Hire the best JavaScript Developers in Leipzig, DE

Check out JavaScript Developers in Leipzig, DE 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 557 client reviews
  • $35 hourly
    I have been working as a Web designer for 8 consecutive years. To go more in-depth, my area of expertise lies in graphic designing and 3D designing. Since color scheme plays an important role in website attractiveness, it is considered as a factor that always concerns me as a designer. Logo designing is my pleasure, so I have designed a large number of logos for different brand names. Adobe Illustrator logo design software program is my favorite for its comprehensiveness. Along with the above-mentioned skills, creating UI/UX for Mobile and/or Web projects is another skill that I’m turning professional in. Here is a list of my skills in brief for those who care quality, punctuality, and cost-effectiveness: • Web designing • Graphic Designing • 3D Designing • Logo Designing • UI/UX If you are interested in cooperating with me and applying my skills and idea in your projects, please do not hesitate to leave me a message and be in contact for further details.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Illustration
    Minimalist
    Mobile UI Design
    Design Writing
    UIKit
    UX & UI
    Responsive Design
    Web Design
    Logo Design
  • $40 hourly
    You get a complete product from a single source. My offer is designed to give you a full service. Got an idea? I turn it into code! Web development, Database development, API integration, Account management any many more like data processing with Python bots. I programme your front and back end. If required, I'll integrate databases, APIs and user management as well as role concepts. Experience design that adapts and looks perfect on any device. I create intuitive and engaging interfaces that your users will love. Connect your software to the world - I enable flexible API integration for the seamless integration of external services and data. Scalability and flexibility for your software. By implementing a microservices architecture, I provide easy expansion and maintenance. Data management made easy. My solutions offer seamless database integration that prioritises security and efficiency. I know that the world never stands still. That's why my solutions are designed so that they can be quickly adapted to new requirements. My reactive approach means that I'm not only prepared for change, but also utilise it as an opportunity. I rely on state-of-the-art technologies and agile development methods to ensure that your software is adaptable. The reliability and security of your software is my top priority. My robust development methods ensure that your software is not only powerful, but also secure. Through continuous testing and quality control, I ensure that your software runs stably and functions reliably even under load. With this attitude and my technical expertise, I lay the foundation for long-term success.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Python
    OAuth
    Web Application
    Data Processing
    Web Development
    MariaDB
    SQL
    Database Development
    Bootstrap
    Vue.js
    Spring Security
    Spring MVC
    Spring Boot
    Software Development
  • $75 hourly
    I am an experienced freelancer specializing in creative web design and visualization. I excel at developing custom solutions and creatively solving problems. I work closely with you to bring your vision, your dream or your project to life. Whatever it is, I'm here to help you. My expertise lies in working with the CMS WordPress as well as in the web development of Matterport 360° projects. - HTML, CSS, PHP, jQuery, Javascript, Wordpress, Typo3 - Expert in integrating and programming Matterport models or 360° captures - Skilled in responsive web design and development - Experienced in using Adobe Creative Suite and other design tools - English & Deutsch I am based in Leipzig, Germany.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    TYPO3
    360-Degree Photography
    Web Application
    Expert
    Matterport
    Problem Solving
    Website
    WordPress Plugin
    WordPress Theme
    WordPress
  • $100 hourly
    I am a dedicated and experienced software developer with expertise in PHP and JavaScript. My specialization are Laravel apps using Nova, FilamentPHP, Jetstream, and/or Livewire (TALL Stack), often with AlpineJS/VueJS (v2+) (or jQuery). As a part-time bug bounty hunter, I excel at debugging complex issues. I have successfully worked on projects of various scales throughout my career, ranging from prototyping, building MVPs, small-scale "internal apps" or "admin-tools" to large-scale, multi-tenant, public applications. Feel free to contact me to discuss your specific requirements. I can also provide guidance on solution architecture, technical leadership and team development, if desired. Creating strong, long-term relationships with my clients is a top priority for me. In addition to application development, I offer comprehensive support for greenfield projects as well as aged applications. I am fluent in English and a native German speaker. Contact me now to discuss your project needs!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    MySQL Programming
    ECMAScript 6
    System Administration
    DevOps
    SilverStripe CMS
    API Integration
    Web Application
    Vue.js
    PHP
    Laravel
  • $50 hourly
    We specialize in full stack web and desktop applications development and website design. ----------- Our technical Skill Stack ------------- - FrontEnd Development: BootStrap3, 4, CSS (Scss), Good Response + VueJS - Python: Scraping (From web site, PDF, Docx), Web site Building (Flask, Django), Desktop App (PyQT5) - MVC Frameworks: Laravel, Yii2, CodeIgniter 3+, Symfony - RestFull Api: NodeJS, Laravel, Flask. - Database: MySql, MongoDB, Sqlite We assure perfect technical execution by starting each project with very clear communication of goals, timelines and other expectations. We translate all requirements into design drafts, get the approval from our clients and then create exactly what our clients need: on time and on budget - every time! We have a high repeat hire rate because our clients trust us with their business-critical applications. We welcome you to reach out and discuss project specifics or if you have any questions!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Data Scraping
    Database
    RESTful API
    Front-End Development
    Node.js
    PHP
    Python
    Vue.js
  • $25 hourly
    ⭐⭐⭐⭐⭐"I highly recommend Sheila! She did all the tasks on time, answered quickly, and was very responsive. I look forward to working with you again on future projects!" - from Upwork client Hello there, are you a solo entrepreneur, an existing 7 figure e-commerce brand, or a starter struggling to translate ideas into reality in the Shopify Space? Do you need to start or scale your Shopify store to the next level? Here is where I come in, I will help you create, optimize, and promote your Shopify store to achieve a highly converting monthly revenue for your Shopify store. I am a German-based professional developer with a focus on both frontend and Backend development. I have expertise as a Shopify expert focused on ecommerce web designs, theme customization, Pagefly landing page building, app integrations, store designs, SEO, ad campaigns, and many more. I am talented, creative, innovative and very willing to help you utilize your time and take your business to the next level with extreme professionalism and brilliant Ideas. 🔥 Here's the services I can offer you with my experience: 🔥 ✅ Launch and manage e-commerce Websites/businesses. ✅ Build Shopify Landing Pages Using Pagefly, Canva, etc. ✅ Front-end-based technology using Html, CSS, and JavaScript. ✅ API integration (Shopify Integration with 3rd parties API). ✅ Customise Shopify theme features, and app integrations using Shopify Liquid Programming Tool. ✅ Optimize Product Descriptions for SEO. ✅ Create digital ad campaigns on Facebook, TikTok, and Pinterest. ✅ Install and Configure Klaviyo. ✅ Optimize websites for Search Engines. ✅ Bulk Product Uploads CSV files. ✅ Import/export Products & Customers, Product Description and Adding Variants, ✅ Migrate your current store to Shopify from Etsy, Square, Woo, Wix, BC, etc. ✅ Dropshipping, Oberlo Import, CJDropshipping, AliExpress Product Import. I've created Shopify stores from Scratch, designed and redesigned existing Shopify stores, tweaked Shopify websites, integrated Facebook and Pinterest Pixel, and many more. 🔥 What makes me stand out and for you to choose me over other freelancers 🔥 ✅ 🏆TOP-RATED on Upwork. ✅ German Market and Language skills. ✅ Client Reviews: I prioritize client satisfaction by working hard to provide excellent services to earn trust. ✅ Pinterest Pixel and Facebook Pixel Integration Expert. ✅ Responsiveness: You can count on my responsiveness to clients' demands and issues and ensure all queries are well addressed. ✅ Patience: Patient to help you resolve your issues and am passionate about satisfying my clients. ✅ Kindness: Strongly believe in serving, continuously trying to treat all with respect, and understanding, and empathizing with my clients to improve their situation. I wait to start an endless professional journey with you. You are welcome to send an invite or email should you need any of my services or just to connect. Thank you. 💥 Reviews and feedback from valuable clients 💥 The reviews below highlight the value and quality of work that you could expect from me. "I highly recommend Sheila! She did all the tasks on time, answered quickly and was very responsive. I look forward to working with you again on future projects!" - Olexandr, Divi XYZ Media UG (haftungsbeschränkt) "Thank you Sheila! Great technical skills, very patient." - Wesley Yu "Sheila has done a great job! Will hire her again when needed." - Yves "Sheila is a good professional, continue working with her!" Olexandr, Divi XYZ Media UG (haftungsbeschränkt) "Excellent Job. Communication is great and timely with great ideas as well." - Danielle, Pamper Peace Ecommerce.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    PayPal
    Product Description
    Web Analytics
    Data Entry
    Product Listings
    Shopify Apps
    Facebook Ads Manager
    Dropshipping
    Canva
    CSS
    HTML5
    Shopify
    Landing Page
  • $46 hourly
    As a Sr. Front-End Architect (full-stack available) with around 9 years of solid experience, I had contributed to a few startups & enterprise companies like Virtually Human, Measure, Arthub365, Hexact, etc boosting them as the mass consumer services. My goal is to be essential in support of the business strategy and ensure that technology solutions are aligned with the long-term architecture strategy. Throughout my career, I always pay attention to the creation of high-quality, sustainable applications writing the code in a high-paced and challenging environment emphasizing using best practices.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    GraphQL
    Web Development
    Front-End Development
    ExpressJS
    TypeScript
    Next.js
    Node.js
    React
    Redux
    D3.js
    Gatsby.js
    React Bootstrap
  • $22 hourly
    Transform your ideas into actionable solutions with my expertise in NLP, data analysis, visualizations, and application development. Whether you need state-of-the-art machine learning models or robust data pipelines, I’m here to deliver high-quality, efficient results tailored to your needs. Portfolio & Articles: danielgall500.github.io Why Work With Me? - Proven Experience: With years of NLP research and hands-on development, I’ve contributed to publications in MDPI Analytics, COLING, SIGCSE, ITiCSE, and ACM InRoads. - Cutting-Edge Skills: Proficient in Python, R, and Rust, I build scalable solutions backed by the latest tools and frameworks. - Client-Centric Approach: Clear communication, detailed progress updates, and a money-back guarantee ensure your project’s success. My Services 1. NLP Solutions Leverage the power of text data with: - Named Entity Recognition (NER) - Sentiment Analysis - Machine Translation - Pattern Matching - Speech Recognition 2. Data Analysis & Visualization Transform raw data into actionable insights with: - Data cleaning, integration, and transformation - Interactive dashboards and web applications (Streamlit, FastAPI, Flask) - Statistical modeling and advanced analytics 3. Language Model Development Step-by-step building, training, and testing of machine learning models. (Clients cover additional hardware costs.) 4. Consultations Optimize your data workflows and get expert advice on dataset preparation, model training, and deployment strategies. Tools & Technologies - Programming Languages: Python, R, Rust, SQL, JavaScript, C++, Java - ML Libraries: HuggingFace, NLTK, SpaCy, PyTorch, TensorFlow - Data Science Tools: Pandas, NumPy, ggplot2, dplyr, tidyr - Visualization: Streamlit, Vue.js, Flask, Django - Data: RDBMS, SQL, Neo4J Graph Databases, Cypher Query Language What Sets Me Apart? I’m dedicated to making your success my priority. My work includes: - Transparent communication and regular updates - Flexible collaboration tailored to your specific goals - Guaranteed satisfaction with every deliverable Reach out today to schedule your free 30-minute consultation.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Data Science Consultation
    NLTK
    Plotly
    spaCy
    Text Analysis
    pandas
    Machine Learning
    Data Science
    Natural Language Generation
    Rust
    R
    Python
    Natural Language Processing
  • $40 hourly
    Hi there! I’m a tech-savvy, no-nonsense developer passionate about helping businesses across diverse industries enhance their digital presence since 2017. Whether it's classic websites, dynamic single-page applications (SPAs), or CMS-driven e-commerce platforms, I bring a full-stack approach to every project. I specialize in delivering fast, functional, and innovative solutions tailored to your web development needs. Let’s work together to take your business to the next level and make your online presence stand out!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Technical Support
    Hosting Setup
    Notion
    TypeScript
    Advanced Custom Fields Plugin
    Web Development
    Web Application
    Python
    CSS 3
    Divi
    Elementor
    WordPress
    Angular
  • $56 hourly
    I am a senior PHP developer and architect with 12 years of development experience specializing in Magento Commerce, Zend Framework, WordPress, and similar software. I have worked on enterprise eCommerce sites for globally recognized brands as an individual consultant and as a team leader. My major e-commerce projects were developed on Magento, BigCommerce, Shopify, osCommerce/Zen Cart and PrestaShop platforms. Expertises in Magento/eCommerce Store Development: Magento Custom Development, Magento Data Migration, ERP Integration, Magento Frontend Development, Custom Search Functionality, Magento optimization, Magento Customer Behavior Development,Magento Sap integration,Magento Customization,Magento,Magento Extension,Magento specialist , magento certified developer,Magento Development,Magento Theme Development, Magento Extension Development,Magento Design, Custom Magento Themes, Magento iPhoneMobile Theme Development,Magento Customization, Magento eCommerce Customization, Customize Magento Extension, Customize Magento Theme,Magento SEO Services, Magento Optimization, Magento Services,Magento Open ERP Integration, Joomla Magento Integration. WordPress fields: Wordpress, Wordpress Theme, HTML to Wordpress, PSD to Wordpress, Responsive Design, Wordpress Security, SEO, W3C Valid, Speed Optimized, and Graphics. Other Tech specialized in: * Web Development: PHP, MySQL, HTML5, CSS3, JavaScript * e-Commerce Applications: Magento, BigCommerce, Shopify, WooCommerce, osCommerce/ZenCart, PrestaShop, Ubercart, VirtueMart * Payment Gateways Integration: Paypal, Authorize.net, Stripe, Braintree, Google Checkout * Content Management Applications: Wordpress, Joomla * Web Frameworks: Laravel, Symfony, Zend, CakePHP, Pear, jQuery, Prototype/Script.aculo.us * Graphic Design: Adobe Photoshop, Adobe Illustrator * Internet Marketing: Search Engine Optimization, Pay Per Click Management, Social Network Marketing
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Twitter/X Bootstrap
    Magento
    Facebook Development
    Ecommerce Website Development
    jQuery
    Laminas
    WordPress
    MySQL
    PHP
  • $10 hourly
    I have worked as an Executive & Personal Assistant for 3 years. I am now a Virtual Assistant available 24 hours a day, 7 days a week. I am a true all- around assistant with the ability to multitask & handle all aspect of bussiness, while increasing overall productivity with efficient work. I am negotiable on price & always up for a challenge. I am eager to help and look forward to working with you!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Content Creation
    Marketing Automation
    React Native
    React
    Pay Per Click Advertising
    Amazon PPC
    Lead Generation
    Social Media Marketing
    Facebook
  • $40 hourly
    I have been working as a full-stack web developer for the past 8 years. React/Redux, NodeJs, and MongoDB is my main development stack. DevOps knowledge such as deploying a website in AWS or Google Cloud Platform, Firebase, Docker, etc.. Experience in all major programming languages associated with web development, such as HTML/HTML5, CSS/CSS3/SCSS, Bootstrap, Google Material Design, Ant Design, Javascript and JavaScript frameworks - React.JS, Node.JS, Express.JS, Chart.JS... Also, I am aware of a variety of libraries and technics that might improve the project needs, such as Electron, TypeScript, Redux-Saga, RxJs, styled-components, Selector, Material-UI, Apollo GraphQL, Swagger, and so on.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Ionic Framework
    Firebase
    ExpressJS
    CSS
    React
    AWS Amplify
    Redux
    HTML
    Node.js
  • $35 hourly
    I am a Front-End Developer, speecializing on React.JS. I have been in IT for 5 years already (starting with self-study, it-university, freelancing, and right up to employment in the Grandz). I love the Front-End and everything related to the user interfaces and experience, so I constantly study new technologies to improve my skills. I am self-taught quickly, and I am also good at teamwork. My Skills: * React.js/Next.js, Redux, Redux-Saga, Redux-Thunk, Redux-Observable, React-Logic, Hooks * VueJS, AngularJS * Material UI, Ant Design * HTML5/CSS3, LESS/SASS/SCSS/Tailwind CSS * Bootstrap / jQuery / PixelPerfect - W3C valid, responsive Your results really matter to me! Click on the Invitation button to discuss your project!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Redux Saga
    Redux Form
    Redux
    Vuetify
    Bootstrap
    Vue.js
    CSS 3
    HTML5
    React
  • $12 hourly
    👋 Hello and Welcome! My life has been a ceaseless journey of learning and self-discovery, shaped by a wide array of experiences. From traversing multiple countries to immersing myself in diverse cultures, I've honed my adaptability and versatility every step of the way. 👨‍💻 Professional Journey As a Software Developer, I've been particularly focused on creating digital solutions that bring value to both businesses and their users. My project portfolio is a testament to this. 🛠 Methodologies - HTML, CSS, JavaScript, Python - Design Thinking - User-Centric Design - Agile Development - User Experience (UE) & User Interface (UI) Design (UXD) - E-commerce, SEO & Web Marketing 🛠 Services Provided - Database Modeling providing ERD & ORM: PostgreSQL - Full-stack Development - Django and Flask website software/script - Customized Documentation and Site using Mkdocs and Mkdocs Material - Adapted Web Marketing Plan - SEO plan and Implementation - SCRUM & Agile Development for your business - User-centered design for your business idea - E-commerce Design and type for your business idea - Detailed Design Thinking for your business idea: problem-solving, business plan and strategy - and much more... 🛠 Tech Stack - Django, Flask - PostgreSQL - Redis - Heroku - AWS3 and CloudFront - Mailchimp - EmailJS - Supabase - Cloudflare - Website Domain - SMTP - Google Services - OpenAI - and much more... Feel free to connect or reach out if you think we can collaborate or learn from each other. Whether it's for the current job market or future opportunities, I'm always excited to discuss potential synergies. Thanks for stopping by! Yours Sincerely, Frank Arellano
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Marketing
    SEO Strategy
    User Experience Design
    User Interface Design
    User-Centered Design
    Ecommerce
    Design Thinking
    Agile Software Development
    Flask
    Python
    CSS 3
    HTML5
    Django
    Web Application
  • $10 hourly
    I am a skilled Front-end Developer passionate about crafting visually appealing and user-friendly websites and applications. With a keen eye for detail and a commitment to delivering high-quality user experiences, I am dedicated to bringing creativity and functionality to every project I undertake. • Proficient in HTML, CSS, and JavaScript, I specialize in creating responsive designs that seamlessly adapt to various devices; • Love working with React and other libraries such as Bootstrap and jQuery to speed up the website/application creation process; • I am experienced in version control using GitHub to store, manage and share wrote code.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Mobile App Development
    Cross-Device Compatibility
    WordPress
    UX & UI Design
    SCSS
    HTML5
    GitHub
    Tilda
    Front-End Development
    Responsive Design
    Bootstrap
    React
    CSS
    HTML
  • $17 hourly
    Fullstack engineer focusing on React, MongoDB and Node.js. Experience hiring and leading engineering teams
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    MongoDB
    MySQL
    Node.js
    React
  • $15 hourly
    Dedicated Customer Service professional with knowledge of service delivery and proven multitasking abilities. Committed to maintaining professional relationships to increase profitability and drive business results. Encouraging manager and analytical problem-solver with talents for team building, leading and motivating, as well as excellent customer relations aptitude and relationship-building skills. Proficient in using independent decision-making skills and sound judgment to positively impact company success. Dedicated to applying training, monitoring and morale-building abilities to enhance employee engagement and boost performance. Organized and dependable candidate successful at managing multiple priorities with a positive attitude. Willingness to take on added responsibilities to meet team goals.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    C++
    PHP
    HTML
    Web Design
    Management Skills
    Customer Service
  • $25 hourly
    PROFESSIONAL SUMMARY Highly skilled and experienced Senior PHP Developer with over 5+ years of hands-on experience in developing, deploying, and maintaining dynamic, scalable, and high-performance web applications. Expert in PHP frameworks like Symfony, and CodeIgniter, with a deep understanding of RESTful APIs, databases, front-end technologies, and version control. Proven track record of leading development teams, collaborating with crossfunctional teams, and delivering high-quality software solutions. Passionate about clean code practices, performance optimization, and continuous learning. HTML,CSS3,JAVASCRIPT,AWS,SEO,PHP,SYMFONY,MYSQL,REACTJS,
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Amazon S3
    Amazon RDS
    Amazon EC2
    MySQL
    React
    NodeJS Framework
    PhpStorm
    PHPUnit
    PHP
    Front-End Development Framework
    Web Development Consultation
    Ecommerce
    Ecommerce Website
  • $27 hourly
    I'm Laravel expert with 8 years of experience in PHP web development. I have extensive experience in supporting and developing applications from scratch on Laravel 5 and Symfony 4 framework for existing businesses and start-ups. I have a lot of projects in development and integration of APIs. My skills include: - Back-end: PHP 5.*, 7.*, Go, Laravel 5., Symfony 4* - Front-end: Vue.js, HTML, CSS, Bootstrap, JS, jQuery; - Databases: MySQL, PostgreSQL; - Profound experience and technical knowledge of the LAMP stack; - Solid understanding and OOP usage and design patterns; - Building and integrating RESTful APIs; - Unit testing; - Linux, Ubuntu; - Version-control system: git I listen to you, understand your specifications, and ask question if it is necessary. I’m reliable worker, and I promise to do a job well in time. Then I do my best. I go on providing technical support to every application created by me if it is necessary. I always do everyhing from the start to the end. I never refuse from maitenance and to continue the work. The technical maintenance is nesessary for adding new functions and modules in the future. It will be easy because my code is always clean and has functional tests.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    HTML5
    CSS 3
    Yii2
    Angular 2
    React
    Symfony 4
    CakePHP
    PHP
    Laravel
  • $15 hourly
    I am creative developer from Leipzig, Germany and I am excited about creating stunning websites. I enyoj learning about Frontend development and would like to upgrade my knowledge and skills.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    CSS
    HTML
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