Hire the best JavaScript Developers in Kocaeli, TR

Check out JavaScript Developers in Kocaeli, TR with the skills you need for your next job.
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  • $45 hourly
    Hi ✋ I'm an Acquia Certified Drupal Developer. And as a full-stack web developer, I have over 6 years of experience working both as an employee for 4+ years and as a freelancer for more than 2 years. My skills include extensive development in Drupal, specializing in theming and module development for 4 years. In addition, I have worked on JamStack projects and utilized various technologies such as ReactJS, SolidJS, and jQuery. Overall, I possess a strong understanding of web development technologies and frameworks, with a proven track record of delivering quality projects in a timely manner. I am highly adaptable and constantly seeking out new challenges to expand my skill set and contribute to innovative and impactful projects.
    Featured Skill JavaScript
    HTML
    Extension & Module Development
    Drupal
    JSON API
    Web Development
    Google Chrome Extension
    Bootstrap
    jQuery
    PHP
    CSS
    SCSS
    React
    API Development
    Symfony
  • $60 hourly
    Hello and Welcome! 👋 I have heard you have been searching for a WordPress and front-end development expert who can bring your digital vision to life. Let me introduce myself: With over 10 years of experience in the dynamic world of web development, I specialize in creating, optimizing, and customizing WordPress sites and front-end solutions. From crafting unique themes and plugins to building responsive, high-performance interfaces, I’m the developer businesses of all sizes turn to for standout digital experiences. 💻 ------------------------------------------------------------------------------------------------------------------------ What I Bring to the Table: 🛠️ WordPress Mastery: Having developed 30+ themes and a range of custom plugins, I’m well-versed in WordPress Codex, delivering solutions tailored for anything from eCommerce sites to B2B platforms. Whether you need Elementor, Divi, or Gutenberg widgets, I build them to your exact specifications—optimized, responsive, and user-friendly. ------------------------------------------------------------------------------------------------------------------------ 🎨 Front-End Expertise: My skillset extends beyond WordPress. I’m proficient in HTML, CSS, JavaScript (ES6), and ReactJS, enabling me to build seamless and interactive user interfaces. I take pride in crafting pixel-perfect, mobile-first designs that enhance user experience and keep your site running smoothly across all devices. ------------------------------------------------------------------------------------------------------------------------ ⚡ Performance-Driven Development: Every line of code I write is focused on speed and efficiency. My themes and front-end components are crafted for maximum performance, ensuring your site is fast, reliable, and scalable, all while maintaining a clean and maintainable codebase. ------------------------------------------------------------------------------------------------------------------------ 🌍 API Integrations & Advanced Features: From WooCommerce customizations and MemberPress integrations to building complex API connections with Google Cloud, OpenAI, and other services, I’m your go-to for enhancing your site’s functionality and connectivity. Need a chatbot, a login system, or a complex integration? I’ve got you covered. ------------------------------------------------------------------------------------------------------------------------ 🤖 AI & Cutting-Edge Technologies: Looking to bring AI into your web project? With experience integrating the OpenAI API, Amazon Bedrock, and Azure AI services, I can infuse intelligence into your WordPress site, enabling personalized experiences and automations that set you apart. ------------------------------------------------------------------------------------------------------------------------ A Few Highlights from My Portfolio: 💡 Developed custom B2B platforms using WordPress and built-in integrations with WooCommerce and MemberPress for seamless user management and eCommerce functionalities. 💡 Designed a Product Quiz Plugin using Vanilla JS to enhance user engagement and boost conversions through smart integration with WooCommerce. 💡 Built interactive widgets and blocks for leading page builders like Elementor, Divi, and Gutenberg, ensuring compatibility and top-tier user experience. 💡 Developed AI-powered tools such as chatbots, recommendation engines, and login systems, combining modern technologies with WordPress to create dynamic, personalized web solutions. ------------------------------------------------------------------------------------------------------------------------ Tech I Work With Daily: 📝 Languages: PHP, HTML, CSS, JavaScript (ES6), ReactJS 🔧 Tools: Gulp, Webpack, Sass 🖼️ WordPress Builders: Elementor, Divi, Gutenberg 🔗 API Integrations: WP REST API, Google Cloud, OpenAI, Azure, Amazon Bedrock ------------------------------------------------------------------------------------------------------------------------ I’m committed to delivering high-quality, performance-optimized code that adheres to the best practices of both WordPress development and modern front-end frameworks. Whether you need a custom WordPress theme, a dynamic front-end interface, or a complex integration, I’m here to make your project successful—perhaps while enjoying a fresh cup of coffee ☕ and coding to the rhythm of my favorite tunes 🎶. ------------------------------------------------------------------------------------------------------------------------ Let’s meet and discuss how I can bring your project to life! 🗣️
    Featured Skill JavaScript
    MySQL
    React
    PHP
    WordPress
  • $31 hourly
    I have been developing applications and sharing codes on core php and mysql for more than 5 years. I enjoy and enjoy teaching new people. I have been in the software and internet world since 2014, after high school graduation (2017). I took a look at many areas and walked around. Things I have (albeit basic) knowledge: Html, css, js, php, react, mongodb, sql, delphi, autoit, lua, cheat engine, c++, c#, vb.net, .net, flutter, kotlin, vue, java, swelte, graphic design: illustrator, photoshop, premiere pro, after effects, SAP-ERP (in warehouse), Wordpress, mybb (plugin development: TC ID and SMS approval), xenforo, vbulletin, opencart, cms, unity, I used and edited the application with android studio.
    Featured Skill JavaScript
    MySQL
    PHP
    jQuery
  • $15 hourly
    Are you looking to convert your Figma design into a seamless Webflow website? Need a Webflow developer to fix bugs or customize your Webflow templates? You've found the right Webflow developer. 🔷 My Webflow Expertise: - 💯 Pixel-perfect Figma to Webflow conversions - 🏗️ Custom Webflow CMS solutions - 📱 Fully responsive designs with flawless mobile experiences - 🧩 Custom API integrations and complex functionality - 🚄 Performance optimization for lightning-fast load times - 🔹 Organized development with Finsweet Client First methodology - 🔸 Quick and consistent design implementation with Relume library - 🌐 Advanced customization with Finsweet plugins and solutions If you're interested in working together, send me a message and I'll get back to you ASAP!
    Featured Skill JavaScript
    Web Component Design
    Web Design
    BrowserStack
    Responsive Design
    Front-End Development
    Figma
    Landing Page
    Website
    Web Development
    Webflow
    HTML
    CSS
  • $50 hourly
    Hi, I’m Onur Güzeltepe! I specialize in web development, mobile applications, and custom software solutions with over 5 years of experience. As the founder of Runobu.tech, I provide modern, scalable, and high-performance solutions tailored to your business needs. ✔ Custom Web & Mobile Applications ✔ WooCommerce & WordPress Development ✔ PHP, Laravel, React, Flutter, Firebase ✔ Elementor & UI/UX Design ✔ AI-Powered Applications & Chatbot Solutions Whether you need a stunning website, a powerful e-commerce store, or a fully functional mobile app, I’ve got you covered. Let’s bring your ideas to life! 💬 Let’s discuss your project!
    Featured Skill JavaScript
    API
    Flutter
    TypeScript
    Vue.js
    React
    MySQL
    Laravel
    WordPress Theme
    WordPress Plugin
    Canva
    PHP
    CSS
    Elementor
    HTML
  • $50 hourly
    🌟 𝐄𝐱𝐩𝐞𝐫𝐭 𝐢𝐧 𝐌𝐨𝐝𝐞𝐫𝐧 𝐖𝐞𝐛 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 | 𝐒𝐚𝐚𝐒 | 𝐒𝐒𝐑 | 𝐂𝐒𝐑 | 𝐈𝐒𝐑 | 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐂𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬 Hi, I'm 𝐘𝐮𝐬𝐮𝐟, a 𝐡𝐢𝐠𝐡𝐥𝐲 𝐬𝐤𝐢𝐥𝐥𝐞𝐝 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 with over 𝟒+ 𝐲𝐞𝐚𝐫𝐬 𝐨𝐟 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞, specializing in 𝐑𝐞𝐚𝐜𝐭, 𝐍𝐞𝐱𝐭.𝐣𝐬, 𝐕𝐮𝐞.𝐣𝐬, 𝐚𝐧𝐝 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭. I've built 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 and 𝐒𝐚𝐚𝐒 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬, with expertise in both 𝐟𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐚𝐧𝐝 𝐛𝐚𝐜𝐤𝐞𝐧𝐝 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭. 🏆 𝐖𝐡𝐲 𝐇𝐢𝐫𝐞 𝐌𝐞? 🤝 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧 & 𝐓𝐞𝐚𝐦𝐰𝐨𝐫𝐤: Proven team player and leader, using effective communication to analyze and solve issues. 🔍 𝐂𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐍𝐞𝐞𝐝𝐬 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬: I go beyond simple requests, identifying and implementing solutions that truly solve problems. 🚀 𝐏𝐫𝐨𝐯𝐞𝐧 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞: Successfully built and deployed SaaS, e-commerce, and enterprise applications 🔧 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐂𝐚𝐩𝐚𝐛𝐢𝐥𝐢𝐭𝐢𝐞𝐬: While I specialize in frontend, I also handle backend development and server configurations 🛠️ 𝐒𝐜𝐚𝐥𝐚𝐛𝐥𝐞 & 𝐌𝐚𝐢𝐧𝐭𝐚𝐢𝐧𝐚𝐛𝐥𝐞 𝐂𝐨𝐝𝐞: I follow best practices to ensure optimized and maintainable codebases 💡 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬-𝐎𝐫𝐢𝐞𝐧𝐭𝐞𝐝 𝐀𝐩𝐩𝐫𝐨𝐚𝐜𝐡: I focus on delivering solutions that drive business growth and enhance user experience 🔥 𝐌𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞: ✔ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: React.js, Next.js (App Router & Pages Router), Vue.js, Nuxt.js (Nuxt 2 & 3), TypeScript, Tailwind CSS, NextUI, MUI ✔ 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: Node.js, Express.js, Laravel, .NET Core ✔ 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 & 𝐃𝐞𝐯𝐎𝐩𝐬: Linux servers, CI/CD (GitHub Actions, CircleCI), Nginx, Google Cloud Run, Firebase ✔ 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 & 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧: Server-Side Rendering (SSR), Incremental Static Regeneration (ISR), Client-Side Rendering (CSR), Microservices ✔ 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬: Payment gateways, carrier APIs, Redis, RabbitMQ ✔ 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: React Native (10+ months experience) 🎯 𝐍𝐨𝐭𝐚𝐛𝐥𝐞 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 & 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞: 🔹 𝐏𝐥𝐚𝐧𝐝𝐚.𝐨𝐫𝐠 – (Clinic Cloud SaaS) Laravel, Next.js, Tailwind CSS 🔹 𝐒𝐡𝐢𝐩𝟕 – (E-Commerce) .NET Core, Vue.js, Microservices, Redis, RabbitMQ 🔹 𝐏𝐝𝐟𝐆𝐞𝐧𝐢𝐮𝐬 – (PDF Editing & Conversion) Next.js, Node.js, Express.js, Firebase, Google Cloud 🔹 𝐒𝐢𝐞𝐦𝐞𝐧𝐬 𝐖𝐞𝐛𝐬𝐢𝐭𝐞𝐬 – (Enterprise Web Solutions) Alpine.js, HTML, Tailwind CSS, SCSS, JavaScript 🔹 𝐃𝐨𝐜𝐭𝐨𝐫𝐥𝐚.𝐜𝐨 – (Doctor-Patient Video Calls) .NET Core, JavaScript, HTML, CSS 🔹 𝐊𝐚𝐚𝐧𝐥𝐚𝐫 𝐕𝐚𝐤𝐟𝐢 – (Civil Society Organization) Laravel, Redis, Nuxt.js 🔹 𝐞𝐛𝐚𝐠𝐢𝐬.𝐨𝐫𝐠 – (Non-Profit Cloud Platform) Nuxt.js, Vuex, Vuetify 🔹 𝐈𝐝𝐝𝐞𝐟 – (Non-Profit Platform) Laravel, Redis, Nuxt.js, React Native 🔹 𝐖𝐚𝐭𝐞𝐫𝐡𝐞𝐫𝐨 – (Software Solutions) Next.js, Tailwind CSS 🔹 𝐅𝐚𝐛𝐫𝐢𝐤𝐨𝐝 – (Software Solutions) Nuxt.js, Strapi I have extensive experience deploying applications, optimizing performance, and implementing complex frontend architectures. If you are looking for a dedicated and experienced developer to build, optimize, or scale your web application, let's connect! 📩 𝐂𝐨𝐧𝐭𝐚𝐜𝐭 𝐦𝐞 𝐭𝐨 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐭𝐨𝐝𝐚𝐲!
    Featured Skill JavaScript
    NodeJS Framework
    RabbitMQ
    React Native
    Redis
    Vuetify
    React
    Nuxt.js
    Vue.js
    Next.js
    TypeScript
  • $5 hourly
    Hello! I am Yusuf, a high school student interested in software development. I haven't graduated yet, but I work with passion and determination to constantly improve myself in the software world. Currently, I am actively working with programming languages ​​such as C#, C++, Python and tools such as Tinkercad and Fusion 360, and I focus on improving myself in these areas. Additionally, my interest and knowledge in web technologies such as HTML, CSS and JavaScript are increasing day by day. In my software development journey, I am also gaining experience with graphic design and visual effects tools such as Photoshop and After Effects. I aim to use these skills to create aesthetic and user-friendly interfaces in my projects. I also train myself in mobile application development with Flutter and strive to improve my skills in this field. Even though I do not have professional experience yet, I am determined to progress in this field with my desire to learn and improve myself. I continue to constantly improve myself by taking part in new projects and exploring new technologies.
    Featured Skill JavaScript
    Tinkercad
    Python
    Telephone
    CSS
    HTML
    C++
    C#
    Flutter
    iOS
    Android
    Computer
    Web & Mobile Design Consultation
  • $10 hourly
    Hello, I am Lal. I am a second-year student in Computer Programming at Kocaeli University of Health and Technology. I started to be interested in software in my senior year of high school and have been focusing mainly on front-end development.
    Featured Skill JavaScript
    Bootstrap
    CSS
    HTML
  • $35 hourly
    PROFESSIONAL PROFILE As a Full-Stack Developer, I specialize in developing high-performance and scalable web applications within the React, Next.js, Node.js, Express.js and Nest.js ecosystems. I am passionate about creating dynamic, modern, and high-performance projects using the latest technologies in order to bring beautiful digital experiences to life.
    Featured Skill JavaScript
    Tailwind CSS
    ExpressJS
    Next.js
    React
    Node.js
    International Development
    Product Development
    Web Development
    Web Application
  • $25 hourly
    Güçlü estetik bakış açısına sahibim bu sayede tasarım ilkelerini de göz önünde bulundurarak özgün tasarımlar yapabilirim. Olumsuz koşullarda çözüm bulmayı düşünmeye çalışırım. Ne istediğimi bilirim ve planlı, doğru çalışma yöntemleri ile en iyi sonuca ulaşmaya çalışırım. Ekip çalışmalarında uyumlu, sorumluluk sahibi bir ekip arkadaşı ve gerektiğinde çok iyi bir yöneticiyim.
    Featured Skill JavaScript
    ASP.NET
    Bootstrap
    CSS
    HTML
    UI/UX Prototyping
    WordPress
    Figma
    Web Development
    Web Application
  • $10 hourly
    Hi! I’m Malek, a Business Intelligence graduate with strong skills in data analysis, ETL, and dashboard development. I have hands-on experience using tools like Power BI, Talend, SSIS, and PostgreSQL, and I’m comfortable transforming raw data into clear, actionable insights. I also have a foundation in HTML, CSS, Bootstrap, MySQL, and PHP, which allows me to build or support simple web dashboards and internal tools. On top of that, I hold certifications in both Business Intelligence and Generative AI. Whether you need to clean and organize large datasets, create automated data pipelines, or build interactive dashboards for your team or clients — I’m here to help. Let’s work together to bring clarity and strategy to your data!
    Featured Skill JavaScript
    Talend Data Integration
    PostgreSQL
    MySQL
    PHP
    CSS
    HTML
    Python
    Database
    ETL
    Data Visualization
    Data Analysis
  • $10 hourly
    ⭐ Next.js Expert | 🎯 Frontend Developer with 7+ Years of Experience | 🏆 Founder & Technical Partner I’m a frontend developer with over 7 years of experience, specializing in modern JavaScript frameworks like React.js, Next.js, and Vue.js. As the founder of a software development company, I help businesses build fast, scalable, and user-focused web applications — from high-performance e-commerce platforms to conversion-optimized landing pages. With a strong focus on performance, SEO, and user experience, I deliver frontend solutions that don’t just look good — they drive results. I’ve worked with startups and established companies, always aiming to turn complex ideas into clean, maintainable, and scalable code. ✅ What I Can Help You With: Building modern web applications using React.js / Next.js Developing responsive and accessible UIs with Tailwind CSS / Shadcn UI Creating SEO-optimized and fast-loading websites Integrating Headless CMS, REST APIs, and real-time features Providing ongoing support and enhancements for existing projects 🔧My Tech Stack: React.js, Next.js, Vue.js TypeScript, JavaScript Tailwind CSS, Shadcn UI Node.js, Prisma REST API, tRPC Clients choose to work with me because I offer: Professional and high-quality results Clean and scalable code that follows best practices Clear and consistent communication Regular progress updates Quick response times and reliable support I’m not just here to code — I’m here to understand your business and help you build digital experiences that truly make an impact. Let’s bring your vision to life.
    Featured Skill JavaScript
    Landing Page
    Websockets
    Firebase
    MongoDB
    PostgreSQL
    SCSS
    SaaS
    CSS
    REST API
    TypeScript
    Node.js
    Vue.js
    React
    Next.js
  • $10 hourly
    Looking for a web developer who can turn your ideas into reality with beautiful, fast, and scalable websites and applications? You just found the right person! 👋 I'm a dedicated Full-Stack Developer with strong expertise in the MEVN Stack (MongoDB, Express.js, Vue.js, Node.js) combined with modern frontend technologies like HTML, CSS, SCSS, JavaScript, and responsive UI/UX best practices. I build web solutions that don't just look amazing, but also perform flawlessly across all devices. ✨ What I Offer: - Fully custom websites and web apps - Clean, scalable backend systems - Sleek, mobile-first frontend designs - Admin dashboards, booking systems, CRMs, e-commerce platforms - SEO-friendly, high-performance development - Ongoing support and maintenance after delivery 🛠️ Tech Stack: - Frontend: HTML5, CSS3, SCSS, JavaScript (ES6+), Vue.js - Backend: Node.js, Express.js - Database: MongoDB - API Integration, Authentication Systems, Payment Gateways 🔥 Why Choose Me? - High-quality code, clean architecture - Fast communication and friendly collaboration - Attention to detail — both design & functionality - Strict on-time delivery - 100% client satisfaction mindset 💬 Let's Talk About Your Project! No matter how small or big your idea is, I’m ready to help you bring it to life. Send me a quick message — I respond fast and would love to discuss how we can work together! 🚀
    Featured Skill JavaScript
    Clean Architecture
    REST API
    Responsive Design
    Front-End Development
    TypeScript
    .NET Core
    Angular
    Vue.js
    ExpressJS
    MongoDB
    Node.js
    Java
    HTML5
    CSS 3
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