in customer support tracking systems - Experience in developing ticketing systems within CRMs The primary focus will be on developing a robust customer support tracking feature, specifically a ticketing system. Your expertise will be crucial in ensuring the system is user-friendly and meets all necessary specifications.

    $18 - $148
    Sealed
    $18 - $148
    26 bids

    I'm looking for a professional who can help me enhance the efficiency of tracking resources within my organization. The goal is to increase overall efficiency, specifically in the area of resource management. Key Responsibilities: - Analyze current resource tracking systems - Propose and implement improvements - Create a system that can scale with the organization Ideal Skills and Experience: - Strong background in resource management - Proven track record in efficiency optimization - Excellent analytical skills - Experience with creating scalable systems Focus on tracking material resources efficiency. The primary focus will be on tracking human resources. Current tracking methods include the use of spreadsheets. Consider the development of custom software tailored to our resourc...

    $19 / hr Average bid
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    60 bids

    My Android mobile app has encountered some policy violations related to privacy. I need a professional who can fix these issues and ensure that my app adheres to all relevant policy requirements before it gets resubmitted. Key requirements: - Expertise in Android mobile app development - Deep understanding of Android's privacy policy - Experience in fixing policy compliance issues Please bid if you can help me get my app back on track. Should be completed in 1 day only.

    $36 Average bid
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    15 bids

    I'm looking for a skilled Android developer with experience in building web browsers to create a simple web browser app for Android, utilizing the open-source Chromium and integrating it with a V2Ray proxy for enhanced privacy features. Key Requirements: - Basic browsing capabilities: The app should support all fundamental web browsing features without any complexities. - Compatibility: The app is to be designed for phones only, so adaptability and responsiveness to different phone models is crucial. Ideal Skills: - Proficient in Android app development, particularly with the Android SDK. - Strong understanding of the Chromium open-source project. - Experience with implementing V2Ray proxy integration. - Knowledge of basic UX design principles for mobile interfaces.

    $2453 Average bid
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    72 bids

    I'm looking for an experienced Android developer to create a classic style music player for me. This player will need to function in the foreground and support offline playback. Key requirements: - Design a user-friendly, classic-style UI. - Implement offline playback functionality. Ideal skills and experience: - Proficiency in Android development. - Experience with UI/UX design, particularly classic styles. - Prior work with music player apps is a plus.

    $307 Average bid
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    7 bids

    We are only a tight schedule, if you can't deliver in 3 days please don't waste your time! I'm seeking a developer to create a straightforward Python server platform. This server will communicate with Richmor MDVR devices using the JT808 protocol. Please read the attached document it has all the protocol information. Key Requirements: - Handle terminal registration - Receive GPS data, alarm data, and more - Query multimedia data (e.g., pictures and videos from specific dates and times) - Modify all available device settings (network, recording, alert settings, and more) - Change device configurations as needed This server platform's primary purpose is to monitor GPS data, query multimedia data, and receive and handle alarms. No need for front end, we just need this c...

    $163 Average bid
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    36 bids

    I'm seeking an experienced Python developer to create a desktop application that leverages YOLOv11 for object detection, specifically for character models. This tool should also integrate with a database. The ideal candidate should have: - Proficiency in Python and experience with YOLOv11. - Knowledge of using mouse API and ultralytics. - Strong skills in database integration. - Previous experience in developing desktop applications. The tool should integrate with a license management system database. The desktop application should be compatible with Windows.

    $108 Average bid
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    23 bids

    I'm looking for a solution that automates both switching users and opening specific Telegram channels. Key Requirements: - Switching between multiple predefined Telegram accounts. - Opening particular channels based on user conditions. - Reading messages within these channels. Ideal Skills and Experience: - Proficiency in Telegram API or similar automation tools. - Previous experience in automating social media platforms. - Strong understanding of Python or similar programming languages.

    $94 Average bid
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    7 bids

    I need updates made to my existing Java WebView Android application. The app is currently experiencing issues with file permissions and user notifications. Key Tasks: 1. File Permission Issue: The app shows 'Permission Denied' when the 'Choose File' button is clicked, but does not prompt for permission. I need the app updated to handle this properly. After requesting access, the app should continue without file access if permission is denied. 2. Notifications Alert: If the notifications access is turned off from settings, I want the app to pop up an alert when opened, notifying the user that 'Notifications alert is OFF, please access to allow'. Ideal Skills: - Proficient in Java and Android app development - Experience with WebView - Familiarity with implem...

    $21 Average bid
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    13 bids

    I need a skilled Android developer to enable receipt printing from my custom app to a USB-connected thermal printer. The receipt data is in plain text and needs to be formatted correctly for the thermal printer. Ideal skills and experience: - Proficient in Android app development - Experience with thermal printer integration - Understanding of USB connectivity - Ability to format text for thermal printers

    $12 Average bid
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    8 bids

    I'm looking for an experienced Java programmer to help develop a mobile application. Key responsibilities will include: - Full-cycle application development - Implementing UI/UX design specifications - Working with APIs and third-party libraries Ideal candidates will have: - A strong portfolio of mobile Java applications - Excellent problem-solving skills - Good communication skills

    $583 Average bid
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    65 bids

    Weekly Schedule Planner Android App I need an Android app designed to function as a weekly schedule planner where users can set specific tasks to be reminded at a given day and time. The app should be straightforward but highly effective in helping users remember their tasks throughout the week, with a key focus on a clean and modern interface. The design quality is essential, as this is a simple app, and a visually appealing UI is its primary differentiator. Key Features: Main Weekly Schedule Screen: The app should display a weekly view, showing each day with scheduled tasks listed under their respective times. Users should be able to add, edit, or delete tasks directly from this main screen. Task Details Screen: Users should be able to specify details ...

    $236 Average bid
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    38 bids

    I'm seeking a developer to create a comprehensive Truck Tracking App. The main purpose of this app is to facilitate fleet management. It should support iOS, Android, and Web platforms. Key Features: - Real-time Tracking: The app should provide real-time location updates of the trucks. - Geofencing Alerts: I need to be notified whenever a truck enters or leaves a pre-defined geographical area. - Route Optimization: The app should intelligently suggest the best routes for the trucks, considering factors like traffic and road conditions. - Fuel Monitoring: The app should track fuel consumption and provide insights to help manage costs. - Driver Behavior Monitoring: The app should monitor and report on driver behavior, including speed, harsh braking, and acceleration patterns. - Load Ma...

    $1493 Average bid
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    131 bids

    I'm looking for a seasoned developer to create a secure REST API that employs OAuth2 for authentication. The API should manage user registration and login, with specific functionalities and user roles in mind. Key Requirements: - Implement OAuth2 for secure access - Enable User Registration and Login functionalities - Design API to manage Admin user role Ideal Skills: - Proficient in REST API development - Extensive experience with OAuth2 - Strong understanding of user authentication and role management - Knowledge of creating secure, efficient APIs

    $69 Average bid
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    15 bids

    I need assistance with securing my application's Maven and Gradle library dependencies with a focus on vulnerability scanning. Key Requirements: - Expertise in Maven and Gradle dependency management - Experience with vulnerability scanning - Ability to provide recommendations for automated tools - Skills in performing manual scans Please note, I am not currently looking to integrate this into my CI/CD pipeline, so the scans will be performed separately.

    $18 Average bid
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    8 bids

    I'm seeking a seasoned Full Stack Software Engineer to join my daily meetings (2 hours, Monday through Friday). Your role will be to help tackle challenges, guide my approach, and ensure tasks are handled effectively. Key Responsibilities: - Writing and optimizing Python code for AWS - Developing and deploying containerized applications - Maintaining CI/CD pipelines - Using deployment automation technologies such as Terraform or Scalr Qualifications: - 5+ years of experience with AWS with Python backend - Strong experience with end-to-end testing - Proficient in Python, Java - Familiar with UI frameworks such as React - Experience in developing solutions on AWS or other distributed compute platforms - Skilled in using deployment automation technologies such as Terraform or Scalr - ...

    $507 Average bid
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    91 bids

    I've forgotten the pattern lock on my Nothing mobile and I need help to recover it without losing any data. I'm not sure which methods to try. Ideal skills and experience for the job: - Expertise in mobile data recovery - Experience with Nothing mobile devices - Proficiency in bypassing pattern locks without data loss - Prior experience with mobile troubleshooting and repairs - Understanding of security protocols on mobile devices The freelancer can suggest and use the best-suited data recovery tools.

    $71 Average bid
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    4 bids

    I'm in search of 5 passionate and competent tech business partners to embark on an exciting, collaborative journey in the tech world. The roles include: - Software Developer - Game Developer - Software Designer - AI Developer - Software Engineer - Cloud Engineer - Cybersecurity Expert - Data Scientist - DevOps Engineer - Blockchain Developer - Machine Learning Engineer - UX/UI Designer - IoT Specialist - AR/VR Developer This is a unique opportunity where monetary investment is not required. What we need is your time, passion, and dedication to help our team create innovative technology that has the potential to make waves on a global scale. If you're interested, please feel free to DM me or check the specific roles needed at the link below: %20&%20Competent%20Volunteers%2...

    $84 Average bid
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    16 bids

    I'm seeking a skilled web developer to create an information website about therapy services. The site should include: - Therapist profiles: A comprehensive listing of various therapists, their qualifications, specializations, and availability. - Types of therapies offered: Detailed descriptions and information about different types of therapies, catered to various needs and preferences. - Client testimonials: A section for client reviews and experiences, which can help build trust and credibility. Experience in developing similar platforms or information websites would be highly advantageous. The ideal candidate should also have a good understanding of UX/UI principles to ensure the site is user-friendly and accessible to all. Add an integrated appointment booking system.

    $20 / hr Average bid
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    43 bids

    We are looking to hire an experienced developer with proficiency in Python, C++, and Java to create a Forex bot with built-in automated trading. While the script for interacting with trading platforms has not been specified, having the knowledge to deal with potential API integration or web scraping will be highly beneficial. Key Responsibilities: - Develop a Forex bot with automated trading functionality - Employ your coding skills proficiently in either Python, C++, or Java, or in all three languages - Be prepared to work on a project where the interaction with the trading platform is not yet defined Ideal Skills and Experience: - Proven experience in Python, C++, and or Java - Previous work on developing Forex bots or similar - Ability to work with APIs and perform web scraping if nec...

    $1521 Average bid
    $1521 Avg Bid
    95 bids

    Job Description: Full-Stack Shopify Developer for Custom E-Commerce MVP Position: Full-Stack Shopify Developer Location: Remote Employment Type: Full-Time Contract: 4-week Project (with potential for extension and conversion to Full-Time Permanent Role) About TAKSHILA: Takshila is the world’s first peer-to-peer (P2P) digital infrastructure company, pioneering a revolutionary approach to connect manufacturers, artisans, and craftsmen directly to Western retail markets in a fully automated and decentralized manner. Leveraging advanced technologies like Distributed Ledgers and AI, we elevate the shopping and business experience for all stakeholders by eliminating inefficiencies in supply chains. Our platform delivers infinite customization, high-quality materials and craftsmanship, ...

    $1290 Average bid
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    140 bids

    I'm on the lookout for an Intermediate-level Java Trainer with 1-4 years of experience, particularly in delivering face-to-face, offline classes at colleges in Chennai. Your main focus will be teaching Core Java concepts, with a keen emphasis on practical, hands-on learning. Key Responsibilities: - Lead engaging, interactive lab sessions where students can gain practical experience in Java programming. - Develop and implement diverse hands-on activities, including Coding Exercises, Project-Based Learning, and Case Studies. - Provide individualized support to students, with the assistance of a hired aide, to resolve doubts and enhance their understanding. - Design and update the curriculum to keep up with the latest Java trends and technologies. - Evaluate and grade students' cod...

    $14 / hr Average bid
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    5 bids

    I'm looking for an Android developer to enhance the user onboarding experience of my app. The onboarding process should be sequential and incorporate tooltips and hints. Key Requirements: - Implement sequential onboarding - Designing and integrating tooltips and hints - Incorporating user engagement elements within the tooltips and hints. This includes quizzes or mini games, call-to-action buttons and pop-up messages Ideal Candidate: - Proven experience in Android app development - Expertise in designing user-friendly interfaces - Prior experience with user engagement elements within app onboarding - Ability to deliver high-quality work on time. The goal is to increase user onboarding rate and improve overall user experience.

    $13 / hr Average bid
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    17 bids

    I'm looking for a freelance developer to create an AI-based Customer Relationship Management (CRM) system integrated with TeleCRM and capable of automating our digital marketing efforts. Key Features: - Customer Relationship Management: The primary function of this system is to manage customer interactions, track sales, and oversee our marketing campaigns. - TeleCRM Integration: The CRM system should seamlessly integrate with TeleCRM and Auto dialer - AI Functionalities: The CRM needs to leverage AI for various tasks including: - Automated Data Entry and Processing: The system should minimize manual data handling, ensuring efficiency and accuracy. - Predictive Analytics and Insights: The CRM should provide forecasts and actionable insights to help drive our strategy. - Customer...

    $1440 Average bid
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    28 bids

    I'm looking for a Junior Level Android Developer Pakistan based. While specific tasks have not yet been determined, It is simple work of coding. I need a person who may work for long term in android apps I need work at low budget but for long term

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

    Develop a custom Kotlin Android application for the game Arimaa. This involves implementing a single custom composable to manage and render game elements on an 8x8 board, with specific rules and interactive features. Below are the tasks broken down into groups to ensure organized and testable development. Project Tasks: Group 1 (20%) Create a single activity with a custom composable to manage Arimaa gameplay. Ensure the composable is square in design and renders an 8x8 board with trap squares. Implement the initial game state with a fixed setup of pieces: Back row: 8 rabbits. Row in front: pieces in the following order: cat, dog, horse, camel, elephant, horse, dog, cat. Group 2 (40%) Track the history of board states after each move and prevent duplicate states. Allow players to make 1...

    $120 Average bid
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    8 bids

    Problem we want to solve: professional fishermen currently capture their scores on a piece of paper and as one can imagine that poses various issues with things getting lost, not able to read peoples hand writing and then waiting a few days for results or someone to manually capture results in a spread sheet and sending all the info. We want to create an Mobile App / Website that is hosted in AWS, driven with serverless lambda functions that stores the data in a dynamo db that only has one write replicate and about 2 read replicas. Where these scores are captures are also locations where there is intermittent to no signal and therefore will have to use some sort of local cache that will upload the captured data as soon as it can. This would then mean that participants will be able to see ...

    $23 / hr Average bid
    NDA
    $23 / hr Avg Bid
    32 bids

    I'm looking for an experienced software developer to create a mobile application for Android. This project has the potential to evolve from simple tasks to multi-million dollar ventures, so I value a developer who is not only skilled but also adaptable and forward-thinking. Key Requirements: - Extensive experience in Android mobile application development - Proficiency in software development and coding - Strong problem-solving skills and creativity - Ability to communicate effectively and work collaboratively - Vision for potential project expansion Ideal Skills: - Java and Kotlin programming languages - Understanding of Android SDK and Android Studio - Knowledge of UI/UX design principles for mobile - Familiarity with software development methodologies (Agile, Scrum) - Experience ...

    $542 Average bid
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    95 bids

    I'm looking for a software developer who can create an extension for an existing offline productivity app. This extension should incorporate multiple AI functionalities, particularly image processing and generative AI features. Discretion is paramount, as the specifics of the app and its enhancement need to be kept confidential. Key Responsibilities: - Extending an offline productivity app - Integrating various AI throw API key - Ensuring the AI can generate content like images, and code and then put it all together and make frontend Ideal Skills and Experience: - Proven experience in software development, specifically in creating extensions for offline apps - Proficiency in AI integration, particularly with image processing and generative AI - Strong understanding of productivity...

    $315 Average bid
    $315 Avg Bid
    7 bids
    video game develop
    19 hours left

    develop a number guess game, will have wheel of fortune function, players able to voice chat and message with each other, the players able to change the music of the background. need the game designed good with background and everything. we will develop English and Chinese version. will be able to play on PC and smart phone. Apple (iOS) and Android, Windows (Microsoft).

    $2576 Average bid
    $2576 Avg Bid
    45 bids

    I'm looking for a skilled developer to create two Telegram bots for me. The first bot will be a shilling bot, used for promoting in groups and via direct messages to users within those groups. Key Features for the Shilling Bot: - Capability to shill in groups - Join multiple groups - Ability to send direct messages to users - Frequency control: I should be able to select the frequency of messages, for example, sending a post every minute to a chosen set of groups The second bot will be responsible for scrapping users and adding them from both public and private groups. Ideal Skills: - Strong expertise in developing Telegram bots, specifically for shilling - Proficient in Windows-based environments - Experience with user scrapping and group interaction bots - Knowledge of both pub...

    $186 Average bid
    $186 Avg Bid
    11 bids

    I’m seeking an experienced IoT developer who can assist in programming an ESP32-S3 to communicate with a cloud server. The device should be able to send structured sensor data to a RESTful API endpoint using secure and precise HMAC-based authentication. Below are the main requirements for the project: Key Project Requirements Device Setup and Communication: Platform: ESP32-S3 (programming with Arduino IDE or PlatformIO preferred) NTP Synchronization: Accurate time synchronization with an NTP server to ensure correct timestamping API Integration and Secure Communication: API Method: POST requests with JSON payload to send sensor data HMAC-SHA256 Authentication: Generate signing keys based on deviceSigningKey and current date Create a canonical request and compute final signatures a...

    $146 Average bid
    $146 Avg Bid
    17 bids

    I need a developer to create a Java Archive (JAR) or an API that can convert a set of JPEG images into a single PDF file. The images will be sourced from a remote server and should be downloadable after conversion. Key Requirements: - Convert JPEG images sourced from a remote server into a single PDF. - Ensure the PDF is downloadable post conversion. - No specific order for the images, just the default sequence they are retrieved in. Ideal skills for this project include: - Proficient in Java with experience in JAR file development. - Understanding of API development. - Familiarity with image processing and PDF generation in Java.

    $83 Average bid
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    30 bids

    I need a solution that prevents writing to my DynamoDB table constantly in order to manage costs. Key Requirements: - The system should reject any write operation attempted on the table. - The implementation should be robust and reliable. Ideal Skills: - Proficiency in AWS DynamoDB. - Experience in cost management strategies in cloud services. - Knowledge of implementing write operation controls in databases.

    $23 Average bid
    $23 Avg Bid
    9 bids

    I'm in search of an experienced Android developer to assist in creating a utility app. The app will require specific functionalities including user authentication, payment processing, and push notifications. Key Responsibilities: - Develop and implement a utility-focused Android app - Incorporate user authentication, payment processing, and push notifications - Utilize AdMob strategically to maximize revenue generation The ideal candidate should possess: - Extensive experience in Android app development - Strong knowledge and expertise in AdMob - Proven track record of creating revenue-generating apps If you are an Android developer with a knack for creating engaging, utility-based apps and a deep understanding of monetization through AdMob, I would love to hear from you.

    $78 Average bid
    $78 Avg Bid
    8 bids

    I am seeking a seasoned developer with substantial experience in Java, Scala, Spark, and Angular to modify an existing project. The modifications will be necessary for both the frontend and backend of the application. Backend Modifications: - The primary focus will be on feature additions. This will mainly involve data processing enhancements, so a strong understanding of big data and Spark is crucial. - You will need to create new APIs or endpoints as part of these feature additions. Frontend Modifications: - The frontend will be built on Angular, so proficiency in Angular is a must. Modifications will involve implementing the new features designed for the backend and ensuring a seamless user experience. Ideal Candidate: The ideal candidate will have a robust full-stack development bac...

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

    I'm seeking a seasoned coder with extensive knowledge in Java, Scala, and Spark to enhance the maintainability of my existing codebase. Ideal Skills: - Proficient in Java, Scala, Spark and Angular Material, MS SQL - Proven experience in code optimization - Strong understanding of code maintainability principles Main Tasks: - Optimize existing code to improve its maintainability.

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

    I'm looking for a Junior Level Android Developer Pakistan based. While specific tasks have not yet been determined, It is simple work of coding. I need a person who may work for long term in android apps I need work at low budget but for long term

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

    I'm looking for an Android developer to create a calculator that computes the area of various shapes and plots 2D diagrams based on line dimensions. Key Features: - Area calculation for an unlimited variety of shapes - 2D plot drawing according to line dimensions - Manual input method for shape dimensions - Customization options for shape dimensions and properties - Ability to save and load previous calculations - Automatic unit conversion (e.g., metric to imperial) - Real-time updates of area as dimensions are changed - Generate detailed reports with measurements and plots Ideal Skills: - Proficient in Android development - Strong understanding of geometry - Experience with developing interactive applications Please be prepared to provide examples of similar projects you've ...

    $52 Average bid
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