The Best React.js Developers For Hire In Costa Rica

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

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$35 hourly
- 4.8/5
- (41 jobs)
Figma, AdobeXD, Sketch, Photoshop HTML5, CSS (Scss, Less, Sass), Bootstrap, TailwindCSS, Bulma Javascript, AngularJS, Angular, TypeScript, ReactJS, NextJS, VueJS, jQuery, GraphQL PHP (MVC/OOP), ASP.NET MVC (C#), JAVA WordPress, Headless WordPress with Next.js * Responsive Design * Cross Browsing (IE7 +, Edge, Chrome, Firefox, Safari) * Git

React.js
Figma
Bootstrap
Tailwind CSS
HTML5
CSS 3
Vue.js
JavaScript
Next.js
React
Angular
Material UI
Ember.js
$38 hourly
- 4.9/5
- (15 jobs)
✓ CMS solutions: Wordpress, CodeIgniter, Magento ✓ eCommerce: Shopify, Magento, WooCommerce, Ruby on Rails ✓ Front-end Frameworks: React.js, Redux, Angular 2 ~7, Vue.js, jQuery ✓ Back-end Frameworks: Node.js, Laravel, Codeigniter, Django, GraphQL ✓ Languages: PHP, Python, FFmpeg, JavaScript, TypeScript, ASP.Net ✓ DevOps: Amazon web services, Google Cloud Platform, Docker ✓ Project & Source Management: Attlasian Jira, Git, SVN, Bitbucket ✓ Database: MySQL, MongoDB, Firebase With well over 100,000 firms offering website development services, I know how challenging it can be to find the right developer for your web development needs. I hold one goal above all others: 100% client satisfaction. I uphold the highest standards for project planning and execution, and I am dedicated to building the perfect website for your company on-time and on-budget. I have built websites for several brands around the world with great success, and are quite excited to get to work on yours. I'd love to talk more with you about your needs. Thank you for your time. I look forward to hearing from you. Claudio L.

React.js
FFmpeg
PHP
JavaScript
CSS 3
React
HTML
AngularJS
Python
Laravel
WordPress
$40 hourly
- 5.0/5
- (5 jobs)
Hello, this is Hillary. I am a professional application developer and have been working in this field for +3 years. I have already made a lot of quantity of applications by C#. I have a solid knowledge of programming and OOP. I am also skillful in problem-solving methods and acquainted with computer languages like Python, PHP, CSS, XML, HTML, HTML5, SQL, Javascript, and Photoshop. Besides, for my base knowledge, I often made some applications by C/C++. Again, I keep myself up to date with new technologies and its uses, new tools, and computer languages so that I can give my level best to my clients.

React.js
Xamarin
React
Image Processing
ASP.NET
C#
Python
C++
Qt Framework
$80 hourly
- 5.0/5
- (7 jobs)
I'm a full-stack SR developer with over 10 years of experience and most recently focusing on Web3 integrations and pixel-perfect frontend development using mostly React, WordPress, Node, Strapi or PHP/Laravel depending on requirements. I am very confident in my skills and am sure I can do pretty much anything frontend-wise, as well as being very proficient in backend. Although I have my own agency, I am available here as a freelance developer. But through my company, 5e Labs, I can also provide additional devs with similar expertise and very good UX/UI designers. Co-Founder of 5e Creative Labs, a web and software development agency located in San José, Costa Rica. Focused mostly on above technologies: Web3 integrations, AI, Node, React, Laravel and WordPress. Also co-founded eTax, a VAT compliance and electronic invoicing SaaS which was acquired in 2020. In terms of Web3 integrations, I have experience with blockchain development, building NFT marketplaces, NFT generators with bulk minting, auctions, etc. I have worked with a range of technologies, including Ethers.js, Web3.js, Polygon, Ethereum, Deso, among others. As a developer, I take pride in my ability to deliver high-quality, pixel-perfect solutions that meet my clients' needs. I also like to stay up to date with the latest technologies and trends in the industry, so I can quickly learn pretty much anything dev-related.

React.js
NFT Marketplace
web3.js
Node.js
WordPress
Web3
Software Development
Laravel
Mobile App
Project Management
Blockchain, NFT & Cryptocurrency
WebGL
DApps
React
NFT
Web Development
Vue.js
Blockchain
$50 hourly
- 5.0/5
- (2 jobs)
Currrently involved on projects based on Angular, Node and Sql database. In all my developer career always had to challenge my self learning different frameworks and technologies according to the projects needs.

React.js
Angular
JavaScript
Node.js
SQL
C#
React
$80 hourly
- 5.0/5
- (1 job)
Full Stack developer with eighteen (18) years of experience in software development. Skill in software design and construction techniques at the frontend and backend levels, UX (user experience) and UI (user interface) using the Scrum methodology. Professional committed to research, innovation and teamwork.

React.js
Docker
RESTful API
Ruby on Rails
Agile Software Development
HTML5
JavaScript
Angular
PostgreSQL
Amazon Web Services
TypeScript
MongoDB
React
MySQL
Swift
PHP
$95 hourly
- 5.0/5
- (14 jobs)
Top-1% Talent vetted by Upwork Software Architect with 10+ years of software development experience, a deep understanding of the market and the latest technologies. Highlights: 📈>$1.2M saved with automations and custom software 📈20x Speed optimizations in business and software processes 📈 +90% accuracy achieved in Computer Vision systems 📈 10x ROI brought to Insurance Agency, saving +150 weekly hours I look to work with professional long-term minded people, to create great products and relationships together. About you: - You’re looking for highest-quality custom development or automation for your business or venture - You want someone who can to tackle your business and technical needs and transform them into results and growth - You have a long-term vision about your business and like to form productive and professional relationships About me: I've worked with 🏢 Big enterprise companies: Intel and Apple 💳 Fintech companies: Self.inc Financial 🛠 Hard-tech and IoT startups: Remora, Gridger, Mangrove 👨🏻‍💻 E-commerce and agencies Specialized In: - Generative AI Development (GPT-3, ChatGPT, OpenAI, HuggingFace) - Natural Language Processing (NLP, Text classification, summarisation, NER) - Backend development & Automation Systems - Computer Vision systems ------------------------------------------------------------------------------- – TECH STACK – Data 📄 - Storage: SQL, MongoDB, Vector DBs - Processing: Python, NumPy, Pandas, SpaCy AI 🤖 - Python Libraries: Scikit-learn, TensorFlow, PyTorch, HuggingFace, LangChain - Language Models: GPT, LLaMA, BERT, HuggingFace Low-Code ✏️ - Low-Code Development Platforms: Bubble, Botpress, Stack-AI, make, zapier Web Development 🌐 - Frontend Development: HTML, CSS, JavaScript, React - Backend Development: REST APIs, Python, Flask, FastAPI, Webhooks, serverless Infrastructure ☁️ - Cloud Services: AWS, Google Cloud, Digital Ocean - Containers & Orchestration: Docker, ECR -------------------------------------------------------------------------------- Ready for your next level? Hit the invite button for a free consultation worth $300+ today

React.js
Data Analysis
Natural Language Processing
Data Analytics
Machine Learning
Python
React
Full-Stack Development
Software Architecture & Design
Computer Vision
Custom Web Design
Web Development
WordPress
Web Design
$40 hourly
- 5.0/5
- (22 jobs)
① Wix Official Expert, from the Wix Marketplace ② Expert developer on Velo(Wix code), Shopify. ③ Mobile expert developer ( iOS, Android ) ④ Certified UI/UX (user interface and user experience) Professional skills: Version control: Git, Github, Bitbucket WEBSITES: Wix, Shopify. WEB APPLICATIONS: Corvid(Wix Code), JavaScript, NodeJS, ReactJS, HTML, CSS, Python, custom algorithms. MOBILE APPLICATIONS: ThunkableX, React Native, Kony Mobilize. Back-end: Corvid NodeJS. I have been building web and mobile applications for over 10 years. I'm an expert Programmer and Designer I cover, widgets, apps, Design, eCommerce, onsite SEO, integrations, user experience, user interface, databases, business logic, custom algorithms, login system, back-end, front-end, dashboard, etc. ---- If you are looking to develop a new project from scratch or update your current project for a reasonable price, I'm the developer for you! I really want to help you resolve your current challenges and make your site/app as successful as possible! I have a B.S. in Engineering, so I utilize my background in Mathematics and Physics to solve your problems and make your project a complete success!

React.js
JavaScript
Node.js
Temenos
Weebly
Android App Development
Wix
Web Development
iOS Development
React
Python
$30 hourly
- 4.9/5
- (12 jobs)
I am Fabs, a Lead Product Designer with over 8 years of experience collaborating with startups and mid-sized companies across the globe. My expertise lies in helping founders bring their visions to life by creating innovative digital experiences and developing top-tier products. I have a deep understanding of various industries, including SaaS, healthcare, finance, crypto, and B2B products. I specialize in Figma, UX research, UI design, and strategic design. My approach combines a keen eye for detail with a focus on user-centered design principles to ensure that every product not only meets business goals but also delivers an exceptional user experience. Feel free to reach out if you'd like to collaborate.

React.js
UXPin
UI/UX Prototyping
Adobe XD
User Experience Design
UX Writing
UX & UI
Sketch
Adaptive Web Design
React
Rapid Prototyping
Figma
$59 hourly
- 5.0/5
- (1 job)
Major skills; - React.js - Node.js - Ruby on Rails - Blockchain - Ethereum, Tron, Waves, EOS You can use my above skills to make your purpose to be real. The most amazing thing in my business, was the development of a blockchain platform called CryptoAdvance. This platform provided users to participant in block validation without any deep knowledge of technologies, so anyone can play on the platform. I've devoted my blockchain & cryptography knowledges in this project by the way of writing code in Javascript, Golang, Solidity.

React.js
Ethereum
Blockchain
TRON
CSS
Node.js
JavaScript
Ruby on Rails
HTML
React
$50 hourly
- 3.0/5
- (1 job)
Does the code for your project look something like this: v̸̭͉̣͂̎̚ạ̴̮͒ŕ̴̖̪͌i̴̖͒å̵̙̕b̸͔̯͌̂l̵̖̗̽̊ē̴̠̳͘ ̵͚͓̰̉=̵̹̠͒̽ ̷̱͈̆̓x̴̗̬̪͛;? You have tried one or two cheap developers that learned how to code on YouTube, but they didn't do a great job. Let's face it, you need a problem solver with social skills that go beyond the requirements you have listed. Do a favor for your project and hire a Tech Lead with experience who will get the work done once and for good. Contact me, and let's have a free consultation meeting. I’ll be happy going to war with you. Let’s rock!

React.js
Scrum
Jira
Figma
HTML
AWS Lambda
MongoDB
PostgreSQL
MySQL
NestJS
Java
Python
Angular
JavaScript
Node.js
React
$38 hourly
- 1.4/5
- (1 job)
I have been programming for over 7. My main area of expertise is web development with the focus on backend and frontend, infrastructure part. In details, I have experience working with Python web frameworks like Django, Pyramid, Flask, Falcon API. As database, I have been using both relational(MySQL, PostgreSQL) and no-SQL(redis, MongoDB). I was involved in a few projects that used webscrapping as a source of data, so I&#39;m familiar with libraries like Scrapy, Beautiful Soup or Selenium. I also build custom frontend solutions and can bring your provided mark-up to life with pixel-perfect precision. I have built front-end solutions in Vue.js, React.js, AngularJS, Angular (2 - 9). I have built custom HTTP services in Vue.js and Angular, and I have provided extensive consultation on Node-based projects. Below are my main skillsets : - React.js/React-native/Redux - Angular 2-10 (Angular CLI, Redux, Bootstrap, nebular theme, a lot of ng2 libs) - Vue.js/Vuex/Vue-router/Vuetify - PHP frameworks and Node.JS API development - Python/Django API development (Python 2.7 ~ 3.x, Django, Django rest api, Flask, Falcon) - DataBase (MySQL, PostgreSQL, MongoDB, Redis) - Build tools (gulp, webpack, npm, yarn, grunt) - Git (GitHub and BitBucket) and SVN If you have an idea, or a clear vision of your application functionality and need assistance to translate it into a real-life product, I&#39;m ready for you.

React.js
Docker
Angular 6
API Development
Laravel
Django
Flask
React
JavaScript
Python
PostgreSQL
$30 hourly
- 5.0/5
- (4 jobs)
I like grabbing the hardest tasks, assign them back to me and surely would get it done. here to take new challenges every day.

React.js
React
SQL
Java
$30 hourly
- 4.6/5
- (7 jobs)
I am a developer with experience in desktop application development for your business automation and industrial measurements - I can help. - Familiar with C++/C# and can build any windows and linux application. - I can create any GUI and engine you want with WPF/.NET, QT/QML, or PyQT/PySide. - Build and provide various machine vision and image processing engines using deep learning and image processing. I can work for you with full-stack whatever you want. I’ll fully project manage your brief from start to finish Regular communication is really important to me, so let’s keep in touch! Thanks & Regards

React.js
Golang
Next.js
React
Windows Presentation Foundation
QML
Qt Creator
Desktop Application
Web Development
C#
Image Processing
Machine Learning
Python
Deep Learning
C++
OpenCV
$30 hourly
- 5.0/5
- (2 jobs)
Full Stack Mid Developer, with experience in building websites applications, I have worked in several projects where I was involved in the development of front-end components, and back-end features in different REST APIs.

React.js
AWS Development
Contentful
SQL Programming
.NET Core
Redux
AWS Amplify
ExpressJS
Next.js
Gatsby.js
Angular
Node.js
Docker
MySQL
React
$26 hourly
- 5.0/5
- (24 jobs)
I have extensive experience in implementing security systems systems (video surveillance, access control systems, fire and burglar alarms); - Implemented more than 1000 objects, where I developed software to integrate security systems into corporate ERP (CRM) software - Successfully finalized or created from scratch software products (for video surveillance); Able to work with TCP, DHCP, IP, RTSP, UDP, RTP; AHD, HD-SDI; ONVIF; h.264, h.265, h.265+; - In my work I use JS, TypeScript, PHP, GO, sometimes Python (Vue.js, Angular, Laravel, Django). I work with Firebase, MySQL, PostgreSQL, MongoDB. - Configured a large amount of various IP equipment Video control: HIKVISION, DAHUA, AXIS, SAMSUNG, PANASONIC, SONY (cameras); Trassir, HIKVISION (HikCentral), Milesight VMS, Mobotix, Video Insight, Avigilon, Ivideon, Milestone XProtect (software); Access control system: HIKVISION, Perco, ZKTeco, Nedap (software and equipment);

React.js
Technical Project Management
Python
Django
Bootstrap
Implementation Plan
System Automation
React
English
PHP
JavaScript
Web Design
Process Infographics
Vue.js
Autodesk AutoCAD
Tech & IT
$50 hourly
- 3.1/5
- (2 jobs)
About me I am a person passionate about technology and programming. Every new challenge that I have I give my best and I like to be able to collaborate in whatever way I can. I like meeting new people because I can always learn something.

React.js
Docker
RESTful API
Vue.js
DevOps
Golang
Laravel
GraphQL
Java
PHP
JavaScript
Node.js
Swift
React
React Native
PostgreSQL
$15 hourly
- 5.0/5
- (2 jobs)
Are tight deadlines and overwhelming workloads slowing down your web projects? Let me step in and lighten the load. With extensive experience in React.js, Next.js, and other frontend technologies, I help teams deliver sleek, functional, and scalable web applications. If you're looking for a reliable partner to turn your vision into a reality or simply need extra hands to push your project across the finish line, let’s connect! 1. Responsive Web Design and Development 2. Custom UI/UX Design Implementation 3. Create websites and web apps from scratch with ReactJS/NextJS 4. Cross-Browser Compatibility Optimization 5. Integration of APIs and third-party services 6. Conversion of Figma or Sketch Designs to HTML/CSS 7. Performance Optimization for faster loading times My attention to detail, passion for creating pixel-perfect sites, and dedication to staying up-to-date with the latest web technologies ensure that your project is in capable hands. I'm excited to take on new challenges and deliver top-notch results for your web development needs. Let’s get started – message me today!

React.js
MongoDB
ExpressJS
Node.js
TypeScript
JavaScript
Bootstrap
Tailwind CSS
Sass
CSS 3
HTML
UX & UI
Next.js
React
Front-End Development
Web Development
$50 hourly
- 0.0/5
- (2 jobs)
I'm a Senior Front-End Developer with ample experience building websites of all sizes and types. Whether you're looking for a simple portfolio website for your services, sell your products online or just announce yourself to the world, I can help you make your ideas into a reality. Here's what I can do for you: - Build simple HTML/CSS pages or use either React or Angular to set up a more complex project structure. - Use Design Thinking to get to know your users and then turn their ideas and needs into an actual website - Lead a group of front-end developers or even assist back-end developers with architecture

React.js
PHP
API Development
Angular 4
MySQL
GraphQL
NodeJS Framework
Handlebars
CSS 3
Next.js
React
JavaScript
Front-End Development
$75 hourly
- 5.0/5
- (1 job)
His skills in software development let him guide clients. He is an expert in web and mobile apps. He helped them from strategy to a successful launch. This ensures solutions that are both innovative and sustainable. Andrés can help you. He can modernize legacy systems, launch new digital products, or optimize development processes. He provides strategic insight and technical leadership. Let's Talk About Your Project: Schedule a 30-minute call to discuss your goals. We'll explore how my skills can help your business.

React.js
Adobe Illustrator
Figma
React Native
Adobe Photoshop
Material UI
Tailwind CSS
Redux
Node.js
Vue.js
Next.js
React
JavaScript
$35 hourly
- 0.0/5
- (0 jobs)
Experienced JavaScript Developer with over 5 Years in Web Application Development I specialize in building high-performance web applications using React and Node, ensuring code cleanliness and optimal resource utilization.

React.js
GraphQL
Figma
Next.js
Tailwind CSS
TypeScript
Git
SQL
MongoDB
React
JavaScript
Responsive Design
Node.js
Web Application
$40 hourly
- 0.0/5
- (0 jobs)
As a skilled full-stack and blockchain developer, I offer a strong combination of front-end, back-end, and blockchain skills, focusing on developing scalable, efficient, and user-centered web and blockchain applications. My expertise encompasses technologies such as JavaScript, TypeScript, React, Vue.js, Next.js, Gatsby, Node.js, Express.js, ASP.NET, Python, Solidity, Web3.js, and Django. I am dedicated to ongoing learning, teamwork, and making significant contributions to innovative technology projects.

React.js
C#
Python
Tailwind CSS
AWS Amplify
web3.js
Solidity
Django
ASP.NET
Laravel
TypeScript
JavaScript
Vue.js
Node.js
Next.js
React
$67 hourly
- 0.0/5
- (0 jobs)
Senior Fullstack Engineer Technically-mined professional with progressive experience establishing and increasing performance of user-centric, high-impact websites in a challenging environment. AREAS OF EXPERTISE * Well-versed in managing complex multiple on-time, maintaining back- (NodeJS) and front-end web applications using REST/SOAP services, conducting A/B testing, and executing React and Angular 2+ with Redux/NgRx pattern. * Adept at leading cross-functional teams in development, documentation, and delivery of process innovations while driving the attainment of business objectives. * Solid history of using detailed knowledge of diverse APIs, CI/CD and Devops skills. * Proficient in web/software engineering, coding & programming, quality assurance, UX & UI design, agile/scrum

React.js
GraphQL
TensorFlow
Spring Boot
PostgreSQL
Amazon DynamoDB
Scrum
Mobile App
Web Development
DevOps
Python
JavaScript
CSS
Node.js
Angular
React
$40 hourly
- 0.0/5
- (0 jobs)
As a Belgian living in Costa Rica, I am a passionate Full Stack Developer with a strong focus on both development and design, ensuring seamless user experiences and optimized performance. My expertise extends beyond coding to Strategic Thinking, where I enjoy optimizing products for efficiency and scalability. With a keen eye for design, I collaborate with teams and clients to shape the product's functionality while maintaining a clear vision of user needs. Additionally, my Project Management experience enables me to guide projects from concept to completion, ensuring timely delivery and high-quality outcomes. * Specialities: PHP, Laravel, React, NextJs, Javascript/Jquery, Mysql, Linux, ...

React.js
Responsive Design
Database Management
MySQL
Project Management
Next.js
Full-Stack Development
jQuery
SCSS
CSS
HTML
React
JavaScript
Laravel
PHP
$75 hourly
- 0.0/5
- (0 jobs)
I’m a frontend developer experienced in creating responsive and dynamic web applications for businesses of all sizes. Whether you need a modern UI, interactive components, or performance optimization, I can help. • Proficient in Vue.js, JavaScript, HTML, CSS, and modern frontend frameworks. • Skilled in building custom components, integrating third-party libraries, and enhancing UI/UX. • Focused on clean, maintainable code and scalable solutions. • Regular communication is a priority, ensuring alignment and timely delivery. Let’s work together to build web solutions that meet your needs and delight your users.

React.js
International Development
CSS
CSS 3
JavaScript
Vuex
Redux
Vue.js
React
Web Development
Web Application
$35 hourly
- 0.0/5
- (0 jobs)
I’m a software developer specializing in frontend development and AI-driven chat solutions. Here’s what I can do for you: • Build responsive, high-performance applications with React + TypeScript and Angular, based on Figma designs. • Develop AI chatbots using Langchain, Amazon Lex, and Lambda, enabling natural language interactions and smooth bot-human transitions. • Integrate cloud services like Amazon Connect, S3, and CloudFormation for scalable, reliable solutions. Let’s work together to create exceptional user experiences and intelligent solutions!

React.js
AWS Lambda
AWS Development
Front-End Development
TypeScript
Python
LangChain
Angular
React
Artificial Intelligence
Web Application
$45 hourly
- 0.0/5
- (0 jobs)
Senior Web Developer, certified accessibility expert and certified Scrum Master with over 16 years of experience, including 13 years focused on Fintech projects in the USA. Highly skilled in front-end development, specializing in accessibility, responsive design, UI/UX optimization, and front-end security. Proven expertise in Java and JavaScript and Typescript for both web, integrations and backend development.

React.js
Web Content Accessibility Guidelines
API Development
SQL
Scrum
Next.js
Section 508
Responsive Design
JavaScript
Java
TypeScript
Node.js
Ada
Web Accessibility
Web Development
React
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