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Hire the best JavaScript Developers in Krakow, PL

Check out JavaScript Developers in Krakow, PL with the skills you need for your next job.
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Clients rate JavaScript developers
Rating is 4.8 out of 5.
4.8/5
based on 608 client reviews
  • $35 hourly

    • 5.0/5
    • (19 jobs)
    🏆 Senior Full-Stack developer. Worked with IMAX. 🌟 Only 5-star verified reviews. Hello, I'm Stepan, a Senior Full-Stack developer. With over 6 years of experience in the web and mobile development industry, I have personally led 30+ successful projects, delivering exceptional results for my clients. What clients say about me: 🌟 "Stepan was great. He worked on the form in a timely manner, and was very patient when I couldn't get back to him quickly. The communication was great, his work is excellent, and I will most definitely work with him in the future again." 🌟 "Wonderful person. focused and dedicated to tasks." 🌟 "Stepan is very responsible developer. Not only he did the job before the deadline, he also did even more work to simplify the upcoming app integrations, thank you. Highly recommended!" So far I’ve: - Worked with clients in a wide diversity of domains: healthcare, catering delivery, travel agency services, education, sales and marketing, vehicles, metals & mining. - Collaborated with customers 🌏 worldwide: Europe, (United Kingdom, Germany, Belgium, Croatia, Slovakia, Estonia, France, Norway), USA, Australia. - Worked with inspired 🚀startups & enterprise companies My services: - Develop Website - Build Mobile Application - MVP development - Build Marketplace - Develop Chrome extension - Hybrid Development - Build Prototype Here are my core skills: 🎯 Frontend: - React - TypeScript / JavaScript - Next.js / Gatsby.js / SPA - Web3.js - REST / GraphQL - Cypress.io Backend: - Express.js / Nest.js - AWS Serverless - MongoDB / DynamoDB - MySQL, PostgreSQL - Firebase Mobile development: - React Native - Flutter - Firebase Infrastructure: - AWS - GCP - Terraform - Docker - CI/CD Web3: - Truffle - Web3.js - Solidity VR/AR: -Unity Reach out to me today, and let's establish a long-lasting and fruitful collaboration. 🤝 Don't hesitate to get in touch right away! ✉️ Keywords to find me: Mobile App Development, Android, Android App Development, Dart, Expo.io, Firebase, Firetime Realtime Database, Flutter, FlutterFlow, Hybrid App Development, In-app Purchases, iOS, iOS Development, Java, Kotlin, Native App Development, Push Notifications, React Native, Swift, User Authentication, UX Design, Node.js.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Tailwind CSS
    API
    Redux
    Web Application
    HTML5
    Web Development
    HTML
    CSS
    Mobile App
    React Native
    TypeScript
    Node.js
    Next.js
    React
  • $50 hourly

    • 5.0/5
    • (12 jobs)
    🌟 Ready to Get Started? Unlock the potential of No-Code and Low-Code tools with my expert guidance. Whether you are a startup looking to build an MVP or a business aiming to streamline operations, I have you covered. Don't let coding challenges slow you down. Reach out to me today, and together, we'll make your app ideas come to life. 🛠️ My Expertise With extensive experience in No-Code and Low-Code tools, I specialize in crafting a wide range of applications. These range from internal tools that streamline business processes to robust MVPs that can attract potential investors for your startup. My key skills include: - WeWeb - Xano - Supabase - Airtable - Fastgen - PostgreSQL - n8n 💬 Client-Centric Approach I take pride in my client-centric approach, placing your success at the forefront of my service. I am committed to: 🤝 Collaborative Efforts: I closely collaborate with you to understand your unique goals and requirements, ensuring that the final product surpasses your expectations. 📈 Scalability: I design solutions with scalability in mind, ensuring that your app can grow seamlessly alongside your business. 📣 Ongoing Support: My services extend beyond project completion. I am here to provide continuous support and maintenance as required.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    API
    Figma
    Python
    PostgreSQL
    Supabase
    WeWeb
  • $39 hourly

    • 5.0/5
    • (9 jobs)
    🚀 Why Me ✅ 15+ years delivering scalable SaaS solutions, 10+ projects done ✅ Led development of complex B2B/SaaS platforms ✅ Success-Oriented: My goal is to make your project a success, on time and on budget. ✅ Transparent Communication: I communicate the whole process in detail, ensuring you’re informed every step of the way. ✅ Comprehensive Documentation: Detailed documentation is provided for all projects. ✅ Quality Assurance: I deliver clean code, automated tests, and a performant codebase, with a focus on software debugging and troubleshoot Programming is my passion, and I love turning ideas into reality through code. After years of working as a web developer, transitioning into building my own IT agency was a natural progression. I am excited to bring your projects into our development pipeline 🤩. 🌐 Let’s Work Together At Laspra Soft, we tackle complex projects with ease, delivering scalable and maintainable solutions. Our expertise in both modern frameworks and legacy systems allows us to handle a wide range of projects, from greenfield developments to system modernizations. Whether you need a solo developer or a full team, Laspra Soft is equipped to bring your vision to life. We are committed to delivering projects that not only meet but exceed your expectations. Let’s discuss how we can drive your project to success! Best Regards, Maks Pustynnikov Founder, Laspra Soft More boring details: 💼 Core Competencies ✅ Full-Stack Development: Expertise in both front-end development and back-end development, using technologies like JavaScript, TypeScript, Python, PHP, Symfony, Laravel. ✅ API Development and Integration: Proficient in RESTful API, GraphQL, API development, and API integration, including third-party services like Stripe API, Twilio API. ✅ E-commerce and Marketplace Solutions: Experience with Ecommerce websites using WooCommerce, Shopify, Magento, WordPress and Drupal ✅ Database Design and Optimization: Expertise in MySQL, MariaDB, PostgreSQL, MongoDB, SQLite, Microsoft SQL Server. ✅ DevOps and Cloud Infrastructure: Proficient with Docker, CI/CD, Ansible, AWS (including AWS Lambda and AWS Amplify), Google Cloud Platform, NGINX, Cloudflare, and Linux System Administration. ✅ Content Management Systems: Proficient in WordPress development. 🛠️ Tech Stack • Front-End: HTML, HTML5, CSS, JavaScript, TypeScript, React (including Next.js, Redux, Material UI, Tailwind CSS), Vue.js, Angular, AngularJS, jQuery, Bootstrap, Sass, Less, Responsive Design, Adaptive Web Design, UX & UI Design. • Back-End: PHP (including Laravel, Symfony, Custom PHP, PHP scripts), Node.js (with ExpressJS, NestJS) • Databases: MySQL, MariaDB, PostgreSQL, MongoDB, SQLite, Firebase, Azure Cosmos DB, Oracle Database, Microsoft SQL Server, Database Development, Database Architecture, Database Design, Database Management, Database Integration, ETL processes. • DevOps: Docker, CI/CD, Ansible, AWS, AWS Lambda, AWS Amplify, Microsoft Azure, Google Cloud Platform, NGINX, Cloudflare, Linux System Administration, GitLab, Bitbucket, Git, Jenkins, Kubernetes. • APIs and Integrations: RESTful API, GraphQL, Stripe Integration, Twilio API, OpenAI API, Instagram API, Twitter/X API, Zapier, Sendy, DocuSign. • CMS and E-commerce: WordPress, WooCommerce, Shopify, Magento, Drupal, Elementor, WPML, Wix, Webflow, Bubble.io. • AI and Machine Learning: Artificial Intelligence, Machine Learning, AI Development, AI Model Integration, Natural Language Processing, Artificial Neural Networks, AI Bots, OpenAI API, OCR Software. • Other Tools: Adobe Photoshop, Figma, Sketch, Jest, Webpack, Babel, Sass, Less, JSON, XML, YAML, Docker Compose, Terraform, Jira, Confluence, Slack, Microsoft Teams. 🏆 Industries Served ➡️ E-commerce and Marketplaces: Building scalable ecommerce websites and marketplaces with secure payment processing and payment gateway integration. ➡️ Finance and Fintech: Developing secure applications and integrating with financial APIs. ➡️ Healthcare and Telemedicine: Creating compliant solutions with a focus on data security and privacy. ➡️ Education and E-learning: Building platforms with interactive features. ➡️ Travel and Hospitality: Developing booking systems, dashboard interfaces, and customer portals. ➡️ Custom Business Solutions: Tailoring applications to meet unique business requirements, including CRM development, ERP systems, and business logic layer implementations.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Full-Stack Development
    Node.js
    Web Design
    React
    WordPress
    HTML
    CSS
    Web Development
    MySQL
    Python
    API Integration
    API
    PHP
    Symfony
  • $75 hourly

    • 5.0/5
    • (21 jobs)
    I'm a software engineering professional with over 10 years of experience in the data-processing industry. Currently, I'm helping companies of various sizes to get the best possible tracking setup regardless of their online platform. I'm experienced in: - detailed eCommerce tracking using Google Tag Manager and Google Tags - refined integrations with Ads platforms (Google Ads, Facebook/Meta) with Enhanced Conversions and Advanced Matching - handling Google Consent Mode v2 and other privacy-oriented requirements - implementing advanced server-side GTM setups, including Google Measurement Protocol and Facebook Conversions API - ensuring great page-load times with optimisation techniques and server-side tagging
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    CSS
    PHP
    MySQL
    REST API
    HTML
    Tracking Pixel
    Facebook Pixel Setup & Optimization
    Google Analytics 4
    Pixel Setup & Optimization
    Tracking Tags Installation
    Google Tag Manager
  • $40 hourly

    • 5.0/5
    • (127 jobs)
    As a proficient front-end engineer specializing in WordPress, I bring over 8 years of experience to the table, having honed my skills in HTML, CSS, and JavaScript. My expertise isn't just in coding, but in crafting bespoke solutions that optimize user experience and amplify business impact. With a portfolio of over 100 WordPress sites, my record speaks for itself. During my 8-year journey in front-end development, the past 3 years have been spent sharpening my skills within a dynamic London-based studio. In this role, I've mastered complex WordPress projects and provided elegant, user-centric web solutions to global clients. My pursuit of clean code and coherent design culminates in websites that captivate visually while delivering robust functionality. I am eager to connect and explore how my dedication to excellence, combined with a proven history of positive outcomes for clients, can take your project to new heights. Let's discuss your vision and see how we can bring it to life, crafted to the highest standards.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Bootstrap
    jQuery
    PHP
    SCSS
    CSS 3
    HTML5
    Web Development
    Responsive Design
    WordPress Theme
    Advanced Custom Fields Plugin
    PSD to WordPress
    WordPress
  • $50 hourly

    • 5.0/5
    • (136 jobs)
    AWS certified full-stack developer with extensive experience in creating scalable distributed web applications for large and small businesses. 👨‍💻 8+ years in programming 🎓 Master's degree in Computer Science 🛠️ My Expertise: - Front-End: React, JavaScript, HTML5, CSS3, jQuery, Bootstrap - Back-End: Node.js, Java, Kotlin - Databases: MongoDB, MySQL, DynamoDB - Version Control: Git - Cloud: AWS – certified developer Looking forward to connecting, Paul.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    MongoDB
    Amazon Web Services
    jQuery
    React
    AWS Lambda
    Software Development
    Kotlin
    Microservice
    Node.js
    SQL
    Java
    CSS
    HTML
    Bootstrap
  • $55 hourly

    • 4.9/5
    • (7 jobs)
    I am a Full-Stack Developer with 7+ years of experience. Experienced in FinTech + SaaS React based app/web development. Good knowledge of eCommerce CMS and understanding of integration processes. My biggest project up to date - Senior role in development of merchant mobile card terminal app (NFC) + web app for Oschadbank, ranked #2 bank in Ukraine by Forbes. ✅ Tech Stack - React - Angular - Vue.js - Bootstrap - Jamstack - Gatsby - Redux - Node.js - Codeigniter - Firebase - MongoDB - Redis - MySQL - PostgreSQL - Zapier - AWS - Google Analytics - API (integration) ✅ Mobile + Web apps - Figma to to React, HTML & Vue code - Expo - Ionic ✅ CMS+CRM - WordPress (WooCommerce, Elementor) - Laravel - Opencart - Microsoft Dynamics 365 ✅ Languages - JavaScript - TypeScript - PHP - HTML - CSS ✅ QA - Jest - Enzyme • MY TEAM • I'm a proud member of Ship One Studio. We are a powerful creative collective that produces custom visuals, providing a wide range of design, APP and WEB development services. Delivering unique user experiences is our priority. 🔹 UX / UI 🔹 2D Design & Illustration 🔹 3D Modeling 🔹 Animation 🔹 Vector Graphics 🔹 Tutorial / Explanatory Videos 🔹 Social Media Design 🔹 Presentation / Pitch Deck 🔹 Physical Package / Wrap Design 🔹 Brand Identity Development Design is value. Ship one studio dot com.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Vue.js
    App Development
    Angular
    WordPress
    Sass
    TypeScript
    CSS
    MongoDB
    React
    Node.js
    HTML
    Web Application
  • $45 hourly

    • 5.0/5
    • (4 jobs)
    Hi, my name is Przemek. (You would pronounce it like "pshemek") I live in Kraków, Poland. While I’m loving to run through the hilly landscapes, the more interesting for you is that I’m building cool things with WordPress & React.js on daily basis. My Upwork profile is relatively new but I'm in business since 13 years. What I deliver? Classic WordPress: I convert designs to dedicated themes or implement child themes while extending WordPress core by building custom plugins. Headless WordPress: I may harness core or ACF-powered WordPress as a content management system for different decoupled front-end solutions using REST API or WP-GraphQL. Gutenberg Blocks: I can develop static or dynamic blocks for the editor in React and extend the core blocks or the editor itself with new capabilities required by the project. Strapi CMS: This rapidly growing Node.js-based system helps me build easily manageable content APIs for websites and web applications. Next.js: The most advanced framework built upon React.js for API-driven front-end development allows me to create dynamic websites or apps of varying complexity. Gatsby.js: Another well-established framework admired in the headless WordPress community is perfect for me to build high-performance static websites. Whether you are curious about my work or you have an interesting project I could help you with, let's connect!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Gutenberg Editor
    Tailwind CSS
    React
    Gatsby.js
    RESTful API
    Next.js
    Web Development
    Strapi
    PHP
    WordPress Theme
    WordPress
    GraphQL
    WordPress Plugin
    WooCommerce
  • $15 hourly

    • 5.0/5
    • (3 jobs)
    Hi 👋, Are you a startup founder looking to bring your vision to life with an MVP? Our team specializes in turning your ideas into reality. We are experienced in Full-Stack Development, No-Code Development, and creating MVPs. Our services include: ✅ Full-Stack Development ✅ MVP Development ✅ Blockchain Development ✅ Process Automation ✅ Business Intelligence We are skilled in: ✅ Languages: Python, Javascript, React, Java, GoLang, SQL, PHP, C++, Rust, Solidity ✅ Databases: MySQL, PostgreSQL, MongoDB ✅ No-Code Tools: Bubble.io, Webflow, FlutterFlow ✅ Blockchain: Ethereum, Solana, NFTs Our approach to deliver tailored solutions: ✅ Discovery Call (Free 30 minutes): To kick things off, we propose a free 30-minute Discovery Call. This allows us to delve into your pain points, challenges, and goals. We believe in getting to know your specific requirements to provide the most effective and personalized solution. ✅ Customized Proposal Development: Following the Discovery Call, we'll diligently analyze the information gathered. Subsequently, we'll craft a customized proposal outlining our proposed solution. This will encompass a detailed breakdown of services, timelines, and costs, ensuring transparency and alignment with your objectives. ✅ Implementation: Upon your approval of the proposal, we'll swiftly move into the implementation phase. Our team of experts will work diligently to set up, duplicate, and integrate the necessary systems, ensuring a seamless transition that aligns with your existing processes. ✅ Regular Follow-ups and Client Satisfaction: Our commitment extends beyond implementation. We understand the importance of ongoing support. Therefore, we conduct regular follow-ups to gather feedback, address any post-implementation issues, and ensure that the automated processes are meeting your expectations. Your satisfaction is our priority.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    SQL
    Database
    Business Intelligence
    Data Science
    Mobile App Development
    REST API
    Back-End Development
    No-Code Development
    Web Development
    Full-Stack Development
    Bubble.io
    Python
    Webflow
    API Integration
  • $30 hourly

    • 4.9/5
    • (17 jobs)
    Greetings! I am Yigit and I am a full-stack developer with a love of programming and a passion for building websites/web apps. What sets me apart from other developers is my ability to collaborate with my clients to understand their unique needs and deliver web apps/websites that are fully functional and visually appealing/user-friendly. I specialize in creating complex websites and web applications using modern technology stacks like React, Vue, Angular, Node, Django, Shopify and Laravel. Whether you need a new web application built from scratch or an existing one updated, I am confident that I have the skills and expertise to deliver outstanding results. Let's manage your projects together!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Apache Kafka
    PostgreSQL
    Vue.js
    Node.js
    Web Development
    HTML
    Angular
    CSS
    Spring Boot
    Laravel
    Django
    React
    MySQL
    Java
  • $45 hourly

    • 4.9/5
    • (9 jobs)
    With over 10 years of experience as a senior software developer, I have honed my skills in .NET, ASP.NET, C#, Node.js, JavaScript, TypeScript, and modern front-end frameworks such as React, Angular, and Vue. My extensive background in software development and engineering positions me perfectly to deliver high-quality, AI-enabled solutions for your project. Here’s a brief overview of my expertise: 🔸C# Programming: Proficient in C# with extensive knowledge in object-oriented programming, design patterns, and software architecture. I have developed numerous applications and tools that leverage C# for maximum efficiency and performance. 🔸.NET & ASP.NET Development: I have a decade-long experience in building robust, scalable, and high-performance applications using the .NET framework. My expertise includes developing web applications, APIs, and enterprise solutions with ASP.NET Core. 🔸JavaScript, TypeScript & Node.js: Skilled in server-side development with Node.js, creating fast and reliable back-end services with Koa, Express, Nest.js, and Hapi. Additionally, my JavaScript expertise spans both front-end and back-end development, ensuring seamless integration and performance. 🔸Front-end Frameworks: Experienced in building dynamic and responsive user interfaces using React, Angular, and Vue, along with HTML, CSS, LESS, SASS, Webpack, Next.js, Nuxt.js, and Gatsby. My work involves creating reusable components, managing state efficiently, and ensuring a smooth user experience across various devices and platforms. Why Choose Me: 🔸Proven Track Record: A history of delivering high-quality projects on time and within budget. 🔸Collaborative Approach: I thrive in team environments, effectively communicating and collaborating with cross-functional teams to achieve project goals. 🔸Continuous Learning: Committed to staying updated with the latest industry trends and technologies to provide innovative solutions. I am enthusiastic about the opportunity to help you achieve your goals with my technical expertise and dedication. I am confident that my skills and experience will be key to the success of your project. Reach out to secure a reliable development partner.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Amazon Web Services
    Microsoft Azure
    Microsoft SQL Server
    Vue.js
    AngularJS
    Angular
    React
    Node.js
    ASP.NET Core
    ASP.NET
    .NET Framework
    C#
  • $35 hourly

    • 5.0/5
    • (9 jobs)
    👋 Hi and welcome to my profile. This is where we start working together towards achieving your goals. 🦸‍♂️ Let me introduce myself. I am Eugene, a Expert Full-Stack Developer with a Master's degree in Computer Science. I’ve delivered over 70 projects over the course of my 12 years career. The difference in working with me is that I'll offer you not just professional outcomes using modern and robust tools, but also not that common possibility to work hand in hand. Providing some insights and improvements to make your product secure, scalable, and fast. ❇️ Here are some of the testimonials that I received for my job and of which I am proud: 👍 “This experience has opened our eyes to the art of the possible. Working with Eugene and the team has been a fantastic experience. We've achieved more in a couple of months that we did in the proceeding 6 using our own sourced freelancers. We are consistently blown away by the quality of the work and the speed at which it is delivered”. Linford Bacon, CEO & Co-Founder of Ngenius ai. 👍 “Eugene was transparent with his progress and effectively communicated tasks and responsibilities. Although the design process took longer than expected, the finished product met expectations. Customers can expect professional, detailed work.” Dave Chiu, CEO of Teafolks. 👍 “Eugene's involvement has facilitated an increased ability to manage several internal projects simultaneously. Efficient, flexible, and responsive with a practical approach, Eugene integrated seamlessly with the in-house team.” Ryan Fyfe, CEO of Humanity com 👍 “Eugene intensively developed a website for an evidence-based social platform. He was easy to negotiate, worked fast, and produced high-quality results.” Owner, Evidence-Based Social Platform ❇️ Here are some facts to support your decision: 📌 32 completed projects 📌 14 years of experience 📌 Fluent English 📌 Master of Computer Science 📌 Long-term engagements 📌 Proficiency in Backend (Node.js - Nest, Koa, Express) 📌 Proficiency in Frontend (React, Vue, Angular) 📌 Proficiency in Mobile Development (React Native, Flutter) 📌 Proficiency in DevOps (AWS, Cloudflare, Gitlab CI, Docker, Nginx) 📌 Love for people, honesty, collaborative mood, sense of humor ❇️ I love to work with complex systems in several niches: 🚚 Logistics (TMS, QMS, YMS, Digital Dispatcher, Supply Chain) 🌎 Online immigration law services 📈 CRM & ERP systems 🛒 Platforms for marketplaces that work as “matching systems” (e.g. Uber/Airbnb) Wow, you read that far! Here’s a bottom line then: I love to build solid web- and mobile apps for startups as well as complex ERP services for industrial facilities. Do you want to work with a person who'll be working with you giving fully himself to make your project as solid as it should be? ❇️ Let’s talk!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Location-Based Service
    Mobile App Development
    iOS
    Android
    Web Design
    PostgreSQL
    NestJS
    ExpressJS
    Node.js
    Vue.js
    React Native
    React
    TypeScript
    Web Development
  • $30 hourly

    • 4.9/5
    • (18 jobs)
    🚀Expert in SaaS, Healthcare, and Custom Business Solutions 🌟 Delivering Tailored Digital Solutions for Diverse Business Needs As a seasoned Full-Stack Developer and Business Applications Specialist, I bring a unique blend of expertise in developing SaaS platforms, custom business solutions, and specialized healthcare applications. My proficiency in a diverse set of technologies, including Laravel, Yii2, React, Vue.js, and AWS, enables me to craft solutions that are not only innovative but also precisely tailored to meet the specific needs of various business domains. Expertise in Comprehensive Solution Development: 🏥 Healthcare Applications: Skilled in creating HIPAA-compliant EHR/EMR systems, ensuring data security and compliance in healthcare solutions. 💼 Custom Business Solutions: Experienced in developing CRM, ERP, and custom portal solutions that streamline business processes and enhance operational efficiency. ☁️ SaaS Platforms: Proficient in building scalable and robust SaaS applications, catering to a wide range of business requirements. Technical Proficiency: Core Technologies: Expertise in Laravel, Yii2, React, Vue.js, and Node.js. Cloud and Server Management: Skilled in AWS and Linux server administration for secure and scalable cloud solutions. Payment and API Integration: Extensive experience with payment gateways like Stripe, PayPal, and Amazon Payments, and API integrations including OpenAI. What I Bring to Your Project: 🌐 Tailored Web Development: Focused on developing custom web solutions that align with your business goals and user needs. 🤖 Innovative Integration: Leveraging the latest technologies and APIs to enhance the functionality and efficiency of your applications. 📈 User-Centric Design: Committed to creating efficient, user-friendly, and high-quality solutions that drive business growth and customer satisfaction. 📣 Ready to Transform Your Business? If you're seeking a developer who can navigate the complexities of both full-stack development and specialized business application creation, let's connect. Together, we can develop innovative solutions that propel your business forward in the digital landscape. Best regards, Izmet
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Web Development
    Node.js
    GPT-4
    AI Content Creation
    AI Model Integration
    Laravel
    ChatGPT
    GPT-3
    React
    Web Design
    Google Maps API
    Amazon EC2
    PHP
  • $60 hourly

    • 4.7/5
    • (7 jobs)
    If you are looking for someone to design, code and launch your web and mobile app from the ground up, I'll be happy to help. Over the last 5 years, I: - Led the development of one of the biggest Vegan supermarkets in the UK, The Vegan Kind - I built a subscription-based food delivery service, Vegan Food Club - I helped build two React Native Apps, one of them rated 4.8 stars on the App Store ("Holder") My skills include, but are not limited to: ✅ Managing small development teams ✅ Frontend development in React ✅ Mobile development in React Native ✅ UI Design in Figma All Technologies I've more than 4 years of experience with: - React, React Native, Firebase, Shopify Plus, Recharge, Tailwind, Typescript Let's talk!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Sketch
    Vuex
    UI/UX Prototyping
    Front-End Development
    TypeScript
    CSS
    Vue.js
    HTML
    Node.js
  • $40 hourly

    • 5.0/5
    • (7 jobs)
    More than 7 years of experience in website applications, A person with a mixed type of thinking, inquisitive, flexible, devoted, enthusiastic and stress-resistant, responsible for taken obligations and persevering in achievement of setting tasks, capable to analyze great volume of information. I get on well with people and keep in touch with them quickly. Front-end experience: - Angular (All versions) - React - Knockout - Backbone - Sass - Less - CSS3 - HTML5 - JQuery - JavaScript - TypeScript - Responsive layouts - Karma, Jasmine - Cypress.io - GraphQl - Web scraping Back-end experience: - Databases: MongoDB, Firebase - Business logic, Web page rendering, RESTful APIs: Node.js
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Jest
    Selenium WebDriver
    Firebase
    jQuery
    ExpressJS
    TypeScript
    HTML5
    AngularJS
    Kendo UI
    Node.js
    React
    MongoDB
    CSS 3
  • $40 hourly

    • 4.8/5
    • (6 jobs)
    I am a Web Developer with +8 years of experience. GitHub: github.com/makamekm Main Languages: JavaScript, TypeScript, Java, C# Main Platforms: Web, NodeJS, Java, .NET, Desktop & Mobile Additional Platform: Unity, Godot Additional Languages: Python, PHP, GoLang --- I am a hands-on, highly competent software engineer with 8 years experience designing, programming and testing software across a variety of platforms. I have worked on numerous projects from concept to completion. A specialist in NodeJS, ReactJS, Angular. I have a lot of stuff in C# with .NET, Java, NodeJS, TypeScript, and so on. I also worked with PHP for several years. I take pride in coding to consistently high standards and regularly refresh my skills to ensure I keep up with ongoing developments. My main speciality is Fullstack Software Developer. I prefer to work with interfaces & microservices and make desktop applications. I know how to use animations and simplicity in UX. I can configure DevOps tools and I know how to build any modern pipeline for any application or microservices. --- Skills Summary: - JS, TypeScript, ReactJS, Angular, Meteor, ExtJS, jQuery, Vanilla JS, RobotFramework, Electron - NodeJS, Express, TypeORM, Bull, many other NPM packages - C++, C#, .NET, CORE, Visual Studio, RabbitMQ, Unit Testing - PHP, Composer - CSS, Less, Scss, Sass, Bootstrap - REST, GraphQL, RegExp - Swift, iOS, Xcode, Cocos2d, React Native - Visual Studio, Eclipse - Upsource, GitHub, GitLab - Unix / Linux, MacOS, Windows - MySQL, MSSQL, Redis, MongoDB - Docker, Kubernetes - Jest, Karma, Jasmine, TSLint, ESLint, Sonar (SonarQube), Selenium - TeamCity, Jenkins, Drone.io, GitLab.ci - Big Data & Cluster Processing with NodeJS - Hadoop & Spark with Java
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Node.js
    TypeScript
    React
    C#
    Vue.js
    Java
    Angular
  • $70 hourly

    • 5.0/5
    • (16 jobs)
    Professional JavaScript Developer helps you to implement your ideas into life using React. I have 10 years of experience in web development and 5 years in management. I provide you not only a perfect quality of the product but also good communication and your idea understanding. I am working only jobs with an hourly payment type!
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Git
    Next.js
    webpack
    HTML5
    Web Application
    HTML
    TypeScript
    Redux
    React
    CSS 3
    CSS
    RESTful Architecture
  • $52 hourly

    • 5.0/5
    • (8 jobs)
    I'm experienced in: - React; - Redux; - Typescript; - JavaScript; - PSD/Sketch/Invision/Zeplin/Figma to html; - responsive and adaptive web-design; - cross-browser compatibility; - SASS, LESS; - Bootstrap; - Git; - Pixel pefrect styling. Looking forward to working with you.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Redux
    TypeScript
    Next.js
    SCSS
    Git
    CSS 3
    React
    HTML5
    jQuery
  • $35 hourly

    • 5.0/5
    • (8 jobs)
    I am responsible for writing REST back-end service from scratch alone using Java 11, Spring Boot 2.2.0, configuring deployment process by writing multi-stage build dockerfile and makefile for terraform, scope of service requests required me to write some sort of a framework to get rid of boilerplate code. Also I am involved into front-end part for the other service, which require me to write components using react hooks, consuming API using Axios and manage state using redux hooks.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    JUnit
    MySQL
    PostgreSQL
    Spring Framework
    Mockito
    React
    Java
    Spring Boot
    Java Servlet API
    Spring MVC
  • $32 hourly

    • 5.0/5
    • (5 jobs)
    I'm highly motivated full-stack developer with 7+ years of experience in iOS and MacOS development👨🏼‍💻 I'm top in Mobile App Development, have deep knowledge of Swift and Objective-C libraries, Flutter. Experienced in using Design patterns and object oriented methodologies to design software. I am a person who is highly interested in the project's success, that is why I keep every detail under control. While developing, always pays high attention to code styling, project and data structures to make code more readable and let applications show better performance. Good communication skills which help a lot when the time comes for discussions about project development. Among my skills: - iPhone, iPad, macOS, Phone, Tablet - JavaScript, C, C++, Swift, Objective-C, Flutter - HTML & CSS - Windows, macOS - Applescript, Cocoa, UIKit, RxSwift, StoreKit, Swift UI - REST API, GraphQL - In-App purchase and Push Notification, Ads integration - Firestore, PostgreSQL, Realm, AWS - Git - Jenkins, Fastlane - Cocoapods, Carthage - Xcode - Back-end technologies: Firebase, AWS - Software Engineering Management: Jira, Redmine While developing, I always pay high attention to code styling, project and data structures to make code more readable and let applications show better performance. I have good communication skills, which help a lot when the time comes for discussions about project development. I represent Dektry Agency ☄️ Why working with us? 📎 Individual Approach 📎 6+ years on the market 📎 High-quality and clean code 📎 Well-coordinated team of professionals 📎 Ongoing Support
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Cocoa API
    macOS
    Git
    Apple Xcode
    RxSwift
    Swift
    C
    Microsoft Windows
    iOS
    CSS 3
    C++
    RESTful Architecture
    Firebase
    Objective-C
  • $35 hourly

    • 5.0/5
    • (3 jobs)
    Experienced React Native Developer with 7 Years in Mobile App Development Hello! I'm Ivan, a dedicated React Native developer with seven years of extensive experience in mobile application development. My journey in the IT industry has equipped me with a robust skill set and a passion for creating high-quality, user-centric mobile applications. Why Choose Me? Expertise in React Native I've developed scalable and high-performance applications for various industries, including fintech, social media, health, and smart home management. My technical prowess ensures seamless integration and exceptional user experiences. Comprehensive Skill Set Proficient in React Native, Redux, TypeScript, Firebase, GraphQL, and CI/CD processes. My experience also extends to using Xcode, Android Studio, and Expo for efficient app development and deployment. Proven Track Record Successfully led projects from inception to completion, including: -Developing a smart home energy management app with LG ThinQ Energy. -Enhancing financial applications with Kotlin Multiplatform and maintaining high test coverage. -Integrating advanced features for Crumbiz to optimize global business networks. Collaboration and Leadership Skilled in working within Scrum frameworks, leading multidisciplinary teams, and ensuring high standards of code quality and performance. Advanced Technical Solutions Expertise in implementing OAuth2 for authentication, AI-driven data analysis, custom visualizations with D3.js, and feature flags for tailored user experiences. Key Projects LG ThinQ Energy: Developed a scalable application for smart home energy management, emphasizing real-time monitoring and control. Financial Application: Improved interoperability and functionality through Kotlin Multiplatform and GraphQL. Crumbiz: Enhanced professional networking capabilities with advanced React Native components and social media integration. Languages Fluent in Ukrainian and Russian, with an upper-intermediate level of English (B2) and elementary proficiency in Polish. Let's work together to bring your mobile app ideas to life with precision, efficiency, and innovation. Contact me today to discuss how I can help achieve your project's goals.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Google APIs
    Mobile App Development
    iOS
    Android
    Realm Database
    Firebase
    React Native
  • $65 hourly

    • 5.0/5
    • (2 jobs)
    I am a diligent developer with over four years of experience in web development, who transforms design concepts into user-friendly applications efficiently. I specialize in Front-End development, with my primary stack revolving around React, MobX, Tailwind CSS to craft responsive and visually appealing user interfaces, but I also possess the flexibility to contribute to Back-End projects. My core expertise is in: Front-End: • Proficient in React.js (including React Hooks), JavaScript, React Router (or custom state-based routing), Tippy.js, Popper.js, React Datepicker, react-window, react-virtualized, and react-cool-virtual. • MobX and mobx-state-tree for efficient state management. • Tailwind CSS, Windi CSS, HTML5/CSS3, SCSS, and HTML5 Canvas for crafting stunning user interfaces. • Well-versed in Webpack, Vite, Jest, Yarn/NPM, Babel, and ESLint • Proficient in building RESTful API applications While my primary focus is Front-End, I also possess versatile knowledge in Back-End technologies: • Ruby, Clojure, Java, and Kotlin • Kafka • PostgreSQL These technologies empower me to contribute to Back-End development tasks, broadening my skill set and enabling me to work on a variety of projects.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Jest
    Mobx
    Front-End Development
    Tailwind CSS
    Ruby
    Ruby on Rails
    PostgreSQL
    AJAX
    React
    CSS 3
    HTML5
    SCSS
  • $70 hourly

    • 5.0/5
    • (8 jobs)
    Welcome, I'm RPA, web scraping, automation developer and professional IT trainer. I use advanced technologies to deploy robust RPA solutions on premise or in the Cloud environment. I know C# and JavaScript programming languages. My area of specialization is automation. I develop web automation using Puppeteer and desktop automation using different RPA tools like UiPath or Blue Prism. I'm looking for long term cooperation with business partners across the globe.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Robotic Process Automation
    UiPath
    SQL Programming
    Blue Prism
    Visual Basic
    C#
  • $50 hourly

    • 5.0/5
    • (6 jobs)
    👋 Welcome to my Upwork profile! I'm Denys, a Front-End Team Lead and software engineer with 6+ years of experience. ⭐️ As an Upwork freelancer, I had the privilege of working with an enterprise company. I logged more than 2000 hours delivering a product that is currently used by 90% of its marketing department. ⭐️I also contributed to developing an HR ecosystem consisting of a mobile app, browser extension, and web app, which is used by FedEx and can be easily integrated into different HR systems of any company. This ecosystem streamlines HR processes, empowers employees with self-service features, and provides real-time analytics for HR managers. ⭐️Another exciting project I worked on was a platform that allows passwordless QR code login, which is used by leading US banks and one of the largest stock investment apps. This login system enhances security and usability by eliminating the need for passwords and enabling fast and easy authentication via smartphones. As a full-stack web engineer, I specialize in full-circle development, particularly in React.js, Next.js, and Redux. I have extensive experience with JavaScript Frameworks, jQuery, and CSS Frameworks such as Bootstrap. I'm also familiar with Backend Technologies such as Node.js, Express.js, Database Management, and AWS, and my amazing team can backup us up if you’ll such a need 🫂 I'm very passionate about web development, having worked with enterprise companies, Fortune 500 clients, medium businesses, and startups, I’m sure I can bring much value to your project. Let's collaborate and create something great together! Contact me to start your next project 🤝📲
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Mobx
    Bitbucket
    Next.js
    jQuery
    CI/CD
    React Native
    Web Development
    SaaS
    TypeScript
    HTML5
    HTML
    React
    Redux
    Front-End Development
  • $60 hourly

    • 4.8/5
    • (8 jobs)
    - 𝗨𝗽𝘄𝗼𝗿𝗸 𝗦𝗸𝗶𝗹𝗹 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 - 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 𝐨𝐧 𝐔𝐩𝐰𝐨𝐫𝐤 - 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐒𝐮𝐜𝐜𝐞𝐬𝐬 - 𝐓𝐨𝐩 𝐪𝐮𝐚𝐥𝐢𝐭𝐲 𝐨𝐟 𝐰𝐨𝐫𝐤 - 𝐅𝐮𝐥𝐥 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐥𝐢𝐟𝐞𝐜𝐲𝐜𝐥𝐞 (𝐟𝐫𝐨𝐦 𝐬𝐜𝐫𝐚𝐭𝐜𝐡 𝐭𝐨 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧) Experienced and client-oriented Team Lead with 10+ years experience and a proven track record of delivering the highest results. Expert in leading small teams to success by fostering collaboration, ensuring quality, and exceeding client expectations. Specialised in a wide array of modern technologies, I am dedicated to providing exceptional service and innovative solutions. Feel free contact with me to discuss details. 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 𝐥𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 𝐚𝐧𝐝 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: - Javascript, TypeScript - React Native - Ionic 3/5 - ReactJS - NextJs - Angular 2+ - Shopify (Shopify theme, Amazon, eBay, Etsy, Stripe, Mollie - Przelewy24, Mollie-Ideal, Shopify Payment, PayPal) - NodeJs - NuxtJS - PHP - Python - MongoDB - MySQL 𝐑𝐞𝐥𝐚𝐭𝐞𝐝 𝐭𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: - GraphQL, Apollo Client - Redux - REST API - CI/CD (Bitrise, AppCenter) - Firebase, Firebase Cloud functions, Firebase Database - HTML5, CSS3, Sass, Tailwind CSS - RxJS, - NgRx - Storybook - Ant Design
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Front-End Development
    Redux
    Web Development
    React
    Mobile App Development
    Push Notifications
    iOS
    Firebase
    Angular
    TypeScript
    React Native
    iOS Development
    Android
  • $32 hourly

    • 5.0/5
    • (4 jobs)
    I am a skilled full-stack developer with experience in Web development👨‍💻 - Strong knowledge of HTML, CSS - Expert in JavaScript and Typescript - Proficient in using React.js for frontend development - Have experience in developing AI projects - Familiar with REST API architecture - Backend development using Node.js, Express.js, Nest.js, Next.js - Experience with databases: MongoDB, SQL I'm a reliable, responsible and hard-working developer interested in personal professional growth and broadening my technical expertise. I enjoy working in a team on large scale projects and solving a wide variety of tasks related to the development of web applications. I represent Dektry Agency ☄️ Why working with us? 📎 Individual Approach 📎 6+ years on the market 📎 High-quality and clean code 📎 Well-coordinated team of professionals 📎 Ongoing Support Looking for expert developers? Let's work together! 🚀 Highlighted skills: Web development, Mobile development, Application Development, JavaScript (JS), Front-end Development, Back-end Development, React (ReactJS, React.js), React Native (ReactNative), React-Bootstrap, Node.js (Node, NodeJS), Express (Express.js, ExpressJS), TypeScript (TypeScript), Electron, MongoDB, Mongoose, SASS, Git, CSS, Geth, JS Stellar SDK, TensorFlow (JS), Pytorch, Flask, Tornado, Tesseract, Styled-components.
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    Python
    Firebase
    API Integration
    HTML
    MongoDB
    NestJS
    Sails.js
    Node.js
    React Native
    TypeScript
    Redux
    PostgreSQL
    HTML5
    CSS 3
  • $50 hourly

    • 5.0/5
    • (8 jobs)
    A front-end developer with 5+ years of experience in Agile projects (Scrum). Experience in Angular 2+ with ngrx; Experience in TypeScript and RX.js; Experience in Jest, Jasmine; Small experience in React.js + Redux
    vsuc_fltilesrefresh_TrophyIcon JavaScript
    macOS
    Microsoft Windows
    Bug Fix
    Jest
    Vue.js
    Nuxt.js
    TypeScript
    Git
    SCSS
    Angular
    CSS 3
    HTML5
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