Hire the best JavaScript Developers in Konotop, UA

Check out JavaScript Developers in Konotop, UA with the skills you need for your next job.
Clients rate JavaScript developers
Rating is 4.8 out of 5.
4.8/5
based on 9,782 client reviews
  • $40 hourly
    Hello!👋 I’m a Lead Shopify developer specializing in the creation and customization of merchants’ themes using Shopify Liquid. I can create public/private Shopify apps from scratch. I have experience managing a team of several developers to achieve clients’ goals while keeping direct communication with clients’ teams. My expertise includes creating layouts, web pages, and web interfaces using JavaScript, HTML5, and CSS3. Additionally, I have a strong background in using Bootstrap to create pages with pixel-perfect layouts and experience in code optimization/minification to speed up page loading. My competence areas include: 📌 Increase page loading speed and performance 📌 Implementing adaptive, cross-browser compatible page layouts with HTML5 / CSS 📌 Creating optimized JavaScript functionality 📌 CSS preprocessors LESS, SASS (SCSS) 📌 DOM, AJAX, and JSON technologies 📌 Optimize the development process using modern tools 📌 Leading and managing the team of developers Technical Proficiencies: ✔ Languages: JavaScript, Shopify Liquid ✔ User Interface: Shopify Polaris, React.js, Vue.js, Bootstrap, HTML5, CSS3, SASS/SCSS, Less, Ant Design, Material UI, Emotion, Styled components, Tailwind CSS ✔ CMS: Shopify, OpenCart ✔ Build Tools: Webpack, Gulp ✔ Tech Audit: Lighthouse, Google page speed ✔ Version control system: GitHub, GitLab Let's create new great products together!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Liquid
    Web Development
    Shopify Apps
    Bootstrap
    Shopify Theme
    PSD to HTML
    Git
    gulp
    Theme Customization
    Theme Development
    Shopify
    Sass
    HTML5
    CSS 3
  • $38 hourly
    Hello! I am a front-end developer with 9+ years of experience in creating layouts using JavaScript, HTML5, CSS3, and web page building. I am skilled in creating and customizing Shopify themes, developing Shopify application interfaces, and supporting stores and apps. My experience includes using Bootstrap to create pages with pixel-perfect layouts. I create semantic HTML layouts to improve SEO metrics and use HTML code optimization/minification to speed up page loading. In addition, I have experience in building UX-oriented design systems. My competence areas include: ✔Creating and customizing Shopify themes ✔Developing Shopify application interfaces ✔Technical support of Shopify stores and apps ✔Implementing adaptive, cross-browser layouts ✔Creating pages with pixel-perfect layouts using JavaScript, HTML5, CSS3, AJAX ✔Converting Figma/PSD to HTML/CSS ✔ Troubleshooting, bug/error fixes. ✔ Creating optimized JavaScript functionality ✔ CSS preprocessors: LESS, SASS (SCSS, Stylus. PostCSS ✔ DOM, AJAX, and JSON technologies ✔ Gulp - web application build tool ✔ BEM - methodology Let’s discuss how we can start working together!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    CSS 3
    HTML5
    Git
    Bootstrap
    Website Maintenance
    Front-End Development
    Shopify Theme
    Ecommerce
    Shopify Apps
    Shopify Templates
    Liquid
    Shopify
    Theme Customization
    Theme Development
  • $42 hourly
    Hello, thank you for visiting my profile! I am a software engineer and technical leader with 20+ years in IT. I specialize in developing web applications and e-commerce services using PHP, Laravel, and JavaScript. I have experience working on high-load projects and developing and maintaining web projects based on micro-service architecture. I am well versed in configuring, deploying, and maintaining web applications and implementing and improving application features by collecting and analyzing business requirements and customer feedback. My expertise includes: - Experience in designing the architecture of various web applications - Development of applications that withstand heavy loads - Optimization of projects, without stopping customer service - Conducting project analysis - Ability to work in a team and manage a team of developers - Experience of long-term cooperation (2+ years). - Experience installing servers from scratch and their configuration, creating local hardware servers and virtual machines. Languages: PHP, XML, JavaScript Frameworks: Laravel, Phalcon, Symfony Version control system: Git Data storage: MongoDB, MySQL, Redis, Memcache OS: Windows, Linux, Mac Libraries and frontend development: JQuery, Bootstrap, HTML, CSS
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Shopify Apps
    XML
    SQL
    Laravel
    Object-Oriented Programming
    Git
    jQuery
    Database Design
    PHP
  • $20 hourly
    I have over 6 years of experience in various programming languages and technologies, self-motivated and responsible team member. My engineering background as a bridge construction specialist helps me to understand customer needs and problems better. I enjoy solving complex engineering challenges and seeing the results of my work. Additionally, I contribute as a back-end Node.js mentor on the Team Challenge platform to help junior devs get their first experience.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    API Development
    TypeScript
    RabbitMQ
    Redis
    Google Cloud Platform
    Microsoft Azure
    AWS Development
    Linux
    Docker
    ExpressJS
    NestJS
    PostgreSQL
    MongoDB
    Node.js
  • $40 hourly
    👋 Hello, thank you for visiting my profile! I am a software engineer and technical leader specializing in developing web applications and e-commerce services using PHP, Laravel, and JavaScript. I have extensive experience developing OpenCart and Shopify apps. I am well versed in configuring, deploying, and maintaining web applications, implementing and improving application functionality by collecting and analyzing business requirements and customer feedback. My expertise includes: 📌 Developing applications using PHP, Laravel, and JavaScript; 📌 Designing and maintaining RDBMS (PostgreSQL, MySQL) and NoSQL (Redis, MongoDB) persistence layers; 📌 Designing and developing High-load systems and apps; 📌 Conducting project analysis and managing a team of developers; 📌 Experience installing and configuring servers and creating local hardware servers and virtual machines; 📌 Configuring and technical support web applications and databases. Let's create new great products together!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Shopify
    Shopify Apps
    NGINX
    Laravel
    MySQL
    MongoDB
    Redis
    PHP
    webpack
  • $38 hourly
    Hi, my name is Dmytro! 👋 I am a front-end developer specializing in creating responsive, adaptive and cross-browser compatible pages with HTML, CSS, and Javascript, creating shops on Shopify/Shopify Plus, developing and customizing Shopify themes, templates. My expertise is focused on: ✅ Shopify Store Development and Setup ✅ Shopify theme development and deployment. ✅ Shopify theme customization. ✅ Liquid templates. ✅ Figma/PSD to HTML/CSS/Shopify ✅ Plugin integrations (variant swatches, sliders, countdown timer, zoom, shipping calculator, etc.) ✅ Troubleshooting, bug/error fixes ✅ Interaction with REST API’s My advantages: ⭐️I'm a frontend developer with almost 2 years of experience in projects of varying complexity. ⭐️I'm a person who follows modern development practices and new technologies. ⭐️I’m working with a team of professional developers from Eastern Europe, located in Ukraine. ⭐️My focus is a dedication to quality pixel perfect, adaptive pages and expert development. ⭐️I do my best to apply the most siutable technology stack in your project. Let's work together and start bringing your project into life!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Shopify Apps
    Shopify Theme
    LeSS Framework
    Front-End Development
    Shopify Plus
    Shopify
    CSS
    jQuery
    Liquid
    Theme Development
    CSS 3
    HTML5
    Theme Customization
    HTML
  • $30 hourly
    𝐀𝐓𝐓𝐑𝐀𝐂𝐓𝐈𝐕𝐄, 𝐅𝐀𝐒𝐓, 𝐏𝐑𝐎𝐅𝐈𝐓𝐀𝐁𝐋𝐄 I help businesses like yours create or improve websites. Specializing in this I improve the visual component of your website and the user experience of your customers by helping your business grow and make more money. 🚀𝐂𝐔𝐒𝐓𝐎𝐌 𝐃𝐄𝐕𝐄𝐋𝐎𝐏𝐌𝐄𝐍𝐓 🚀 Creating a unique theme, adaptation of a ready-made template, optimization of the site or its maintenance. Any of these tasks will be solved in the shortest time possible 💰 𝐓𝐑𝐀𝐍𝐒𝐏𝐀𝐑𝐄𝐍𝐓 𝐏𝐑𝐈𝐂𝐈𝐍𝐆 💰 *𝘗𝘳𝘪𝘤𝘦𝘴 𝘳𝘦𝘧𝘭𝘦𝘤𝘵 𝘮𝘺 𝘳𝘢𝘵𝘦 𝘰𝘧 $29.99/𝘩𝘳 1️⃣ Page Customization: 10-12h per page Includes changing section behavior, changing colors, content, section order, adding or creating new sections for a page 2️⃣ Theme optiomization: 20h-30h Did you know that it is not the beauty of the site that influences your purchase, but its speed and usability ? It is to increase your sales I have created this package. It includes analyzing the site, finding spots to optimize and attacking to improve pagespeed metrics 3️⃣ Maintenance: Custom hours Keeping your site running smoothly is essential. I offer regular updates, bug fixes, and performance improvements to ensure your store remains efficient and reliable. Customizable to fit your needs. 4️⃣ Custom theme development: from 80h For a unique and personalized store, custom theme development is the way to go. I will work with you to create a theme from scratch that aligns with your brand vision and functionality requirements, ensuring a standout presence in the market. 🥇 𝐖𝐇𝐘 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄?🥇 🏆 Top 10% on Upwork. ✅More than 5 years of work in this field ✅Best practices of front-end and shopify developments ✅Honest and transparent work ✅Responsibility to work ✅High quality service ✅Aimed at the success of my clients ✅Tailored solutions based on your unique needs 📈𝐆𝐄𝐓 𝐀 𝐏𝐑𝐎𝐅𝐈𝐓 𝐁𝐎𝐎𝐒𝐓 𝐖𝐈𝐓𝐇 𝐌𝐄📈 It is important for every e-commerce business to keep up with the current trends and requirements for their website. By working with me, you can ensure that your site is not only visually appealing but also optimized for maximum conversions and profitability. Together, we will analyze your current setup, identify areas for improvement, and implement effective strategies to boost your sales and enhance user experience. 🔍𝐊𝐄𝐘𝐖𝐎𝐑𝐃𝐒 𝐓𝐎 𝐅𝐈𝐍𝐃 𝐌𝐄:🔍 E-commerce, Shopify Expert, Theme Development, Custom App Development, Liquid Template Language, Shopify API, Storefront API, Shopify Plus, Responsive Design, User Experience (UX), User Interface (UI), Payment Gateway Integration, Shopify Scripts, SEO Optimization, Performance Tuning, Shopify App Store, Multi-Channel Sales, Inventory Management, Custom Plugins, Conversion Rate Optimization (CRO), Analytics and Reporting, Dropshipping Integration, Third-Party Integrations, Mobile Commerce, Shopify CLI, Webhooks, JSON-LD for SEO, Headless Commerce, Shopify Admin API, Dynamic Checkout, Localization, Multi-Language Support. 🔥 𝗖𝗹𝗶𝗰𝗸 "𝗜𝗡𝗩𝗜𝗧𝗘 𝗧𝗢 𝗝𝗢𝗕" 𝘁𝗼 𝗸𝗶𝗰𝗸𝘀𝘁𝗮𝗿𝘁 𝘆𝗼𝘂𝗿 𝗻𝗲𝘄 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗿𝗶𝗴𝗵𝘁 𝗻𝗼𝘄! 🔥
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Web Development
    Front-End Development
    Page Speed Optimization
    Ecommerce
    Liquid
    Shopify Development
    Shopify Website Design
    Shopify Plus
    Shopify Apps
    Shopify Theme
    Shopify
    Web Design
    PHP
    CSS
  • $30 hourly
    I have rich experience of Web and Blockchain development. Experience in Blockchain, NFT, Smart contracts, Flow, Ethereum, Solana, Cadence.  Support on projects, code review, Smart contracts review, working with Flow Blockchain. Communication will be in Jira, Confluence. Work according to Agile.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Blockchain
    Bot Development
    Node.js
    C#
    C++
    React
    Python
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