Hire the best JSON Developers in Kharkiv, UA

Check out JSON Developers in Kharkiv, UA with the skills you need for your next job.
Clients rate JSON developers
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based on 590 client reviews
  • $50 hourly
    Hello Upworkers! I’m Kostya, a Back-End Developer with almost 9 years of experience. I provide a complete Back-end development solution. Working in the digital marketing agency Imaris ​​I settled on frameworks and CMS. You may ask why? Being a high-skilled professional who intends to deliver the best results I'm always eager to work on exciting projects and find the most suitable solutions for my clients! And you know what, the frameworks and CMS are the best choice to complete their wishes and desires. MY SKILLS: PHP, MySQL, REST API, Telegram Chat Bots, Javascript, Ajax, JQuery, Json, XML, HTML, CSS, Webpack, Gulp Frameworks: Laravel, Symfony, Yii2 CMS/E-COMMERCE: Wordpress (WooCommerce), Opencart, Prestashop Looking forward to working with you!
    vsuc_fltilesrefresh_TrophyIcon JSON
    MySQL
    XML
    Laravel
    PHP
    RESTful API
    PHP Script
    Symfony
    JavaScript
    Custom PHP
    WordPress Plugin
    WooCommerce
    Yii2
    OpenCart
    WordPress
  • $30 hourly
    ❗️If you are looking for an implementer for unique 2D and 3d animation, congratulations, you have found it. Urgent work or long-term co-operation - it is to me.🎯 I specialise in animation projects that hit the heart of your target audience. My goal is the complete satisfaction of the client at all stages of work, from communication to the final result 🥇 I am experienced in animation directions such as : -Logo Animation✅ - Lottie and GIF animation✅ -WhiteBoard Animation ✅ -Explainer and Character animation✅ -Template Editing✅ -3D animation✅ -3D modeling✅ Very respectful of client's time and meet deadlines. I am available 24/7 which gives you the opportunity to write to me regardless of time zone. For best results I exclusively use licensed Adobe Creative Suite software (After Effects, Cinema 4d, Premiere, Photoshop and Illustrator) and a powerful high performance computer. Looking forward to working . Regards , Mykola
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    Blender
    3D Animation
    Explainer Video
    SaaS
    Video Animation
    Lottie
    Video Intro & Outro
    Video Editing
    Animation
    Motion Design
    Animated GIF
    2D Animation
    Adobe After Effects
    Motion Graphics
  • $35 hourly
    👋 Animator 5+ years experience, I have created a bunch of incredible animated stickers and emojis that have become a real hit among social media users. My packs have over 12 million installations on Telegram. Also I made explainer videos that increased client conversion rates. ⬅️ Check out my Show Reel video on the left My clients include Telegram Messenger, Depositphotos, QIWI, Crello, MAPS.ME, CloudHospital, Chatex, and various crypto customers. Some of my notable projects include creating animated stickers for Telegram Messenger's popular "Sticker Contest". 🔹 Animated stickers 🔹 Explainer videos 🔹 Promo videos 🔹 Logo animation 🔹 Lottie animation 🔹 GIF Tools: After Effects, Illustrator, Photoshop, Premiere Pro, Cinema4d I look forward to collaborating with you on your next project and delivering high-quality motion design solutions that meet your specific needs Portofolio: behance.net/bodyapositive dribbble.com/bodyapositive 🇺🇦 Thank you for supporting Ukraine!
    vsuc_fltilesrefresh_TrophyIcon JSON
    Lottie
    Sticker Design
    Telegram
    Explainer Video
    Sticker
    Stickers & Emojis
    GIF
    Animation
    Motion Design
    Illustration
    Logo Animation
    2D Animation
    Adobe After Effects
    Animated Explainer
  • $35 hourly
    Hi Upworkers, I will help you to build your iOS app from scratch or help with some refactoring or feature improvement. My experience includes: - 5+ years of experience with iOS platform - experience in object-oriented software architecture, design and programming, design patterns - good understanding of the internals of iOS - testing of iOS applications including writing Unit tests - experience in Multithreading, Networking - excellent written and verbal communication skills - ability to perform in a fast-paced agile environment and work both as a tech lead, a team member, and independently Technical skills: **Programming languages: Swift, Objective-C **Apple Frameworks: CoreData, Core Location, MapKit, Quartz, Core Graphics, Core Animation, Core Location, UIKit (Cocoa Touch), AVFoundation, Core Text, SpriteKit, AudioToolbox, AVKit, Audio Kit, AdSupport, iAd, CoreImage, MediaPlayer, AddressBook, MessageUI, Photos, SafariServices, NetworkExtension, Twitter, Social, SystemConfiguration **External Services: CocoaPods, ObjectMapper, Realm, SDWebImage, Facebook SDK, Fabric, Bugsnag, Stripe, Braintree, PayPal, Tokbox, Socket.io, DaCast, Firebase **IDEs/Development Tools: Xcode **Databases: Realm, CoreData, SQLite, SQL **Source Control Systems: Git **Task tracking: Redmine, JIRA, Teamwork, Trello Please write me and let's work together!
    vsuc_fltilesrefresh_TrophyIcon JSON
    RESTful Architecture
    iOS SDK
    ACS Technologies Realm
    SceneKit
    SOAP
    iOS Development
    Apple Xcode
    Swift
    Unit Testing
  • $45 hourly
    A bright, talented, and ambitious Ruby Developer. I have good knowledge in Web development, from concept to implementation and optimization. I always try to do my best to fit all the requirements of my clients. Looking forward to your messages!
    vsuc_fltilesrefresh_TrophyIcon JSON
    API
    Jira
    Object-Oriented Programming
    MySQL
    Sinatra
    JavaScript
    Ruby on Rails
    jQuery
    Ruby
  • $45 hourly
    If you are looking for a skilled and experienced Ruby Developer, I will be glad to help you. I have extensive knowledge in Web development, from concept to implementation and optimization.I am looking for your ideas and projects.
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    MySQL Programming
    Ruby
    Git
    JavaScript
    Ruby on Rails
    API
    Sinatra
    PostgreSQL
  • $35 hourly
    10+ years commercial development; 9+ years in iOS development; Some projects: Daily Motivation & Inspiration Sing AR Fight (iOS, ARKit, Unity); Language Pal (iOS) Family Economist(iOS,RoR REST Server); Hello Pal (iOS); My Pizza Shop Maker (iOS); Booger Town (iOS); Children Fairy Tails (iOS); Sing or Fight (Windows Phone 7/8) Little Reader Touch (iOS) Spot the difference puzzle with funny stickers for kids and toddlers. (iOS)(Free/Premium) Match Up - Shape Matching Puzzle Game for Kids and Toddlers (iOS) (Free/Premium)
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    iPad App Development
    iOS Development
    Mobile App Development
    Android
    Kotlin
    Java
    Objective-C
    SQLite
    Swift
  • $39 hourly
    I'm skilled Ruby on Rails Developer. Development is my work, my hobby and lifestyle as well. Strong technical skills, resourcefulness and ability to communicate and collaborate effectively are my strong points. I always work hard in order to achieve the best possible result. Looking for ambitious projects that will challenge my developer and problem-solving skills and allow me to continue to develop my knowledge and potential.
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    Object-Oriented Programming
    JavaScript
    Redis
    PostgreSQL
    Git
    API
    Ruby on Rails
    Ruby
    Docker
  • $25 hourly
    Experience with development for iOS platform with SWIFT, cross-platform development for iOS and Android with Flutter/Dart. B2b mobile applications development, game development. Knowledge OOP principles and designing patterns, Xcode and Visual Studio Code working practice. I am constantly striving to learn new technologies and look to ways to better myself in this rapidly changing industry. "Flutter for web early adopter" program participant.
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    Google Maps API
    Redux
    Git
    Mobile App Development
    Android App Development
    iOS Development
    Dart
    Firebase
    Flutter
  • $25 hourly
    More than 15 years of experience in IT project management, international IT business expanding, staff management, establishing partnership. My strong experience in business communications and management, as well as technical and graphical skills allowed to successfully manage and complete hundreds of IT projects through the years.
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    AMP Framework
    Laravel
    Apache Administration
    Angular
    MySQL
    WordPress
    HTML5
    JavaScript
    PHP
  • $50 hourly
    My Description:
 
Hello everyone, I`am purposeful and determined iOS developer with an interest in skillfully crafting creative mobile applications and utilities. I am constantly striving to learn new technologies and look to ways to better myself in this rapidly changing industry. I understand the importance of creating highly readable, reusable and easily maintainable source code. My strengths and skills: - 5 years of successful international IOS Development - Personnel management skills - Quick mastering of new skills - The ability to find solutions to problems where most do not find. - Application of the following frameworks: Alamofire, Material, Firebase, ObjectMapper, SnapKit, Crashlytics, XMLMapper, IDZSwiftCommonCrypto, ArcGis, AppAuth, BearSDK, SwiftUI. Participated in a number of projects through: - Saudi Post - SpeakingHub - ProSapient - Locator - Movement Vault 
My hobbies: - Ches - Programing MC (AVR) - Theatre - Climbing
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    Zeplin
    Jira
    ArcGIS
    API
    Bitbucket
    Encryption
    Asana
    Git
    Marvel App
    Alamofire
    Swift
    Firebase
  • $30 hourly
    Expert web developer with 5+ years of experience. Building high quality websites with modern day technologies. Key skills: • HTML/CSS/JS • NODE/NPM/WEBPACK/REACT • PHP/LARAVEL • MYSQL/MARIADB • WORDPRESS (plugins and themes) • and many more I am happy to provide my services to you starting today!
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    Linux
    API
    Redux
    TypeScript
    Vue.js
    ExpressJS
    Docker
    Landing Page
    Git
    MongoDB
    API Integration
    CSS
    React
    Node.js
    JavaScript
    PHP
    WordPress
    Laravel
    HTML
    Bootstrap
  • $45 hourly
    I have rich experience in creating various software systems using .NET. I always try to do my best to help my clients achieve their business goals with the apps that I create. My English skills are good, both written and spoken. They give me an opportunity to use the client's time efficiently and proceed straight to the point.
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    ASP.NET MVC
    PHP
    HTML
    .NET Core
    Jira
    Git
    .NET Framework
    Microsoft Visual Studio
  • $30 hourly
    Hi there, I'm highly experienced in designing and developing landing pages, websites, and blogs that bring tangible value. Delivering consistent support throughout the entire journey and ensuring clear communication are paramount aspects of my approach. Skills and Expertise: ✓ HTML templating engines: Pug, Haml, Twig, Nunjucks ✓ CSS Preprocessors: SCSS, Sass, Less ✓ Frameworks: Bootstrap, Foundation, Tailwind ✓ JS: Vanilla JS/jQuery library ✓ Project build tools: Webpack, Grunt, Gulp, NPM ✓ CMS: WordPress, Hubspot, Marketo, Salesforce/Pardot ✓ Version Control Systems: GitHub, GitLab, Bitbucket ✓ Design tools: Figma, Sketch, Photoshop, Illustrator, InDesign, Xdesign ✓ Icon Generators: Font Awesome, Icomoon ✓ SEO Optimization: Implementing SEO best practices to boost online visibility and drive organic traffic ✓ Landing pages: HubSpot, Marketo, and SalesForce Pardot ✓ Full Project Management: From conceptualization to execution, I can handle the entire project lifecycle from start to finish ✓ Results-Driven: Focused on delivering solutions that not only meet technical standards but also contribute to achieving business goals and conversions Regular communication is important to me, so let's keep in touch. Highlighted skills: Website Design, Landing Page Design, Front-End Development, HTML, CSS, JavaScript, Responsive Web Design, HTML5, CSS3, ES6, TypeScript, jQuery, Bootstrap, Tailwind CSS, Sass, Less, Webpack, Gulp, Babel, React.js, Angular, Vue.js, Next.js, Gatsby, Redux, Context API, GraphQL, RESTful Services, AJAX, JSON, API Integration, Single Page Applications (SPA), Progressive Web Apps (PWA), Web Accessibility, WCAG Compliance, Cross-Browser Compatibility, Mobile-First Design, CSS Grid, Flexbox, Figma, Adobe XD, Sketch, Photoshop, Illustrator, UI/UX Design, User Interface Design, User Experience Design, Prototyping, Wireframing, Website Optimization, SEO Best Practices, Performance Optimization, Lazy Loading, Code Splitting, Server-Side Rendering (SSR), Client-Side Rendering (CSR), Content Management Systems (CMS), WordPress, Shopify, Web Analytics, Google Analytics, A/B Testing, Version Control, Git, GitHub, GitLab, Bitbucket, Continuous Integration/Continuous Deployment (CI/CD), Netlify, Vercel, Heroku, AWS, Docker, Kubernetes, Agile Methodologies, Scrum, Kanban, Jira, Trello, Confluence, Slack, Asana.
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    HTML
    Web Design
    Web Page
    UX & UI
    Markup
    Email Design
    Email Template
    Landing Page
    Campaign Monitor
    WordPress
    CSS
    PSD to HTML
    Web Development
    Front-End Development
  • $25 hourly
    2D / 3D motion design and animations, motion graphics, character animation, SVG animation (Lottie), intro, logo and VR / AR graphics for footages. Real physics animation, 3D and others actual animation technologies and tricks. This is my all. My main tool is Adobe After Effects and Blender
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    Video Cleanup
    Rotoscoping
    2D Animation
    Animated GIF
    Motion Graphics
    3D Modeling
    Lottie
    Video Editing
    Motion Design
    Animation
    Video Advertising
    Adobe After Effects
    3D Animation
    Blender
  • $30 hourly
    I’m a seasoned Backend WordPress engineer with 6+ years of experience. I worked on different middle and enterprise-level projects. My main motto - Challenge everything! I like to solve complicated tasks and take part in big projects. At the moment, I have good experience with WordPress plugin development, theme development, and building an e-commerce store. WordPress development is my main technology stack, but besides that, I also have experience in developing projects with such a stack: PHP, Woocommerce, Docker, Gulp, Less, OOP, Javascript, AJAX, Composer, GIT, Payment and service integrations. I am looking for exciting and challenging projects in which I can show all my professional qualities, as well as my communication skills. Write me a message, and let’s start a conversation.
    vsuc_fltilesrefresh_TrophyIcon JSON
    MVC Framework
    API
    Search Engine Optimization
    Web Design
    WooCommerce
    AJAX
    jQuery
    CSS 3
    HTML5
    WordPress
    PHP
  • $28 hourly
    Making lottie animations for 2+ years and still love it. Having some skills in web-dev and animation, in 2017 I discovered such a great lib as lottie-web (Airbnb garage project) and started practicing since that time. Now, this is my main specialization. So, I can: ✅ animate in a smooth and elegant style; ✅ make interaction scripts using lottie-web lib; ✅ research new lottie use cases.
    vsuc_fltilesrefresh_TrophyIcon JSON
    Interaction Design
    Adobe After Effects
    Motion Graphics
    2D Animation
    Lottie
    Interactive Design
    Animation
    Web Design
    Logo Animation
    UI Animation
    CSS
    HTML5
    JavaScript
    jQuery
  • $18 hourly
    Additional Information * Developed more than 200 websites, 50 online stores of varying complexity * Team Lead frontend department * Managed a team of 8 people * Working with such companies (Ukrnafta, Roshen, Tesla, Toyota, etc.)
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    Figma
    User Experience
    jQuery
    Bootstrap
    gulp
    npm
    React
    SCSS
    Responsive Design
    CSS 3
    JavaScript
    HTML5
    Sass
    AJAX
  • $8 hourly
    I am a Software Engineer with over a 2 years of experience in backend development, specializing in designing scalable solutions for enterprise projects. My expertise includes integrating advanced AI models with chatbots, developing middleware services, and maintaining high-quality code through rigorous reviews. I thrive on solving complex challenges and delivering impactful solutions. I am eager to bring my skills and contribute to your success.
    vsuc_fltilesrefresh_TrophyIcon JSON
    Kotlin
    Websockets
    Docker Compose
    Core Java
    Apache Maven
    Git
    JUnit
    Mockito
    SQL
    Java Servlet API
    Docker
    Hibernate
    Spring Framework
  • $20 hourly
    Hi! I’m a creative motion designer passionate about creating 2D animations and dynamic video content in Adobe After Effects. My Skills: • Customization and editing of After Effects templates • Logo animation • High-quality slideshows and promotional animations • Infographics and presentations: text animation, banners, charts, callouts • Dynamic video editing: subtitles, graphics, effects • Music track animation: animated posters, music visualizations • YouTube intro/outro creation • Motion tracking: working with moving objects • Green screen removal Why Choose Me: • Friendly communication and fast delivery • I offer unlimited revisions to achieve the best result together • Open to any creative ideas and ready for collaboration I am a professional motion designer with over 4 years of experience specializing in creating dynamic 2D animation, logo animation, motion graphics, and editing After Effects templates. I am committed to bringing fresh and creative ideas to life using Adobe After Effects. I genuinely love what I do and continuously improve my skills, paying special attention to sound design, visual harmony, and meaningful structure. I am open to any creative ideas and ready to collaborate to achieve the best results together. Best regards, Alex
    vsuc_fltilesrefresh_TrophyIcon JSON
    Animated Banner Ad Design
    2D Animation
    Poster Design
    Showreel
    Adobe After Effects
    Presentation Design
    Animation
    Video Editing
    Template Design
    Business Presentation
    Infographic
    Motion Graphics
    Motion Design
    Logo Animation
  • $11 hourly
    Too much interested to put my IT / Programming knowledge to fetch out quality output to needed IT or any sector or person or company . Skills : Android , Php with json,MySQL, HTML5,CSS3, AJAX,Javascript,SQL,API Integration,Java , J2EE , .net with c# I am always ready to accept the challenges in the IT field with the great dedication.
    vsuc_fltilesrefresh_TrophyIcon JSON
    API Development
    SQL
    AJAX
    CSS 3
    Java
    PHP
    JavaScript
    HTML5
    Android
  • $18 hourly
    Hi, I am professional developer in Java SE, Java EE, Servlet API, JavaSpring, Hibernate, jsp, JSF, jQuery, MySQL, PostreSQL, MongoDB, Google AWT, XML, JSON, Maven, Gradle, Groovy. Also I have good experience in Android development. I already done professional work in above listed areas for varies clients from allover world. Most of them are returned for there second is receipt of my work. thanks to them to believe in me and my work. 1] My first preference in work is to give cutting edge technology with 100% quality work. 2] And second preference is to give dally update to client to keep him in touch and exited about Project and complete it in time limit of his interest. 3] I try to do work in most competitive beget as possible. I use IntelliJ IDEA for editing code. And I want to say that I can't live without java coding I am loving it so much.
    vsuc_fltilesrefresh_TrophyIcon JSON
    JavaScript
    jQuery
    SQL
    Apache Groovy
    Java
    MySQL
    MongoDB
  • $18 hourly
    I'm an enthusiastic web developer with experience +5 years in PHP, and other technologies related to web development like Yii2 , Codeigniter, front-end development and different database technologies. Highly experienced PHP developer with extensive knowledge on OOP&MVC environment and client side scripting such as AJAX and jQuery and additional technologies such as REST, SOAP, XML and JSON. I absolutely love what I do, mobile & web Development really is everything to me.
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    SOAP
    RESTful Architecture
    Yii
    AJAX
    XML
    PHP
    jQuery
    CodeIgniter
  • $20 hourly
    Languages: HTML5, Java Script, CSS3, CSS, React JS, Java, Action Script, Pascal Delphi, Action Script 2.0 IDE/ Compilers: Visual Studio Code, Adobe Dreamweaver, Adobe Xd, Android Studio, Net Beans, Adobe Flash, Delphi 4, BP. Graphics: Adobe Photoshop, Corel Draw, Adobe Illustrator. Prepress: Page Maker, Ventura Publisher, QuarkXPress, Adobe Photoshop, Corel Draw, Adobe Illustrator.
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    Android App Development
    JavaScript
    2D Design
    Delphi
    React
    Adobe Creative Suite
  • $30 hourly
    Hello! I am an experienced WordPress Developer, Woocommerce Developer and Shopify Developer with a great design sense. I love challenges that increase my skill set and push my comfort levels. I understand deadlines and project requirements. I am an excellent communicator and can describe the technical details of a project in a way that is easy for people to understand. I specialize in WordPress/Woocommerce and Shopify/Shopify Plus. Experience in: - WordPress and WooCommerce customization - Load time optimization - HTML to WordPress, Woocommerce and Shopify - WordPress, Shopify errors debugging - PSD to WordPress, Woocommerce and Shopify with Pixel Perfect - Shopify theme customization - Responsive design - Website Migration and Hosting server management Other Skills - HTML, CSS3, JSON, AngularJS, PHP, Javascript, jQuery, Scss, Less, MYSQL, I am a professional Web Developer who builds and edits websites on a daily basis. I am very confident in my skills as a Web Developer and my ability to complete all kinds of project ranging from the development of web applications to the design of User Interfaces. You can check out some of my Upwork test scores to asses my coding and overall development capabilities. Furthermore, I work extremely fast and always strive to provide my clients with slick and modern high quality websites. My goal is to offer my skills to anyone who may have a need for them. I also want to build professional relationships with clients.
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    MySQL Programming
    Search Engine Optimization
    PHP
    JavaScript
    WordPress
    Shopify
    jQuery
    WooCommerce
    AngularJS
  • $30 hourly
    Creative, meticulous, and fast-growing Front End Developer with designing and building responsive web and mobile apps experience in the financial industry. Proficient with CSS and JS Frameworks, with extensive knowledge of UX and user psychology. Notable achievements include boosting the conversion rate of an existing website with improved code and design and lower traffic. Freely available with Blockchain technology with Web3 integration for smart contract and various wallet connection for DEX, Swap and NFT minting website and marketplaces on different blockchain networks.
    vsuc_fltilesrefresh_TrophyIcon JSON
    web3.js
    Solidity
    Blockchain, NFT & Cryptocurrency
    DApp Development
    Tailwind CSS
    Node.js
    JavaScript
    Angular
    React
    Vue.js
    ExpressJS
    SCSS
    TypeScript
    PHP
  • $10 hourly
    I am a Front-end developer with HTML, CSS, JavaScript, and React knowledge. I have certification of graduating Fullstack development courses and four successful projects. I work with: - HTML5/CSS3 - SCSS - Responsive/Adaptive Design - JavaScript - React.js - React Hooks & Components - React Redux - REST API - GIT PROJECT EXPERIENCE DR.ONE, [HTML, CSS, JS, React, Webpack] A website of the drones. Modal windows, login and register, HTML, CSS markup. Role: developer Drink master, [HTML, CSS, JS, React, Node.js] Сocktail collection website. Responsive design, add and remove from favorites, add your recipes, search, and filter by category. Role: team lead SKYLIFE, [HTML, CSS, JS, Parcel] A website for sports rental and shopping. Responsive design, modal windows, add and remove from cart, slider, and data in JSON. Role: developer Individual project. Bookshelf, [HTML, CSS, JS, REST API, Parcel] A website of the bookshop. Modal windows, add and remove from the cart. Role: developer
    vsuc_fltilesrefresh_TrophyIcon JSON
    SCSS
    REST API
    Git
    Web Development
    Adaptive Web Design
    Responsive Design
    Redux
    React
    JavaScript
    CSS
    HTML
    Web Application
    Front-End Development
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