Hire the best JSON Developers in Belgrade, RS

Check out JSON Developers in Belgrade, RS with the skills you need for your next job.
  • $35 hourly
    I am a Data Engineer with experience in Python, Pentaho Data Integration (PDI), and API integration. My focus is on creating seamless data workflows and integrating complex datasets. Proficient in Python for data manipulation, automation, and developing efficient, scalable code for data processing tasks. Pentaho Data Integration (PDI): Expertise in designing and managing ETL processes using Pentaho, ensuring smooth and reliable data transformation and loading. Skilled in integrating, and consuming APIs to facilitate seamless data exchange between diverse systems and applications. What I Offer: Efficient ETL pipeline development using both Python and Pentaho to handle complex data transformations. Data modeling and database design for optimal data storage and retrieval. Real-time data analytics and reporting solutions to support business intelligence initiatives. Comprehensive API integration to enhance data accessibility and system interoperability. Ensuring high data quality, integrity, and security throughout the data lifecycle. I am dedicated to harnessing the power of data to enable data-driven decision-making and improve operational efficiency. Let's work together to transform your data into valuable business assets!
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    CSV
    API Integration
    Discord Bot Development
    Oracle PLSQL
    MySQL
    Stored Procedure Development
    ETL Pipeline
    SQL Programming
    Microsoft Excel
    ETL
    Pentaho
    Oracle Rdb
    SQL
    Python
  • $49 hourly
    I'm a Java-developer with 7+ experience in building enterprise applications. Working for the customer, I have 100 percent success and solve problems in the shortest possible time. My skill set includes technologies for backend: ⭐Spring ⭐Hibernate ⭐SQL ⭐Apache Tomcat ⭐Jboss ⭐Maven ⭐Gradle Frontend: ⭐Angular ⭐Typescript ⭐Vaadin DevOps: ⭐Jenkins ⭐Teamcity ⭐uDeploy ⭐Kubernetes ⭐Openshift ⭐Linux ⭐Bash ⭐Python ⭐Groovy Also I developed several applications from scratch: ⭐Telegram bot for real estate searching ⭐Telegram game: text RPG-game ⭐Spring-boot application for working with customer ⭐Android puzzle game I am ready to work and develop professionally, contributing to the growth of your organization.
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    Vaadin
    Kotlin
    OpenShift
    Docker
    Database
    Python
    Linux
    Telegram API
    Load Testing
    Angular
    SQL
    Hibernate
    Spring Framework
    Java
  • $45 hourly
    I am highly motivated front end web developer. Proficient in React, Vue, React Native, Next.js, TypeScript, HTML, CSS, and APIs (Rest/JSON)... Libraries and technologies that I used in projects include DevExtreme, Vezgo, Web3, Solana-wallet, Mermaid, Expo, Vuetify, Chakra, Storybook, Tailwind among others... Leverage technical, analytical and problem-solving skills to create dynamic, high-speed websites, apps and platforms with emphasis on data manipulation, UX and UI design. Also, I have a huge expertise as an AppAdmin, mostly on Microsoft technologies. Undergraduate - School of Electrical and Computer Engineering of Applied Studies
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    React Native
    DevExpress
    Storybook
    HTML
    React
    SQL
    Tailwind CSS
    Vue.js
    TypeScript
    Next.js
    Vuetify
    JavaScript
    CSS 3
  • $33 hourly
    Hi, I’m Pavle! I’m all about simplifying processes and bringing automation to life using Make.com, MindStudio, and other powerful tools. My work focuses on helping you streamline workflows, automate repetitive tasks, and make the most of your tech stack—tools like Google Sheets, Docs, WordPress, HubSpot, etc. Here’s a glimpse of what I can help you achieve: - Google Sheets & Docs - WordPress - HubSpot - Slack – automate notifications, set up reminders, and integrate with project management tools - Airtable – build custom databases with automated reporting and data syncing - Notion – create collaborative, real-time workspaces and integrate with other platforms - Shopify – set up automated order tracking, notifications, and customer engagement tools - Calendly – automate scheduling with CRM and email systems and many more! If you’re looking for ways to work smarter, not harder, let’s connect to discuss your project!
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    Email Automation
    Python-Requests
    HTTP
    Data Structures
    Zapier
    Make.com
    Task Automation
    Automation
    AI Implementation
  • $25 hourly
    Hello, For the last two years my new passion is web developement. I am mostly focus on simplicity and responsive design. As a freelancer, i work for web agencies, startups and individuals. As a web developer focused on customer satisfaction, I manage all aspects of web development. From concept to requirements definition, design, development, launch, maintenance and user support.
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    Angular
    Bootstrap
    WordPress
    jQuery
    CSS 3
    AJAX
    Adobe Photoshop
    JavaScript
    HTML5
  • $9 hourly
    I am Php developer, use Php (OOP, Core, Laravel, Api), MySQL, HTML, CSS. If project need I can do some action on JS or jQuery code.
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    MySQL Programming
    RESTful API
    CSS 3
    PHP
    Laravel
    HTML5
  • $15 hourly
    I am an experienced back-end web developer with more than 3 years of experience developing software solutions. Building custom web applications and APIs is my expertise. ☑ Broad experience working with Node.js and powerful frameworks like ExpressJS and NestJS. ☑ Experience working with relational databases (MySQL, PostgreSQL, SQL Server) and different ORMs (TypeORM, Prisma, Sequelize) as well as being able to write raw SQL and stored procedures. ☑ Ability to implement different authorization techniques like sessions, JWTs (json web tokens) and SSO (single sign on).
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    Back-End Development
    CMS Development
    Software
    API Testing
    API Development
    NestJS
    Web Application
    JavaScript
    MySQL
    PostgreSQL
    SQLite
    Web Development
    TypeScript
    Node.js
  • $6 hourly
    Im a web and app developer that is constantly learning new languages and technologies. I can contribute and work solo on various projects. Languages: HTML, CSS ( with implementation of TailWind css and Bootstrap ), JavaScript ( with React and React native liberaries ), Expo ( for mobile development ), MySql and Wordpress.
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    MySQL
    WordPress
    Figma
    React Native
    Tailwind CSS
    Bootstrap
    React
    JavaScript
    CSS 3
    HTML
  • $30 hourly
    Senior Android Developer with 7+ years in the mobile app development industry, specializing in crypto wallets, B2B solutions, and remote vehicle management across global markets. Successfully led projects, delivering high-quality Android apps and SDKs. Spearheaded the development of a crypto wallet at Grapherex, resulting in 10,000 installations within 15 months. Optimized app architecture, reducing build time by 50%, and transitioned 70% of the codebase to Kotlin Coroutines. Implemented a custom Gradle plugin at Bright Box, simplifying SDK integration and enabling successful security certification. Adaptable, results-oriented, and skilled in cross-functional collaboration, making a strong fit for high-impact development roles in fast-growing companies.
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    GitHub
    Git
    Jira
    Dagger 2
    RxJava
    REST API
    SQLite
    Firebase
    Google Play
    Android Studio
    JetPack
    Kotlin
    Java
    Android App Development
  • $6 hourly
    I am specialized on web automation, testing web application and web scraping. Web automating anything you want. Writing test cases in python, selenium library. I can scrap different type of websites, including dynamic sites or sites that require login . I will scrape and take data out of it , order , clean and deliver in any convenient format (json, csv, txt xlsx and so on) . CONTACT:- 24/7 (Send invitation or text me on Upwork (please wait 10 minute)
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    Data Scraping
    XML
    Selenium WebDriver
    Selenium
    Automated Testing
    Python
    Web Testing
  • $7 hourly
    🚀 Passionate iOS Developer | Creating Amazing Software | Embracing Challenges Greetings! I'm Vladimir Savic, an enthusiastic iOS developer driven by the thrill of crafting exceptional software experiences. With a fervent passion for problem-solving, I immerse myself in the dynamic world of app development, constantly seeking out new challenges to conquer. 🌍 Humanitarian Focus | Innovative Solutions I've dedicated my skills to meaningful causes, contributing to the development of humanitarian applications that aim to make a positive impact on society. It's incredibly fulfilling to leverage technology for the greater good, and I'm proud to have played a part in such projects. 📱 Crafting My Debut App for the App Store Currently, I'm immersed in the exciting journey of bringing my first standalone application to life, destined for the prestigious shelves of the App Store. This project epitomizes my commitment to innovation and my relentless pursuit of excellence in software development. 📚 Passionate Learner | IT Enthusiast I thrive on the opportunity to expand my knowledge and skill set, constantly exploring new technologies and methodologies in the ever-evolving landscape of IT. Whether it's mastering a new programming language or diving deep into emerging trends, I'm always eager to broaden my horizons. 💼 Collaborative Spirit | Dedicated Work Ethic While I relish the camaraderie of teamwork, I'm equally adept at tackling projects solo, leveraging my strong communication skills and unwavering work ethic to deliver exceptional results. Whether it's collaborating with fellow developers or independently driving a project forward, I adapt seamlessly to any working environment. Let's connect and embark on an exciting journey of innovation and creativity together! Hit me up. :)
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    Cocoa API
    UIKit
    iOS
    Automation
    Agile Software Development
    iOS Development
    Scrum
    Cocoa Touch
    Manual Testing
    Embedded Application
    Swift
    Software Testing
    Integration Testing
  • $45 hourly
    I specialize in Golang with Iris, Beego and, Gin frameworks with a focus on building intuitive and effective backend services and IoT development. I have been working on Golang for 5 years and am well versed in GCP, AWS, and Docker, Kubernetes. I am a senior software developer with experience in scalability issue, system administration, and more. I have a strong sense of well-structured, readable, and maintainable applications and rich experiences in Golang I would be glad to join your project.
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    Docker
    Golang
    Amazon EC2
    RESTful API
    C
    Socket Programming
    Google Cloud Platform
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