Upwork home
Sign up
Secondary

Hire the best JavaScript Developers in Haarlem, NL

Check out JavaScript Developers in Haarlem, NL with the skills you need for your next job.
Hire freelancers
Clients rate JavaScript developers
Rating is 4.8 out of 5.
4.8/5
based on 246 client reviews
  • $120 hourly

    • 5.0/5
    • (298 jobs)
    Senior WordPress and WooCommerce developer with over 7 years of experience. I am a solo dev that responds quickly and works fast. I do both fronted & backend development. I have built, maintained and worked on multiple 5 figure + WooCommerce sites. I specialize in both frontend and backend development. I can help with maintenance, bug fixes, and any other issues you may run into while running your WordPress site. I currently have availability and am ready to get started ASAP. Proud Track Record: Completed over 285 projects (and counting!) 82% repeat customers. Interested? Drop me a message, and let's get started. Here's what I commonly do: Build custom functionality. Integrate APIs. Theme development. Dive into your existing code base, clean up the mess, and get it running smoothly. Automating repetitive tasks. Plugin development. Full site builds. Consult how AI and ChatGPT can improve your business. And more. Skills and Expertise: WordPress. WooCommerce. WooCommerce Subscriptions. AI & ChatGPT solutions. PHP, JavaScript, and CSS. Timber / Twig. WordPress Job Manager, Elementor, Divi, WPRSS aggregator.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    API
    Ecommerce Website Development
    Plugin Customization
    Theme Customization
    Website Customization
    WooCommerce
    Elementor
    Plugin Development
    API Development
    Web Development
    PHP
    WordPress
  • $63 hourly

    • 0.0/5
    • (0 jobs)
    I am a programmer with more than 8 years of experience. The main sphere - web development. Basically I am using php as the main language and the MongoDB, MySQL as the database. For data analysis, and other scripts using python, including pandas. As a strong IT professional, I like to solve problems and achieve my goals. My intellectual curiosity also drives me to be a lifelong learner. Basic php frameworks: Laravel, Symfony, Zend, Codeigniter yii2. Version control systems: subversion, git. Organisation: jira, mantis, redmine. Basically, I am working under linux. I have experience in the use RabbitMQ prodakshene. The search engine sphinx. I consider it a priority to use unit tests, ideally tdd. In my spare time I like programming in different languages. Javascript(Vue.JS, React, Angular), Html, Css. I like to analyze the possibility of various languages ​and technologies.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Kajabi
    WHMCS Development
    Elasticsearch
    RESTful API
    HTML
    Vue.js
    TypeScript
    Web Application
    Laravel
    Yii
    Google Chrome Extension
    WordPress
    Node.js
    CakePHP
  • $14 hourly

    • 0.0/5
    • (0 jobs)
    With a background in web development for over three years, I am delivering end-to-end solutions for your unique business needs. From snazzy web designs and eye-catching landing pages to smooth internal dashboards and e-commerce platforms that will fly your business – I've got you covered! What do I offer? 🎯 ✨ Stylish & Trending Web Designs: To make your online presence stand out 📈 User-Friendly Dashboards: So you can easily analyze and manage your business 🛍️ Seamless E-commerce: To boost your sales with a hassle-free shopping experience 📱 Effortless Web Apps: So the users can access your services from anywhere What's on the menu?: Chef's Special I am all about building and I believe the only limit is your imagination. Perfect match 💯 Share your idea and let's get started!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Data Scraping
    WordPress
    ChatGPT API
    Web Scraping
    Apache Cordova
    Figma
    Web Design
    Web Development
    NodeJS Framework
    CSS
    HTML
    MySQL
    MongoDB
    C#
  • $60 hourly

    • 0.0/5
    • (0 jobs)
    Hello, My name is Peter La Brash, I am 27 years old and thank you for considering me for your next project. I am here working as a freelance full-stack developer. I started web & mobile app development 7-years ago and have consulted on a diverse range of design and programming projects. I work well with clients and always strive to completely satisfy all of their needs and project requirements. My primary goal is to provide complete satisfaction to my client's expectations with my experience and diligent worth ethic. My core skills are: ⩥⪧► Front-end HTML, CSS, JavaScript, React, Vue, TypeScript, jQuery, Bootstrap, Material UI, Kendo UI, Styled Component, Svelte, Backbone.js, Semantic-UI. ⩥⪧► Back-end (Laravel, CodeIgniter, CakePHP) / PHP, ExpressJS / Node.js, Django / Python, FastAPI ⩥⪧► Database MySQL, MongoDB, MariaDB, PostgreSQL, GraphQL. ⩥⪧► Web Hosting AWS (Amazon Web Server), Bluehost, Godaddy, Apache, Nginx. ⩥⪧► Mobile development Android, Java, React Native, Flutter ⩥⪧► Blockchain - Crypto Coins Exchange Development - NFT (Non Fungible Token) Marketplace Development - Smart-Contracts (Solidity, Truffle framework) - Smart Contracts Audits - Token development based on Ethereum and Binance (ERC20, ERC721, ERC 1155, BEP20, BEP721, BEP1155) - DAPP with web3.js - ICO & IDO Development with Created Token ( Coin ) ⩥⪧► Source Code Management Tools Git, GitHub, GitLab, Bitbucket Please contact me at your convenience to discuss how I can be of service for your next project. Thanks for visiting my profile.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Objective-C
    iOS
    Vue.js
    Solidify
    React Native
    Flutter
    Firebase
    React
    Rust
    Kotlin
    PHP
  • $20 hourly

    • 0.0/5
    • (0 jobs)
    I have completed my studies and earned my diploma. I am now freelancing full-time on Upwork. I am seeking a job as a Web Developer / Front-End Developer. Frontend skillsets: - Vue.js, Nuxt.js - JavaScript, TypeScript - TailwindCSS - HTML, CSS Backend skillsets: - Laravel - PHP - SQLite, MySQL
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Full-Stack Development
    Back-End Development
    TypeScript
    Laravel
    Bootstrap
    Tailwind CSS
    Nuxt.js
    Vue.js
    Front
    CSS
    HTML
    Front-End Development
    PHP
  • $30 hourly

    • 0.0/5
    • (0 jobs)
    I am specialized in Web and Mobile app development. I am highly specialized in Web and Mobile app development. I have solid knowledge in these areas and also a deep understanding of the technical side of things. I have the necessary drive, motivation and energy to see a project through to its completion. I pride myself on completing projects on time. AREAS OF EXPERTISE:- ** Web App Development [PHP, MySQL, HTML5, CSS3, Content Management Systems and PHP frameworks like; CodeIgnitor, Laravel, Wordpress, WooCommerce, Joomla, Magento etc.] ** iOS App Development (iPhone & iPad) [Objective-C, X-Code, Swift, iOS-SDK) ** Android App Development (Android Smartphones & Tablets) [Java, Eclipse, Android Studio, Android-SDK] **Now I have a good eye in React native, flutter. ** API and Web Services [RESTful APIs, JSON, Node.js] ** Web designing. [ Creative skills, responsive, browser compatible designs, SEO friendly, and user-friendly designs] Looking forward to an opportunity to cater to your needs. Warm Regards
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    WooCommerce
    Shopify
    CodeIgniter
    React
    CSS
    Node.js
    PHP
    Angular
    Vue.js
    MySQL
    jQuery
    WordPress
    Laravel
    HTML
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a JavaScript Developer near Haarlem, on Upwork?

You can hire a JavaScript Developer near Haarlem, on Upwork in four simple steps:

  • Create a job post tailored to your JavaScript Developer project scope. We’ll walk you through the process step by step.
  • Browse top JavaScript Developer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top JavaScript Developer profiles and interview.
  • Hire the right JavaScript Developer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a JavaScript Developer?

Rates charged by JavaScript Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a JavaScript Developer near Haarlem, on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance JavaScript Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream JavaScript Developer team you need to succeed.

Can I hire a JavaScript Developer near Haarlem, within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive JavaScript Developer proposals within 24 hours of posting a job description.

Looking to hire for long-term or full-time assignments? See how Full-time hiring on Upwork simplifies the process.