Hire the best JavaScript Developers in Gdynia, PL

Check out JavaScript Developers in Gdynia, PL 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 608 client reviews
  • $35 hourly
    Hello, I’m Dmytro, a strong Frontend developer with 6 years of hands-on experience efficiently coding websites and applications. My expertise lies in JavaScript, Angular (versions 6 and above), HTML, and CSS. Throughout my career, I have focused on good programming practices, demonstrating dedication, responsibility, and a collaborative mindset when working with teams. I have also expanded my skills by extending my knowledge with the React stack, including React, Redux, styled-components, Material-UI (MUI), and Next.js. I have successfully completed projects using these technologies, showcasing my ability to adapt and excel in different frameworks. Here is a summary of my main stack: - UI Frameworks: I am proficient in working with popular UI frameworks such as Bootstrap, Semantic UI, Material UI, Foundation, and Materialize. I can use these frameworks to create visually appealing and responsive interfaces. - CSS: I have experience working with CSS pre-processors like SASS and PostCSS, enabling me to write modular and maintainable styles for web applications. - JavaScript and TypeScript: I am skilled in both JavaScript and TypeScript, allowing me to write clean and type-safe code while leveraging the latest language features and best practices. - Angular: I have extensive experience working with Angular (versions 6 to 15) and Angular Material, utilizing Angular’s core concepts, components, and services to build robust and scalable applications. - Task runners: I am proficient in using task runners like Webpack, Grunt, and NPM to optimize and automate various development tasks, enhancing efficiency and productivity. Additionally, I have enhanced my skills in backend development by completing the OpenJS Foundation exam in Node.js. This enables me to assist with backend tasks if the need arises. If you are looking for a dedicated Frontend developer with expertise in Angular, React, and a willingness to assist on the backend, I am excited to collaborate and bring your projects to life.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Node.js
    SCSS
    RxJS
    styled-components
    Redux
    Material UI
    Next.js
    Web Development
    TypeScript
    Bootstrap
    Angular Material
    CSS 3
    React
    Angular
  • $50 hourly
    Hello! I'm Patryk, a versatile and passionate Front-end Developer / Creative Developer and Web Animator. With over 10 years in the IT industry, I've honed my skills in crafting engaging digital experiences and intuitive web applications. 🚀 What I Offer - Building web apps with Vue.js / Nuxt.js, complete with animations and e-commerce capabilities. - Developing WordPress custom themes with e-commerce integration. - Creating web animated banners with GreenSock and ScrollMagic. - Developing layouts with CSS Grid. - Crafting SVG draw, morph animations, Web Animations HTML 5, and Canvas Animations. - Converting PSD to HTML. 🌟 My Professional Journey Led creative projects at TastySites, ensuring digital masterpieces that connect with audiences worldwide. Collaborated with top-tier agencies (Baernholdt, GreenRubino, AKA, We Push Buttons) on projects for clients like Novo Nordisk, Disney, Mazda, and Paco Rabanne. 👨‍💻 Freelance Expertise Over a decade of freelancing experience, building lasting relationships and continuously evolving in my craft. Committed to delivering excellence and enjoying the collaborative process. 🌱 Life Beyond Screens Nature lover and avid reader, exploring everything from sci-fi and fantasy to personal development. Enthusiastic about sharing my drone and GoPro adventures, blending technology with the beauty of nature. 🔗 Let's Collaborate Eager to discuss new projects, offer guidance, or chat about the latest in web development and nature adventures. Check out my portfolio at TastySites.pl for a glimpse of my work. Looking forward to creating amazing projects with you on UpWork! Have a great one!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Web Application
    Figma
    Animation
    Web Development
    CSS 3
    API Integration
    Ecommerce Website Development
    Tailwind CSS
    GSAP
    SVG
    Front-End Development
    Three.js
    WordPress
    Nuxt.js
  • $33 hourly
    Magento Certified Developer Plus http://www.magentocommerce.com/certification/directory/dev/65596/ Magento Test Score : 4.90 (Top 10%) Django Test Score : 5.00 (1st Place) Node.js Test Score : 5.00 (1st Place) Here are some of my Magento Skills Set - Magento Installation and Setup. - Magento Theme Installation and Customization. - Magento Extension Installation. - PSD Development according to user requirements. - PSD to Magento theme conversion. - Magento Responsive theme development. - Magento Extension Customization. - Magento Extension Development. - Magento speed optimization. - Magento Bug Fixes. - Magento Support and Maintenance - Magento version up-gradation. - Magento Data Export & Import. - Magento SEO. Here are some of my Django/Python Skills Set - Python frameworks: Django, Scrapy, Flask, Python-numpy. - Databases - MySQL, PostgreSQL, MongoDB - Specific tools: South, Haystack (Solr), Celery, Django-CMS, Django REST Framework, Tastypie, Flask-RESTful etc... I have created a lot of sites using Magento for about 5 years and a lot of sites using Django/Python for about 2 years. I'm a full time freelancer (10+ hours per day and 6+ days and week) that work from home.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Magento
    AngularJS
    Django
    Node.js
    HTML5
    Python
    CSS 3
    jQuery
  • $55 hourly
    I've gained a bachelor of microelectronics systems degree by graduating from the University of Technology in Gdańsk on computer science faculty. I've over 3 years of experience in developing web apps. My main language of choice is python however I've learned JavaScript to work with frameworks for building SPA apps. Technologies that I use in projects are mostly Angular, React, Django, Django REST framework, HTML5, CSS3/SASS. I consider coding as my hobby, therefore I’m open to learning any new technology. I put a lot of effort to code quality, tests, and performance.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    REST API
    Azure DevOps
    Google Cloud Platform
    CI/CD
    OpenAI API
    DevOps
    Amazon Web Services
    Docker
    Angular
    NGINX
    Django
    Git
    Python
    SQL
  • $40 hourly
    - Eager Software Engineer and Data Scientist programming mainly in Python. - Can do small and big projects with Data Analysis and Visualization, Web Crawling, REST APIs, Web Development, Cryptocurrencies and more advanced Machine Learning (tabular data classification/regression, Natural Language Processing, Computer Vision, etc.).
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Blockchain
    Data Visualization
    Unity
    RESTful API
    Web Crawling
    Jupyter Notebook
    SQL
    Flask
    Machine Learning
    Python
    Data Science
    PyTorch
    Computer Vision
    Java
  • $60 hourly
    I’m a Solutions Architect with a strong developer background. I started as a full-stack developer and later focused on front-end development, where I have proven my skills as a lead developer. I have a strong understanding of UX and product design, which allows me to balance technical skills with user-focused solutions. I’m a communicative team player who values simple workflows and well-thought-out designs. I enjoy working in international environments and collaborating with diverse teams to create impactful products. I’m seen as helpful and the gotoperson.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    IT Consultation
    Script
    Scripting
    Web Application
    NestJS
    Node.js
    Solution Architecture
    GitHub
    TypeScript
    React
    Angular
  • $37 hourly
    As a seasoned Web Architecture Designer and AI Specialist, my career has been marked by a deep engagement with the forefront of artificial intelligence and IoT technologies. My journey in tech spans a wide array of expertise, starting from the foundations of building scalable software with Python, Django/REST, Flask, FastAPI, and a suite of databases like PostgreSQL, MySQL, and MongoDB, to more advanced realms like ElasticSearch, AWS, serverless architectures, and AWS Lambda. In the rapidly evolving landscape of AI, my focus has been on integrating and leveraging the capabilities of advanced language models, particularly in the domain of natural language understanding and generation. My experience includes working with state-of-the-art models like OpenAI's GPT-4, which has enabled me to design intelligent, context-aware applications with sophisticated language processing abilities. This AI-centric approach has been instrumental in developing solutions that are not only efficient but also highly intuitive and user-friendly. My IoT expertise is grounded in hands-on experience with a variety of protocols and technologies, including Atlas Scientific probes/sensors, Z-Wave, Thingsboard, Thingsnetwork, and LoRaWAN, empowering me to architect interconnected systems that are both smart and responsive. This has involved the integration of AI and IoT to create systems that are not only automated but also intelligent, capable of making decisions and learning from interactions. In a leadership capacity, I have steered teams of developers towards the successful implementation of complex AI-driven and IoT-integrated projects. My role has been pivotal in fostering innovation, ensuring the alignment of technical solutions with business goals, and mentoring teams to excel in a highly dynamic and technically challenging environment. As a full-stack developer, my skill set includes proficiency in front-end technologies like ReactJS, VueJS, ES6/7, Webpack, Redux, and TypeScript. This comprehensive understanding of both front-end and back-end technologies enables me to oversee the entire spectrum of web development, ensuring cohesive and seamless user experiences. I am passionate about the potential of AI to revolutionize the way we interact with technology and am committed to pushing the boundaries of what's possible in creating intelligent, adaptive, and highly effective web solutions.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Azure OpenAI Service
    Data Mining
    Python Numpy FastAI
    Web Crawling
    Vue.js
    Django
    React
    HTML5
    SQL
    TypeScript
    Python
    Amazon Web Services
  • $37 hourly
    My Area of Expertise: ► Game Design and Development ► RPG /MMORPG Game Development ► NFT Game Development ► Metaverse Land creating and game development ► Opensea NFT games ► Webgl Games ► Webgl Metamask Games (Solana, Polygon (MATIC), ETH) ► Blockchain Game Development ► Game Design Document and Game Plan Document ► Agile Game Development ► Web3 game Development ► DeFi Game Development
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Rust
    WebGL
    Three.js
    Solidity
    NFT
    Blockchain
    Babylon.js
    3D Rendering
    Blockchain Architecture
    3D Animation
    web3.js
    Unity
  • $10 hourly
    Full-Stack developer - Notesco IronFX August 2021 - Present * Implementationofthenewfunctionality * PHP-7.2 * SupraFramework * PostgreSQL * Kafka * SugarCRM * Gitflow * WorkthroughJira,loggingtime * Writingparsersofvaryingcomplexity * Providetechnicalsupportforproductionsystems * GoodworkingknowledgeofLinuxsystems * CreatingHTTPAPIsontopofSugar'sSOAPbindings * Integrationandworkwiththefollowingpaymentproviders(alipay, astropay, cup, fasapay, netteler, tokenio and many others). * CreationandworkwithDepositandWithdrawal. * WorkingwithFinancialTechnologies Don State Technical University speciality - software engineering 2014 - 2018 г. Faculty - informatics and computing technology * Javascript/es6 * TypeScript * Html, scss, css. * Git / bitbucket * Bootstrap, jquery * Angular 9,12. * Capacitor 3, Cordova * Understanding REST API concepts * Understanding principles of HTTP protocol * Understanding principles of validation (XML/ XSD,Json/JSON Schema)
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Website
    Node.js
    Angular
  • $50 hourly
    ❤Hi, I love hard tasks and a clear approach to the project, which is why I decided to become a full-stack developer, as I get experience both with the backend and the frontend at the same time. As a result, I have experience as a professional full-stack developer who is thoroughly familiar with Node.js, React, Next.js, Nest.js ✔️I'm skilled in React.js, Next.js, Redux, TypeScript, all kinds of UI development including Bootstrap/Material-U, Rest-full API, GraphQL, Charts, 3D visualization, Third-party APIs (like Stripe, Twillio, Google Maps, etc) ✔️ I'm experienced with Mongoose ODM library to work with MongoDB, also worked with SQL, have experience in writing aggregate functions in both databases. Experienced with Node.js, Nest.js and Express, including the following libraries: JWT, FS, Nodemailer, Socket.IO, Mongoose, Sequelize, cors, ets I have experience with the following industries: 🚚 Transport and Logistics ✈️ Travel industry 🌾 Agricultural industry 👩‍⚕️ Healthcare 👩‍⚕️ eCommerce 👩‍⚕️ Civil Defense 👩‍⚕️ Emergency Services ➡️ Frontend Skills: Over the course of my career, I have developed proficiency in a range of frontend technologies. I am well-versed in React.js, leveraging its capabilities to create dynamic and responsive user interfaces. My experience extends to using Next.js, where I've applied its features to enhance the performance and scalability of web applications. Additionally, my familiarity with TypeScript has allowed me to write more maintainable and robust code. ➖ Adept with Redux, I've effectively managed state in complex applications, ensuring smooth user interactions. My understanding of GraphQL has enabled me to design efficient APIs, enhancing data retrieval and manipulation. ➖ In terms of styling and design, I am skilled in HTML5, CSS3, SCSS, Bootstrap, and Material-UI. I use Webpack to bundle and optimize my frontend assets. ➡️Backend Skills: On the backend, I am skilled in Node.js, employing it to build scalable and efficient server-side applications. I am familiar with MongoDB, utilizing its NoSQL database capabilities for flexible and dynamic data storage. Proficient in SQL, I can manage relational databases to ensure data integrity. ➖ Using Nest.js, I develop high-quality server-side applications with efficient architecture and fast API routing. With the help of TypeScript and detailed Nest.js documentation, I ensure high readability and support of the code. I use additional Nest.js modules for easy integration with databases and other services, making development more efficient and easily maintainable. ➖ Competent in Express, I've built RESTful APIs that seamlessly integrate with frontend applications. My proficiency in JWT ensures secure authentication and authorization mechanisms. I have experience with Socket.IO, enabling real-time communication in applications. ➖ I am familiar with CORS and have successfully implemented it to handle cross-origin resource sharing. Additionally, I am competent in PostgreSQL, leveraging its features for robust data management. My knowledge extends to Amazon Web Services (DynamoDB, S3, EC2), providing scalable and reliable cloud solutions. ➡️Mobile Development: I bring expertise in React Native for cross-platform mobile development, catering to both Android and iOS platforms. My familiarity with Expo and React Native CLI facilitates efficient development workflows. I have experience with App Center, Firebase Distribution, and TestFlight for streamlined app deployment and testing. ➡️Other Skills: My diverse skill set includes expertise in integrating location-based services with Google Maps and MapBox. I've integrated communication services using Twilio and implemented real-time communication through WebRTC. Additionally, I have experience with email services like SendGrid. I use Express.js to develop server-side logic and create APIs in Web Development projects. On the client side, I use frameworks and libraries to create dynamic and responsive interfaces. I also optimize and bandwidth resources to improve performance. ➡️In summary, my experience spans a comprehensive set of frontend and backend technologies, mobile development, and integration of various services, making me a well-rounded developer capable of delivering end-to-end solutions. Keywords🗝 React.js, Next.js, Redux, TypeScript, UI development, Bootstrap/Material-U, Rest-full API, GraphQL, Charts, 3D visualization, Third-party APIs (like Stripe, Twillio, Google Maps, etc) Mongoose ODM library, MongoDB, SQL, Node.js, Nest.js Express, JWT, FS, Nodemailer, Socket.IO, Mongoose, Sequelize, cors, ets
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Supabase
    Front-End Development
    HTML
    CSS
    TypeScript
    Full-Stack Development
    NestJS
    Tailwind CSS
    ExpressJS
    MongoDB
    Node.js
    Next.js
    Python
    React
  • $40 hourly
    I am a Ruby Software Engineer with 4 years of experience at an international e-commerce company. I specialize in developing various Ruby tools and scripts to automate tasks, perform testing, and parse data. algorithms and data structures. I have a strong background in developing web applications using popular instruments such as Ruby on Rails and React. Additionally, I am adept at managing and using large SQL databases and have extensive experience with DBMS such as MySQL, ClickHouse, MongoDB.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    SQL
    MySQL
    Bootstrap
    React
    Ruby on Rails
    Ruby
    Scripting
    Web Development
  • $30 hourly
    I’ve been involved in commercial software development for the last 9 years working with a wide range of technologies. I have experience with Blockchain development and Web back-end, Front-end, Mobile, Desktop development, and other modern technologies. Also, I am very familiar with PHP, Node.js, Python, Go, C/C#, Javascript, Dart, Ruby, Swift, Objective C, Typescript, Solidity, Rust, and other languages. Also, I have worked a lot in distributed teams from the USA, Canada, Russia, and Ukraine. I have excellent experience in web designing, web programming, mobile, and desktop development, and almost all of my products were highly praised by lots of clients. Also, I have excellent communication skills and full track development experience. My skills are as follows: Blockchain Development - Smart Contracts by Solidity/Rust on BSC, Ethereum, Solana, Polygon, etc... - for swap web services for example Pancakeswap and Uniswap, etc... - building NFT marketplace Web Backend -Django -Flask -ASP.NET -Node JS -Laravel -WordPress Web Frontend -React JS -Vue JS -Angular JS -Hugo -Next JS -Three JS -JSP -Html, CSS -JQuery -Html5 Mobile Development - Social App & Hybrid App - Online buy/sell Marketing/Shopping business App - Online Chatting/Messaging App - GoogleMap/GPS App - Booking App - Video Streaming App - Spy App - ObjectiveC, Swift, XCode, Java, Cocos2D, Box2D, Unity3D, Cocos2D-X - Hybrid Development : React Native, Flutter, IONIC and etc Could Services - Aws - Azure - Google Clound Search Engine -ElasticSearch -Solr Database -MySql -MSSql -PostgreSql -NoSql -MongoDB -AWS DynamoDB Based on my experience, I have realized that Client Satisfaction and Communication are the most important factors for project success so it is my main concern in every project I have. Thanks for reading. Best Regards
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Solidity
    React
    Node.js
    Smart Contract
    Angular
    Laravel
    Vue.js
    Blockchain
    WordPress
    Rust
    CSS
    PHP
    HTML
    TypeScript
  • $30 hourly
    Welcome to visit my profile! I am a senior fullstack developer with 8 years of experience in the field of online business development. Highly creative and driven by product excellence, I'm all about making things that are awesome, meaningful and intuitive. A strong communicator with the ability to convey ideas clearly with an emphasis on client satisfaction. My Strengths: ✔️ PHP frameworks: Laravel, CodeIgniter, Yii, Wordpress, Shopify ✔️ Javascript frameworks: Node.js/Express.js/Sales.js, React.js/Redux/Next.js, AngularJS, Vue.js/Nuxt.js, Ionic ✔️ ERC20-23, ERC-721, ERC-1155, Solidity, Smart Contract, Web3, Truffle ✔️ Database: MySQL, MSSQL, Oracle, PostgreSQL, SQList, MongoDB ✔️ Web scrapping using Python, PHP and Node.js ✔️ Perfect website responsive ✔️ Very high quality clean code for high-paced businesses. ✔️ Superb client service and communication skills. ✔️ A full-time developer for my clients. ✔️ Highly focused and quality driven As a senior developer, I always DO MY BEST for clients and try to keep the good LONG-TERM relationships. Thanks.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    ExpressJS
    Next.js
    Node.js
    React
    Vue.js
    Nuxt.js
    ANGLE
    PHP
    TypeScript
    Laravel
  • $15 hourly
    I'm an IT student trying to gain experience and make my skills useful. I actively look for new challenges which allow me to learn new things.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Microsoft Power BI
    Web Development
    Microsoft Excel
    Copywriting
    Python
    HTML
    WordPress
    Information Technology
  • $20 hourly
    Junior Vue.js and Laravel developer with a passion for building dynamic and responsive web applications.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    CSS
    PHP
    Laravel
    Vue.js
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