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    2,000 java interactive web application 份搜到的工作,货币单位为 HKD

    I'm looking for a skilled Shopify developer who can establish a top-notch e-commerce store centered on Nameplate Business. The primary target is individual homeowners. Key Features Needed: - The store should allow customers to review and rate products. These interactive elements can enhance trust and encourage purchases. - Users should be able to create wish lists. This feature will personalize shopping experiences and increase the potential for subsequent sales. - Incorporate a personalized product view feature. This will provide customers with a comprehensive understanding of our products, increasing their confidence in the purchase decision. Skills and Experience: - Extensive experience in Shopify platform - Proficiency in real-time product reviews and ratings, wish list ...

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    As a client in need of an experienced DSA specialist, I have a project requiring mastery in C++ and Java programming languages. This assignment will encompass: - The design and analysis of algorithms - The implementation of data structures Ideally, I'm on the lookout for an expert with proven knowledge and experience in the implementation of the following data structures: - Arrays - Linked lists - Stacks and queues This project requires precision and efficiency, therefore requiring a freelancer who can demonstrate comprehensive understanding and practical usage of these languages and data structures.

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    I am in need of an AI tool designed to generate stories using storytelling artworks, targeting kids aged 3-5 years. This tool should be engaging and weave stories in a playful tone, adding an enriching experience for kids. The chosen AI professional should be proficient to build options allowing both user-generated input and pre-defined story templates. Additionally, the AI should be capable to produce medium-length stories (5 to 15 minutes) maintaining a consistent and enjoyable narrative throughout. Ideal Skills: -Expertise in Artificial Intelligence. -Experience in child psychology or children’s content creation. -Understanding of storyboard creation. -Illustration capabilities will be an add-on. -Strong understanding of creating user-friendly interfaces. Looking for an expert ...

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    Urgent Requirement: Springboot java and postgreSQL Developer

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    web erp, crm application. 已经结束 left

    I want ERP and CRM package software with Saas version standard features and menus. The features I want add python, node js, golang, java, javascript example: The investment I made. I want to receive it as soon as possible. ready package software. or redoing it from scratch. using open source No problem.

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    I want ERP and CRM package software with Saas version standard features and menus. The features I want add python, node js, golang, java, javascript example: The investment I made. I want to receive it as soon as possible. ready package software. or redoing it from scratch. using open source No problem.

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    We are looking for an experienced freelancer to join our team and contribute to the fullstack development of a web-based SaaS application based on MERN Stack. This is a short term project involving working on and refining pre-existing code, and implementing new features using React 18, Redux Toolkit, Material-UI (MUI), MongoDB, , and RESTful APIs. Product details will be discussed with the candidate during onboarding. Key Responsibilities: - Work on enhancing the existing codebase for both Frontend (React, Redux Toolkit, MUI) and Backend (Node, Express, MongoDB). - Derive from the already selected MUI component library and implement Material-UI components for a sleek and user-friendly interface. - Integrate frontend with backend for end-to-end user flows - Implementing func...

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    I need a proficient tester experienced in Java, Selenium and Appium for automation testing of my application's main functionalities: User Authentication, Data Processing and User Interface Interaction. Knowledge in these areas is crucial: - User Authentication: Ensuring correct and secure user login and registration. - Data Processing: Confirming accurate data input, storage, and retrieval mechanisms. - User Interface Interaction: Verifying user interactions are responsive and correctly implemented. Familiarity with Selenium and Appium for automation testing is essential. You will be tasked with creating, executing, and managing tests to ensure the application is performing as expected. Looking for someone who is detail-oriented and can provide regular progress reports...

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    I am in urgent need of an experienced backend developer who's proficient in Java, SpringBoot, and PostgreSQL. The project involves: - Design and develop REST-based web services utilizing Java microservices web frameworks (such as Spring Boot etc.) -Apply design principles and patterns in creating enterprise-level solutions, as needed -Perform web service tuning and performance testing -Engage in code review and feedback process -Take a feature from inception to completion independently across the stack -Collaborate with UX/UI team, Web Frontend Team and Mobile app team. -Participate in and support the entire SDLC processes Experience with similar projects and a quick turnaround time are highly preferred. Please only apply if you have the r...

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    I am in urgent need of an experienced backend developer who's proficient in Java, SpringBoot, and PostgreSQL. The project involves: - Design and develop REST-based web services utilizing Java microservices web frameworks (such as Spring Boot etc.) -Apply design principles and patterns in creating enterprise-level solutions, as needed -Perform web service tuning and performance testing -Engage in code review and feedback process -Take a feature from inception to completion independently across the stack -Collaborate with UX/UI team, Web Frontend Team and Mobile app team. -Participate in and support the entire SDLC processes I need this project completed as soon as possible. Experience with similar projects and a quick turnaround time are hig...

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    ...user interface that effectively employs our existing code for dynamic forecasting. Specifically, the website should have the following features: - Interactive Charts: The site should be able to display charts that are engaging, informative and user-friendly. - Dynamic Forecasting: The integration should allow users to forecast product volumes for a specific item over the upcoming 15 days or a month. The data will be based on our existing sales forecasting code. Key Requirements: - Proficient in both Python and JavaScript. - Prior experience with integrating complex codebases into websites. - Ability to create visually appealing and interactive website interfaces. I anticipate the website to handle less than 1000 users. If you have experience in this area and are co...

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    I'm seeking a skilled freelancer to create a Graphical User Interface (GUI) for my Windows desktop application. Key Responsibilities: - Develop a user-friendly and intuitive interface. - Primarily incorporate input data forms functionality. - Link the GUI with python code at the backend to send the input data and fetch some results after calculation and display it. Ideal Candidate: - Proven experience in GUI development, ideally with Windows desktop applications. - Proficiency in creating forms for user input. - Excellent attention to detail and commitment to creating a user-centric design. - Strong understanding of Windows OS software compatibility. Your objective will be to create a GUI that is not only visually appealing but also incredibly user-friendly and efficient f...

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    I'm in need of an expert who can set up a robust notification system for my web application. The notifications should be able to work seamlessly on both mobile phones and desktops, whether the browser window is open or closed. Key Requirements: 1) Push Notification when web Application is open(Desktop/Phone/Pad etc) 2) In Mobile when WebApplication is not open in any browser then it show alert/notification mobile defaults notification bar & and in desktop if notification access allowed yes then also show in desktop whete the WebApplication is open or not in any browser. - Types of Notifications: I require push notifications to be sent across both platforms. Specifically, the push notifications should be as personalized as possible, akin to the notific...

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    ...Details: (link removed) Requirements: Proven experience in Android app development. Proficient in Java and Android SDK. Familiarity with Android Studio and Git. Strong problem-solving skills with the ability to troubleshoot and optimize code. Effective communication skills for remote collaboration. Ability to work independently and meet project deadlines. Responsibilities: Application Development: Take a lead role in developing Android applications, ensuring high-quality code and adherence to project requirements. Collaborate with the UI/UX team to integrate designs seamlessly into the application for an optimal user experience. Software Testing: Conduct thorough testing of the software application to identify and address any bugs, glitches, or performanc...

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    I need a sleek portfolio created to showcase the profile of a Jiu Jitsu athletes. The profile should include a detailed biography and their competition history. Ideal skills and experience: - Proficient in building interactive, visually appealing portfolios - Strong understanding of Jiu Jitsu or other martial arts - Ability to convey athletic achievements in a compelling manner - Experience working with athlete profiles is a plus, but not mandatory. I am looking for a freelancer who can bring creativity and professionalism to this project.

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    Hello, I'm looking for a JavaScript developer to: - add Java Script functionality to existing html code - implement it on an existing GoDaddy website. Input includes: text, numbers, buttons Output icludes: text, numbers, spider web graph. Project timeline: 13-16 May 2024. Html code will be provided. Access to GoDaddy project website will be provided. Thank you for your time. Specific offers only, please. Christian

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    I'm in need of a skilled developer to cra...parts and purchase the final complete product. Programming Language Requirement: - I have a preference for the website to be built on nodejs. This is to ensure a smooth and efficient operation of the platform. Ideal Skills and Experience: - Proficiency in nodejs for website development. - Strong understanding of e-commerce and online store development. - Experience with building complex, interactive platforms and compatibility checkers. - Prior involvement in UI/UX design is a plus, to create a user-friendly experience. In essence, I'm looking for a developer who can bring to life a sophisticated, yet user-friendly platform for computer enthusiasts. If you have the skills and experience to make this project a success, I'...

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    I'm looking for a skilled developer to create an online exam web application with the following features: - User registration and login - Exam creation and management - Question bank and randomization - Timer and exam duration - Results and grading - Secure data storage - Facial recognition for proctoring - Screen sharing for proctoring - Browser lockdown for proctoring - Support for multiple choice and/or essay questions The ideal candidate should have experience in: - Developing web applications with complex features - Implementing proctoring technologies, especially facial recognition - Data security and encryption - UI/UX design for customizable and flexible interfaces Please share your relevant experience and any similar projects you've worked on.

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    ...PLEASE POST: "I HAVE READ THE PROJECT DESCRIPTION" before bidding. If you do not do this, I will ignore your bid. UPDATE 2: Files will need to be in vector format so I can resize them. Thanks ------------------------------------------------------------------------------------------------------------------------------ I'm in need of high-quality 3D renderings (images) to be used in a mobile application I'm developing for both iPhone and Android platforms. The renderings will not be of architectural, products or landscapes - they will be purely abstract 3D images in various colours. Ideal skills & Experience: - Proficiency in 3D modeling and rendering software - Understanding of color theory to create appealing images - Portfolio of prior 3D renderi...

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    Hey, I'm looking for video editor who can edit these types of videos. I'm looking for something great like:

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    Contact Page Web Design 已经结束 left

    I require a professional designer who can craft an outstanding, easily navigable contact us page. The adept person should have s...designer who can craft an outstanding, easily navigable contact us page. The adept person should have strong expertise in designing e-commerce websites, with significant emphasis on contact pages. Key Project Aspects: - Design a contact us page for e-commerce site. - Include a Contact Form, Phone Number, and Physical address in the contact page design. Ideal Skills: - Proficient in interactive and user-friendly web designs. - Well-versed with current e-commerce platforms. - Excellent communication to understand and implement detailed requirements. Please bid if you possess the above skills and looking forward to crafting an impressive e-comme...

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    I'm looking for a skilled WordPress developer to customize my website. The project involves a mix of design elements and advanced fu...Functionalities: The website will require user registration and profiles, as well as custom user dashboards. I will also need a custom form on the homepage and a login page for users. Ideal Skills: - Proficiency in WordPress development - Strong understanding of user-centered design and UI/UX principles - Experience in implementing and customizing user registration and profile systems - Ability to create interactive and engaging dashboards - Strong communication skills and a proactive approach to problem-solving - Coding expertise for custom form implementation Please include examples of similar projects you've worked on. Looking forward ...

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    I'm seeking a seasoned web developer to create a dynamic live learning website. This site will have several key functionalities. 1. **Post and View Lessons:** I want teachers to be able to post lessons and students to view these posts. 2. **Sign Up & Payment Integration:** Prospective students should be able to sign up, pay for lessons via credit card, and receive a link to the live lesson, which is conducted on Zoom. 3. **User Account Management:** The site should allow users to create profiles, containing basic details. I don't need advanced details or learning path tracking at this stage. 4. **Notification System:** Finally, I require an email notification system to alert users about key actions or updates. The ideal candidate would have experience with pay...

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    I'm in need of a skilled developer to create a web application that will allow users to upload multiple images at once. This is the main function of the application and it's important that it's seamless and user-friendly. KEY REQUIREMENTS: - Development for the Web platform - Primary functionality: Image upload - Allow users to upload multiple images at once SKILLS & EXPERIENCE: - Proficient in web application development - Strong understanding of user experience - Prior experience with multiple image uploads - Ability to ensure a smooth and intuitive interface - Knowledge of best practices for image management on the web

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    I am looking to hire an experienced freelancer with mastery in Java, Spring Boot, and Microservices for my project, which focuses on creating an API backend. The aim of the API backend is primarily managing user behavioral data. Key Responsibilities: - Building an API backend using Java and Spring Boot - Data management; specifically, processing and managing user behavioral data effectively - Implementing microservice architecture to ensure the system's scalability and efficiency Skills and Experience: - Previous experience with Java, Spring Boot, and Microservices is a must - Strong understanding and experience with API backend development - Experience in dealing with user behavioral data management - Comfort in working with microservice architecture.

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    ...offer tour packages. Key functionality requirements include: - Implementing an online booking system that's user-friendly for the convenience of our customers. - Incorporating a section for customer reviews and ratings to boost our credibility and give new clients insights about our packages. - Integrating an interactive itinerary planner to help our customers plan their trips seamlessly. Given the nature of the project, ideally, the freelancer should have substantial experience in web development and UI/UX design, particularly in the travel industry. Understanding the packing journey is essential to adequately cater to our audience. Use of a reliable CMS for easier content and package update will be beneficial. We are also looking for someone who can balance funct...

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    Mobile application 已经结束 left

    I'm looking for a seasoned Python/Django developer to create a clean, minimalistic mobile application. Key functionalities desired: - User registration and OTP authentication - Interface to specify information - Database interaction The design should be minimalistic and clean to ensure smooth user navigation and an aesthetically pleasing experience. Ideal candidates must be proficient in Python, specifically Django, with a strong background in mobile application development and understanding of user authentication processes and database operations. Prior experience working on similar projects is highly preferred.

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    I'm looking for a skilled Java developer who can add an essential feature to my existing web client. Here are my specific needs: - Add a small piece of code to introduce a text input field on my web client. Your past experience in web development using Java will serve well for this project. An understanding of integrating new features into an existing Java code is essential. I'll appreciate if you can make this modification without disturbing the existing functionalities. Perfect for those adept in web front-end development and proficient in coding with Java.

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    My project entails creating a fillable PDF document to systematically gather personal identification details along with specialized roofing and insurance restoration contracting data. Unfortunately, the specifics surrounding the requisite fields weren't identified, but the ideal freelancer will be well-versed in designing PDF forms with customizable fields. Key capabilities required include: - Understanding of fillable PDF forms - Experience in designing-customizable fields - Familiarity with data collation, specifically, personal details and roofing/insurance contracting information Please note that I'm open to consulting with the chosen freelancer on the suitable fields to incorporate based on their knowledge and experience. Your proven skills in creating smart, effectivel...

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    ...of .NET or JAVA development experience  Exposure to Outsystems and/or Appian for Low-Code preferable  3+ years with relational databases  3+ years of MS SQL or MYSQL  1+ years designing and developing REST APIs  Proficiency in C#, .NET, HTML, and/or Javascript  Exposure to JIRA and BitBucket/Git for source control a plus  Practical understanding of data structures, algorithms, and design patterns in a web environment  Cloud first architectures (AWS, Azure, Cloudera, etc.) a plus  Log aggregators (SumoLogic, Splunk) a plus  Experience with SAP, HANA, and/or Vistex a plus  Bachelor's degree in Computer Science, Information Technology or similar  Strong analytical skills to debug complex problems and curiosity/passion for technology  Great underst...

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    Please reply with I am a flexible Rockstar. I am seeking skilled interview trainers to assist in improving interview performance. Ideal candidates should have: - Experirence atlease 5 plus years - Experience in conducting mock interviews. -...Ideal candidates should have: - Experirence atlease 5 plus years - Experience in conducting mock interviews. - Acquaintance with diverse interview formats. - Familiarity with common interview questions. Our focus is on the technology and software industry, so relevant specialty or experience in this sector would be an asset. Frontend Developer backend Developer Fullstack React, Node, Angular, Java, Spring, .Net , SalesForce, ServiceNow, SAP ETC Any IT technology, If you want to earn some parttime Please text I am a Rockstar in so and so ...

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    As a knowledgeable Android Developer, your mission is to build and enhance an educational application that aids instructors and teachers primarily in schools. The main functionalities of this app should include: - Attendance tracking: A feature to help teachers keep a record of student attendance efficiently. - Assessments and results: The ability for teachers to input and track student assessment results. - Multiple question type support: MCQ, True or False, Poll - Offline feature: It's essential that this app remains accessible even without an internet connection This project requires proven skills in Android app development and Java programming only. Any previous experience in developing educational apps would be appreciated. Command over UI/UX design could be a plu...

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    I am currently seeking an expert in JavaScript to assist in enhancing the security of my web application. Key Responsibilities: - Identification and rectification of any potential security issues - Optimization of existing security measures Required Skills: - Comprehensive understanding of JavaScript - Proficiency in managing Application Security - Hands-on experience with web applications - Ability to troubleshoot and optimize security settings Previous experience in handling application security for JavaScript web applications will be a strong advantage. If you meet the above requirements and can deliver high-quality work, I would like to hear from you.

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    I'm in need of an innovative and experienced website developer capable of creating an interactive pools betting website. Key functionality should include: - User registration and login: Secure login options and an impermeable registration system to ensure user data security. - Pool creation and management: Ability to easily create and manage betting pools with various options. This section should be easy to navigate and user-friendly. - Real-time game results and scoring: The platform should be able to update game results in real-time, ensuring that users have up-to-the-minute data. Payment on the site should be accessible exclusively via credit card. We want a relatively simple user profile management scope; the feature should only contain a section for a user name and ema...

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    I need a cover letter for a high voltage substation, maintenance, and turbine engine building job application. The ideal freelancer should be well-versed in electrical engineering concepts. The cover letter should: Only interested in EU job market. Sweden, Germany preferred - Highlight relevant skills in electrical engineering, - Showcase qualifications for maintaining high voltage substations and building turbine engines, - Tailor your experience to the needs of the job and sector, - Make a compelling case for why I am the perfect fit. Telecommunications or energy sector experience could be greatly beneficial.

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    I am seeking a developer proficient in MIT App Inventor to create an educational and user-friendly application relating to animals, suitable for the Android platform. This project would ideally be completed ASAP. Key Features: - The application's main interface should display ten different animal images. - Each image, when selected, should directly link to an external website providing information about that specific animal. The perfect candidate for this job will have: - Proficiency in using MIT App Inventor - An understanding of user-interface design - Experience in working with external website links within apps - Ability to deliver the project quickly and efficiently.

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    I am in need of a React.js development whiz to handle front-end tasks for my upcoming project. The work involves: - Applying your expertise in building a brilliant front-end for my project. I have sketches and examples which I will provide to as...in need of a React.js development whiz to handle front-end tasks for my upcoming project. The work involves: - Applying your expertise in building a brilliant front-end for my project. I have sketches and examples which I will provide to assist with the design. - Showcasing your proficiency in React.js alongside JavaScript and CSS. If you can efficiently translate designs into a working, interactive web interface in a quick manner, you're the one I need. Excellent communication and timely updates on the progress is key for a...

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    A programmer to develop an assessment system as part or integrated to our website through autenticatio...assessment handles specific questions measured individually, per category and as group. Questions should be through multiple options, and fill in the blanks preassigned terms,. Inmedate result should be delivered in a screen response with capability to be exported or downloaded to a PDF. Some other questiones should be integrated essentially from some cases Captivate interactive simulations and Genially or other interactive resources. The system should generates reports and statistics. We need to stablish deadlines, specific technical requirements and integrations. There´s a possibility to have this proyect scalable to some other assessments. But this one is...

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    I am on the lookout for someone with a keen eye for design and experience in Adobe XD to create a prototype from design sketches. The aim is to test user interactions, focusing majorly on buttons and forms. Key tasks include: - Interpretation of provided sketches - Creation of functional buttons and forms - Ensuring all interactive elements are intuitive and user-friendly While I will not be providing specific guidelines for each interactive element, I expect a creative flair in understanding the sketches and the discretion to make informed decisions. Ideal Skills: - Expert in Adobe XD - Experience with button and form UX - Ability to interpret sketches - High level of creativity and autonomy

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    ...need of a seasoned web developer to help me realize my dream of a vibrant, combination reservation and review website for restaurants in Lebanon. It's vital that the design is brimming with color and vibrancy to bring warmth and excitement to the user experience. The essential features of this project include: - User account creation: Users need to have their own personalized space. - Integration with restaurant's availability: Seamless integration with restaurant schedules is required to allow real-time and accurate reservations. - Star-rating for reviews: To provide an unbiased perspective and encourage user participation, a star rating system for reviews is needed. The ideal candidate should have extensive experience in web development, specializing in i...

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    I am looking for a proficient web developer to create a website for interactive quiz for students The site's primary goal is to offer a detailed interactive quiz to the students. The ideal candidate must have: - Proven experience in website development. - The ability to implement interactive quizzes. -experience with react, nodejs, docker and api. The project involves developing a simple interactive quiz site. Features: 1:login for user profile -username and password only 2: homepage : search bar at top and below shows previous quiz taken with results. 3: on search: type keyword and it will connect to open api: open trivia database: and return all question available and it will form the quiz questions. 4: once a quiz is selected, ome questi...

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    I am seeking an experienced web developer to build a website interface displaying interactive nodes made of SVG shapes. The main purpose of this interface is to display, add, and modify text information. The ideal freelancer will have: - Profound experience with SVG and its applications - Skills in the development of interactive web interfaces - Proficiency in user data management Users must be capable of modifying the text nodes directly on the site. Thus, part of the project includes creating a reliable permission system. Having experience in this regard is a plus. I expect the freelancer to have excellent attention to detail, ensuring that users can manipulate nodes without any inconvenience or difficulty.

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    I want an expert to improve the PageSpeed Insights score for my live website, built with Angular 15 on the front-end and Laravel on the back-end. Specific areas of concern include: - Slow loading time, - High Time to Interactive (TTI), - Low First Contentful Paint (FCP). Though I have made attempts to rectify these by compressing images and minifying CSS/JavaScript files, the results are still unsatisfactory. The ideal freelancer should have a proven track record in optimizing website performance, with excellent skills in Angular and Laravel. A deep understanding of Google's PageSpeed Insights is a must.

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    I am seeking a developer to aid in converting an existing 32-bits application to a 64-bits application with modern user interface tailored specifically for the Windows operating system. - Responsibilities include: - Crafting a user-friendly interface. - Making sure the software is fully compatible with the Windows OS. The ideal candidate should have: - Experience in MFC C++ and Visual Studio - Familiarity with Windows operating system. - Strong analytical skills and the ability to work under tight timelines. My ultimate aim through this project is to modernize our current software.

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    I'm seeking a proficient Excel expert to develop an interactive dashboard and implement pivot tables within my project. Key responsibilities will include: - Setting up formulas and functions to aid in data analysis. - Creating a visually appealing, interactive dashboard. - Incorporating ability to filter and analyze data via pivot tables. - Customizing calculations and generating summary reports in pivot tables. The ideal candidate should have a strong understanding of Excel's logical formulas and a knack for complex data interpretation. Extensive experience with dashboard design and pivot table utilization is essential.

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    I'm in need of a skilled course creator who can use multiple formats for my 40-hour security guard course, including: - Video lectures - Text-based modules - Interactive quizzes The course content should ideally be organized in: - Modules/Chapters - Lesson plans - Topics/Sections An essential part of the job includes creating a PowerPoint slide presentation for the course. I appreciate a candidate who is adept at creating engaging and informative content tailored to a security guard audience, with prior experience in course development a major plus.

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    I'm looking for an experienced Unity developer to create an immersive virtual reality experience for Windows, iOS, and Android platforms. The primary objective is : Guided meditation sessions are becoming increasingly popular worldwide. In addition, ...meditation or collectively in a group which mimics being in a yoga class with people around you and an instructor in the front Skills and Experience: • Proficient in Unity • Experience in VR development • Strong knowledge of multi-platform development (Windows, iOS, Android) • Ability to create interactive storytelling within the VR environment. Your portfolio demonstrating past VR projects, particularly those that included interactive storytelling elements, will strongly support your application...

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    I am looking for a developer to create mobile applications for our school. We are a school that teaches computer science to young children, and we want to develop mobile applications to complement our learning program. We are seeking a talented professional who can create engaging and educational applications for our students. I will provide all the details in this short video:

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    I require a competent developer to create a typing test for me, which will be used to evaluate typing speed. The test should consist of randomized sentences and have a duration of 3 minutes. Key skills required: - Knowledgeable in creating interactive tests - Good command of English for the creation of random sentences - Proven track record in developing similar modules Experience in developing educational tools will be a bonus. I value accuracy and the ability to deliver on time. Please only bid if you're able to meet these requirements.

    $47 / hr (Avg Bid)
    $47 / hr 平均报价
    29 个竞标

    I need my Laravel Website transformed into responsive and interactive mobile applications for both Google Play and Apple App Store. Key Objectives: - Enhance the overall user experience for our customers on mobile platforms - To achieve this, key functionalities of the website should be retained in the app, which include: ● User registration and login feature ● Product browsing and purchasing capabilities ● Customer support services I do have specific design and branding requirements for the mobile application which will be shared with the successful bidder. Ideal Skills: - Expertise in Laravel - Proficiency in Android and iOS application development - Good sense of design and branding to align app with the website - Proven experience in creating respo...

    $5584 (Avg Bid)
    $5584 平均报价
    254 个竞标