How to become a java backend developer jobs

...history and impact of 35 inventions originally designed for people with disabilities that have now become widely used. These inventions will be in the context of sociatal evolution that drove the innovations to come to fruition. To bring this project to life, I need an experienced writer with a passion for technology, history, and social impact. Do NOT bid the general ghostwriter bids for this. I basically need about 20 hours of work (I think) to generate the content from ChatGPT and validate the resources. I will do all the editing. Key Requirements: - Develop content using the provided outline, including the 35 inventions, four transition chapters, and the introduction. - Utilize ChatGPT to generate the content, ensuring it ...

I am seeking an experienced game developer who can design an adventure-themed mobile game. To bring my vision to life, I would like the game to have a old school pixel art syle style. The ideal candidate should provide: - Experience in adventure game development for mobile platforms. - Proficient in creating and incorporating pixel art graphics. NES ,SNES, GAMEBOY Aesthetic or More in line with the moden pixel art style of Terraria , with charm to it. - Strong understanding of game play-meets-storyline integration. The right freelancer will aid in developing a game that is both visually appealing and engaging with an immersive adventure storyline. I look forward to seeing your portfolios, along with examples of similar works complet...

I need an advanced web application developed. This application will include complex user interactions and data processing. Technical requirements include: - Expertise in Angular for frontend development - Knowledge of Spring Boot for application framework operations - Proficiency in Java Persistence API (JPA) for managing database operations Ideal candidates should have proven track record in building complex, dynamic and interactive web applications using these frameworks. Understanding best practices for each of these frameworks is highly desirable.

I am in need of a WordPress website developer to create a 3-4 page static site for my company. Key Requirements: - No specific theme: I don't have a theme in mind, so I would rely on your expertise to choose a suitable one that aligns with my business and design preferences. - Primary purpose: The site will be used to provide information about the company, its services, and other essential details. It should be structured, easy to navigate, and visually appealing. Skills and Experience: - Proficiency in WordPress: You should have significant experience in developing WordPress sites, especially for business purposes. - Design Skills: A good eye for design and aesthetics is crucial in order to ensure the sit...

...experienced developer who can build a completely custom database website that primarily serves as a customer relationship management (CRM) tool. In addition to the standard CRM functionalities, I'm looking for the following: - Expertise in complex Java and YAML scripting - Ability to create custom database scripts - Proficiency in API integration for seamless data transfer and communication - Prior experience in designing and implementing CRM front-end and back-end relations The most crucial aspect of this project for me is the user interface design and experience. I want a website that not only functions efficiently, but also looks and feels intuitive for users. I'm looking for someone who: - Is an advanced-level develo...

I'm looking for an experienced app developer to build a classified app for both iOS and Android platforms. Key Features: - Messaging system - Photo & Video sharing Ideal Skills and Experience: - Proven experience in building social networking apps - Proficient in app development for both iOS and Android - Strong understanding of user experience and interface design - Ability to integrate messaging and media sharing functionalities Please provide examples of similar apps you have developed in the past. A detailed proposal outlining your approach to developing this app will be appreciated.

I am seeking an experienced Solana developer proficient in Python scripting for cryptocurrency trade automation. Tasks Involved: - Develop a smart contract on Solana blockchain to execute buy/sell orders. - Blockchain integration with the targeted cryptocurrency exchange - Raydium. - DApp development for seamless trade execution. Please note, the script should be developed for immediate execution of buy/sell orders on Raydium. At this moment, there are no specific indicators or conditions to consider before executing the order. Preferred candidates would have a track record of developing similar projects. Prior experience with Raydium integration will be a plus. No need for fancy interface, just need it to work seamlessly and quickly. L...

Need someone to help design the checkout buttons for paypal, need to include some custom information so can be later retrieve by IPN or similar. Please only apply if you have worked with Paypal check out Start your bid with "I paypal"

in your Bid, clearly answer this questions: 1. how many years of experience do u have? 2. Are you an independent freelancer? 3 do you know how to fix sql injections? - Give 2 example of how to fix sql injections in forms 4. what are the ways you can secure a payment api to protect it from spamming charges- considering that the api information is secured and spamming is not happening by any registered users but through external users 5. what are the ways you can protect smtp apis to protect from email spamming?- considering that the api information is secured and spamming is not happening by any registered users but through external users 6. What are the ways you can show thousands of data on a page? how will you impl...

I need a dev to translate a JS script to Python, bonus if you have Paypal integration experience Start bid with "node python"

Develop and maintain the mobile app on iOS and Android platforms Build a scalable and secure backend infrastructure Integrate third-party APIs and services Collaborate with UI/UX designers to ensure a seamless user experience Perform thorough testing and debugging

Hi guys we have a MERN stack website spillword.com. We would like to add the following functionalities within the subdomain Add : Same design, functionalities, credit system etc as fireflies.ai. Nothing needs to change. Including the left sidebar. You can use the html and page ripper to develop the frontend. Pls view this video for further clarification. Please bid the exact amount you'll charge for this and the time required.

I'm looking for a Java expert who can deliver within a week. The endeavor includes two main tasks: 1. Develop a New Application - Here, you will be put in charge of creating a new robust Java application from scratch. I'm counting on your creativity and technical proficiency to build an application that works smoothly and effectively. 2. Debug and Enhance Existing Application - Besides the creation, your responsibility will also include debugging and optimizing an existing Java application. To clarify, the improvement should focus on: * Application Performance: You need to examine and identify performance bottlenecks in the application, then implement suitable optimizations to make it run more effi...

... The project is to develop a marketplace for iOS, Android, and web, tailored for influencers and companies to book and offer advertisement services. It will support popular platforms like Instagram, Snapchat, TikTok, Twitch, etc.. The app will use a coin system as its currency, allowing users to book or offer advertisements. A transaction fee will be implemented for revenue generation. Users should be able to withdraw earned money. 2. Features 1. Influencer and company profiles for booking and offering advertisement services. 2. Support for multiple platforms (Instagram, Snapchat, TikTok, Twitch, etc.) for a wide range of advertising opportunities. 3. Transaction system using a virtual currency 'Coins' along with...

The target is to write a Java, console program (public static void main) that will generate a docx Word file. Program needs to use docx4j library () Programm needs to generate many parts: Heading1, Heading2, Heading3, every with some content (lorem ipsum) Make a table of contents (showing on which page is a given Heading1, Heading2, Heading3 - not hard coded, but detected) Heading1 --Heading2 ----Heading3 ----Heading3 --Heading2 ----Heading3 ----Heading3 Heading1 --Heading2 ----Heading3 ----Heading3 --Heading2 ----Heading3 ----Heading3 In the text put links to a concrete Headings, eg. "read in Heading2 - abc (page 4)" - it should be link to this section and "(page 4)" should Ma...

## Flutter Mobile App Developer (Gaming/Gambling Profitability) - One-Time Fee Are you comfortable working in the gaming/gambling profitability niche? We're seeking a talented Flutter developer to create a complete mobile app for both Android and iOS platforms. This is a one-time project with a **fixed fee paid upon successful completion**. **Project Details:** * Develop a mobile app based on a provided design and prototype. * Utilize Flutter framework to ensure a seamless cross-platform experience (Android & iOS). * Implement all functionalities outlined in the design and prototype. * Ensure smooth user experience with intuitive interface and navigation. * Follow industry best practices for code qua...

I'm looking for a Selenium expert with strong experience in Python/Java to develop comprehensive and effective Selenium tests for our web application. Key Requirements: - Proficient in Python/Java: Ideal candidate should have a strong command on Python/Java programming language. - Selenium Expertise: Demonstrable experience in creating selenium tests for web applications. - Web Application Focus: Experience with testing web applications is a must. - CI/CD Understanding: While not required, familiarity with Continuous Integration/Continuous Deployment (CI/CD) pipelines would be a plus. - Attention to Detail: Ability to meticulously craft test cases and identify and report bugs is crucial. Your responsibilities will...

I'm in need of a skilled blockchain developer to collaborate with me on an Ethereum-based project. The ideal candidate should be well-versed with Ethereum blockchain development and have experience with DApp creation and smart contract implementation. Key Responsibilities: - Development of smart contracts tailored to the project's needs. - Creation of a decentralized application (DApp) with seamless integration and functionality. - Implementing payment integration and ensuring secure transaction processes. - Enabling smart contract interactions within the DApp to enhance its usability. Skills and Experience: - Proven hands-on experience with Ethereum blockchain and its development tools. - Solid understanding of smart contracts and dec...

...interested in saving money by renting objects instead of buying, with people who have unused objects and who want to earn extra money. We are a Brazilian startup starting an online platform. Perhaps the scope of the project and all the information are not in the best shape, but we have done our best so far to help anyone developing it. What we need Pages developed in ReactJs according to the Figma project and documentation in Notion, using the best practices in the development market. We accept suggestions for adjustments and improvements to the project. Maybe the Figma project doesn't have the best structure because we're beginners, but we've created a way to make it easy to identify the tasks. Our platform will...

I'm in need of an experienced individual who can work on mechanical design, specifically industrial design, for tools and equipment. Key requirements: - Proficiency in mechanical/industrial design, especially for tools and equipment - Strong understanding of design principles - Capable of translating ideas into functional and aesthetic designs Ideal skills and experience include: - Background in industrial design - Experience with tool and equipment design - Proficiency in relevant design software Attached is the brief document.

Need a dev to advise on building the checkout buttons for my website, I'd prefer to use the pre-built butons for check out however I'm still looking to see how to include some custom information such as user details (for digital goods). Then on the receiving end either use IPN or similar to process that. You will need to talk me through what are the options, further work could be optional. Start your bid with "I do paypal"

...for a Dafny developer to support me in the completion of existing code. I need him to pass verification of the code by the instructions exactly. it requires knowledge in proofs, using lemmas. Key Responsibilities: - Complete existing code in Dafny - Conduct code verification and ensure it passes successfully - Ensure the code is coherent and properly structured Requirements: - Proficient in Dafny - Extensive experience with complex algorithms and data structures - Able to work with well-documented code and project requirements - Strong problem-solving skills - Excellent communication skills, as we will need to discuss certain parts of the code Prior experience with similar projects and a good track record of successfully completing Da...

...for a senior freelance SEO consultant to work on an annual SEO project for a well-known small appliance brand in the United States, which is part of an international group. The website is an e-commerce site. This profile will work integrated into the SEO team for AMERICA that the client has formed, along with other management and technical members so that teamwork will be an essential condition. The project is a global project where each region has its strategy, but all must go hand in hand. The consultant will become part of our network of freelancers, with the possibility of participating in other projects for which a profile like theirs is sought. What do we offer? - The possibility of joining a multicultural team and working in the...

I'm seeking a Laravel Livewire developer who has experience working with the Ultimate POS script. The primary task involves adding a ledger report feature to the existing system. This report should include specifics on debit and credit transactions. Key Requirements: - Prior experience with the Ultimate POS script - Proficiency in Laravel Livewire - Strong understanding of accounting principles The Ledger Report: - The ledger report should have a user-friendly interface and should be able to filter transactions based on specific criteria. - Transactions should be classified as either debit or credit, which should be reflected in the report. Deliverables: - A functional ledger report integrated into the Ultimate POS script with the ab...

I am...experienced Python Django developer to take care of the back-end work for a web application intended for specific industry professionals. The required functionalities include: - User authentication and registration: Candidates should have experience implementing secure user authentication and registration systems. - Database integration and management: We need someone with proficiency in integrating and managing databases, ensuring smooth operations for user data handling. - API Integration: Expert skills in API integration are required to establish seamless communication between applications. Your primary goal is to build a strong, reliable backend for our professional web app. We need an expert who can ensure excellent function an...

Creating a comprehensive dashboard for our POS (Point of Sale) system involves several key components and technologies. Here’s a detailed outline of the project requirements and the ideal skills needed to build the solution: Project Overview The goal is to develop a dashboard for an existing POS and inventory management system that consolidates sales and collection reports, provides inventory management, and includes customer data analysis. The dashboard should be accessible via web browsers and mobile devices. Key Features 1. Sales Reports o Daily Sales Report: Display daily sales data with graphical representation. o Monthly Sales Report: Display monthly sales data with graphs. o Annual Sales Report: Display yearly sales data with graphic...

I'm currently in search of a Python developer with specific expertise in data insert and search in vector data based on keyword * custom logic which i will brief in DM Budget 6,000 INR Day - 1 Day Task

I'm experiencing multiple performance issues with my WordPress site hosted on a Virtual Private Server (VPS), which has plenty of resources (8 vCPU / 12GB of RAM, SSD). The problems include: - Consistently slow loading times on the front end - High server CPU usage, which I suspect is leading to the slow loading times - Database connection errors - Posts in the backend are taking a considerable amount of time to load I haven't made any recent changes to the site, such as installing new plugins or updating the theme, which could have caused these issues. I need a skilled professional who can dig into these issues and improve the overall performance of my site. Ideal skills and experience for this job include: - Extensive experie...

As the project manager, I'm scouting for an adept Java Developer who is not only proficient in object-oriented programming but also has substantial knowledge related to databases. The right fit would possess the following: - 5+ years of experience in Java Development. - Strong background in object-oriented programming. - Significant experience with databases. - Hands-on experience with the React framework. In addition, the developer should be prepared to operate in the evenings. If you're the one I'm looking for, your agile working method will prove very compatible. This is a great opportunity for someone who wants to become an integral part of my team.

I'm in need of a skilled Swift Engineer to work on a variety of projects with me on a long-term basis. Your primary tasks will be centred around mobile app development, particularly for iOS devices, and will involve using the latest Swift and XCode versions. Key requirements include: - Solid understanding of Swift programming and XCode - Experience with pushing apps to the App Store - Willingness to work during EST time for at least 3 - 5 hours The apps created will have a diverse range of functionalities, including user authentication, push notifications, and in-app purchases. They will cater to a broad audience, ranging from the general public to business professionals. The ideal candidate for this position wil...

I'm in need of a skilled Android developer to help create a Telegram clicker bot application. The bot should be able to perform various interactions within the Telegram app, primarily for mining purposes. The main functionalities the bot should have include: - **Automated Clicking:** The bot should be able to click on specific buttons within the Telegram app. - **Mining:** This is the main function, the bot is expected to mine in the app. The ideal candidate should have: - Proficiency in Android app development. - Experience in developing Telegram bots. - Knowledge of mining capabilities. The project is to be completed within a reasonable time frame. Please provide examples of previous similar projects.

I'm seeking a skilled blockchain developer with expertise in Solidity programming and Ethereum Virtual Machine (EVM) for the development of a decentralized application (dApp) with DeFi functionalities. We want to build this: With some changes: - colors, branding - different EVM blockchain (Base) I have the codebase, and the contract. What I need is: - for you to modify codebase for new contract, and new design. - host it (on Netlify, or something similiar if you think it is better). Or explain me how to host it. - assist me with testing on testnet.

Become a Business Catalyst: Business Consultant Do you thrive on helping businesses reach their full potential? We are seeking a highly skilled and experienced Business Consultant to join our team. The ideal candidate will have a strong background in business strategy, process improvement, and project management. Key Responsibilities: • Conduct thorough business analysis to identify opportunities for improvement. • Develop and implement strategic plans and initiatives to achieve our goals. • Provide expert advice on business process optimization and efficiency improvements. • Collaborate with cross-functional teams to ensure alignment and effective execution of business strategies. • Prepare detailed report...

I'm looking for a PHP expert to handle several minor tasks on my website. Key Responsibilities: - Implementing links from images to other pages. - Making the odd amend to the site - updating google maps code The work is quite straightforward and doesn't involve any major development. It's more about making small changes and ensuring the website works smoothly. Ideal Skills: - Strong PHP development skills. - Proficiency in HTML, CSS, and JavaScript. - Experience with integrating links and implementing simple changes. - Ability to understand existing code and make small tweaks. If you're a PHP developer who can quickly and efficiently manage these minor tasks, I'd love to hear from you. This may lead to...

I'm seeking a skilled C# .net developer to improve the performance of my application. - Scope: The project involves fine-tuning the existing codebase, optimizing database queries, and enhancing the overall performance of the application. - Skills: The ideal candidate should have a profound understanding of C# .net development, experience in performance optimization, and a strong grasp of database management. If you're proficient in identifying bottlenecks and implementing solutions to boost system speed and efficiency, I'd like to hear from you. Please share your past relevant experience.

Mujhe ek software developer ki need h Jo ki c# and php language dono Janta ho aur wo developer 10 year experience ho Mera part time work h USS pe kaam krna h main ushko 30k monthly duga agar koi developer ho to msg kare mujhe

I'm looking for a skilled developer who can create a custom app for me. I'm open to discuss this with the right candidate. Key requirements: - App development experience - Strong problem-solving skills - Ability to work independently - Good communication skills Please apply with your portfolio, and a brief description of why you think you're the right fit for this project.

We are looking for a skilled and experienced Javascript web game developer to create a casino slot game frontend. The ideal candidate should have a strong understanding of Javascript, as well as experience with for game development. The main responsibility will be to develop the frontend of the casino slot game, ensuring smooth and engaging gameplay. The developer should be able to create interactive game features, handle animations, and integrate sound effects. Attention to detail and a passion for creating high-quality games are essential. Collaborating with the backend team to integrate the game with the server will be required. Required skills: - Experience in developing casino slot games. ...

...for a skilled Angular developer to help me with an upcoming project. Your main tasks will be focused on the front-end, data modeling, and business logic development, with a timeframe of less than a month. Key Responsibilities: - Building user interfaces: You should be able to create clean, responsive, and intuitive user interfaces using Angular. - Developing data models: You will be responsible for designing and implementing data models that can efficiently handle and manage the project's data. - Implementing business logic: You must be able to translate business requirements into technical solutions, creating the necessary functions and processes within the Angular framework. Ideal Candidate: - Proficient in Angular: You should h...

I'm looking for a skilled Flutter developer to create a mobile application for both iOS and Android. I'm open to discussing the main functionality of the app with the chosen developer. However, I am particularly interested in including some key features like user authentication, push notifications, and in-app purchases. My ideal professional for this project would have experience in developing Flutter apps that are compatible with both iOS and Android, as well as integrating the mentioned features seamlessly. A good understanding of UI/UX design principles would be a plus. Please feel free to reach out to me if you believe you are the right fit for this project. Thank you.

...of an experienced Visual C# developer with expertise in User Interface (UI) design and database integration. The ideal freelancer for this project should have: - Proven experience in Visual C# programming - Ability to create a clean and minimalist user interface. - Proficiency in database integration, specifically with handling user data and profiles. Main tasks and features include: - Developing an intuitive and minimalist UI using Visual C#, to ensure easy navigation and optimal user experience. - Integrating the system with a database that handles user data and profiles. This includes setting up, managing, and maintaining the database to ensure its smooth operation. This project requires a successful blend of programming skills and...

Develop a chatbot with a web chat interface using the Llama 2 7bn LLM model to assist users in resetting their passwords. The chatbot will interact with users to collect verification details (employee number, name, date of birth, boss's name, and last four digits of cell number) through a structured conversation. The system will validate user inputs against an API and terminate the conversation after three invalid attempts. Upon successful verification, a text message with the new password will be sent via an external API. The project will include creating APIs for future speech input/output integration, ensure response times under 1.5 seconds, handle multiple simultaneous users with unique identifiers, and provide customizable response messag...

I need a mobile site. I already have a design for it, I just need it to be built.

I am in need of a full stack developer proficient in and Payload headless CMS. You will be responsible for the development and maintenance of a website, with the specific requirements to be communicated. Key Responsibilities: - Developing a website using - Integrating Payload as the headless CMS - Ensuring the website is responsive and user-friendly - Implementing any additional features as required Ideal skills and experience: - Proficiency in and Payload headless CMS - Strong understanding of front-end technologies: HTML, CSS, JavaScript - Experience with user authentication, content management, and e-commerce functionalities - Previous work with informational/educational websites, e-commerce, or portfolios is an added advantage - Proven track reco...

I'm looking for a Drupal-focused developer to develop a patch for the Flag module. The patch needs to provide a "Flagged Entity" relationship within a User View that refers to content that a User has flagged. This relationship can then be used to filter and contextual filter the User View results by this flagged entity. A use case is outputting a view list of users who have flagged a specific node. The above relationship would enable a contextual filter of "Content ID", and the view results would be based on that node's ID from this contextual filter. Key Notes - This new relationship must be usable within a User View. - You will need to setup you...

I am in need of an experienced Flutter developer who can inject a fresh, improved user interface and experience into my app. This involves primarily a complete app layout redesign to make it more intuitive. That said, your prowess in color scheme modification and font style changes will also be beneficial. In addition to this, I am presently battling performance issues and functionality errors in my app. Therefore, your ability to identify and resolve such issues will greatly enhance the project outcome. Lastly, I intend to introduce new features into the app, hence, your experience in developing and integrating novel features into existing apps will be a great asset. Key Skills: - Flutter development - UI/UX design - Debuggi...

I'm in urgent need of a cross-platform mobile app developer to create an app that would work seamlessly on both iOS and Android. Key Project Requirements: - The app needs to be developed for both iOS and Android platforms. - The project should be completed as soon as possible. - I am particularly interested in seeing your past work to gauge if you are the right fit for this project. Potential candidates should have: - Experience in developing cross-platform mobile apps, preferably with Flutter or similar technologies. - A proven track record of delivering high-quality apps in a timely manner. If you believe you are the right fit for this project, please share your past work with me in your application.

...looking for an experienced and reliable PHP developer to integrate a new payment provider (CCBill) into our existing ecosystem. This system includes various APIs built with PHP 7.4, Symfony and MySQL. Requirements: - Extensive experience with PHP, specifically PHP 7.4 - Familiarity with integrating payment providers - Experience working with Symfony framework - Experience with MySQL databases - Familiarity with complex API ecosystems - Reliability and professionalism Project Details: - Scope: Integrate a new payment provider into our existing system, ensuring seamless functionality - Timeline: Expected duration and deadline can be discussed - Communication: Regular updates via preferred communication channels (email, zoom or skype) Budget: To...

I'm seeking a Roblox game developer who can create a dance game that's both engaging and competitive. - Target Audience: The game is primarily aimed at teenagers, so it should have the kind of appeal that resonates with this age group. - Features: I'm looking for a developer who can implement a variety of dances and perhaps even incorporate a dance move library. - Interactivity: I want the game to be competitive, so the ability to create a system for competitive dance battles is critical. Knowledge of Roblox game development and an understanding of game design principles are essential for this project. Experience in creating games for a teenage audience would be a plus. The budget for th...

I'm in need of a skilled MERN stack developer to help me address some issues in my existing project and to add a new feature. Project Details: - **Fix Database Connectivity Issue**: Currently, there's a problem with the database connectivity in the system. This needs to be fixed urgently. - **New Feature Addition: User Authentication System**: I'm looking to add a user authentication system to the platform. Specifically, I want to set up an 'Email and Password' based login system. Ideal Skills: - Proficiency in MERN stack development - Proven experience in fixing database connectivity issues - Strong expertise in implementing secure user authentication systems, especially 'Email ...