Upwork home
Sign up
Secondary

Hire the best React.js Developers in Athens, GR

Check out React.js Developers in Athens, GR with the skills you need for your next job.
Hire freelancers
  • $40 hourly

    • 4.9/5
    • (12 jobs)
    I am a freelance engineer creating modern solutions to diverse product needs, blending data, geospatial and web development. I love making web apps, building interactive map dashboards, and taking digital products from concept to delivery. Services: Web development | Product development | Maps and visualization | Data analysis and GIS | Technical consultation 🤓 Some Highlights • 4+ years of hands-on experience in web development and React • 8+ years of hands-on experience in map creation and GIS • Co-founder and developer of Ptolemy.app, a European digital travel guide app • Published Geo AI research in the International Journal of E-Planning Research • MSc in Geoinformation Tech & Cartography (University of Glasgow, UK) • MEng in Civil Engineering (University of Bristol, UK) • Online GIS specialization by UC Davis ⛳ What You Gain by Working With Me • Technically sound, visually stunning, and easy-to-understand cartography • Ready-to-deploy online and offline maps tailored to your needs • A flexible approach to researching and recommending optimal solutions • Transparent and effective communication throughout our collaboration 👔 Trusted by Diverse Companies I have worked with innovative companies like Addresscloud, SmartHaul, Outdooractive, and Aegis Energy. "An excellent experience working with Nick - very responsive; communicated clearly; suggested good ideas and worked with my imperfect brief to deliver a high-quality mapped product. Highly recommended!" - Aegis Energy 🔧 Tech Stack: React, Next.js, Vue.js, Postgresql, PostGIS (spatial Postgresql), Supabase, Node.js, Express, QGIS, Mapbox, Google Cloud, Leaflet, Open Street Map, MongoDB, Python, FastAPI, Vector Graphics (Inkscape/Illustrator)
    Featured Skill React.js
    Map Visualization
    Map Integration
    Geocoding
    Progressive Web App
    React
    Cartography
    PostgreSQL
    Next.js
    PostGIS
    Leaflet
    Mapbox
    OpenStreetMap
    Python
    Google Maps API
    QGIS
  • $50 hourly

    • 5.0/5
    • (5 jobs)
    Throughout my freelancing career, I’ve worked on a wide range of projects that highlight my skills and commitment. My experience includes: 1. MPTE Projects: Completed numerous machine post-editing tasks, ensuring high-quality and consistent translations. 2. Greek to English & Vice Versa: Translated, proofread, and refined over 100,000 words, ensuring precise and contextually accurate content. 3. Human Translation (HT) Proofreading: Extensive experience in proofreading human translations for clarity and accuracy. 4. Quality Assurance (QA): Conducted thorough QA for multiple projects, ensuring top-tier quality and consistency. 5. French to English & Vice Versa: Proofread and QA’ed over 150,000 words, maintaining high standards and client satisfaction. I approach each project with a keen eye for detail and a focus on exceeding expectations. Feel free to check out my portfolio and client reviews to see the quality and scope of my work. Let’s discuss how I can support your next project!
    Featured Skill React.js
    HTML
    PostgreSQL
    MongoDB
    SQL
    JavaScript
    React
    CSS
    Web Development
    Audio Transcription
    Discord Bot Development
    Greek
    Translation
  • $40 hourly

    • 4.6/5
    • (4 jobs)
    I'm an experienced full-stack developer with a 13-year focus on Ruby on Rails. Having worked with remote teams, startups, and established companies, I deliver efficient and reliable solutions while emphasizing simplicity, testing, documentation, and strong communication. Eager to explore new projects and opportunities.
    Featured Skill React.js
    Front-End Development
    Linux System Administration
    Adobe Photoshop
    Ruby on Rails
    Amazon Web Services
    React
  • $40 hourly

    • 5.0/5
    • (7 jobs)
    I am a Senior Full-Stack Developer with 9 years of experience. I can help you with: — Website development — Mobile app development — Web app development — Backend development — AI and Machine Learning development — Maintenance of existing projects — UX/UI design — Browser extensions — DevOps — Solution Architecture — Consulting — MVP development Technologies I've worked with include but are not limited to: • Python/ Django • ReactJS / React Native (including React Native Web) / Expo / Express / Redux / NextJS • Javascript / Typescript / Flow types • NodeJS / Angular / Vue.js • MongoDB / SQL (MySQL / MariaDB / PostgreSQL) / Redis • OAuth2 / Keycloak / Auth0 / Cognito • Kubernetes / Helm / Docker / Ansible / Terraform / Amplify / Firebase • AWS / Azure / GCP / on premises • RESTful / GraphQL / OpenTracing / AMQP (RabbitMQ) In my opinion, the key to a successful project is clear communication, so I will make sure that both the objective and the terms of the project are clear to both of us and will always be available to you throughout our project. If you feel that we are a match - send me an invitation to the interview.
    Featured Skill React.js
    Natural Language Processing
    Machine Learning
    Artificial Intelligence
    C++
    MATLAB
    React
    Vue.js
    Ruby on Rails
    React Native
    Django
    Laravel
    Python
    JavaScript
    SQL
    Java
  • $60 hourly

    • 5.0/5
    • (14 jobs)
    Top 3% on Upwork | Fortune 500 & Inc. 5000 Contractor Specializing in: Startup Development (React, React Native, Django, Node.js) Internal Tool Creation (APIs, fraud prevention, AI integrations) SaaS Platforms (Stripe, Supabase, AWS, Twilio, Shopify) Why work with me? ✅ Serial Tech Founder: 15+ startups launched ✅ Full-Stack Expertise: Front-end to back-end, mobile to web ✅ Business-Driven Development: Not just code, but scalable solutions that drive growth What sets me apart: Adaptive Development Strategies for unique market challenges Clear Communication ensuring project clarity and client satisfaction Comprehensive startup experience with both tech skills and business know-how Recent Projects: Built fraud prevention system for tech startup, reducing chargebacks by 40% Developed user driven data analytics for Fortune 500 company, reducing their R&D costs 100x Created mobile app for survey tech startup, acquiring 150K+ users Happy to chat with other innovators and see how I can drive growth to your company!
    Featured Skill React.js
    API
    Progressive Web App
    Redux
    Web Application
    API Integration
    RESTful Architecture
    Sass
    Python
    React
    JavaScript
    Django
    Node.js
  • $35 hourly

    • 4.9/5
    • (32 jobs)
    Thank you for taking the time to explore my profile. Here's a quick overview of why I'm the right fit for your project needs: I bring a wealth of experience as a Javascript/Typescript/Blockchain engineer, with specialized skills in React, Next.js, Node.js, Tailwind CSS, SaSS, Redux, MongoDB, and Web3 for robust full-stack development. My expertise also extends to mobile app creation using React Native and Flutter. Known for my positive outlook and unwavering energy, I excel in maintaining clear communication in every scenario. Have designs ready in Figma, Adobe XD, InVision, etc.? I'm adept at turning those into flawlessly coded implementations. My journey includes co-founding and managing eclubs, a startup that has reached thousands of users in Athens. Additionally, I contributed significantly to another application that successfully secured $200K in funding, showcasing my ability to lead projects from idea to investment. My roles have varied across the board, from Project Owner on diverse tech ventures, CTO of two startups (AI), to Tech Lead on an NFT marketplace. These experiences have equipped me with a unique blend of skills, enabling me not just to code, but to strategically align technological solutions with business objectives. While I'm ready to align with your vision, I'm also prepared to suggest alternative strategies when I see an opportunity for improvement. How I Can Assist: - Crafting state-of-the-art web (using JamStack/React) or mobile apps, selecting the best technology (Flutter or React Native) based on your project's requirements. - Revitalizing, updating, or troubleshooting your existing applications. - Offering strategic advice and proposing potential enhancements to your project, drawing from my extensive background. - Converting your design concepts (in Figma, Adobe XD, InVision, etc.) into pixel-perfect code or enhancing existing designs. What to Expect Working with Me: 1) Constant availability and swift responses. 2) Immediate project commencement and rapid execution. 3) Full commitment to your project. 4) Deep industry insights. 5) Broad programming knowledge and experience in navigating the startup ecosystem. I'm eager to discuss how I can contribute to your app or business. Let's schedule a time for a video call or chat to better understand your project's needs, how I can cover all development aspects, or dive deeper into discussions about your project's inception, growth, or enhancements.
    Featured Skill React.js
    AI Development
    Web Development
    App Development
    Machine Learning Model
    React
    React Native
    Node.js
    HTML
    TypeScript
    SQL
    CSS 3
    HTML5
    JavaScript
    MongoDB
  • $35 hourly

    • 4.9/5
    • (21 jobs)
    A website is one of the biggest tools for your business to engage clients, so why not have the most attractive design possible for it ? My name is Nathaniel, i'm a Custom Website Developer & Webflow Expert , graduated from Nice Sophia-Antipolis University, French Native and currently based in Greece. ✅ 20+ Websites Developed ✅ 5+ years of working experience in Web Design and Front-end Development ✅ Skilled in Webflow - WordPress/WooCommerce/Elementor ✅ JavaScript & React Lover ✅ Skilled in Figma & Illustrator ◾What Can I Do For You ? ✅ Web Design/Front-end Development | Website Creation & Customization I'd be pleased to create, optimize and customize your website, with custom design and best UX/UI practices. ✅ Website Optimization You have bad results in GT Metrix / Page Speed Insight ? I can help you to improve your website and get a 85/90+ on GT Metrix. Make your website pretty fast to attract more visitors ! ◾Why Hire Me ? • I have flexible working hours • I am hardworking, reliable, and rigorous • I pay a lot of attention to detail, which is essential in Web Design Field • I work quickly which will save you time and money ◾TOOLS : ✔ WebFlow ✔ Wordpress/WooCommerce ✔ Elementor ✔ HTML5 ✔ CSS / Bootstrap / SCSS / Flexbox ✔ Javascript ✔ React / Gatsby ✔ Bootstrap / React Bootstrap ✔ Node.js (basic) / Express (basic) ✔ Git / GitHub / Gulp / Canva ⌚ 𝗔𝗩𝗔𝗜𝗟𝗔𝗕𝗜𝗟𝗜𝗧𝗬 I’m a full-time independent Web Designer. I'm always available to discuss your website requirements as well as work on your project. I'll respond to your message within 12 Hours. 📷 𝗣𝗢𝗥𝗧𝗙𝗢𝗟𝗜𝗢 You can check my portfolio below with various projects.
    Featured Skill React.js
    Figma to Webflow Plugin
    MERN Stack
    React
    Gatsby.js
    Website Optimization
    Webflow
    Framer
    Web Development
    WordPress
    HTML
    JavaScript
    Sass
    CSS
    Elementor
  • $100 hourly

    • 5.0/5
    • (15 jobs)
    🟢 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗹𝗲 𝗡𝗼𝘄 | 𝟭𝟬𝟬% 𝗣𝗶𝘅𝗲𝗹 𝗣𝗲𝗿𝗳𝗲𝗰𝘁 𝗮𝗻𝗱 𝗠𝗼𝗯𝗶𝗹𝗲 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝘃𝗲 🚀 Ready to Bring Your Vision to Life | 100% Responsive Design With over 10 years of experience in Web Development and Software Engineering, I specialize in creating high-impact, visually stunning websites that not only stand out but also deliver exceptional user experiences. I focus on providing tailored solutions that align with your business goals, ensuring your project is completed on time and to the highest standards. ✔️ 𝗪𝗵𝗮𝘁 𝗜 𝗢𝗳𝗳𝗲𝗿: 1. 𝗖𝘂𝘀𝘁𝗼𝗺 𝗪𝗲𝗯𝗳𝗹𝗼𝘄 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: From landing pages to full-fledged websites, I bring your designs to life with pixel-perfect precision. 2. 𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝘃𝗲 𝗗𝗲𝘀𝗶𝗴𝗻: Ensuring your site looks and works flawlessly on every device. 3. 𝗪𝗲𝗯 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: Building robust, scalable applications with seamless third-party integrations. 4. 𝗣𝗲𝗿𝗳𝗼𝗿𝗺𝗮𝗻𝗰𝗲 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻: Creating fast-loading websites that keep users engaged and improve SEO rankings. 5. 𝗙𝗥𝗘𝗘 𝗖𝗼𝗻𝘀𝘂𝗹𝘁𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝘆: Offering expert advice to help refine your ideas and achieve your digital goals. 🤔 𝗗𝗼 𝘆𝗼𝘂 𝗵𝗮𝘃𝗲 𝗮 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗶𝗻 𝗺𝗶𝗻𝗱? 👉 𝗖𝗹𝗶𝗰𝗸 [𝗜𝗻𝘃𝗶𝘁𝗲] 𝗮𝘁 𝘁𝗵𝗲 𝘁𝗼𝗽 𝗼𝗳 𝗺𝘆 𝗽𝗿𝗼𝗳𝗶𝗹𝗲, 𝗮𝗻𝗱 𝘄𝗲 𝗰𝗮𝗻 𝗷𝘂𝗺𝗽 𝗼𝗻 𝗮 𝗙𝗥𝗘𝗘 𝗰𝗮𝗹𝗹 𝘁𝗼 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝗶𝘁 𝗳𝘂𝗿𝘁𝗵𝗲𝗿! ✔️ 𝗪𝗵𝘆 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲? • 𝗣𝗿𝗼𝘃𝗲𝗻 𝗥𝗲𝘀𝘂𝗹𝘁𝘀: Over $1,000,000 in revenue generated for clients worldwide. • 𝗧𝗼𝗽-𝗧𝗶𝗲𝗿 𝗤𝘂𝗮𝗹𝗶𝘁𝘆: I prioritize clean, maintainable code with no bugs or security issues. • 𝗙𝗮𝘀𝘁 𝗧𝘂𝗿𝗻𝗮𝗿𝗼𝘂𝗻𝗱: Time is money—I work efficiently to get your project live as quickly as possible without compromising quality. • 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝘃𝗲 𝗣𝗿𝗼𝗰𝗲𝘀𝘀: I believe in clear communication and a collaborative approach, ensuring we’re always aligned with your vision. ✔️ 𝗠𝘆 𝗣𝗿𝗼𝗰𝗲𝘀𝘀: 1. 𝗗𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 𝗮𝗻𝗱 𝗣𝗹𝗮𝗻𝗻𝗶𝗻𝗴: We’ll start with a FREE consultation call to understand your goals and define the project scope. 2. 𝗗𝗲𝘀𝗶𝗴𝗻 𝗮𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁: I’ll transform your designs (or make the designs for you) into a fully responsive, high-performance website. 3. 𝗨𝗻𝗹𝗶𝗺𝗶𝘁𝗲𝗱 𝗥𝗲𝘃𝗶𝘀𝗶𝗼𝗻𝘀 & 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Rigorous testing ensures your site is bug-free and optimized for all devices before launch. Unlimited revisions are a MUST for this. 4. 𝗢𝗻𝗴𝗼𝗶𝗻𝗴 𝗦𝘂𝗽𝗽𝗼𝗿𝘁: Post-launch support to handle any updates, enhancements, or issues. ✔️ 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 𝗜 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵: • Webflow, HTML5, CSS3, JavaScript • Figma to Webflow, Adobe XD to Webflow, PSD to Webflow • Responsive Design, Bootstrap, CSS • API Integrations, CMS Development 🤝 𝗟𝗲𝘁’𝘀 𝗪𝗼𝗿𝗸 𝗧𝗼𝗴𝗲𝘁𝗵𝗲𝗿 🤝 In today’s fast-paced digital landscape, two things matter most: 𝗲𝘅𝗰𝗲𝗽𝘁𝗶𝗼𝗻𝗮𝗹 𝗾𝘂𝗮𝗹𝗶𝘁𝘆 and𝘀𝗽𝗲𝗲𝗱 𝘁𝗼 𝗺𝗮𝗿𝗸𝗲𝘁. I’m committed to delivering both. By combining meticulous attention to detail with a streamlined development process, I ensure that your project not only stands out but also launches quickly for maximum impact. To begin our collaboration on the right foot, I offer a 𝗙𝗥𝗘𝗘 𝗖𝗢𝗡𝗦𝗨𝗟𝗧𝗔𝗧𝗜𝗢𝗡 𝗖𝗔𝗟𝗟. Click 'Send Message' or 'Invite' at the top of my profile, and let’s discuss how I can turn your vision into a reality!
    Featured Skill React.js
    Business with 1-9 Employees
    Web Development
    Java
    Landing Page
    Ecommerce Website
    C#
    Front-End Development
    Angular
    Website Builders & CMS Consultation
    Back-End Development
    React
    Full-Stack Development
    Webflow
    CMS Development
  • $40 hourly

    • 5.0/5
    • (2 jobs)
    -Proficient Python Backend Developer with experience in designing and developing scalable APIs, microservices, and database systems. - Strong expertise in building RESTful services, optimizing backend performance, Docker and CI/CD pipelines. - Adept at writing clean, maintainable code with a focus on security, scalability, and efficiency, ensuring seamless collaboration with frontend teams.
    Featured Skill React.js
    DevOps
    Amazon S3
    Unix Shell
    React
    Django
    CI/CD
    RESTful API
    Web Scraping
    SQL
    Docker
    Community Moderation
    Hebrew
    Python
    Content Moderation
    Technical Support
  • $13 hourly

    • 4.9/5
    • (3 jobs)
    Hello there! I'm Ilias, a web developer with a strong foundation in computer science. I've been pursuing my studies at the Athens University of Business and Economics for the past few years. My skill set includes Java, JavaScript/TypeScript, Python, Rust, and Golang, which I've successfully applied in various jobs and personal projects. I specialize in Discord bot development, frontend and backend development, as well as crafting web scrapers/crawlers and general scripting. Thanks to my proficiency in these areas, I can offer clients top-notch web development services. If you have any questions or require further information, feel free to reach out!
    Featured Skill React.js
    Data Scraping
    ExpressJS
    React
    HTML
    Python
    JavaScript
  • $25 hourly

    • 5.0/5
    • (2 jobs)
    ’m Emmanouil Kremmidas, a passionate software engineer with over 3 years of experience specializing in full-stack development, building efficient backend systems, and working with cloud technologies. I focus on developing scalable, high-performance applications that meet your business needs, whether it’s creating robust APIs, microservices, or cloud-integrated solutions. What I Offer: Full Stack & Backend Development: Proficiency in .NET Core and C#, delivering reliable and scalable solutions for various industries. Cloud Integration & Scalability: Practical experience as a cloud practitioner mainly on Azure, building distributed systems that can scale seamlessly with growing demands. API & Microservices: Expertise in designing and developing APIs and microservices architectures for efficient, maintainable, and high-performance systems. Frontend Development: Strong skills in Blazor and Angular for creating responsive and user-friendly UIs. Database Design & Optimization: Skilled in SQL Server, MongoDB, and Redis, optimizing performance and ensuring smooth data flow between systems.
    Featured Skill React.js
    TensorFlow
    .NET Framework
    .NET Core
    ASP.NET Core
    REST API
    Software Architecture & Design
    Angular
    CSS
    Data Science
    Software Development
    Machine Learning
    Python
    Node.js
    C#
    React
  • $24 hourly

    • 5.0/5
    • (15 jobs)
    With over 4 years of experience delivering web solutions my expertise spans across both front-end and back-end development. Full Stack Expertise: Proficient in modern frameworks like Next.js, Node.js, and GraphQL, ensuring robust and dynamic applications. WordPress: Crafting custom WordPress themes, plugins, and optimizing WooCommerce stores for speed, functionality, and SEO. End-to-End Solutions: From development to deployment and maintenance, I handle all stages of web development. Feel free to reach out—I’m excited to collaborate on your next project!
    Featured Skill React.js
    WooCommerce
    WordPress
    Tailwind UI
    API
    Tailwind CSS
    ExpressJS
    NGINX
    TypeScript
    PHP
    Docker
    Next.js
    MongoDB
    MySQL
    Node.js
    React
  • $42 hourly

    • 3.8/5
    • (7 jobs)
    I'm a professional web developer (React JS) skilled with all the tools that are required for the development of high quality applications. I provide effective, bug-free apps with clean, easy-to-maintain code. Passionate, responsible and perfectionist are some of the qualities that describe me the best. I love what I do, and I feel fulfilled when the client is satisfied with my work. My skills: ✔️ React JS ✔️ Redux ✔️ Typescript ✔️ Webpack ✔️ SPA application ✔️ Front-End UI, Storybook ✔️ Lodash, Moment.js ✔️ Jest, Enzyme ✔️ Git ✔️ LESS, SASS, HTML, CSS, Bootstrap, BEM ✔️ HTML5, CSS3, Pug, Gulp ✔️ Agile, Scrum I like working on projects with a team that cares about creating beautiful and usable interfaces. It's important to me to build long-term relationships with clients, so I'm primarily looking for long term projects. My strong points are my creativeness and punctuality. I'm always ready to listen to the client to understand what they want in order to apply my skills appropriately. Looking forward to hearing from you soon, Andrey
    Featured Skill React.js
    React Native
    BEM
    Storybook
    Jest
    Moment.js
    Front-End Development
    React Bootstrap
    Material UI
    webpack
    TypeScript
    gulp
    JavaScript
    SCSS
    Redux
    React
  • $25 hourly

    • 5.0/5
    • (4 jobs)
    Hello, My name is Mike. I've been a full-stack developer having more than 4 years of experience in building web applications that match client needs. The client usually explains to me what they want to accomplish and I will explain the solution and develop it. I have developed several web applications from scratch but at the same time, I manage and update the client’s existing projects also as I have outstanding debugging skills. I'm very proficient in working with the following technologies: Technologies: React, TypeScript, Next.js, Nest.js, GraphQL, MongoDB, Prisma, Tailwind. My main goals when working with you are simple: - Clear and consistent communication. I make myself available during most business hours to provide status updates, answer and ask questions, and discuss the project. - Openness, trust, and friendliness have been the keys to success in my work. My customer's satisfaction is my utmost priority and I will not rest till you are satisfied! I am resilient and professional, and I will do my best possible work every time and for every task.
    Featured Skill React.js
    TypeScript
    Git
    Tailwind CSS
    GraphQL
    Redux
    React
    Material UI
    Sass
  • $39 hourly

    • 5.0/5
    • (1 job)
    As a versatile software developer, my expertise is deeply rooted in JavaScript, where I excel in creating scalable and sophisticated applications using TypeScript and React.js. My proficiency in socket.io further enhances my ability to craft dynamic and responsive user interfaces. In the world of PHP, I've contributed significantly with my open-source library, ExpressPHP, designed for rapid development in small to medium-scale projects. This library is a testament to my ability to deliver efficient solutions swiftly, ready for launch in mere days. My skills extend to Node.js, showcased in my innovative open-source projects like Turbo-Express-JS—an advanced alternative to ExpressJS known for its enhanced features and speed—and Awesome-Annotations, which revolutionizes JavaScript with intuitive annotations. SightScript, another one of my creations, demonstrates my skills in parsing, lexing, and tokenization, underlining my proficiency in scripting languages built on JavaScript. In addition to these, I have a solid foundation in Java and C#, where I apply robust Object-Oriented Programming (OOP) architectures. These OOP principles are seamlessly integrated into my JavaScript projects, ensuring a strong, maintainable codebase. I also specialize in REST API development and service integrations, with a particular focus on platforms like ServiceNow. My diverse skill set, passion for open-source development, and commitment to innovative and high-quality software solutions make me an ideal candidate for clients seeking exceptional software development expertise.
    Featured Skill React.js
    Socket.io
    Golang
    CSS
    Ruby on Rails
    NodeJS Framework
    C++
    Flutter
    React Native
    C#
    TypeScript
    Python
    PHP
    Java
    React
  • $25 hourly

    • 5.0/5
    • (12 jobs)
    I am an ex-Amazon, professional Software Engineer with a strong foundation building web services. My technical expertise varies arround multiple frameworks such as ASP .NET Core, Spring, Flask and Django for backend and React and Angular for front-end. I understand the importance of attention to detail and am committed to delivering high-quality results. I am excited to work with you to bring your project to life, even if it's a small one, I am confident that my skills and passion will help me to deliver great results.
    Featured Skill React.js
    RabbitMQ
    Redis
    Elasticsearch
    Amazon Web Services
    Docker
    React
    Angular
    .NET Core
    C#
    API
    Database
    Data Structures
    Blockchain
    Java
    Python
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    I’m a developer experienced in building web applications, front-end solutions, and mobile apps. Whether you need a new website, a robust web application, or enhancements to your current site, I can help. Proficient in JavaScript, HTML, CSS3, PHP, and WordPress Full project management from start to finish Fluent in English and Greek I create web applications and mobile apps using languages and frameworks such as: HTML, CSS, JavaScript React, React Native Next.js, Astro WordPress Let’s work together to bring your project to life!
    Featured Skill React.js
    iOS
    Android App
    Next.js
    SEO Performance
    Landing Page
    Web Application
    Mobile App
    React
    Product Development
    Website
    React Native
    Web Development
    Front-End Development
  • $39 hourly

    • 0.0/5
    • (0 jobs)
    𝐇𝐞𝐥𝐥𝐨! I am a dedicated freelancer with 8 years of experience in the betting and gaming industry, specializing in the design, development, and optimization of betting applications. Based in Greece, I bring a unique blend of technical expertise, industry knowledge, and a deep understanding of local and international betting markets. 𝘾𝙤𝙧𝙚 𝘾𝙤𝙢𝙥𝙚𝙩𝙚𝙣𝙘𝙞𝙚𝙨: ⬥ 𝐁𝐞𝐭𝐭𝐢𝐧𝐠 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Building robust, scalable, and secure applications. ⬥ 𝐔𝐬𝐞𝐫 𝐈𝐧𝐭𝐞𝐫𝐟𝐚𝐜𝐞 (𝐔𝐈) & 𝐔𝐬𝐞𝐫 𝐄𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞 (𝐔𝐗): Designing intuitive and engaging user journeys. ⬥ 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: Seamless integration of live data feeds, payment gateways, and third-party services. ⬥ 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞: Ensuring applications adhere to Greek and EU gambling regulations. ⬥ 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧: Enhancing app speed, reliability, and user engagement metrics. 𝙎𝙠𝙞𝙡𝙡𝙨 & 𝙏𝙤𝙤𝙡𝙨: ⬥ 𝐏𝐫𝐨𝐠𝐫𝐚𝐦𝐦𝐢𝐧𝐠 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬: Proficient in C#, Python, JavaScript, PHP,. ⬥ 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: React/Next, Angular, ASP.NET, and Laravel. Nuxt/Vue ⬥ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MySQL, PostgreSQL, Supabase, Firebase, Microsoft SQL Server and MongoDB. ⬥ 𝐓𝐨𝐨𝐥𝐬: Jira, GitHub, Docker, and cloud platforms (AWS, Azure). ⬥ 𝐀𝐧𝐚𝐥𝐲𝐭𝐢𝐜𝐬: Proficient in using tools like Google Analytics and Mixpanel to track and improve user engagement. 𝙒𝙤𝙧𝙠 𝙀𝙭𝙥𝙚𝙧𝙞𝙚𝙣𝙘𝙚 𝙃𝙞𝙜𝙝𝙡𝙞𝙜𝙝𝙩𝙨: ⬥ 𝐂𝐮𝐬𝐭𝐨𝐦 𝐁𝐞𝐭𝐭𝐢𝐧𝐠 𝐏𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Built and deployed a white-label betting application for a client, achieving a 300% increase in user base within 12 months. ⬥ 𝐌𝐚𝐫𝐤𝐞𝐭-𝐒𝐩𝐞𝐜𝐢𝐟𝐢𝐜 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐬: Designed localized solutions tailored to the Greek betting market, including currency support and language-specific functionalities. ⬥ 𝐑𝐞𝐚𝐥-𝐓𝐢𝐦𝐞 𝐃𝐚𝐭𝐚 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧: Integrated live odds, sports data feeds, and live streaming for a comprehensive betting experience. ⬥ 𝐑𝐞𝐠𝐮𝐥𝐚𝐭𝐨𝐫𝐲 𝐂𝐨𝐦𝐩𝐥𝐢𝐚𝐧𝐜𝐞: Successfully navigated complex regulatory landscapes, ensuring full compliance with Hellenic Gaming Commission standards. ⬥ 𝐌𝐨𝐛𝐢𝐥𝐞 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧: Redesigned an existing application for mobile platforms, increasing mobile user retention rates by 45%. 𝐀𝐯𝐚𝐢𝐥𝐚𝐛𝐢𝐥𝐢𝐭𝐲: I am available to work remotely or on-site in Greece, depending on your project's requirements. I’m open to both short-term and long-term collaborations, always prioritizing on-time delivery and exceptional quality. 𝐋𝐞𝐭’𝐬 𝐖𝐨𝐫𝐤 𝐓𝐨𝐠𝐞𝐭𝐡𝐞𝐫! Ready to create or enhance your betting application? Let’s connect and discuss your vision. Together, we’ll bring it to life! ► Please use these Keywords to find me: Casino, Sports Betting, Bookmaker, Odd managing, HTML, CSS, JavaScript, React.js, Next.JS Angular.js, Vue.js, Svelte, Bootstrap, Tailwind CSS, Material UI, Shadcn UI, jQuery, AJAX, JSON, RESTful APIs, GraphQL, WebSockets, WebRTC, ES6+, TypeScript, Babel, Webpack, Gulp, NPM, Yarn, Node.js, Express.js, Next.js, Nuxt.js, Redux, MERN, React Native, React Native CLI, React Native Expo, Flutter, iOS SDK, Android SDK, Ionic, React Ionic, Firebase, AWS Amplify, Azure App Services, Google Cloud Platform (GCP), Docker, Kubernetes, Jenkins, Git, GitHub, GitLab, Bitbucket, CI/CD, MongoDB, MySQL, PostgreSQL, SQLite, Redis, DynamoDB, Firebase Realtime Database, Supabase, AWS RDS, SQL, NoSQL, Graph Databases, Elasticsearch, Prisma, Sequelize, Mongoose, PHP, Laravel, Symfony, Ruby on Rails, Django, Flask, Go, Python, Web Components, PWA (Progressive Web Apps), SEO (Search Engine Optimization), SSR (Server-Side Rendering), TDD (Test-Driven Development), Unit Testing, Jest, Mocha, Cypress, Browser DevTools, Figma, Adobe XD, Wireframing, Prototyping, Responsive Web Design, Cross-Platform Mobile Development, Progressive Enhancement, Security Best Practices, OAuth, JWT (JSON Web Tokens), OpenAI, Front-end development, Back-end development, Mobile app development, C#, C#, C#, .NE T.NET. NET. NET. Blazor, Blazor, Blazor, Blazor,
    Featured Skill React.js
    Payment Gateway
    Next.js
    ASP.NET Web API
    HubSpot
    CI/CD
    HighLevel
    Docker
    Azure DevOps
    Architectural Framework
    CMS Framework
    CRM Automation
    Blazor
    .NET Framework
    React
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    I'm an intermediate Software Engineer with a passion for understanding the full product lifecycle, from coding to market demands and client needs, to deliver truly impactful solutions. With a strong foundation in C# and .NET, I specialize in developing efficient, scalable software that solves real-world problems. My experience spans across various technologies, including Blazor, REST APIs, and database systems, always with a focus on creating value for both the client and the end user. I’m constantly eager to learn new technologies and concepts, driven by a curiosity to understand the “why” behind what I build. I thrive in collaborative environments where cross-functional insights are key to delivering successful projects. Let’s connect to explore how I can bring a comprehensive, market-oriented approach to your team.
    Featured Skill React.js
    Web Development
    Web Application
    Software Development
    React
    Blazor
    REST API
    SQL
    C#
  • $40 hourly

    • 0.0/5
    • (0 jobs)
    👋 Hi Welcome to my Profile! I am Luca I am a highly motivated fullstack developer with three years of experience and a strong focus on front-end development and UX. I bring a high level of initiative, reliability, and passion to every project. With nearly nine years of design experience, I take a user-centered approach to creating engaging interfaces. I thrive on learning, pushing creative limits, and am always eager to tackle new challenges. My key strengths include problem-solving, meeting deadlines, and maintaining a strong work ethic. I am highly motivated, creative, and detail-oriented. My focus has always been on user-friendliness, code reusability, and Clean Code & Architecture principles. 💪𝗠𝘆 𝗦𝗸𝗶𝗹𝗹𝘀 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀 & 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀 React (with Hooks) · TypeScript · JavaScript · HTML5 · CSS3 · Node.js · Express · React Native · Vue.js 𝗦𝘁𝗮𝘁𝗲, 𝗦𝘁𝘆𝗹𝗶𝗻𝗴 & 𝗗𝗮𝘁𝗮 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 Zustand · TailwindCSS · React Tanstack Query · Axios · Sass/Scss · Pinia 𝗧𝗼𝗼𝗹𝘀 & 𝗜𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 GitHub · Google Cloud Platform (GCP) · Firebase · Cloud Functions · Jest · React Testing Library 𝗗𝗲𝘀𝗶𝗴𝗻 𝗮𝗻𝗱 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻 Figma · Adobe Suite · Jira · Confluence · Office 365 · Scrum · Trello 💼 𝗠𝘆 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀: Design & Prototyping · Creation of Websites & Web Application · App Development 🚀 Why Choose Me? ✅ Experienced & Versatile – 3+ years in fullstack development, 9+ years in design. ✅ User-Focused – I craft intuitive, engaging, and functional interfaces. ✅ Clean & Scalable Code – Following best practices for maintainability. ✅ Reliable & Deadline-Driven – Committed to quality and timely delivery. ✅ Strong Collaboration – Proficient with Jira, Confluence, Figma & Agile workflows. ✅ Always Learning – Up-to-date with the latest tech and trends.
    Featured Skill React.js
    Tailwind CSS
    CSS
    HTML
    Vue.js
    Web Development
    App Development
    Figma
    SCSS
    Google Cloud Platform
    Node.js
    Jest
    React Native
    TypeScript
    JavaScript
    React
  • $25 hourly

    • 5.0/5
    • (5 jobs)
    Hi my name is Anatoliy Molodechkin (English translation is Andy). I have more then 9 years of experience as the web developer. Most of my works are eCommerce projects. I've made more then two hundred web sites for the past nine years. I prefer to work with OpenCart and Wordpress CMS. I have a good knowledge of CodeIgniter, jQuery and Bootstrap frameworks. I believe my strong points are my Creativeness and Punctuality. My #1 goal will always be to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I’m honest and fair. I have a Bachelors in Software Engineering from Kiev National Technical University, in the Ukraine. Listed below are my experience and skills. -PHP, JavaScript, HTML5, CSS3, SQL -OpenCart, Wordpress -CodeIgniter, jQuery, Bootstrap -PSD, Figma
    Featured Skill React.js
    CodeIgniter
    OpenCart
    HTML5
    CSS 3
    WordPress
    CSS
    PHP
    JavaScript
    Google Merchant Center
    React
    HTML
    MySQL
    Google Shopping
    MVC Framework
  • $35 hourly

    • 0.0/5
    • (0 jobs)
    Hello, Thanks for visiting my profile. :) I'm a Full Stack Web Developer with experience building out both consumer and startup applications, including web, mobile and desktop applications with the latest technologies. Technologies I work with: Front End: -- React, React Native, React-Redux, React-Router -- Next.js -- Redux-Saga, Redux-Thunk -- AngularJS, Angular2+ -- Vue.Js, Vuex, Nuxt.Js, Quasar Framework, Vuetify, Vue material UI -- HTML5, CSS and ES6/7 JavaScript -- CSS Preprocessors: SASS, LESS -- Bootstrap and Material UI -- Shopify, Magento, Wordpress Back End: -- Node.js with Express -- Python with Django Framework -- PHP with Laravel Framework -- Java Testing: Mocha, Jest Database: PostgreSQL, MongoDB, MySQL, SQLite Cloud Services: Amazon Web Services, Digital Ocean, Heroku The results are solutions that consistently meet my clients needs and exceed their expectations. Thank you.
    Featured Skill React.js
    Redux
    Shopify
    Vue.js
    Shopify Plus
    Shopify Apps
    WordPress Plugin
    React Native
    WooCommerce
    Redux Saga
    Vuetify
    Redux Thunk
    WordPress
    Shopify Theme
    React
    Laravel
  • $18 hourly

    • 0.0/5
    • (0 jobs)
    I'm a passionate developer with experience in building big ,scalable, User-Friendly and easy maintained mobile and web applications. I have strong experience in every part of the application development . From an idea to cash. Technologies I use : React js ,React native , Node js and flutter. Professional experience : Frontend Developer | EY July 2023 – Present • Built advanced React web add-ins for Microsoft Word and Outlook with dynamic, responsive interfaces. • Utilized Microsoft JavaScript API to create deep integrations, enhancing functionality within the Microsoft 365 suite. • Optimized add-ins for seamless cross-platform performance and compatibility with multiple Office versions. • Collaborated with teams to design custom workflows, extending Word and Outlook with third-party integrations. Technologies/Tools: React, Redux, Redux Saga, Typescript, Microsoft’s JavaScript api. Frontend & mobile Developer | LogiSnap March 2022 – May 2023 • Developing LogiSnap's operation administration panel using React along with Redux and Redux Saga. • Using React's latest tools in a complex and dynamic UI managing multiple logistic companies' configurations and products (DHL, Fedex etc). • Engineered LogiScan, the company’s mobile app, leveraging React Native for scanning parcels and collecting data. • Implementing Cypress on our fronted Admin panel, fortifying our flows and setting the standards on E2E testing. Technologies/Tools: React, Redux, Redux Saga, Cypress, React Native, Expo, Typescript, Microsoft’s Fluent Ul, git, Azure, Visual Studio Code. Founder & Full-Stack Developer | Athens pockeTour 2024 • Developed and launched Athens pockeTour, a cross-platform mobile app offering personalized tours and local experiences in Athens. • Built the app using Flutter for seamless functionality across Android and iOS platforms. • Designed a React.js admin panel for managing app data, generating QR code licenses. • Integrated Firebase for secure authentication, real-time updates, and automated backend processes (e.g., license generation, notification triggers). Technologies/Tools: Flutter, Dart, React.js, Firebase (Authentication, Firestore, Cloud Functions (JavaScript), Cloud Storage), QR Code APIs, Figma.
    Featured Skill React.js
    App Development
    Mobile App
    Mobile App Development
    Flutter
    React
    React Native
    Node.js
    Android App Development
  • $6 hourly

    • 0.0/5
    • (1 job)
    I'm a full-stack developer with experience in Blockchain Dapps. I'm here to work with new people and enhance my capabilities. As a developer I have expertises with HTML5, CSS3, Node.js and Java. Also expertise with React.JS, Angular.JS frameworks. Eager to collaborate with new teams
    Featured Skill React.js
    React
    Python
    JavaScript
    Node.js
    Ethereum
    Blockchain Architecture
    API Development
    HTML
    API
    Scala
    MongoDB
    Blockchain
    SQL
  • $15 hourly

    • 5.0/5
    • (1 job)
    DIMITRIOS G. KACHROS - Software Engineer * Strong communication abilities, both in oral and written format. * Fluent in multiple programming languages. * Quick learner with a strong interest in the financial and investing field
    Featured Skill React.js
    API
    Software Testing
    React Native
    React
    Git
    HTML5
    JavaScript
    Bootstrap
    CSS
    Azure DevOps
    Agile Software Development
  • $15 hourly

    • 0.0/5
    • (1 job)
    Hi, I’m Giannis, a dedicated Web Developer and Next.js Specialist. I have been building modern and scalable web applications for over 5 years. I specialize in creating web applications using Next.js and React, helping businesses create fast, responsive, and user-friendly platforms. 𝐖𝐡𝐚𝐭 𝐈 𝐎𝐟𝐟𝐞𝐫: Development of fast and scalable web applications using Next.js and React.js Responsive UI/UX design powered by Tailwind CSS API integration and third-party service implementation Performance optimization and debugging for better functionality Custom solutions tailored to your business needs 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞? I’m committed to delivering on-time, high-quality results Strong communication ensures we're always on the same page Flexible and detail-oriented to meet your specific requirements Fᴏᴄᴜsᴇᴅ ᴏɴ ᴛʜᴇ sᴜᴄᴄᴇss ᴏғ 𝐘𝐎𝐔𝐑 ʙᴜsɪɴᴇss Let’s work together to bring your ideas to life! Feel free to reach out—I’d love to hear about your project and how I can help.
    Featured Skill React.js
    Sass
    CSS
    SQL
    Mobile App
    Software
    Python
    Back-End Development
    Front-End Development
    Full-Stack Development
    Node.js
    JavaScript
    Web Application
    React Native
    React
    Next.js
  • $25 hourly

    • 0.0/5
    • (0 jobs)
    I’m a Full-Stack developer with 8+ years of experience who loves working with clients to bring their ideas to life in a way that’s fast and efficient. I am highly organized and detail-oriented and I have a thorough understanding of the ins and outs of the platforms. Skills: • CMS: Wordpress, Webflow, Wix, Shopify, Squarespace • Frameworks: React, NodeJs, Angular, VueJs, NextJs, JQuery, Django, Laravel • HTML/CSS/SASS • JavaScript • Python • PHP • SEO • AJAX • SQL, mySQL • JSON
    Featured Skill React.js
    Python
    Flask
    MySQL
    SQL
    Vue.js
    Node.js
    Angular
    React
    jQuery
    UX & UI
    PHP
    JavaScript
    CSS
    HTML
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a React.js Developer near Athens, on Upwork?

You can hire a React.js Developer near Athens, on Upwork in four simple steps:

  • Create a job post tailored to your React.js Developer project scope. We’ll walk you through the process step by step.
  • Browse top React.js Developer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top React.js Developer profiles and interview.
  • Hire the right React.js Developer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a React.js Developer?

Rates charged by React.js Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a React.js Developer near Athens, on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance React.js Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream React.js Developer team you need to succeed.

Can I hire a React.js Developer near Athens, within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive React.js Developer proposals within 24 hours of posting a job description.

Looking to hire for long-term or full-time assignments? See how Full-time hiring on Upwork simplifies the process.