The Best React.js Developers For Hire In Croatia

Check out React.js Developers in Croatia with the skills you need for your next job.

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$40 hourly
- 4.8/5
- (15 jobs)
10+ years of experience working with: - HTML | CSS | Bootstrap | Material UI | Element Plus | TailwindCSS - Angular | RxJS | NgRx | VueJS | React | Node | Express | GraphQL | JavaScript | jQuery | WordPress - MEAN / MEVN / MERN - ChartJS | D3 | ThreeJS | Styleguides I am Senior Frontend Developer and UI/UX designer with more than 10 years of experience working on variety of projects differing in size, business needs, scope and structure and work management implemented in achieving desired goals.

React.js
Sitecore
Wireframing
User Experience Design
Style Guide
User Interface Design
RESTful API
TypeScript
WordPress
CSS
CSS 3
Angular
Node.js
jQuery
React
Front-End Development
Vue.js
Bootstrap
HTML5
JavaScript
$40 hourly
- 5.0/5
- (9 jobs)
As a software engineer with over 10 years of experience, I have developed expertise in designing and implementing enterprise-grade software solutions. My experience spans a variety of industries and sectors, including teleco, finance, and government. One of my key strengths is my ability to understand complex business requirements and translate them into effective technical solutions. As a solution architect, I have been responsible for designing software architectures, selecting appropriate technologies and frameworks, and guiding development teams in implementing these architectures. I have also worked as a consultant, advising clients on best practices and helping them implement software solutions that meet their business needs. Throughout my career, I have gained expertise in a range of technologies, including Java, Spring, Hibernate, Quarkus. I am familiar with Agile and DevOps methodologies, and I have experience working with tools such as Git, Jenkins, Docker, and Kubernetes. In addition to my technical expertise, I am a strong communicator and team player. I enjoy collaborating with colleagues, sharing knowledge, and mentoring junior developers. I am comfortable working in both remote and on-site environments, and I thrive in fast-paced, dynamic work environments. Overall, I am a results-oriented software engineer with a proven track record of delivering high-quality software solutions that meet business needs. I am passionate about software development and committed to staying up-to-date with the latest technologies and industry trends.

React.js
Software Design
Scrum
Agile Software Development
React
Spring Boot
Java
Spring Framework
PostgreSQL
$40 hourly
- 4.9/5
- (20 jobs)
My top skills are Gatsby, React, Node.js, Django, Vue, Quasar, React Native, and AWS. Worked on multiple web projects where my role was full-stack developer and quite often I would take the role of DevOps if needed. I am also experienced with Construct 3, Godot, and GMS. I started my career as a game developer, but I always wanted to learn more so my next stop was Web and mobile development. ⭐️ Experience in Web development as: ✅ Front-end developer(jamstack) ✅ Back-end developer ✅ Full-stack developer ✅ DevOps ⭐️ Experience in game development as: ✅ lead programmer ✅ designer ✅ pixel artist

React.js
React VR
GIMP
React
Next.js
Gatsby.js
Django
Node.js
Decap CMS
CSS 3
C++
HTML5
JavaScript
Godot
GameMaker
Construct 3
$60 hourly
- 5.0/5
- (17 jobs)
I have over 4 years of experience as a Solidity and React.JS developer, 4 years of experience as a Software Engineer, over 10 years of experience in general programming and have Master's degree in Computer Science. I have experience in working with multiple clients that either need help on only Frontend development, Blockchain development or Full-Stack. I'm fully proficient into writing completely custom code in Solidity based on clients wishes, integrating it properly onto the website and connecting it to the backend server if needed. Blockchain development is a very complicated and sensitive business and you should choose to work with professionals that develop safe and tested smart contracts. Having an untested and poorly written smart contract can put your users funds in danger and ruin your entire project. I can create multiple custom DEFI solutions and also fork existing ones. Some of the many projects which I've built in the past are: • Smart contract that allows users to bet on a price prediction of cryptocurrencies using decentralized oracles • NFT launches/drops : regular, whitelisted, gasless whitelisting using wallet signatures, Merkle Tree etc. • NFT staking, merging etc. • ERC20 token ICOs: regular, whitelisted, gasless whitelisting • ERC20 tokens with custom specifications: burnable, tax fee on buying/selling etc. • DeFi forks of platforms (Uniswap, Pancakeswap and others) • Creating a bridge for wrapping NFTs and ERC20 tokens between chains I am highly capable of building you full custom solutions on Ethereum, Binance Smart Chain, Polygon and many other chains.

React.js
Next.js
Solidity
Blockchain
Smart Contract
JavaScript
React
$70 hourly
- 5.0/5
- (7 jobs)
🙌 4+ Years of experience in full-stack web development 💯 Collaborated with big US agencies like Mayven Studios WORKING WITH ME YOU WILL GET: ▪ custom creative professionally looking UI/UX design ▪ responsive HTML (will pass Google mobile-friendly test, work on any device and OS) ▪ animation if needed ▪ WordPress/Woo backend ▪ CMS system that allows you to change any content you want with ease ▪ custom theme development ▪ 3rd-party services and payment systems API integration ▪ SEO ▪ support ▪ warranty IF YOU ARE: ▪ looking for a professional to build a website ▪ want to make a redesign, add functionality, need a back-end or a front-end development ▪ need to optimize site speed, integrate PayPal, Google Maps, add a feedback form, create new pages, or create the site from scratch ▪ create a web APP or you looking for new and creative ideas for a friendly and clean web design I will be glad to discuss the details of your project and assist you ________________________________________________________________________________________ Profile keywords: website | websites | HTML | HTML4 | CSS | CSS3 | JS | JavaScript | WP | WordPress | PHP | Laravel | Sass | WordPress Theme | Graphic Design | UX/UI | Design | Web development | Website Development | React.js | Next.js | Headless WordPress | WPML | Yoast SEO | SEO | API | Elementor | Bricks | Bricks Builder | Animation | Frontend | Backend | Word press | NGINX | Rest | Website development | Custom themes | Frontend Developer | Figma to WordPress | Figma to HTML/CSS | Website Designer | | WordPress Optimization | PSD to WordPress | WordPress SEO Plugins | WordPress Plugin | WordPress Landing Page | WordPress Development | WordPress Backup | WordPress Bug Fix |

React.js
WordPress Website Design
WordPress Website
WordPress Theme
SCSS
Next.js
Laravel
CSS
HTML
Git
PHP
JavaScript
React
WordPress Plugin
WordPress
$40 hourly
- 5.0/5
- (62 jobs)
⭐⭐⭐⭐⭐"Igor was fantastic. He was very communicative, great work ethic and extremely experienced. I'm a developer and lead a team of more than 30 software engineers and Igor's work was top notch. I will certainly hire him again!" Josh Miramant, Blue Orange Digital I am a front-end developer who specializes in data visualization using d3.js, vector graphics, interactives, and animation. I have experience throughout the entire scope of web projects and have designed UI/UX, assets, templates, and projects. I have analyzed, cleaned, and converted data and worked with databases and APIs. Embracing web experiences outside of the front-end has helped me develop original, concise, and effective interfaces.

React.js
Map Integration
Map Visualization
SVG
Node.js
Git
Next.js
React
JavaScript
CSS 3
HTML5
Data Visualization
Leaflet
D3.js
$45 hourly
- 5.0/5
- (28 jobs)
SQL Server performance tuning, advanced SQL knowledge, data modeling. Deep knowledge of SQL database design and performance tuning, building ETL pipelines and finding trends in data sets and developing algorithms to help make raw data more useful to the enterprise.

React.js
Data Integration
React
Performance Optimization
PostgreSQL Programming
Enterprise Resource Planning
Microsoft SQL Server Programming
Odoo
Machine Learning
Microsoft Access
Transact-SQL
SQL
C#
Python
$25 hourly
- 5.0/5
- (10 jobs)
If you need an affordable full-stack developer who can do the highest quality work in the Symfony framework, I am your first bet. With more than 5 years of experience in PHP and Symfony, I am ready to do all kinds of backend work, which includes database management, creating REST API for front-end or mobile app, writing unit tests with PHPUnit, and handling basic dev-ops stuff (experience with AWS). I have a great knowledge of React on the frontend as well, which I use to create complex web interfaces.

React.js
jQuery
Linux
Redux
Android
Symfony 4
React
React Native
Symfony
TypeScript
CSS 3
HTML5
JavaScript
Java
PHP
$25 hourly
- 5.0/5
- (9 jobs)
Greetings! I'm Petra, a dedicated Front-end Developer with over 3 years of experience in creating high-quality, responsive, and pixel-perfect websites. My focus is on translating design visions into seamless, functional online experiences, especially within Shopify. In Shopify development, I excel at crafting custom themes and features that bring Figma designs to life. I specialize in using Shopify's Liquid template language to build dynamic, interactive e-commerce stores that captivate users and drive conversions. Whether it's customizing the Dawn theme, implementing unique functionalities, or optimizing site performance, I ensure that every project not only looks fantastic but also performs flawlessly. Here's a glimpse of what I bring to the table: Technologies and Skills: - HTML5, CSS3, Sass - Bootstrap, Tailwind - JavaScript, Webpack, Handlebars - Liquid, React, GSAP Content Management Systems: - Shopify (custom themes, Liquid development, Dawn theme customization) - WordPress, Squarespace, Webflow Project Management Tools: - Jira, Github Projects Design Software: - Adobe Photoshop, Adobe Illustrator, Figma, Adobe XD Key Highlights: - Transforming Figma designs into fully functional Shopify websites, ensuring pixel-perfect precision and responsiveness. - Developing and customizing Shopify themes, with a focus on the Dawn theme, to meet unique client requirements. - Creating custom sections and blocks to enhance site functionality and user experience. - Updating existing themes to align with new design requirements and improve performance. - Configuring the Dawn theme to fit new design specifications and client branding. - Implementing tailor-made features and conducting comprehensive testing to ensure top-notch performance. - Creating and managing Shopify web stores, ensuring a seamless and engaging user experience. - Optimizing site performance using tools like Google PageSpeed Insights and Lighthouse. My Work Approach: Understanding Requirements: I begin by thoroughly understanding the project requirements, design specifications, and any additional functionalities. Clear communication with the team and stakeholders is crucial to align expectations and plan the development phases. Development Best Practices: I adhere to coding standards and best practices, such as modular coding, proper indentation, commenting, and naming conventions. Using Git for version control ensures that every change is tracked and can be reviewed if needed. Comprehensive Testing: I employ a multi-faceted testing strategy, including: Integration Testing: Ensuring that different modules and components work together seamlessly. Cross-Browser Testing: Testing the website across multiple browsers to ensure compatibility and a consistent user experience. Mobile Responsiveness: Rigorously testing the design on various devices and screen sizes to ensure it is fully responsive and mobile-friendly. Manual Testing: Performing extensive manual testing to catch any edge cases or user interface issues that automated tests might miss. Performance Optimization: I use tools like Google PageSpeed Insights and Lighthouse to check and optimize the performance of the website. Image optimization is also crucial, ensuring all images are web-optimized without compromising quality. Code Review and Collaboration: Peer code reviews are an integral part of my process. This helps in getting feedback from other developers and catching potential issues early. Collaboration with designers ensures that the implementation matches the design specifications accurately. User Acceptance Testing (UAT): I involve stakeholders in UAT to ensure the final product meets their expectations and requirements. This step is crucial for validating the user experience and making necessary adjustments before deployment. Final Checks and Deployment: Before the final deployment, I use a comprehensive checklist to verify that all aspects of the project have been addressed, including functionality, design, performance, and SEO. The code is first deployed to a staging environment to test it in a production-like setting. Continuous Improvement: Post-deployment, I gather feedback and monitor the website for any issues. This feedback loop helps in making continuous improvements and ensuring the website remains optimized and functional. Let's Connect! If you're looking for a Shopify expert who can bring your designs to life and enhance your e-commerce platform, feel free to reach out. I'd be happy to share my portfolio and discuss how we can collaborate to achieve your web project goals. Best regards, Petra

React.js
Squarespace
React
Liquid
Webflow
WordPress
Shopify Development
Shopify
Web Development
CSS
JavaScript
Front-End Development
Sass
Figma
HTML
$25 hourly
- 5.0/5
- (4 jobs)
Hello! My name is Lorena and I am a full-stack developer with almost 8 years of professional experience. I fell in love with programming while studying Mathematics and Computer Science, where I got my master's degree. I simply love solving problems! I worked mostly for agencies, so I worked on many different projects and topics. In most of them, I was either highly involved in discussing features with clients or I was leading the project in full. I also must say that I like to write clean, reliable, and reusable code. My primary stack is: - Frontend: React, HTML, CSS, Typescript, Javascript, React Query, TailwindCSS - Backend: Node, Nest, Express, Sequelize, TypeORM - DB: MySQL, PostgreSQL I also worked with Asp.Net technologies (C#, EF, LLBlgen)

React.js
NodeJS Framework
NestJS
React
ExpressJS
SQL
ASP.NET
C#
ASP.NET Web API
Database Design
MySQL
MongoDB
JavaScript
TypeScript
RESTful API
API
Node.js
ASP.NET MVC
Database Development
Tailwind CSS
CSS
$30 hourly
- 5.0/5
- (4 jobs)
I’m Marta, a web developer with 4y of experience and masters in Physics and Economics. I specialize in building websites using Webflow and have expertise HTML, CSS, JavaScript and ReactJs. I offer website design, development and training in website maintenance . My goal is to provide high-quality work with excellent communication and prompt delivery. Let’s discuss how I can use my academic background and web development skills to help you accomplish your goals.

React.js
Webflow
CSS
React
HTML
JavaScript
Git
Responsive Design
$24 hourly
- 5.0/5
- (2 jobs)
🎨 My expertise lies in creating responsive and cross-browser web projects, following the Mobile-first approach. I am well-versed in the BEM methodology, ensuring semantic validity in HTML, and have strong CSS skills, utilizing LESS/SASS/SCSS. 🚀 Proficient in JavaScript, jQuery, Vue.js, React, and React Native, I am adept at building dynamic and interactive web applications. 🔧 I have hands-on experience with template systems like Jade, Haml, and Handlebars, and I am skilled in using Gulp, Grunt, and npm CLI for efficient development workflows. 💡 Skilled in working with UI frameworks such as Bootstrap and Vuetify, and I am adept at creating custom components using Flexbox, enhancing the overall UI/UX. 🎨 While I am a proficient front-end developer, my expertise primarily lies in using graphic and site-creation software tools such as Adobe Photoshop, Figma, Adobe Illustrator, Sketch, Zeplin, and Avacode. 💼 I possess extensive experience in e-commerce, having contributed to projects within both in-house teams and external collaborations. 🔍 Proficient in creating detailed project wireframes, my skills enable me to develop high-quality web projects that seamlessly integrate visual appeal with superior functionality. Buzzwords: Front-End Development, JavaScript, React, Vue.js, Web Design, Web Development, CSS, HTML5, Redux, TypeScript, RESTful API, React Native, Web Application, Git, UI/UX Prototyping, Responsive Design, API Integration, Node.js, Python, SQL, Adobe Photoshop, gulp, Ionic Framework, MySQL, Landing Page, Template Markup, Django, Flask, AngularJS, Graphic Design, Figma, SCSS, Svelte, Tailwind CSS, Bootstrap, React Bootstrap, Next.js, AWS Amplify, AWS AppSync, GraphQL, Firebase, Firebase Cloud Firestore, Google Cloud Platform, MongoDB, Socket Programming, Material UI, Vue 3, Amazon Web Services, Agile Software Development, Software Debugging, JSON, Linux, Google Analytics, Agile Methodologies, User Authentication, jQuery, E-commerce Website Development, Magento, Laravel, Payment Functionality, NFT, Three.js, esbuild, GLSL Shading, Business 1-9 Employees, Business 10-99 Employees, OAuth, ArcGIS, GIS Software, SaaS, net 6, Mobile App Development, Cross-Platform Mobile Apps, End-to-End Solutions, User-Centric Design, Mobile App Optimization, Performance Tuning, Data Security, Cloud Integration, Real-Time Applications, Continuous Deployment, Version Control (Git), Automated Testing, Custom App Development, Interactive Prototypes, Code Reviews, Database Management (SQL/NoSQL), Microservices Architecture, Progressive Web Apps (PWA), State Management (Redux), DevOps Practices, CI/CD Pipelines, Android, Flutter, iOS, Tablet, Camera, Location-Based Service, Auth0, Firebase Realtime Database, Swift, Docker, Firebase push, ExpressJS, prisma, Bluetooth, bluetooth low energy, In-App Purchases, Augmented Reality, Image Analysis, FastAPI, Boolean algebra, Mathematical Modeling, Book, Content Writing, Copy Editing, English, Error Detection, Proofreading, OpenAI API, Vuetify, talib, AJAX, Celery, Google Chrome Extension, Next.js, GitHub, Angular, Database Architecture, NoSQL Database, ChatGPT, Chatbot Development, Machine Learning, Natural Language Processing, BootstrapVue, Nuxt.js, Vercel, Django Stack, LangChain, PandasAI, Browser Extension, JUnit, Kotlin, NGINX, Oracle Database, Stripe API, Supabase, iPadOS, Software Architecture & Design, Stripe API, Supabase, iPadOS, Software Architecture & Design

React.js
Mobile App Development
Firebase
Python
Android
iOS
React Native
Web Development
Redux
TypeScript
Node.js
CSS
HTML
React
Vue.js
JavaScript
$70 hourly
- 5.0/5
- (15 jobs)
👋 Hello! 👉 I'm an experienced Software Developer with over 10 years of experience. 👉 You can expect quick turnaround, timely updates about your project with full transparency ✅ Top Rated | 100% Job Success Score ✅ I'm quite flexible and easy to work with 👉 You can hire me as solo freelancer. 👉 If you have an existing team in-house or a team of freelancers I have no problem jumping in quickly learning the ropes and becoming a part of a team. 👉 Also I am able to assemble a team fast to expedite the project according to your specific needs. ✅ I can help you with 👇👇👇 👉 Mobile App Development Flutter, React Native (Expo and React Native CLI) Help with Apple and Google app publishing process on their respective app stores 👉 Web App Development (Frontend, Backend) JavaScript, TypeScript, React, Vue, NextJS, NodeJS, PHP, Laravel Tailwind, Bootstrap, CSS, HTML MySQL, PostgreSQL, MongoDB, Firebase, SupaBase WebSockets, WebRTC, APIs 👉 Blockchain Web3 development Solidity, EVM, Smart Contract Development, Tokens, dApps, Wallets, MetaMask integrations Ethers.js Web3.js, Libp2p, IPFS Hardhat, Truffle, Ganache, Remix 👉 Cloud & DevOps AWS, Azure, Google Cloud Platform, Heroku, Vercel Application Deployment, Domain Setup, Infrastructure Setup, Git & Pipelines 👉 CMS: Wordpress, WooCommerce, Shopify, Strapi Custom Plugin Development, Shop setup, 3rd party integrations, payment gateway setups, theme modifications Automations, AI integrations, Migrations 👉 Project Management / Engineering management Running a project for you, writing technical specification for developers, leading a team 👉 UI/UX Design Figma, AdobeXD Wireframes, Prototypes, High-Fidelity Design, Branding Product Design, Discovery, Research and Analysis ✅ I'm confident that I can help you out and if you think my skillset solves your problem, go ahead and message me. I'm happy to help even if we don't end up working together. Cheers, Neven

React.js
Mobile App Development
Software Architecture
Software Development
React Native
Next.js
HTML
Web Development
PostgreSQL
Node.js
PHP
React
JavaScript
Laravel
MongoDB
MySQL
$25 hourly
- 4.4/5
- (8 jobs)
Hi there! My name is Ivan Šundrović and I am a Vue.js developer with 3 years of professional experience in building modern web applications. I specialize in using Vue.js along with Nuxt, TypeScript, Tailwind, Git, PWA and AMP to create high-quality, responsive, and scalable web applications. My expertise lies in building custom Vue.js components and plugins, optimizing performance, implementing server-side rendering with Nuxt, and leveraging TypeScript to ensure code consistency and reliability. I am also well-versed in using Git for version control and collaboration with other developers. In addition to my Vue.js skills, I also have experience working with Node.js and React, which allows me to integrate with existing applications and build full-stack solutions. My ability to learn quickly and adapt to new technologies has helped me to stay on top of the latest trends and tools in web development. If you're looking for a reliable and experienced Vue.js developer who can help you build your next web application, then look no further. Let's work together to create something great!

React.js
Vuex
Web Application
HTML5
Vue.js
React
Bootstrap
JavaScript
$24 hourly
- 4.5/5
- (9 jobs)
Need help with launching high-performing, user-centric mobile apps from scratch to the App Store and Play Market? 🚀 Elevate your project with a consultation! Click "Invite" to discuss your needs and explore effective solutions. 👑 I'm your go-to specialist for full-stack development, focusing on creating dynamic web applications and cross-platform mobile apps. My modern approach to development ensures high performance and user-centric design. With extensive experience, I'm ready to transform your vision into a functional and visually appealing product. What I offer: ✔️ Full-stack development using Django and React for web applications. ✔️ Cross-platform mobile app development with React Native. ✔️ Backend development with Python, PostgreSQL, MySQL, and Firebase. ✔️ Scalable architecture and responsive UI/UX design. ✔️ RESTful API integration and cloud integration using Firebase. ✔️ Performance tuning and data security. Here's a streamlined version of your Upwork profile, complete with the fonts and icons as requested: Experiencing the adverse effects of slow web application performance on your revenue? Research reveals that even a mere one-second delay in page load time can lead to a 7% decline in conversions, negatively impacting your bottom line. As a Senior Full Stack Developer specializing in React Native with 7 years of experience, I deliver high-performance mobile applications while prioritizing data protection. 🔥 By optimizing app performance, I significantly reduce load times, maximize conversions, and enhance user experiences. I implement robust security measures and adhere to industry standards to protect against potential threats, ensuring the safety of your valuable information. Together, let's propel your business to new heights of performance, conversions, and user satisfaction. 𝐌𝐘 𝐏𝐑𝐎𝐅𝐄𝐒𝐒𝐈𝐎𝐍𝐀𝐋 𝐀𝐂𝐇𝐈𝐄𝐕𝐄𝐌𝐄𝐍𝐓𝐒 𝐀𝐑𝐄:: 🚀 Improved App Performance: Implemented optimization techniques resulting in a 30% decrease in page load time, enhancing user experience and reducing bounce rates. 🔒 Secured Data and Mitigated Risks: Implemented robust security measures resulting in a 95% reduction in potential vulnerabilities, ensuring the safety of sensitive customer data and minimizing the risk of data breaches. 📈 Scalable Application Architecture: Designed and implemented a scalable architecture that allowed clients' applications to handle a 200% increase in user traffic, ensuring seamless performance during peak periods. ⏱️ Streamlined Development Process: Introduced agile development methodologies, resulting in a 40% reduction in project turnaround time, allowing for faster delivery and increased client satisfaction. 𝐇𝐎𝐖 𝐓𝐇𝐄 𝐇𝐈𝐑𝐈𝐍𝐆 𝐏𝐑𝐎𝐂𝐄𝐒𝐒 𝐋𝐎𝐎𝐊𝐒 𝐋𝐈𝐊𝐄: There are two options for collaborating with Avalon Soft Talents-as-a-Service model: A dedicated expert(s) on a subscription basis. Project-Based Collaboration model: Delivering a certain scope or solution within a pre-defined timeline/budget. How to start: Intro Meeting: Identify your request. Team Identification: Assign specific talent or team for your request. Research: Outline unique collaboration terms. Proposal: Present and negotiate your proposal. Contract: Sign the contract. Kick-off: Start ongoing collaboration. 🔧 React Native Mobile App Developer Skills: 👨‍💻 Technologies: JavaScript, Vue.js, React, React Native, CSS, Bootstrap, Vuetify 🌐 Frameworks: Django, React, RESTful APIs 🚀 Front-End: HTML5, CSS3, JavaScript, jQuery, Bootstrap, React.js 🛠️ Back-End: Python, ActiveRecord, PostgreSQL, MySQL, MongoDB, Firebase 📚 Testing: RSpec, Capybara, Selenium, Pry, Byebug ⚙️ Deployment: Heroku, AWS, Git, GitHub, Bitbucket 🔒 Security: Web app security, authentication, authorization 🌍 APIs: RESTful APIs, third-party integration 📈 Optimization: Performance, caching, code optimization 🆙 If you are interested in discussing your project with me, make sure to click the 👉🟢INVITE🟢 button, and let’s talk 🤝 Highlighted Skills: React Native, JavaScript, Vue.js, React, CSS, Bootstrap, Vuetify, Django, Python, PostgreSQL, MySQL, Firebase, Docker, AWS Amplify, Git, CI/CD pipelines, Automated Testing, Agile Methodologies, RESTful API Integration, Scalable Architecture, Responsive UI/UX Design, Performance Tuning, Data Security, Cloud Integration, Real-Time Applications, Third-Party API Integration, Continuous Deployment, Version Control (Git), Custom App Development, Interactive Prototypes, Code Reviews, Database Management (SQL/NoSQL), Microservices Architecture, Progressive Web Apps (PWA), State Management (Redux), DevOps Practices, API, Mobile App Development, iOS, React Hooks, React JS, TypeScript, Firebase Cloud Firestore, Firebase Realtime Database, AWS Amplify, Front-End Development, SQL, Sass, jQuery, REST API, Twilio.

React.js
Firebase
Android
iOS
Mobile App Development
React Native
TypeScript
Node.js
Django
React
Web Development
Python
JavaScript
HTML
Vue.js
CSS
$40 hourly
- 5.0/5
- (2 jobs)
Product-minded frontend developer with leadership experience and 5+ years of experience building robust and pixel-perfect web applications using React, Next, Typescript and Tailwind. About me: 💪 Overdelivering and always pitching ideas to improve the product 🫧 Writing clean and maintainable code 🙌 Great team-worker ⚡ Comfortable navigating in a complex codebase ⚓ Strong sense of ownership and responsibility ✌️ Always maintaining positive and inclusive work culture 🤝 Willing to mentor and be mentored 🤓 Always trying to improve myself 😎 Easy to work and get along with ------------------------ Testimonial from my last client: "We've been working with Neven for a few months now and we're impressed by his strong sense of UX and frontend skills. He actively contributes ideas and improvements to our backlog. His English is perfect, so it's very easy to communicate with him. On a personal note, Neven is a very nice person and always easy to work with. We look forward to continue working with him." ------------------------ Looking forward to working with you!

React.js
CSS
HTML
JavaScript
TypeScript
Next.js
Tailwind CSS
React
$50 hourly
- 5.0/5
- (87 jobs)
I am a senior GIS mapping professional, specialized in cartography and developing scripts and web and mobile apps for mapping, visualizing and analyzing geospatial data. I'm dedicated to my work and give my best to deliver well-designed solutions and efficient and clean code in the agreed time frame. Alongside my extensive practical knowledge, I have completed my formal education with Master's degree in Geography and GIS Science. I pride myself on my ability to solve problems, the attention I give to details, and smooth communication which is vital to any project's success. I usually work with free and open source solutions, but also with commercial ones. 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 𝐓𝐨𝐨𝐥𝐬 • React, React Native, NextJS, Angular, TypeScript, Redux, WebSockets, Expo etc. 𝐌𝐚𝐩𝐩𝐢𝐧𝐠 𝐋𝐢𝐛𝐫𝐚𝐫𝐢𝐞𝐬 𝐚𝐧𝐝 𝐓𝐨𝐨𝐥𝐬 • Mapbox, Turf.js, Leaflet.js, Google Maps APi, ArcGIS, OpenLayers, deck.gl, Maputnik, TileServer GL 𝐒𝐭𝐲𝐥𝐢𝐧𝐠 𝐚𝐧𝐝 𝐔𝐈 • Styled Components, Material UI, Canvas API, Reanimated.. 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 • Node.js, Express,js • Python/Django - not expert level 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞 • MongoDB, PostGIS - (PostgreSQL), MySQL, Snowflake, 𝐃𝐞𝐯𝐎𝐩𝐬 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 • CI/CD pipelines with Node.js/Python, integrating Docker, Redis etc.. 𝐂𝐨𝐧𝐭𝐚𝐢𝐧𝐞𝐫𝐢𝐳𝐚𝐭𝐢𝐨𝐧 & 𝐂𝐚𝐜𝐡𝐢𝐧𝐠 • Docker, Redis, NGINX 𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝐂𝐨𝐧𝐭𝐫𝐨𝐥 • Git, GitHub, GitLab 𝐂𝐥𝐨𝐮𝐝 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 & 𝐃𝐞𝐩𝐥𝐨𝐲𝐦𝐞𝐧𝐭 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦𝐬 • Heroku, Netlify • AWS - not expert level 𝐌𝐲 𝐩𝐫𝐨𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬; • Developing Interactive Maps and complex Web and Mobile GIS apps (Mapbox, React, Next.js, Angular, PostGIS, MongoDB, Node.js...) • Setting up custom tile servers with fully self-hosted basemaps and vector/raster data • Navigation/Live Tracking maps • Designing thematic and topographic maps, • Geocoding and searching geo data, • Working with geospatial data formats (geojson, KML, topojson, shapefile, GeoTIFF..) • Creating 2D/3D map animation, • Utilizing OSM and Census data... I believe that quality is the key to a job well done. I always try to work as quickly as possible and efficiently. With that said, I can state I give my best to make my clients happy.🤝

React.js
Geospatial Data
Geocoding
PostGIS
Next.js
TypeScript
GeoJSON
OpenStreetMap
GIS
Node.js
React
QGIS
Mapbox
Leaflet
Google Maps API
JavaScript
$35 hourly
- 5.0/5
- (5 jobs)
- React developer (Next JS, Tailwindcss, Solidjs) 5 YoE - Certified on Toptal - Managed project for Sweden's fastest growing startup Vont - Studied Computer Science - Capable of working Full-Stack - Fluent spoken and written english - Able to recreate pixel perfect sites from Figma, XD, Photoshop - Personal project on play store with 100,000 downloads - Worked with: Firebase, Supabase, Planetscale, Postgresql, headless CMS's (GraphCMS) among others

React.js
Python
React
Next.js
CSS
JavaScript
TypeScript
Tailwind CSS
$36 hourly
- 5.0/5
- (15 jobs)
With over 5 years of experience as a full-stack web and mobile developer, I specialize in delivering tailored solutions for a wide range of industries, from e-commerce to aviation manufacturing. I thrive on transforming ideas into reality, whether it’s building MVPs to validate markets or driving projects to completion with long-term partnerships. What I offer: ✅ Lightning-Fast MVP Development: I excel at building MVPs in record time, enabling clients to quickly test, validate, and refine their concepts, gaining the confidence to scale globally. ✅ End-to-End Project Execution: From inception to launch and beyond, I work closely with clients to ensure their vision is realized and sustained. ✅ Cross-Platform Mobile Solutions: Using React Native, I craft seamless mobile applications that work effortlessly across platforms. 🛠️ Tech stack: My technology choices are battle-tested for performance, scalability, and versatility: React, Remix, Tailwind CSS, .NET Core, Node.js, PostgreSQL, React Native. I’m passionate about creating innovative solutions that deliver real-world impact. Whether you need a fast MVP turnaround or a dedicated partner for the long haul, I’m here to make it happen. Let’s bring your vision to life!

React.js
Redux
Web Application
Next.js
Socket.io
Node.js
React
React Native
HTML5
JavaScript
CSS
MySQL
$40 hourly
- 5.0/5
- (5 jobs)
As a web developer with years of experience, I specialize in building websites using React.js, Node.js, WordPress. I am dedicated to providing my clients with modern and responsive websites that are optimized for search engines and deliver exceptional user experiences. With my technical expertise and attention to detail, I am capable of creating complex web applications that are both efficient and effective. My proficiency in prototyping tools such as Figma and Zeppelin allows me to create interactive designs and prototypes that help me to visualize and test the website before development begins. I understand that every business has unique needs and requirements, and I work closely with my clients to ensure that their website is tailored to their specific needs. Whether you need a new website built from scratch or want to upgrade your existing website, I am confident in my ability to deliver exceptional results. My passion for web development drives me to stay up-to-date with the latest technologies and best practices in the industry. I am committed to delivering high-quality web development services that are tailored to meet the unique needs of my clients. Contact me today to learn more about my web development services and how I can help bring your vision to life.

React.js
Adobe Illustrator
JavaScript
WordPress
CSS
CSS 3
HTML
Node.js
Vue.js
React
HTML5
Adobe Photoshop
$33 hourly
- 4.9/5
- (7 jobs)
I'am software developer and entrepreneur with a strong foundation in full-stack development with over five years of experience, I’ve successfully led and contributed to various projects, bringing both technical expertise and leadership skills. I’m passionate about problem-solving, committed to continuous growth and not scared of taking responsibility for my actions. 💻 Techonologies & Skills 🔧 Frontend: React / NextJS, JavaScript / TypeScript, HTML & CSS Backend: NodeJS Mobile development: React-native Databases: SQL (PostgreSQL) & NoSQL (MongoDB) Testing: Jest, Cypress, Performance testing and diagnose Miscellaneous: git, CI/CD (pipelines/actions), Docker AI/ML: OpenAI, Ollama, Chatbots, RAG

React.js
Golang
CSS
React
Next.js
MongoDB
ExpressJS
Node.js
HTML
$70 hourly
- 5.0/5
- (14 jobs)
Developing custom WordPress plugins and themes. Maintaining and fixing websites and servers. Proficient in PHP, JavaScript, React, and other web technologies. I have experience developing custom WordPress themes, plugins, API integrations, and WooCommerce extensions. I like to have a deep understanding of the tools I work with, so I also contribute to Gutenberg, WordPress core, and other open source projects. If you're interested in my personality and personal interests: I'm very curious and feel like this entire reality is a weird mystery that I understand very little / nothing about. I love philosophy. I love listening to Lex Fridman and Tim Ferriss podcasts. I think I consume too much caffeine. Before becoming a freelancer, I worked at Photomath, an EdTech app with over 200M downloads where I developed tools for employees based on React, JavaScript, MobX, etc. For example, I developed a LaTeX transpiler that converts LaTeX into Photomath's calculator syntax. I am always open to answer any questions. Feel free to invite me to take a look at your project.

React.js
WordPress Development
WordPress Plugin
WordPress Theme
WooCommerce
Linux
Web Hosting
TypeScript
JavaScript
Node.js
PHP
WordPress
React
$70 hourly
- 5.0/5
- (9 jobs)
I don’t just design beautiful UX/UI or build web and mobile apps—I solve problems. And I know why you’re here... You’ve hired designers and developers in the past, maybe even great ones. But now, you’re ready for more than just great—you’re ready for a partner. A partner who not only understands your challenges but is as dedicated to solving them as you are. I’m Mateo, the founder of BrightDock, and I lead a brilliant team of designers, developers, and strategists. Together, we’ve built digital solutions used by over 100 million people globally. We’ve fine-tuned our process so we know exactly what your users feel and think, and we know how to translate that into exceptional user experiences and powerful digital products. Your challenges are our inspiration. Whether you’re struggling with user engagement, needing an amazing, highly converting user journey, or looking for a robust development solution, my team and I are ready to dive in. And as I said.. We don’t just design beautiful UX/UI or build powerful apps—we solve problems that matter. When you work with me, you’re not just getting a team; you’re getting a partner that has earned the trust and love of both celebrity clients and enterprise giants alike. We’ve collaborated with names like Rita Ora, El Rubius, and Illo Juan, and worked with major players such as Airbus, Sky News, and Freelancer, as well as countless incredible small and medium-sized brands. Here’s how we can help you: ☑️ UX Research & Design ☑️ UI Design ☑️ Web Development (React.js, Vue.js, Typescript) ☑️ Mobile App Development (Flutter, React Native, Native tech stacks) ☑️ Backend Development (Python/Django, Node.js) ☑️ WordPress Development ☑️ Custom Software Development ☑️ Digital Business Transformation ☑️ AI & Machine Learning Why trust us? Because our clients do—every single time. With over 250 reviews online, all for large-ticket projects, each and every one of them is a perfect 5.0. We’ve also been recognized for our excellence with numerous awards: 🔁 Highest rehire rate on Freelancer.com 🔝 Top Rated Plus & Expert-Vetted on UpWork.com #️⃣1️⃣ Longest standing #1 team on Freelancer.com #️⃣1️⃣ Fastest-growing tech agency in Central Europe according to Deloitte #️⃣3️⃣ Best B2B company in Croatia according to Clutch #️⃣4️⃣ Fastest-growing tech company in Central Europe according to Deloitte #️⃣5️⃣0️⃣ Best web development team in the world according to Clutch ⭐⭐⭐⭐⭐ Only team on Freelancer.com with all 5-star reviews (220) We’re so dedicated to your success that it’s not just a job for us—it’s personal. We’re in this with you, every step of the way, to make sure we’re not just delivering what you need, but exceeding your expectations. Let’s talk about how we can solve your problems together and create something incredible. I’m excited to partner with you. Cheers, Mateo - Founder & Head of Growth at BrightDock LLC

React.js
Web Application Development
Web Application
WordPress Website
WordPress Development
Web Design
WordPress
Web UI
Web Development
UI Graphics
User Experience Design
UX & UI
App Development
UI/UX Prototyping
React Native
React
$75 hourly
- 5.0/5
- (14 jobs)
🔥 Available 40 hrs/week 🔥 👋 I'm a senior Fullstack (Nodejs, ReactJS, Aws) developer from 🇭🇷 with experience in developing professional web applications and building software solutions. Good in developing responsible layouts from scratch using modern technologies such as HTML5, CSS3, and JS (ES6+). Experienced in building reactive single page apps, pwa, API's, data pipelines integrations, analytics dashboards. I have profound experience with Amplify Framework, Appsync, lambda, MERN stack, AWS infrastructure, Postgres, API integrations, microservice architecture, Saas applications, Front end to Saas integrations. My skills: ✔️React.js, Javascript, Typescript, Next.js, ✔️ Node.js, Express, Fastify, Graphql, Postgres, MongoDB, Nest.js ✔️ AWS, Amplify, AWS Lambda, Appsync, Cognito ✔️ HTML5, CSS3, Bootstrap, CSS preprocessors (SCSS, SASS, Less) ✔️ Version Control System (GIT), Jira ✔️ Mobile-first development / Pixel-perfect development ✔️ Cross-browser compatibility (Edge, Safari, Chrome, Firefox, etc.) I'm the best in: 💎 Figma to React.js 💎 Figma to HTML / CSS; 💎Middleware and api development, AWS backend enviroments Have any questions? Want to discuss your projects? Want to start immidiately? Send me a message to start your project right now! Alan

React.js
GraphQL
Bootstrap
Amazon Web Services
Next.js
JavaScript
TypeScript
AWS CloudFront
API Integration
CSS
AWS Lambda
Front-End Development
AWS Amplify
HTML
NodeJS Framework
React
AWS AppSync
$40 hourly
- 5.0/5
- (8 jobs)
Full stack developer with an emphasis on the front end development with React.js and TypeScript. In love with blockchain tech and web3 principles

React.js
Solana
Google Cloud Platform
NestJS
PostgreSQL
Amazon S3
Web3
JavaScript
HTML5
TypeScript
CSS 3
Next.js
SCSS
React
Node.js
HTML
$50 hourly
- 5.0/5
- (6 jobs)
⭐⭐⭐⭐⭐ "Bruno has been an amazing contribution to our front-end team. He’s efficient, responsive, and helpful. He has made a new React.js screen to our site with a lot of complex animations and many of those little but important details for UX. He killed it basically, and we will definitely work with him again. Highly recommended freelancer!" I am a communicative person, who has a keen interest in developing scalable, maintainable software with high-quality code, on-time delivery, and adherence to specifications. Why am I good at it? As a passionate learner, I am always seeking new opportunities, and I care about the satisfaction of my customers. I worked on projects of famous companies or projects that famous companies used: ✅ Philip Morris IQOS Greece ✅ Music Supervisor / WeGetArtist (Used by Netflix) ✅ Optilogic Cosmic Frog ⭐ Valuable contributions I can make to your project ⭐ ✅ 4 years of experience in React.js development. ✅ In-depth understanding of React's core concepts. ✅ Proficient in diagnosing and resolving performance issues promptly. ✅ Amazing CSS skills that can make impossible animations possible. ✅ Expertise in refactoring class components into functional components using React hooks. ✅ Exceptional communication skills, providing 24/7 availability to keep you informed about project status. ✅ Dedicated to ensuring your success and delivering tangible value to your business. ⭐ Here are compelling reasons why choosing me sets me apart from other freelancers:⭐ ✅ Focus on providing value to all of my clients and earning their trust through exceptional service. ✅ Core commitment to over-delivering, going beyond expectations to leave clients amazed. ✅ Maintain a high level of responsiveness, keeping communication channels open for seamless collaboration. ✅ Demonstrate resilience in tackling any challenges faced by clients and finding effective solutions. ✅ Embrace kindness as a guiding principle, treating everyone with respect, empathy, and a genuine desire to improve their situations. ⭐Technologies ⭐ - HTML5, CSS3, SASS - Bootstrap, MUI, Tailwind, KendoUI - JavaScript, jQuery - React.js Next.js - Redux, Redux Saga, Redux Toolkit - Vue, Vuex, Nuxt - Typography - WebFonts, Font-Face - Responsive Design - Cross-browser Optimization - Yarn, NPM - Git, GitLab, GitHub, Bitbucket - Trello, Jira, Slack - Mac OS, Linux, and Windows user. Would you be interested in leveraging my skills in order to develop any application and grow your business at the same time? If you would like to discuss the job posting in more detail with me, you can invite me to your job posting.

React.js
GraphQL
Next.js
Vue.js
Nuxt.js
Vuex
Redux
React
jQuery
CSS
HTML
JavaScript
$50 hourly
- 5.0/5
- (6 jobs)
I 'm a web developer, mostly specialising in JavaScript. I have experience spanning both frontend, backend, CI and underlaying tooling and repo management. The emphasis of my work has been frontend, with, lately, working mostly on development infrastructure (monorepo management, bundling, CI and other tooling requirements). Experience across technologies: Frontent: - React has been my choice for a frontend library (with Next.js for SSR/SSG) until recently and am fairly knowledgable and experienced on the matter - I've recently been introduced to Svelte and Svelte-Kit which I really like and support - I've worked with a couple of CSS frameworks and have to say am very inclined to use TailwindCSS Backend: - I have mostly used Node.js for my backend needs, but am really a fan of Golang (which I haven't yet used in production environment) - I have some experience with Google cloud and Firestore for BaaS (and the underlaying ecosystem) Bundling/Testing/Tooling: - for bundling I've used Webpack (CRA templates + the pain of overriding them, as well as using my own "from-scratch" setup), lately I'm a big fan of Esbuild, but am using Vite for production projects (which utilises some ESBuild under the hood) - as for TDD, I have mostly used Jest + React Testing Library (for React) and Vitest + Svelte Testing Library (for Svelte) - I have average experience with Cypress for E2E testing of the apps - I like to organise all my production projects as monorepos for which I use Rush.js + pnpm and simply love the said technologies for organisation, scalability, maintainability and ease of use - TypeScript, ESLint and Prettier, I believe, should be the standard and not have to be mentioned at all, but still, I'll mention that I use both extensively and insist on doing so in any serious project CI/CD: - in CI I've used GitHub actions and haven't had a need to use anything else - for deployment, I've used Google Cloud and have a good understanding of Docker (with not as much experience in production) My approach is always driven by scalability, maintainability, clean and organised code with reduced redundancy and employed automation wherever possible.

React.js
RESTful API
Redux
GraphQL
JavaScript
React
Node.js
Next.js
TypeScript
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