Upwork home
Sign up
Secondary

Hire the best JavaScript Developers in Helsinki, FI

Check out JavaScript Developers in Helsinki, FI with the skills you need for your next job.
Hire freelancers
  • $20 hourly
    • 5.0/5
    • (17 jobs)
    ✋ Hello there! I'm a Top Rated skilled Frontend developer with a proven track record of creating high-quality websites and web applications. With my extensive experience in frontend development, I'm confident in my ability to exceed your expectations. 💻 My Skills and Experiences: ✅ Angular.js & React.js ✅ State Management like Ngrx & Redux Tool kit ✅ Ngrx Translation & Router Localization( eg. " /en/home" , "/ne/home" ) ✅ Framer Animation , GSAP Animation ✅ Website Theme Customization (eg. Dark Mode and Light Mode) ✅ ApexCharts.js & Charts.js ✅ HTML5, CSS3, and SASS/SCSS ✅ UI Libraries: Bootstrap, Material-UI , Angular Material. ✅ Proficient in working with Headless CMS platforms like Sanity CMS ✅ Well experienced in Integrating Api's By leveraging my expertise in these technologies and tools, I can provide you with seamless and visually stunning frontend solutions. I am well-versed in creating responsive designs that engage users and deliver a remarkable user experience. With a keen eye for detail and a commitment to delivering clean and maintainable code, I ensure that the websites and web applications I build are optimized for performance and accessibility. I am passionate about staying up-to-date with the latest industry trends and best practices, allowing me to incorporate cutting-edge techniques into my work. This ensures that your project will not only meet but exceed modern standards. Let's collaborate on your next frontend project and create a website or web application that captivates your audience and drives results.
    Featured Skill JavaScript
    Sass
    GSAP
    BEM
    API Integration
    PSD to HTML
    Git
    Angular
    TypeScript
    Bootstrap
    Figma
    HTML5
    CSS 3
    SCSS
    React
  • $55 hourly
    • 5.0/5
    • (37 jobs)
    Hey! I'm developing sites using Jamstack technology Astro, Gatsby, and Next.js. I have built over 80+ Jamstack sites that my clients can edit themselves using a CMS such as Storyblok or Contentful. ⭐️ Why me? - I have been freelancing since 2019 and don't plan on stopping - My clients trust me, for an example I have handled a domain transfer worth $30,000 for a client - I am available most days and certainly every week - I work great in teams, some of the companies I provide development to have over 100+ employees, out of which a great amount are developers - My clients tend to turn into long-term clients thanks to the great work I provide, I still have clients from the year I started - I work great solo too, I can launch a site by completing every step along the way ⭐️ My main technologies, you can combine them as your tech stack: - Astro - Gatsby - Next.js - Headless CMS (look below) - HTML / CSS / JavaScript - Node.js ⭐️ CMS platforms that I have provided real production websites with: - Storyblok - Contentful - Dato CMS - Prismic - Agility - Strapi - WordPress - Directus - Shopify
    Featured Skill JavaScript
    Next.js
    Amazon Web Services
    RESTful API
    React
    Content Management System
    GitHub
    Gatsby.js
    Web Development
    Contentful
    Landing Page
    SCSS
    CSS
    Website
    API
    HTML
  • $65 hourly
    • 5.0/5
    • (2 jobs)
    I'm a full-stack developer currently working full-time with Veikkaus, which is the largest online betting betting and gambling services provider, as well as the most visited eCommerce site in Finland. On my off-time I also deliver clients state-of-the-art solutions with modern technologies such as NextJS, React, Shopify, NodeJS, etc. I can set up and do technical customizations to Shopify Stores as well as other websites. My skillset: NextJS, React, TypeScript, full-stack web development, frontend development, backend development, Shopify development. HTML, CSS, JavaScript, SEO, Analytics.
    Featured Skill JavaScript
    SQL
    MongoDB
    Bootstrap
    Shopify SEO
    Shopify Theme
    Shopify
    API
    Web Application
    Node.js
    CSS
    HTML
    React
    Next.js
    TypeScript
  • $36 hourly
    • 5.0/5
    • (3 jobs)
    🔸 6+ Years of Fullstack expertise: SaaS, B2G, Enterprise, Fintech, AI, Crypto, Bots 🔸 Computer Science Degree: blending theoretical prowess with innovative practice 🔸 Versatile in team and solo works 🔸 Reach out to know more! Greetings, I'm Yuriy, a dedicated Fullstack Developer. I specialize in crafting intelligent and dynamic applications, leveraging my skills in AI, Python, and an array of cutting-edge technologies. Let's turn your ideas into reality! 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀 & 𝗧𝗼𝗼𝗹𝘀: HTML, CSS, JavaScript, jQuery, TypeScript, C++, Python, Django, Flask, Pyramid, LESS, SASS, AJAX, JSON 𝗨𝗜 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀 & 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀: Bootstrap, Tailwind CSS, Material UI, Ant Design (Antd), Grunt, Git, Liquid, Bootstrap, Webpack, Lodash, CSS3, HTML5, GraphQ 𝗦𝗲𝗿𝘃𝗲𝗿-𝘀𝗶𝗱𝗲: Python: Django, Flask Node.js: Express, GraphQL (with Apollo Server), REST 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: MySQL, SQL Server, PostgreSQL, Oracle, SQLite, MariaDB, MongoDB, Cassandra 𝗖𝗹𝗼𝘂𝗱 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀: Azure, Azure Functions, Azure DevOps, Firebase, Firebase Realtime Database, Firebase Cloud Functions, AWS, AWS Lambda, AWS EC2, AWS S3, AWS RDS, Google Cloud Platform, GCP Compute Engine, GCP App Engine 𝗧𝗵𝗲 𝗣𝗿𝗼𝗰𝗲𝘀𝘀 𝗼𝗳 𝘄𝗼𝗿𝗸: Consultation 〉 Estimate 〉 Plan 〉 Develop 〉 Test 〉Deploy〉Support Transparency of the process & sync on every step. 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲: 🔸 Ensuring your projects stand out in the competitive tech landscape 🔸 Troubleshooting, rigorous testing, and comprehensive documentation 🔸 Proven track record from Fullstack development to AI 🔸 Your success is my priority. Adapt and create solutions that match with your vision Reach out to step into a realm of technological excellence. Let's create a legacy of innovation!
    Featured Skill JavaScript
    API
    AWS Application
    Python Script
    JSON
    GraphQL
    Vue.js
    TypeScript
    Flask
    Web Application
    Python
    SQL
    React
    Django
    Web Development
  • $74 hourly
    • 5.0/5
    • (1 job)
    I specialize in full-stack software development, fluent in Java, Python, and a JavaScript tech stack (React, TypeScript, Node.js, MongoDB). My journey began with mastering Java, leading to significant roles where I developed scalable software solutions. I then transitioned to full-stack development, designing and implementing end-to-end web applications that prioritize user experience and system efficiency. My expertise lies in bridging the gap between front-end and back-end technologies, ensuring seamless integration and performance. Committed to innovation and continuous learning, I excel in dynamic environments, bringing both technical prowess and a collaborative spirit to every project. Ready to tackle complex challenges, I aim to deliver top-tier solutions that drive success.
    Featured Skill JavaScript
    Figma
    React Native
    Redux
    TypeScript
    React
    GraphQL
    MongoDB
    Java
    Python
  • $100 hourly
    • 5.0/5
    • (10 jobs)
    𝐔𝐧𝐥𝐨𝐜𝐤𝐢𝐧𝐠 𝐭𝐡𝐞 𝐅𝐮𝐭𝐮𝐫𝐞 𝐨𝐟 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐲 𝐟𝐨𝐫 𝐅𝐨𝐫𝐰𝐚𝐫𝐝-𝐓𝐡𝐢𝐧𝐤𝐢𝐧𝐠 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞𝐬 🚀 With over a decade of hands-on experience, I’ve helped startups and enterprises alike navigate the evolving digital landscape. My expertise lies in turning 𝐚𝐦𝐛𝐢𝐭𝐢𝐨𝐮𝐬 𝐢𝐝𝐞𝐚𝐬 into 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 solutions through 𝐛𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧, 𝐀𝐈, 𝐖𝐞𝐛𝟑, and 𝐟𝐮𝐥𝐥-𝐬𝐭𝐚𝐜𝐤 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭. I work closely with my clients to solve complex problems and scale their operations, making sure every solution is tailored to their unique needs. I’m passionate about helping businesses tap into the power of 𝐝𝐞𝐜𝐞𝐧𝐭𝐫𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧 and 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧. Whether you're in 𝐟𝐢𝐧𝐚𝐧𝐜𝐞, 𝐡𝐞𝐚𝐥𝐭𝐡𝐜𝐚𝐫𝐞, or any industry looking to leverage cutting-edge technology, I provide the tools and strategy to ensure your business stays ahead. 𝐇𝐞𝐫𝐞’𝐬 𝐖𝐡𝐚𝐭 𝐈 𝐁𝐫𝐢𝐧𝐠 𝐭𝐨 𝐭𝐡𝐞 𝐓𝐚𝐛𝐥𝐞: 𝐅𝐮𝐥𝐥-𝐒𝐭𝐚𝐜𝐤 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: I build clean, scalable web and mobile applications using technologies like 𝐑𝐞𝐚𝐜𝐭𝐉𝐒, 𝐕𝐮𝐞.𝐣𝐬, 𝐍𝐨𝐝𝐞𝐉𝐒, and 𝐏𝐨𝐬𝐭𝐠𝐫𝐞𝐒𝐐𝐋. From 𝐌𝐕𝐏𝐬 to enterprise-grade platforms, I deliver results that can grow with your business. 𝐖𝐞𝐛𝟑 & 𝐁𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧: I specialize in 𝐝𝐞𝐜𝐞𝐧𝐭𝐫𝐚𝐥𝐢𝐳𝐞𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 (𝐃𝐀𝐩𝐩𝐬), 𝐬𝐦𝐚𝐫𝐭 𝐜𝐨𝐧𝐭𝐫𝐚𝐜𝐭𝐬, 𝐃𝐞𝐅𝐢 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬, and 𝐬𝐞𝐥𝐟-𝐬𝐨𝐯𝐞𝐫𝐞𝐢𝐠𝐧 𝐢𝐝𝐞𝐧𝐭𝐢𝐭𝐲 (𝐒𝐒𝐈) solutions, working with 𝐄𝐭𝐡𝐞𝐫𝐞𝐮𝐦, 𝐇𝐲𝐩𝐞𝐫𝐥𝐞𝐝𝐠𝐞𝐫, 𝐒𝐨𝐥𝐚𝐧𝐚, and 𝐂𝐨𝐫𝐝𝐚 to create secure, decentralized ecosystems. 𝐀𝐈-𝐏𝐨𝐰𝐞𝐫𝐞𝐝 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐨𝐧𝐬: My AI expertise includes creating 𝐦𝐚𝐜𝐡𝐢𝐧𝐞 𝐥𝐞𝐚𝐫𝐧𝐢𝐧𝐠 𝐦𝐨𝐝𝐞𝐥𝐬, 𝐩𝐫𝐞𝐝𝐢𝐜𝐭𝐢𝐯𝐞 𝐚𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬, and 𝐬𝐦𝐚𝐫𝐭 𝐚𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 tools that help businesses streamline operations and make data-driven decisions. 𝐄𝐧𝐭𝐞𝐫𝐩𝐫𝐢𝐬𝐞-𝐆𝐫𝐚𝐝𝐞 𝐂𝐥𝐨𝐮𝐝 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬: I architect and deploy 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞 𝐜𝐥𝐨𝐮𝐝 𝐢𝐧𝐟𝐫𝐚𝐬𝐭𝐫𝐮𝐜𝐭𝐮𝐫𝐞𝐬 using 𝐀𝐖𝐒, 𝐀𝐳𝐮𝐫𝐞, and 𝐆𝐨𝐨𝐠𝐥𝐞 𝐂𝐥𝐨𝐮𝐝 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 (𝐆𝐂𝐏), ensuring that your operations run smoothly and securely, even as your business grows. 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 𝐒𝐭𝐨𝐫𝐢𝐞𝐬: 🌐 𝐁𝐮𝐢𝐥𝐭 𝐚 𝐜𝐫𝐨𝐬𝐬-𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐝𝐢𝐠𝐢𝐭𝐚𝐥 𝐰𝐚𝐥𝐥𝐞𝐭 using blockchain for identity management, supporting millions of users with secure, decentralized identity verification. 💸 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐝 𝐚 𝐛𝐥𝐨𝐜𝐤𝐜𝐡𝐚𝐢𝐧-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐅𝐗 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 that reduced cross-border transaction fees by 96%, receiving recognition from the 𝐌𝐨𝐧𝐞𝐭𝐚𝐫𝐲 𝐀𝐮𝐭𝐡𝐨𝐫𝐢𝐭𝐲 𝐨𝐟 𝐒𝐢𝐧𝐠𝐚𝐩𝐨𝐫𝐞. 🔮 𝐂𝐫𝐞𝐚𝐭𝐞𝐝 𝐀𝐈-𝐩𝐨𝐰𝐞𝐫𝐞𝐝 𝐩𝐫𝐞𝐝𝐢𝐜𝐭𝐢𝐯𝐞 𝐚𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬 𝐭𝐨𝐨𝐥𝐬 for DeFi platforms, allowing businesses to make real-time, data-driven decisions. 📍 𝐓𝐚𝐫𝐠𝐞𝐭 𝐌𝐚𝐫𝐤𝐞𝐭𝐬: My focus is on helping businesses in the 𝐄𝐔 (𝐅𝐢𝐧𝐥𝐚𝐧𝐝, 𝐆𝐞𝐫𝐦𝐚𝐧𝐲, 𝐍𝐨𝐫𝐰𝐚𝐲), 𝐒𝐢𝐧𝐠𝐚𝐩𝐨𝐫𝐞, 𝐭𝐡𝐞 𝐌𝐢𝐝𝐝𝐥𝐞 𝐄𝐚𝐬𝐭 (𝐔𝐀𝐄, 𝐒𝐚𝐮𝐝𝐢 𝐀𝐫𝐚𝐛𝐢𝐚), and 𝐭𝐡𝐞 𝐔𝐒𝐀. I’ve successfully delivered projects across these regions, and I’m always eager to help companies looking to push the boundaries of technology. 🤝 𝐋𝐞𝐭’𝐬 𝐂𝐫𝐞𝐚𝐭𝐞 𝐒𝐨𝐦𝐞𝐭𝐡𝐢𝐧𝐠 𝐑𝐞𝐦𝐚𝐫𝐤𝐚𝐛𝐥𝐞 𝐓𝐨𝐠𝐞𝐭𝐡𝐞𝐫. I’m not just here to provide technical solutions; I’m here to partner with you to ensure that your business achieves real, measurable results. I’m passionate about delivering solutions that don’t just work today, but continue to drive value long into the future. Reach out, and let’s start building something impactful together.
    Featured Skill JavaScript
    Google Cloud Platform
    TensorFlow
    Natural Language Processing
    Artificial Intelligence
    AI Agent Development
    AI Bot
    Machine Learning
    Blockchain
    Vue.js
    AngularJS
    ExpressJS
    MongoDB
    Node.js
    React
  • $70 hourly
    • 4.9/5
    • (68 jobs)
    🥇 Top 1% in Website design and web application development 🏆 Top Rated by Upwork for Long-Term Engagements 💎 Trusted by 60+ verified clients on Upwork 🚀 100% Client Satisfaction Rate 📈 2800+ hours clocked 🔹 Website Design 🔹 Website Building 🔹 Website Optimization 🔹 Website Maintenance 🔹 Web Development (HTML, CSS, JavaScript, Responsive Design, React, Angular, WordPress, woocommerce) 🔹 Webflow Development (Custom Designs, CMS Integration) 🔹 WordPress Development (Themes, Plugins, WooCommerce) 🔹 Content Design Services Skillset Integration 🛠️ WordPress 🛠️ WooCommerce 🛠️ Elementor Pro 🛠️ Shopify 🛠️ Full stack Development 🛠️ HTML, CSS, Bootstrap, JavaScript, Angular, React 🛠️ Wordpress 🛠️ Database : MySQL, SQL Server 🛠️ WooCommerce 🛠️ Eccommerce 🛠️ Theme customization 🛠️ PSD to Wordpress 🛠️ PSD to HTML 🛠️ Wordpress e-commerce 🛠️ Site Optimization and SEO 🛠️ Yoast SEO 🛠️ Elementor 🛠️ eCommerce: nopCommerce, WooCommerce 🛠️ CMS: WordPress 🛠️ WordPress Development 🛠️ Payment Gateways integration in WordPress Benefit - Well-structured and clean code with elegant reusable components - Great communication with conversational English - Quick learner & problem solver - Hard-working and Energetic - 24/7 Available - Very responsive - Committed and focused towards work ▫️ Upwork Categories ▫️ Full stack development, WordPress, Elementor, Ecommerce, Custom Design, Responsive Website, User friendly Design, web application, Online Store, CRM, CMS, Web & Mobile site, Design pages, Landing Page, Web developer, Mobile friendly design, responsive, HTML, CSS, JavaScript, PHP, React, Angular, React JS, Theme, .Net, C#, Stripe integration, API; Integration Plugins, Responsive design, Mobile Pages, App, Wireframing, Landing pages, Web application, Website, Blogs, Senior Developer, Expert Designer, Senior Developer, Responsive Design, Graphic Design, Android Mobile Design, Branding, Brand Identity, iOS App Design, User Experience, Logo Design, Web Design, Landing Page Design, eCommerce App Design, Website, UI/UX Design, iPhone Design, UI Research, User Experience Design, User Flow, Webflow Design, Responsive, Platform Creation, Mock-up, SAAS, Graphic Design, User experience design, Web design, E-commerce app design, Design Desktop, Android App Design, Application Design, Backend development, front end development, customization, custom design, Theme customization, Redesign website, Modern design, Google, Icon Design, Figma, MockUp Design, Application, Landing Pages Design, Redesign, Website Prototyping, WordPress, Interaction Design, Pitch Deck Presentation Design, Management, A/B Testing, User interface designs, Shopify, Wix design, Editor, eCommerce Web Design, Wireframe to web pages, Figma to web page, PSD to HTML, Wireframe to HTML, SaaS Platform development, SaaS Product, Quick Websites, Admin Panel, Drag & drop Web designs, SEO, Search,Guidelines, Webflow Development, Web-design, iOS Guidelines, Fintech, iOS, SaaS Project Design, App Design, User Experience Design, Design Strategy, Design Consultation, Experienced Developer, SaaS Platform, WordPress Implementation, WordPress Migration, Website Wireframing, Website Design, website development, Web Designer, Responsive Web Design, Landing Page Design, Design Solutions, Portfolio Website, Hubspot Design, Web Designer, Logo, Website creation, Website maintenance, Restaurant website, Real Estate Website, Business website, Web Development services, Full Stack developer, Wordpress developer, Web designer, SSL, Custom Website, Drop shipping, Elementor, Elementor Pro, DIVI, Speed Optimization, Search Engine Optimization, SEO Specialist, WPBakery Website Expert, eCommerce Website & Store Setup Expert, high performance websites, Custom code, Bug fixing, Web & App Developer, Product Listings,
    Featured Skill JavaScript
    Microsoft Active Directory
    Database
    React Native
    API
    Enterprise Software
    RESTful API
    Web Development
    JSON
    ASP.NET
    React
    Angular
    MySQL
    C#
  • $200 hourly
    • 4.8/5
    • (57 jobs)
    Hey there! I'm a Mechanical Engineer with deep experience in product design and manufacturing for CNC, molding and welded structures I have worked with different industries over the years, which include - Robotics and additive manufacturing - Drones and IoT - Vehicle and boat part design The tools I use: - Solidworks - COMSOL - Adams - Mastercam Let's set up a call
    Featured Skill JavaScript
    Ruby on Rails Stack
    Industrial Internet of Things
    REST API
    UX & UI Design
    Node.js
    GraphQL
    Ruby
    TypeScript
    Full-Stack Development
    Ruby on Rails
    UI/UX Prototyping
    Webflow
    Web Development
    Unbounce
  • $50 hourly
    • 5.0/5
    • (5 jobs)
    I am an experienced engineer with 4+ years of IT experience, building and building solid, reliable, awesome software solutions that can be stored in a MERN tech stack. I am able to prioritize well, I am able to communicate clearly, I am able to work across multiple project structures and carry many responsibilities at the same time. also, he has strong analytical ability and the ability to create new solutions. I have a consistent record of delivery and excellent software engineering skills with good software design experience, software life cycle management software, and expertise in editing, analysis, documentation, composition, editing, bug fixes, duplication, testing, deployment, and maintenance. ============ + JavaScript + TypeScript + Node.JS and Express.js + React.js + Redux, Express.js + Apollo Graph QL + Mongo DB, Amazon Dynamo, Mysql + HTML5, CSS3 (Minor and SASS) + Bootstrap, Basic + Gulp, WebPack, Grunt + IGit ============ SUMMARY + Webpage expertise in HTML5, CSS3, MVC, SASS, LESS, Object-Oriented Javascript, ES6, JQuery, AJAX, JSON, XML. A good understanding of the Object Model (DOM) and DOM Functions. + Extensive use of Node environment using NPM, Grunt, Gulp, Maven, Bower and Mongo DB to create server-side applications and wrote a MapReduce program to edit words in a file. + Expertise in creating user verification forms and using RESTful data transfer services on the server. + Powerful version that controls version GIT, GITHUB, Buck Bucket, and NPM Package manager, Bower. + Good understanding of RDBMS with Database Design, writing queries, and archived processes using data such as Oracle, MySQL and SQL Server. My profile also includes monitoring the complete construction of the life cycle from customer communication until the project is completed and working collaboratively across all functional areas to ensure delivery to customer satisfaction.
    Featured Skill JavaScript
    Web Development
    Front-End Development
    Back-End Development
    NestJS Development
    Next.js
    NestJS
    Node.js
    TypeScript
    MongoDB
    HTML
    Ecommerce Website
  • $19 hourly
    • 5.0/5
    • (1 job)
    I am a software engineer with a passion for creating modern and dynamic web applications in cloud environment. My studies and project experiences have given me exposure to modern web development where I built several front-end projects in React.Js, Typescript, CSS3 and back-end Rest APIs in Python, Node.js, Spring-boot. I have hands-on experience with ElasticSearch, Ruby-on-rails, Django as well. I have containerised both front-end and back-end applications and deployed them in docker environment e.g. AWS ECS Fargate, docker-compose, Kubernetes. I have hands-on experience with many services in AWS used for serving web applications. I also created Python/shell scripts to automate the deployment which is also used by CI/CD pipelines e.g. Github actions.
    Featured Skill JavaScript
    Microservice
    React Bootstrap
    Docker
    Redux
    Amazon ECS
    Firebase
    Node.js
    React
    HTML5
    CSS 3
    TypeScript
  • $25 hourly
    • 5.0/5
    • (9 jobs)
    Greetings, With over 5 years of experience, I am a seasoned Senior Full Stack Developer dedicated to transforming innovative ideas into reality. I've successfully delivered 200+ projects on various freelance platforms, providing robust web solutions and automations globally. ➡️ Key Full Stack Development Skills: Frontend Development: Expertise in ReactJS, NEXT.js, and modern styling with TailwindCSS. Proficient in jQuery and Bootstrap for responsive designs. Backend Development: Skilled in creating scalable applications using Node.js, ExpressJS, Django, and Flask. Database Integration: Experienced with SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases, ensuring data integrity and speed. ➡️ Automation and Web Scraping Expertise: Advanced Automation: Streamline operations using Puppeteer and Selenium in Python for tasks like mass account creation, document management, and data brute-forcing. Web Scraping: Extract data from various website architectures, including dynamic and JavaScript-heavy sites, utilizing tools like Beautiful Soup and Scrapy. ➡️ GIS Development and Data Visualization: Map Creation and Interaction: Generate dynamic maps and spatial data visualizations using OpenStreetMap, Google Maps API, Leaflet, and Folium. Software Proficiency: Well-versed in GIS tools like QGIS, GDAL, Esri’s ArcGIS suite, and Erdas Imagine. ➡️ Additional Capabilities: Data Processing and Management: Efficient handling of data formats including CSV, Excel, PDF, JSON, and XML. Interactive Graphs: Develop compelling visual narratives with Dash Plotly. Tools I regularly utilize include Selenium, Requests, Beautiful Soup, Scrapy for automation and web scraping; ReactJS, NEXT.js, TailwindCSS for front-end development; and Node.js, Django for back-end solutions. I am eager to contribute to your business growth by enhancing your digital presence or streamlining operations through meticulous automation. Let’s connect and explore how we can work together to achieve your objectives. Thank you for considering my profile. Best Regards, Aaqib Mehrban
    Featured Skill JavaScript
    MongoDB
    PostgreSQL
    Tailwind CSS
    React
    Next.js
    Selenium
    Node.js
    Python
    ArcGIS
    Data Visualization
    Web Development
    Web Application
    Django
    Flask
  • $10 hourly
    • 5.0/5
    • (1 job)
    I’m a full stack developer with 5 years of experience, currently at Vertics Oy, where I’ve been building web solutions since 2022. I’ve been in six projects, managing many of them, focusing on fast, scalable, and user-friendly web applications. Backend development: Building systems with RESTful APIs, GraphQL, and tRPC for handling data and service communication. Frontend development: Developing responsive applications with React.js, Next.js and Vue. UI libraries like Material UI, Chakra UI, and ShadcnUI. Styling components with TailwindCSS, CSS/SCSS. Mobile development: Creating cross-platform mobile apps with React Native and Expo to meet diverse user needs. Scalable architecture: Creating systems using Next.js server-side rendering (SSR), monorepos, React Query for data fetching, and Prisma ORM for database performance. CDNs and caching for faster load times. End-to-end project management: Managing projects from concept to deployment and setting up CI/CD pipelines for automated deployment. I’m skilled in Node.js, PostgreSQL, Docker, and a variety of cloud platforms. I choose the best tools and technologies based on project needs to ensure optimal outcomes. Beyond Vertics, I founded Sisu Video Oy, which helps businesses boost sales using video solutions. This entrepreneurial work gives me deeper insights into business needs, which I apply in my technical decisions.
    Featured Skill JavaScript
    Docker
    PostgreSQL
    Expo.io
    React Native
    Vercel
    GitHub
    HTML
    Git
    Node.js
    React
    Next.js
    CSS
    TypeScript
    Tailwind CSS
  • $15 hourly
    • 5.0/5
    • (2 jobs)
    A software developer with a passion for both front-end development and back-end development. I am a passionate full-stack web developer currently based in Finland, I bring a diverse skill set to the table, specialising in modern web development technologies. My expertise spans across front-end and back-end development, with proficiency in HTML5, CSS3, Sass, JavaScript, React, Node.Js Express, and MongoDB. In addition to my core web development skills, I have extensive experience with essential tools and technologies such as Git, DNS management, Docker, Jenkins, CI/CD pipelines, and GitHub Actions, enabling me to streamline workflows and improve development efficiency. My skills extend beyond coding into areas like SEO, Adobe Photoshop, Figma, and WordPress, giving me a well-rounded approach to creating user-friendly and optimised web experiences. I am also adept at utilising social media platforms such as Facebook, Twitter, Instagram, LinkedIn, and YouTube for effective marketing and engagement strategies, helping businesses connect with their audiences online. Whether working on collaborative projects or independent ones, I am always excited to create innovative digital solutions that align with both business and user needs. I'm always eager to learn, expand my skillset, and committed to staying up-to-date on the latest trends and technologies in the industry. As a person, I'm devoted to my responsibilities. My leadership style is collaborative and focused on achieving goals together. Let's connect and explore how I can help bring your software development projects to the next level! I’ll fully manage your project from start to finish Regular communication is really important to me, so let’s keep in touch!”
    Featured Skill JavaScript
    SCSS
    Sass
    Node.js
    React
    MongoDB
    Web Application
    ExpressJS
    HTML
    Web Development
    CSS
    TypeScript
    Web Design
    Website Optimization
    Search Engine Optimization
  • $25 hourly
    • 5.0/5
    • (1 job)
    I am a software developer with experience in building scalable and secure web applications that will enhance your business operations and performance, be it small or medium size. . I am experienced in HTML, CSS, JavaScript, NodeJs, Java and SpringBoot . I have very good organizational and excellent communication skills . Experienced with both water fall and agile project management methodologies . Time and time management are very important to me so I will ensure your project is delivered as at when due.
    Featured Skill JavaScript
    Automated Testing
    Responsive Design
    Solution Architecture
    Node.js
    API Development
    React
    WordPress
    Back-End Development
    Architectural Design
    Front-End Development
    Mobile App Development
    QA Testing
    Shopify
    React Native
  • $15 hourly
    • 5.0/5
    • (1 job)
    I am a newly graduate. I have studied business. I have some experience in office assistant in the past. Skills Fluent in English communication Good with writing Basic MySQL and Java knowledge Organized worker
    Featured Skill JavaScript
    SQL
    Writing
    Microsoft Word
    Microsoft PowerPoint
    Microsoft Excel
  • $15 hourly
    • 5.0/5
    • (2 jobs)
    I'm a developer experienced in Scala, Python, and C++. I have projects under my belt regarding AI, Machine Learning, Game Development, and Relational database management. I'm well versed in various software paradigms, so I'm fit to take on a variety of tasks! Whatever you need, I'm willing to give it a shot!
    Featured Skill JavaScript
    Software Architecture & Design
    Office 365
    Software
    Software Development
    Artificial Intelligence
    Software Design
    Machine Learning
    Database
    Scala
    C++
    PostgreSQL
    Python
    SQL
  • $20 hourly
    • 5.0/5
    • (2 jobs)
    Hi there! 👋 I’m a passionate and dedicated coding enthusiast currently pursuing my Bachelor’s in Engineering with a focus on Information and Communications Technology. I specialize in Python and love tackling all sorts of coding projects, from data analysis and automation to AI and machine learning. While Python is my go-to language, I’m flexible and happy to adapt to whatever tools or technologies your project needs. Here’s what I bring to the table: - Data Expertise:** Data analysis, visualization, and handling large datasets efficiently. - AI & Machine Learning:** Building intelligent solutions tailored to your needs. - Automation & Scripting:** Simplifying repetitive tasks and improving workflows. - Problem-Solving Skills:** I thrive on breaking down complex problems into clean, functional code. I’m eager to learn, quick to adapt, and committed to delivering quality results on time. Whether your project is big or small, I’m ready to help bring your ideas to life! Let’s work together to make your project a success. 🚀 Feel free to reach out – I’d love to hear about your ideas and how I can help! 😊
    Featured Skill JavaScript
    Machine Learning
    Data Analysis
    ETL
    R
    CSS
    HTML
    Database
    MySQL
    Python
    Machine Learning Model
    Artificial Intelligence
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    I’m a Full-Stack Web Developer with a focus on front-end design and user experience. I’ve built high-traffic platforms and responsive websites from scratch. * Skilled in HTML, CSS3, JavaScript, PHP, Laravel * Experienced with UI/UX design, API integration, and Debian-based server setup * Clear communication and on-time delivery are my priorities
    Featured Skill JavaScript
    RESTful API
    Tailwind CSS
    Bootstrap
    PostgreSQL
    MySQL
    Laravel
    PHP
    CSS
    HTML
    React
    Web Development
    Next.js
    Web Application
  • $75 hourly
    • 0.0/5
    • (0 jobs)
    I’m a senior frontend developer with 12+ years of experience delivering fast, accessible, and scalable React apps, including work for Yle (the national broadcaster of Finland) and Finnish Railways (VR Group). I specialize in helping product teams clean up messy frontends, pass accessibility audits, and kick off design systems with confidence. My background includes leading projects at Futurice, one of the top digital consultancies in the Nordics, and I’m used to collaborating across design, dev, and product. What I offer: • React & TypeScript codebase audits: Get clarity on bugs, tech debt, and performance bottlenecks • Accessibility reviews (WCAG 2.2 / EAA): Identify gaps and deliver clear, prioritized fix plans • Figma-to-React implementation: Pixel-perfect, accessible components from production-ready designs • Storybook design system setup: Build scalable, documented UI libraries • Frontend performance tuning: Lighthouse audits, lazy loading, and DX improvements Tools I use: React, TypeScript, Tailwind, Next.js, Redux Toolkit, React Testing Library, Vitest, Storybook, Lighthouse, Zod, purify-ts, Figma, and more. How I work: • Fixed-price or scoped projects • Async-friendly (EU timezone) • Clean handoff, docs, and optional Loom walkthroughs Let’s work together if you need fast clarity, solid code, or a second opinion on your frontend.
    Featured Skill JavaScript
    Tailwind CSS
    Web Accessibility
    UI/UX Prototyping
    Next.js
    Performance Optimization
    Code Review
    Code Refactoring
    Storybook
    Accessibility Testing
    Web Development
    Zurb Foundation
    Front-End Development
    TypeScript
    React
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    Web Developer, HubSpot Developer. I bring years of hands-on customer service experience, combined with deep expertise in CRM systems like HubSpot, more than 10 certificates, and Salesforce—where I'm a certified Admin. Over the years, I’ve earned multiple certifications while developing CRM-focused web solutions and driving growth strategies. My background blends tech skills with a strong customer-centric mindset, making me a powerful asset for any team / client looking to optimize their customer experience and operations.
    Featured Skill JavaScript
    Video Editing
    Photo Editing
    Salesforce CRM
    HubSpot
    Web Development
    Meteor.js Stack
    HTML
    Quality Assurance
    Software QA
    Beta Testing
    Ecommerce Website
    Web Application
  • $40 hourly
    • 0.0/5
    • (0 jobs)
    I’m Danilo, a full stack developer with a background in storytelling and award-winning journalism. After transitioning from media to tech, I’ve built multilingual, accessible websites using modern tools like Next.js, React, PostgreSQL, and AWS. Whether you need a responsive landing page, an admin dashboard, or a dynamic form with CI/CD pipelines — I deliver clean code, solid structure, and clear communication. Key Skills & Tools • React, TypeScript, Next.js, Node.js • PostgreSQL, MongoDB, GraphQL • AWS, Docker, GitHub Actions • UI: Tailwind CSS, Utopia, Figma • Testing: Cypress, Jest Let’s build something that works — and makes sense.
    Featured Skill JavaScript
    Figma
    macOS
    Linux
    TypeScript
    AWS Development
    PostgreSQL
    Golang
    Java
    Node.js
    Next.js
    React
    Ecommerce Website
    Web Application
    Web Development
  • $33 hourly
    • 0.0/5
    • (0 jobs)
    👋 Hi there! I'm a highly skilled Senior Full-Stack Developer with a strong focus on WordPress development, crafting fast, responsive, and scalable websites for clients across the globe. I specialize in building custom WordPress themes, WooCommerce stores, and optimizing sites for performance, SEO, and conversions. Whether you're a startup, agency, or entrepreneur, I bring expertise in modern WordPress stacks, combining clean code, pixel-perfect design, and scalable architecture to build sites that grow with your business. 🚀 How I Can Help You ✅ Design and build fully responsive WordPress websites (Elementor, Gutenberg, or custom-built) ✅ Develop custom themes & plugins tailored to your business needs ✅ Set up high-converting WooCommerce stores (product filters, checkout optimization, Stripe/PayPal) ✅ Optimize Core Web Vitals, site speed, and mobile performance ✅ Implement on-page SEO, schema markup, and technical optimization ✅ Migrate, troubleshoot, and maintain existing WordPress sites ✅ Integrate APIs and third-party services (CRMs, booking systems, email marketing, etc.) 🛠️ Tech Stack & Tools ✅ WordPress & CMS WordPress · WooCommerce · Elementor · Gutenberg · ACF · WPML · Yoast SEO · Rank Math ✅ Frontend HTML5 · CSS3 · JavaScript · Tailwind CSS · Bootstrap · jQuery ✅ Backend PHP · MySQL · Custom Theme & Plugin Development · REST API · WP CLI ✅ DevOps & Tools cPanel · Plesk · Cloudflare · Git · FTP · SSH SiteGround · WP Engine · Kinsta · Vercel · Netlify ✅ SEO & Optimization Google PageSpeed · GTmetrix · Lighthouse · Schema.org · Caching · CDN Yoast · RankMath · SEOPress ✅ Design & UI Tools Figma · Adobe XD · Photoshop 📩 Let’s Build Together! From landing pages and eCommerce stores to complex multisite platforms, I help clients get real business results with powerful, scalable WordPress solutions. I’m proactive, detail-oriented, and focused on building long-term value through every project. ✅ Open to short- and long-term collaborations — message me to get started! 🏆 Keywords #WordPressDeveloper #WooCommerce #Elementor #CustomThemes #WPExpert #WebsiteOptimization #SEOWordPress #PageSpeed #Gutenberg #ACF #PHPDeveloper #WPML #eCommerce #FullStackDeveloper #TechnicalSEO #MobileResponsive #CrossBrowserTesting #CleanCode #LandingPages #SpeedOptimization #WordPressMaintenance #APIs #WPAPIs #CoreWebVitals #ConversionFocusedDesign #UXUI #TailwindCSS #Bootstrap
    Featured Skill JavaScript
    Git
    Tailwind CSS
    MySQL
    REST API
    Responsive Design
    Page Speed Optimization
    SEO Content
    PHP
    Plugin Development
    WordPress Theme
    Elementor
    WooCommerce
    WordPress
    Web Development
  • $30 hourly
    • 5.0/5
    • (1 job)
    Several years of combined software development experience on both client and server side. - Programming in C#, Java, Unity - Mobile development on iOS and Android using Unity - Windows Software development using C# and Visual Basic - Full Stack development, HTML5, CSS, Javascript, MySQL, React, MongoDB, GraphQL - Facebook SDK - Google App Engine - Clean code and high quality
    Featured Skill JavaScript
    Unity
    Android
    Google App Engine
    Blender
    Java
    React
    Node.js
    AngularJS
    C#
  • $100 hourly
    • 5.0/5
    • (3 jobs)
    🟢Available Now 🛑 Do you want a website that converts visitors into customers but are afraid you will hire a freelancer that falls short on expertise, communication and service? 🥇I design, develop and manage websites that drastically help my clients to sell their products and services online without the headache that comes from dealing with the typical low-cost freelancers. ⭐⭐⭐⭐⭐ "Sami was awesome to work with - he helped my team build a dropshipping ecommerce store from scratch and we were breaking sales records within months of launching. Highly recommend." - My Client ❤️ ⭐⭐⭐⭐⭐ "I approached Sami for our 2nd website build for a new product offering and without a doubt exceeded our expectations. More than happy to endorse a top-notch talent to build websites that convert." - My Client ❤️ Here are some of the results my clients are getting: 💰 Website is generating 6 figures annually and growing 💰 E-commerce store that I build allowed a company to start selling physical products to their service based business clients 💰 Website that I build allowed part time freelancer to turn into full-time freelancer We may be a great fit if you are thinking: ✅ “I am NOT website expert, and I don’t have time to mess around with it” ✅ “The website I already have is not converting - I don’t want that EVER again” ✅ “I already have a website & traffic - WHY aren’t we maximizing it?” ✅ “Every time I send traffic to my website it’s not converting - We’ve lost revenue” ✅ “I need someone to take this project, and get it done RIGHT - the first time!” Working with me, you will: 😍 Get visually stunning website that is fully functional and optimized for conversions 😍 Maximize the profitability of your website without the struggle of figuring it out yourself 😍 NOT have to hire a website designer, content creator and web developer and HOPE that they work well together 😍Receive tailored solutions: Recognizing the distinctiveness of each business, I invest time in comprehending your specific goals, audience, and brand identity. This enables me to craft customized web design solutions that authentically resonate with your unique needs 😍Enjoy effortless partnership: Leveraging strong communication skills, I collaborate closely with you throughout the design process, ensuring your vision comes to life and that your feedback is seamlessly integrated at every step 😍Get punctual delivery & dedicated support: I prioritize deadlines and commit to delivering your project promptly and within the specified budget, all while maintaining exceptional quality. Additionally, I provide continuous support to keep your website consistently fresh and up-to-date I have built multiple websites from scratch that generate hundreds of thousands in profit annually for clients. I am well-versed in the technical aspects of websites and sales strategies that professionals use to boost conversions. This sets me apart from the typical web designer and developer. My background in numbers 🤯 +10 years of experience with all major platforms, including Wordpress, Shopify & WooCommerce 🤯 Hundreds of thousands in profits generated for my clients last year (2024) 🤯 100% client satisfaction (check my testimonials) SOUND LIKE A FIT? Click the green “Invite to job” button in the right-hand corner & send me a message to discuss more 💬 I look forward to talking with you - Sami ⭐⭐⭐⭐⭐
    Featured Skill JavaScript
    Webflow
    Squarespace
    Website Redesign
    WordPress Website
    Website
    Graphic Design
    Web Design
    Website Optimization
    Conversion Rate Optimization
    WordPress
    Website Builder
    PHP
    WordPress Development
    Web Development
  • $9 hourly
    • 0.0/5
    • (0 jobs)
    Hi there! My name is Levon. I'm a full stack developer and HubSpot expert with almost 3 years of experience in the industry. I know my way in HubSpot pretty well. I'm proficient in working with the HubSpot API and Operations hub as well as HubSpot CMS for building custom websites. I have created multiple integrations with third-party apps and worked in the website projects. As a responsible and detail-oriented developer, I enjoy taking on new challenges and working on complex projects. I have a strong commitment to delivering high-quality code that meets the needs of my clients. If you're looking for a developer to get involved in your HubSpot projects, I'd love to hear from you! Feel free to reach out to me with any questions or project ideas you may have.
    Featured Skill JavaScript
    CSS
    HTML
    Material UI
    Data Integration
    RESTful API
    API Integration
    Git
    Redux
    React
    Node.js
    Bash
    C
    HubSpot
    Linux
  • $25 hourly
    • 0.0/5
    • (0 jobs)
    Social and positive person, who loves working with people (getting energy out of it!). My passion for circular economy and programming started during my studies in Bioeconomy, where I saw the potential of combining the two fields together. Been working at my current position mostly with Next.js, React & TypeScript and on my personal projects been using GraphQL on my recycling app. Creating an app (on react native) where I want to help and motivate people to recycle more efficiently here in Finland. What motivates me the most at work, is the feeling when working towards a service/product which has a positive impact in our society!
    Featured Skill JavaScript
    Cypress
    Storybook
    Next.js
    CMS Framework
    React Native
    React
    CSS
    API
    HTML
    GraphQL
  • $30 hourly
    • 0.0/5
    • (0 jobs)
    Hello! I am Anushka, a versatile and results-driven data professional with 3+ years of experience in data engineering and data analysis. Currently, I work at Capgemini Finland, consulting for a leading Nordic bank in the banking industry. My expertise spans the paper manufacturing and machinery sectors also. I excel in designing and implementing robust data pipelines using Azure Data Lake, Azure Synapse Analytics, and Azure Data Factory, ensuring seamless data flow and integration. My analytical skills are sharpened through extensive use of SQL, Python, Power BI enabling me to uncover insights and drive data-driven decisions. With strong capabilities in MS Azure, Google Cloud Platform (GCP), Cloudera Hadoop (Hive & Impala), I manage and analyze large datasets efficiently. I also create visually compelling and user-friendly dashboards with Power BI, presenting complex data in an understandable format. My technical prowess, coupled with my adaptability across cloud platforms, makes me a valuable asset for the data consultancy project. Technology Skill: MS Azure (Azure Data Lake Gen2, Data Factory, Synapse) Google Cloud Platform (BigQuery) SQL SSMS (SQL Server Management Studio) Cloudera Hive & Impala Apache Spark Hadoop JavaScript Google App Script MS Power BI Google Data Studio Tableau Python R Programming Language Matlab Dax & Power Query MS Excel IBM DataStage Designer OBIEE Tool Industry Knowledge: Paper Machinery Industry Electrical Industry Banking Industry Let’s connect and discuss how I can help you achieve your data goals!
    Featured Skill JavaScript
    MATLAB
    Tableau
    Oracle OBIEE Plus
    Microsoft SQL Server
    IBM DataStage
    Microsoft Excel
    R
    Google Apps Script
    Apache Impala
    Apache Hive
    Apache Hadoop
    Google Cloud Platform
    Microsoft Azure
    Microsoft Power BI
    Python
    SQL
  • 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 Helsinki, on Upwork?

You can hire a JavaScript Developer near Helsinki, 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 Helsinki, 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 Helsinki, 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.