JavaScript is one of the most popular programming languages in the world. If you are looking for a website to be created with sophisticated interactivity or in search of an impressive mobile app, using JavaScript is the way to go. With the help of our expert Javascript Developers, you can bring your idea to life.

A Javascript developer on can create dynamic web applications with extended features and improved user experiences. They can also design advanced gaming applications, develop cloud applications, and create powerful websites that work with less coding and low complexity.

Here's some projects that our expert Javascript Developers made real:

  • Developed interactive websites & apps with detailed user accounts experience
  • Created powerful applications that streamline complex data into actionable insights
  • Built custom Windows and Mac software designed to fit client specifications
  • Developed mobile apps that enables customers to access data from their phones
  • Connected databases to web interfaces with easy input/output functionality
  • Optimized existing code for faster loading pages and smoother user workflows

Javascript Developers on know how to turn ideas into reality. They are experienced professionals dedicated to excellence and creating top-notch scripts that are easy to use, reliable and fast. If you have an idea but don’t know how to turn it into technical reality, is the place to post your project. Hire our expert Javascript developers today!

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    733 仕事が見つかりました。次の価格: USD

    I am looking for full stack developer freelance who having experience into laravel, react js, nodejs for client based requirement and looking for long term work. Happy bidding

    $346 (Avg Bid)
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    Quero montar um site estilo Zoom, Buscapé, Bom de Faro. Que puxe por uma API os produtos e divulgue no meu site.

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    Hi, I need to make an Android-based movie ticketing APP. Where users can select the cinema and accordingly tickets will be generated. Also, I need a dashboard to monitor how many tickets are sold in a day with multiple filter options.

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    I am looking for a freelancer who can integrate the Razorpay gateway into my already built WordPress website. The website is an education course website and we are trying to implement Razorpay for general payment purposes. Skills and Experience Required: - Strong experience with WordPress development and customization - Knowledge of payment gateway integration, specifically with Razorpay - Familiarity with PHP and JavaScript - Attention to detail and ability to troubleshoot any issues that may arise during the integration process

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    As part of my graduation project, I need to build a website. The main purpose of this website is to support my graduation project. The freelancer should have good knowledge of web design, web development, HTML, CSS, JavaScript, and any other needed applications to complete the project. Please let me know if you are interested in helping me out with my project. im on a budget and cant afford high interest since im a student the website will be using AI for database

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    Se busca desarrollador en entorno MOODLE con conocimientos en PHP, MYSQL, CSS, HTML y JAVASCRIPT. Para más información contáctame y te envío el documento con todas las tareas a realizar. El documento que te voy a pasar está en ESPAÑOL, por lo que si estás interesado en el proyecto deberás de traducirlo.

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    school website 6 日 left

    I am looking for a skilled web developer to create a school website that meets the following requirements: Specific Features: - Online registration for new students - An events calendar to keep parents updated on school activities - News and announcements section to share important information Target Audience: - The website will primarily target parents, who will use it to access important school information and stay informed about events and announcements. Content Prioritization: - The website should prioritize academic information, such as curriculum details, class schedules, and teacher profiles. Skills and Experience: - Proficiency in web development languages such as HTML, CSS, and JavaScript - Experience with content management systems for easy website updates - Knowledge of resp...

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    Hello Everyone. Thank you for paying attention to my project. I have one existing react native project that is using React Native push notification. This project is using one signal push notification service. But I would like to configure the notification service as I want. I want to send notification to specifical users. Currently it is sending notification to all users(devices) now. How can I configure this? If you have perfect solution for this, I will give you another tasks too. For this, you need to do a call with my CTO. Thanks.

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    React Expert 279 日 left

    I am looking for a React expert to assist me with a project that requires high complexity API integration and data fetching. Specifically, I need the following features and functionality: - API integration and data fetching - Authentication and user management The ideal candidate should have experience in the following: - React and its related libraries and frameworks - Strong understanding of API integration and data fetching - Previous experience with high complexity API integration The deadline for this project is within a month.

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    I am looking for a professional to convert an existing website code into Golang. The current code is written in PHP, and conversion should give equal attention to all parts of the code without any specific functionality or part needing higher attention. I would like the whole process to be completed within 3 months. If you are skilled in JavaScript, Python, and PHP as well as Golang, please do not hesitate to bid on this project.

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    need to develop facebook messenger bot in node js 2

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    I am looking for a skilled developer who can build multiple components in and integrate the Twitter API to get and post user tweets. The ideal candidate should have experience in the following: Components to build: - Navigation bar - Image carousel - Contact form Design: - The client has provided a mockup for the design of the components, so the developer should be able to follow the provided design. Twitter API integration: - The client wants to be able to retrieve and post user tweets using the Twitter API. Skills and experience needed: - Proficiency in and React.js - Experience in building and styling components - Familiarity with API integration, specifically the Twitter API - Ability to follow provided mockup designs If you are a talented developer with the required skills and ...

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    موقع فنادق 6 日 left

    I am looking for a freelancer to create a hotel website for my personal use. I want a booking platform that allows users to book hotel rooms online. The website should have multiple pages, including a home page, search and booking page, room details page, and a contact page. Skills and experience needed for this project: - Web development skills, including HTML, CSS, and JavaScript - Experience with booking platform development - Familiarity with hotel websites and their functionalities - Ability to create a user-friendly and aesthetically pleasing website design - Strong communication skills to understand and implement my requirements

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    Custom Form Creation for Mobile-Responsive Website We are in need of a skilled developer who can create a custom form for our website. The functionality needs to be implemented within two weeks and it is crucial that the form is mobile-responsive. Here's the website for reference: Requirements: - Expertise in custom form creation - Strong understanding of mobile-responsive design - Ability to meet the project deadline - Attention to detail and ability to deliver high-quality work Skills and Experience: - Proficiency in HTML, CSS, and JavaScript - Experience with form validation and data submission - Knowledge of mobile-responsive design principles - Familiarity with website development best practices If you have the necessary skills and experience, please submit your proposal al...

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    I am looking for an advanced PHP developer who can assist me with creating custom product templates in WooCommerce. i don't need any design work. i would like to add a custom function in my woocommerce website. i want same function the zip code calcualtion. Base on zip code the price and shipping cost will be chnage. same as here . for test you can use 10001 and 30315 as zip code . add "sobuz" word top of your proposal to see you read it. Note: It just not the shipping cost also the price chnage base on location

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    We're looking for 2-3 FULL STACK JAVA DEVELOPMENT WITH SPRINGBOOT AND VUEJS experience Participate in the development of our housing administration system in Java Spring boot - Participate in the process of merging our housing sales and administration system into a unified system - Solving support tasks that require a programmer - Participate in operations and onboarding to the extent necessary We imagine that you: - Has 5+ years of experience as a programmer, including as a Java programmer - Understands and can write SQL statements and knows the difference between an inner and an outer join (We use MariaDB/MySQL) - Has experience working in Vue.js on the front end. You will initially primarily work in Vue, b - Has experience working in Jira (and preferably also a little ) - Willing...

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    I am looking for a freelancer who can help me troubleshoot and debug the implementation of my Langchain Typescript ConversationalRetrievalQAChain project. Skills and Experience: - Strong knowledge and experience in developing conversational retrieval models - Proficiency in implementing TypeScript frameworks - Familiarity with question-answering chains - Expertise in troubleshooting and debugging existing code - Deep understanding of PromptTemplate and ConversationalRetrievalQAChain

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    I am looking for a freelancer who can create a basic HTML/JavaScript editor that allows me to insert specific tags. It needs to be Sveltekit and use tailwindcss for style, (if you dont know taildiwndcss its code, thats not a deal breaker) Specifictation: I need to create a basic editor, probably editable div, user can type anything but when they type @, you will need to show them a list of suggested tags to be added to the editor at the exact cursor position. if user types "@t" for example, you will need to only show tags starting with t and so on. the tags can be added anywhere in the editor, even if there is text before or after it. the inserted tag should be a non editable span or something like that, it should have a small x to remove it, but also user should be able to dele...

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    Project Title: Create an api to download Pinterest videos and images Overview: I am looking for a skilled developer to create an API that allows users to download Pinterest videos and images. The API should be able to handle multiple downloads at once. Preferred Programming Language: The choice of programming language is flexible and can be based on the developer's preference and expertise. Options include Python, JavaScript, and PHP. Required Skills and Experience: - Experience in developing APIs and working with web scraping techniques - Proficiency in the chosen programming language - Familiarity with the Pinterest platform and its API Application Requirements: When applying for this project, freelancers should include their relevant experience in developing APIs and working wi...

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    API integration to a website 6 日 left

    API Integration for Data Analytics to Collect User Data Skills and Experience: - Strong experience in API integration and data analytics - Familiarity with various analytics software, such as Google Analytics and Adobe Analytics - Ability to suggest and recommend suitable analytics software based on project requirements - Proficient in collecting and analyzing user data to gain insights and improve website performance - Understanding of user experience principles and ability to implement improvements based on collected data Project Overview: We are looking for a skilled freelancer to integrate an API for data analytics into our website. The primary goal of this integration is to collect user data and gain insights to improve website performance. The ideal candidate should have experien...

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    Integrate Shopify Website to Google Merchant Center Skills and Experience: - Experience with Shopify and Google Merchant Center integration - Knowledge of product data management and data feed optimization for Google Merchant Center - Familiarity with Google Shopping campaigns and feed rules - Ability to troubleshoot and resolve any issues related to the integration process Project Requirements: - The client is looking to integrate their Shopify website with Google Merchant Center. - The goal of the integration is to improve visibility and product data management. - The client is open to suggestions and does not have any specific requirements at the moment. - The freelancer should provide recommendations and suggestions for optimizing the integration. - The freelancer should ensure tha...

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    I am looking for a WordPress PHP/JS expert who can help me with some complicated issues in my custom WordPress site. Specific Issues: - Theme customization I have a list of specific issues that I need help with and I am looking to have them resolved within 24 hours. Ideal Skills and Experience: - Strong experience with WordPress PHP and JavaScript - Knowledge of theme customization and plugin conflicts

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    I am seeking assistance in creating a contact form that allows prospective clients to submit their information. Upon submission, I intend to utilize the provided data to initiate a request to Transunion's API for a credit report. Subsequently, I would like to forward this data to Zapier, where our mortgage calculator will process it and trigger an email to be sent to the prospective client. I will personally manage the Zapier integration aspect of this project. What I require is the development of a user-friendly contact form with approximately four fields and the implementation of code that can seamlessly transmit user input from the contact form to the Transunion API. Ideally, I am looking for someone with prior experience working with the Transunion API, as familiarity with this A...

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    I am looking for a TypeScript developer with experience to help me set a value to an input field in a protected iframe element (TypeScript Code in Chrome Extension). Specific requirements for the project: - Must have experience working with TypeScript - Familiarity with Chrome Extension is required - Knowledge of working with protected iframe elements is a plus Project deadline: - The completion of this task is required within 24 hours If you have the necessary skills and experience, please bid on this project. Thank you.

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    Keycloak Configuration Help Needed on My Server I am looking for assistance with integrating Keycloak with my existing systems. The ideal candidate should have experience with Java programming language and be able to complete the task within a week. Requirements: - Experience with Keycloak configuration and integration - Proficiency in Java programming language - Familiarity with existing system integration - Ability to troubleshoot and debug any issues that may arise Deadline: Within a week

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    Website Work 6 日 left

    Responsibilities: 1. Develop and maintain interactive, user-friendly web applications using JavaScript and jQuery. 2. Collaborate with cross-functional teams to define, design, and ship new features. 3. Write clean, efficient, and well-documented code. 4. Debug and resolve technical issues reported by clients or internal teams. 5. Optimize web applications for maximum speed and scalability. 6. Stay up-to-date with industry best practices and emerging technologies. Requirements: 1. Proven experience in JavaScript and jQuery development. 2. Proficient understanding of web markup, including HTML5 and CSS3. 3. Strong knowledge of front-end frameworks and libraries. 4. Familiarity with RESTful APIs and AJAX. 5. Good understanding of cross-browser compatibility and accessibility standards. 6. S...

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    add ads.txt on ejs script 6 日 left

    Project Title: Add on ejs script Overview: I am looking for a skilled developer who can help me add on my ejs script. The project involves accessing the website's backend or server and making the necessary modifications. Requirements: - Experience with ejs scripts and website backends - Knowledge of implementation and configuration - Familiarity with accessing and modifying backend or server files Skills and Experience: - Proficiency in JavaScript, HTML, and CSS - Previous experience in working with ejs scripts - Strong understanding of website backend development - Knowledge of implementation and configuration Deliverables: - Successfully add on the ejs script - Ensure proper functionality and integration with the website Note: The URL of the website will be provided manual...

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    Make a php script that can connect the our google ads account with credential file (json for example). When logged in to the account, provide the following functions: 1) List all available campaigns, mark if active or inactive, show the name and identification 2) Show all products inside a given campaign with identifier from first call. From products show name, identification, if its active or not, all metrix PPC volume etc. 3) The option to disable a product in a given campaign 4) The option to activate a product in a given campaign All answer can be just on a JSON or Array answer. The script will be used in console.

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    Please make a PHP script that connects via Google Auth to the merchant center: - Show a list of all available feeds ( product feeds) - Show all available products - Change a price of a product inside the feed - Make an action to tell the merchant center the reread the feed - Make an action to reload the data just read by the feed The two last actions could also be bundled in one. All answer can be just on a JSON or Array answer. The script will be used in console.

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    Title: React Native - Datepicker Color Change I am looking for a React Native developer who can help me change the color of the datepicker in my Android app. Specific Color: - The color should be #8FBD12. Scope of Change: - The color change should only be applied to the specific datepicker element and not affect any other datepickers in the app. Deadline: - The deadline for this change is within a day. Ideal Skills and Experience: - Strong proficiency in React Native development. - Experience with Android app development. - Knowledge of working with datepickers in React Native. - Attention to detail and ability to implement precise color changes. - Ability to meet tight deadlines. If you have the necessary skills and can complete this task within the given timeframe, please submit y...

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    I am looking for a freelancer who can create CSS code to input into an HTML file in order to create a learning journal in a Scorm file. The project requirements are as follows: This used to work, but it is now not working, so maybe the code needs updating Layout: - The desired layout for the learning journal is a single column. Color Themes and Design Elements: - I have specific colors and elements in mind for the design of the learning journal. Browser and Device Compatibility: - The CSS code needs to be compatible with specific browsers or devices. Ideal Skills and Experience: - Proficiency in CSS coding. - Experience in creating layouts for learning journals. - Knowledge of browser and device compatibility. - Good understanding of design elements and color schemes. Please provide ...

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    one of the 6 日 left

    Typing Work Project Description: Skills and Experience Required: - Proficient in typing - Knowledge of one or more programming languages such as Python, JavaScript, or PHP Project Details: - The project requires typing work - Approximately 1-10 pages of typing work is needed - The desired format for the typed work is not specified - The work can be in a Word document, PDF, or plain text format Note: Please provide the desired format for the typed work.

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    I am in search of a freelancer capable of automating multiple tasks within a timeframe of 10 hours or less. The specific tasks I intend to automate are as follows: STEP 1 Visit a webpage on the website STEP 2 Copy the entire content of the visited page. STEP 3 Proceed to ChatGPT. STEP 4 Instruct ChatGPT to generate a 2000-word SEO-optimized blog post that has the potential to go viral, drawing inspiration from the content of the visited page. STEP 5 Request ChatGPT to create 500 variations of the aforementioned 2000-word SEO-optimized, viral-worthy blog post. Compile all these blog posts into a single text file, adhering to the format provided during the project, as illustrated in EXAMPLE FORMAT 1. EXAMPLE FORMAT 1: (The format will be provided during the project....

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    web software 6 日 left

    I'm looking for an experienced team to develop web software for me. In particular, I need functionality for data analytics and reporting. I'm not sure about the platform or technology that should be used to build it, so I'm open to suggestions. Lastly, I'm looking for a project that will take at least 3 months to complete. If you have the skills and experience to create a comprehensive web software solution with analytics and reporting features, please get in touch. I'm eager to hear your ideas and learn more about what you can do for me.

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    #1 sistema de contrato 6 日 left

    projeto modular online para cadastro de cliente para minha loja. Feita com javascript react, C# e mysql. Nesse projeto, pode utilizar banco fake, pois sera conectado ao meu banco posteriomente sera basico, mas preciso da entrada do dados: nome, empresa, serviço e mensalidade.

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    I am currently working on a website that requires integration of the WhatsApp API with the PHP Code. My current platform is a custom PHP platform, and the API must be integrated for both messaging and file sharing on an advanced level; allowing me to send messages, attachments, and carry out specific actions when using WhatsApp on my website. I need someone who is experienced with this kind of integration to help me get the prerequisites in place. This will involve configuring the API that ensures the connection is secure and stable, as well as writing the code that allows me to make use of this feature. I also require the ability to easily update or modify the code in the future, if necessary. If you feel like you have the required skills for this project, please let me know.

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    I need someone to make a generator that is attached to a api everytime i send a request to the api it should response with the X-acf-sensor-data header for akamai BMP 3.3.0. X-acf-sensor-data is found in apps. I want this to work with multiple apps if not possiable then i give you list of apps and you make a generator for each.

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    I am looking for a developer who can help me fix an issue with the Amelia booking plugin coupon codes not working in Google Chrome. The issue is intermittent and occurs specifically in the latest version of the plugin. Detailed Description: - The problem is that the coupon codes are not being applied correctly in Google Chrome. - I have taken screenshots of the issue, which I can provide to the developer for reference. - The issue seems to be specific to Google Chrome as it is not occurring on other browsers. Skills and Experience Required: - Proficiency in WordPress and experience working with the Amelia booking plugin is essential. - Strong knowledge of HTML, CSS, and JavaScript to troubleshoot and fix the issue. - Experience in debugging and resolving issues in Google Chrome...

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    School fees 6 日 left

    Project Title: School Fees Tracking System Description: I am in need of a skilled developer to create a school fees tracking system for our institution. The purpose of this project is to accurately track fee payments made by students, particularly focusing on other fees apart from tuition fees. Requirements: - Develop a user-friendly web-based application that allows administrators to easily input and track fee transactions - Design a secure payment system that ensures confidentiality and integrity of student payment information - Implement a notification system to alert administrators of pending or late fee payments - Generate detailed reports and analysis on fee structures, including overdue fees, outstanding balances, and payment trends Ideal Skills and Experience: - Proficient in w...

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    I am looking for a freelancer with experience in integrating Formidable Forms and WooCommerce for a project involving product configuration. Product Type: - The project involves configuring a service-based product. Specific Requirements: - I have detailed requirements for the product configuration as follows: A formidable form will be used to configure product decoration options. The options will differ depending on the line of product (supplier). For each line of product (covering thousands of products/variants) there will be a different form. Within each line of product, every product has a recommended decoration option and a series of alternative decoration options. This first form will cover just one product line. Development could be done in two stages: 1. A simpler form that ...

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    Fullstack Developer Needed for Web Development Project Skills: Python, JavaScript Timeline: More than 4 weeks We are seeking a skilled fullstack developer proficient in Python and JavaScript for a web development project. The ideal candidate will have experience in developing web applications and be able to work with both front-end and back-end technologies. Responsibilities: - Collaborate with the team to design and develop a web application - Implement front-end features using JavaScript and related frameworks - Develop and maintain the back-end using Python - Ensure the application is responsive and optimized for various devices - Conduct thorough testing and debugging to ensure high-quality code Requirements: - Proficiency in Python and JavaScript - Strong understanding of web deve...

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    @salmanadeem //@version=5 strategy(title="3C Price Action indicator", shorttitle="3C Price Action in", overlay=true) showVWAP = input(title='Show VWAP', defval=true) ema2= input(title='Data 1', defval=false) ema3= input(title='Data 2', defval=true) showhhll = input(title='Real Time HH-LL', defval=true) prd1 = (defval=8, title='HH-LL /Length', minval=2, maxval=100) prd = (defval=10, title='S/R Length', minval=2, maxval=100) maxnumsr = (defval=5, title='Number of S/R', minval=1, maxval=20) - 1 loopback = 200//// float ph = (close, prd,prd) float pl = (low, prd,prd) prdhighest = (200) prdlowest = (200) cwidth = (prdhighest - prdlowest) * 2 / 100 var pivotvals = array.new_float(0) var pivotlocs =

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    I am looking for a skilled Java developer to build RESTful API endpoints for my project. The ideal candidate should have experience in developing RESTful APIs and be comfortable working with Java. Specific requirements for the API endpoints: - The endpoints should be RESTful in nature - The functionalities required for the endpoints are basic in complexity Skills and experience required: - Strong proficiency in Java programming language - Experience in building RESTful API endpoints - Knowledge of best practices and standards for API development If you are a Java developer with experience in building RESTful API endpoints and are comfortable working on basic functionalities, I would love to discuss the project further with you. Please provide examples of your past work and your availabi...

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    I am looking for a PHP developer to make some functionality enhancements to my existing website. The purpose of this integration is to enhance the user experience and increase our social media presence. Requirements: - Experience in integrating Instagram into websites - Knowledge of Instagram API - Ability to showcase products and services through the integration - Proficiency in web development languages such as HTML, CSS, and JavaScript Ideal Skills: - Experience with social media integration - Familiarity with Instagram features such as comments and likes - Understanding of user experience design principles - Knowledge of responsive web design Please include examples of previous work and relevant experience in your proposal. Reference Website

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    create react js website for

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    Looking for angular developer 6 日 left

    I am looking for a 3-4 years experienced Angular developer to assist with a project for an existing business. The project is already under development, but I need additional expertise to ensure its successful completion. Ideal Skills and Experience: - Proficiency in Angular - Strong knowledge of HTML, CSS, and JavaScript - Experience with front-end development and responsive design - Familiarity with RESTful APIs and integration - Ability to work collaboratively and communicate effectively Project Requirements: - Utilize existing wireframes and mockups to enhance and optimize the user interface - Implement functionality and features according to the project specifications - Ensure compatibility across different browsers and devices - Conduct thorough testing and debugging to identify and...

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    Title: Advanced Java Programming Tutor needed for Online Sessions I am seeking a knowledgeable and experienced Java programming tutor who can assist with advanced level concepts. This training will be of 5 days and 7hrs a day Topics and Areas of Focus: - Data Structures: I require guidance in implementing and manipulating various data structures in Java. - Object-Oriented Programming: I need assistance in mastering the principles and best practices of OOP using Java. - Algorithms: I am looking for a tutor who can help me understand and implement complex algorithms efficiently. Preferred Mode of Communication: - Online/Video Call: I prefer to have tutoring sessions conducted remotely, through a reliable online platform or video call. Ideal Skills and Experience: - Strong proficiency in...

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    Chrome Extension for Receiving DCP Cash Payments - Requirements General Explanation: The extension will allow payments with DCP Cash on any desired website. Site identification will be done through one of two options: either a site that embeds identification within it or a domain that is registered and verified in DNS. Upon entering a website, both options will be checked to ensure identification. The extension will display a message upon entering the site (on any page) but only once per visit. Additionally, a payment window will open on the relevant page. Registered users will have the option to fill in the following information on a dedicated website: Domain Page URL for displaying the message (default: entry page of the site, the first opened page) (marked with an asterisk, meaning ...

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    I need someone who reads and follows instructions. Can you do this? Can you design a website like this : What is this website about ? If you do not answer correctly- you will get hired. Just NOT by me.

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    $19 / hr 平均入札額
    178 入札
    Web application 6 日 left

    I'm looking for a talented freelancer to help develop a custom web application in the next month that includes a content management system. I have some specific design requirements that must be followed so a keen eye for detail and experience constructing visually appealing, user friendly sites is a must. The web application should include e-commerce and user registration/login functionality to facilitate user data tracking. I appreciate your help in fulfilling this project!

    $2386 (Avg Bid)
    $2386 平均入札額
    111 入札


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