12 Ofertas de React en Costa Rica

Date Opened

09/23/2025

Job Type

Full time

Industry

Technology

Remote Job

This is a remote position.

We are looking for a talented Frontend React Developer to join our team and build high-quality, scalable, and maintainable web applications. The role requires strong React expertise, solid front-end fundamentals, and a good understanding of modern development practices.

Key Responsibilities

• React: Build and maintain scalable, reusable UI components and applications.
• React Router: Implement client-side routing and smooth navigation flows.
• React Query: Manage server state, data fetching, and caching.
• TypeScript: Write clean, type-safe, and maintainable code.
• Testing (Jest + Testing Library): Create and maintain unit and integration tests for components and logic.
• Cloud Native (AWS): Apply AWS services and cloud deployment best practices.

• Frontend Basics:

• Strong knowledge of HTML5, CSS3, and JavaScript (ES6+).

• Experience with responsive design and cross-browser compatibility.
• Understanding of UI/UX principles and ability to collaborate with designers.

• Proven experience building web applications with React and TypeScript.
• Solid foundation in HTML, CSS, and JavaScript.
• Familiarity with state management, routing, and API integration.
• Experience with testing frameworks (Jest, Testing Library).
• Knowledge of cloud environments (AWS) is a plus.
• Strong problem-solving skills, attention to detail, and a passion for clean code.

• Continuous training program
• Talks and workshops on personal and professional growth
• Organizational team building events
• Rewards
• Social Responsibility committee
• Wellness Subsidy
• PTO's
• Developer's day celebration
• Birthday off
• Monthly kudos
• Holiday celebration day off
• 70+ Partnerships with restaurants, hotels, hiking groups, fitness, stores, medical services, psychology services, dental services, universities, pet supply services, pet medical pharmacy chains, events, and car services.

Location: Latin America only (Remote)

We seek a skilled React Developer to join our team, focusing on designing and developing state-of-the-art applications, enhancing user experience, and contributing to our products overall success

Responsibilities

• Lead the design and architecture of complex systems, ensuring scalability, reliability, and maintainability
• Tackle challenging technical issues and find innovative solutions
• Set high standards for code quality, conduct code reviews, and establish best practices
• Make informed, strategic technical decisions that align with business goals
• Mentor less experienced software engineers, helping them grow their technical and problem-solving skills
• Lead knowledge-sharing sessions or workshops to upskill the team
• Provide constructive feedback on both technical and professional aspects of development
• Act as a bridge between technical and non-technical stakeholders, translating complex concepts into understandable terms
• Help resolve disagreements within the team by facilitating productive discussions
• Estimate time, resources, and risks for projects, ensuring timely delivery
• Identify inefficiencies in workflows and suggest or implement improvements
• Lead the development of key features or components in a project
• Troubleshoot difficult system issues and optimize performance
• Ensure critical knowledge is documented for maintainability and onboarding
• Take responsibility for the success and failures of assigned tasks and projects
• Make choices that ensure system sustainability and future development
• Demonstrate professionalism, diligence, and a growth mindset

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience)
• 8 to 10 years of professional software development experience
• English level B2 or above is required
• Expert-level experience with:
• React
• TypeScript
• CSS / Tailwind
• Git / GitHub
• Playwright
• Jest
• Excellent problem-solving skills and attention to detail
• Strong communication and collaboration abilities
• Self-motivated and able to work independently or in a team environment
• Open-minded to new ideas and approaches

Nice to Have

• C#
• ASP.NET Core
• Postgres
• CI/CD
• DevOps
• Docker
• Django
• Figma

Why Join Us?

• Full-time position
• Payment in US dollars
• Contractor hiring mode
• 100% remote in LATAM
• 12 PTO per year
• Holidays from your country off and paid
• Birthday off and paid
• Career Path
• Recognition Program
• Paid Leaves

If you meet these requirements and are interested in applying for this position, please let us know. We look forward to the possibility of working with you.

We are looking for a
React Native Engineer
to join our fast-paced, dynamic environment.

You will play a key role in modernizing mobile applications by converting legacy Android apps into high-performance React Native apps for both Android and iOS. This is a unique opportunity to leverage AI-assisted tools to accelerate delivery, ensure cross-platform consistency, and focus on delivering innovation at scale.

Our client operates in the technology space and is currently evolving its mobile app ecosystem. This project includes rewriting an existing oral history collection app, building new features, and creating a new field audits app—delivering a unified, efficient, and maintainable cross-platform experience.

Location:
Must reside and have work authorization in Latin America.

Availability:
Must be available to work with significant overlap with Mountain Standard Time (MST).

*The Ideal Candidate Has: *

• BS/MS in Computer Science, Engineering, or related field with 6+ years of professional software development experience.
• 4+ years of proven React Native experience in production-grade mobile applications.
• Strong mobile development experience for both iOS and Android platforms.
• Expertise in JavaScript/TypeScript and modern front-end development practices.
• Hands-on experience leveraging AI-assisted tools to enhance development productivity.
• Ability to develop performant, scalable, and maintainable mobile applications.
• Strong collaboration skills to work closely with design, product, and engineering teams.
• Excellent communication skills in English (C1 preferred, strong B2 may be considered).

*Key Responsibilities: *

• Rewrite existing Android apps into React Native while ensuring feature parity and optimal performance.
• Collaborate with the engineering team to integrate AI-assisted tooling for efficient migration and development.
• Build and ship new features post-migration to expand the Oral Gen app's capabilities.
• Design and develop a new field audits application from scratch using React Native.
• Ensure seamless and scalable deployment across iOS and Android platforms.
• Work with product and design teams to implement intuitive, user-friendly interfaces.

Senior React Native Engineer – LATAM (Remote)

We're looking for a Senior React Native Engineer to join an AI-powered platform that's transforming construction. From planning to execution, the platform makes work seamless for teams in the field and in the office.

This is initially a 3-month contract with the potential to become a long-term engagement for the right candidate.

You'll take ownership of building high-quality, performant, and scalable mobile apps , collaborate with a remote team, and help shape the future of the platform. If mentoring and guiding best practices excite you, this is your chance to make an impact.

What We're Looking For:

• 4+ years of mobile development experience, strong in React Native
• Proficient in JavaScript/TypeScript and modern mobile architectures
• Experience with REST APIs and third-party integrations
• Comfortable working remotely and independently
• Strong problem-solving skills and good English communication

Nice-to-Have:

• CI/CD pipelines experience
• Android/iOS native development knowledge

Why You'll Love This Role:

• Work on a cutting-edge platform redefining construction with AI
• Fully remote
• Competitive pay with the potential to convert to full-time

If this sounds like a fit, apply now —we're excited to hear from you

Explore the Nearsure experience

Join our close-knit LATAM remote team:
Connect through fun activities like coffee breaks, tech talks, and games with your team-mates and management.

Say goodbye to micromanagement
We champion autonomy, open communication, and respect for diversity as our core values.

Your well-being matters:
Our People Care team is here from day one to support you with everything from time-off requests to wellness check-ins.

Plus, our Accounts Management team ensures smooth, effective client relationships, so you can focus on what you do best.

Ready to grow with us?

Here's what we offer you by joining us

Competitive USD salary – We value your skills and contributions

100% remote work – While you can work from anywhere, you're always welcome to connect with teammates and grow your network at our coworking spaces across LATAM

Paid time off – Take the time you need according to your country's regulations, all while receiving your full salary. Rest, recharge, and come back stronger

National Holidays celebrated – Take time off to celebrate important events and traditions with loved ones, fully embracing your culture.

Sick leave – Focus on your health without the stress. Take the necessary time to recover and feel better.

Refundable Annual Credit – Spend it on the perks you love to enhance your work-life balance

Team-building activities – Join us for coffee breaks, tech talks, and after-work gatherings to bond with your Nearsure family and feel part of our vibrant community.

Birthday day off – Enjoy an extra day off during your birthday week to celebrate in style with friends and family

About the project:

As a
Staff Fullstack React/C# Engineer
, you will be part of a team working to build secure systems for the client ecosystem. You will pursue continuous improvement to help our client achieve its mission: Powering the world's fitness and wellness businesses and connecting them with more consumers, more effectively, than anyone else.

How you'll contribute

Collaborate closely with Product, Design, and QA to iterate on the design, implementation, and deployment of our product.

Build and maintain backend systems and applications.

Seek different perspectives and solicit honest feedback.

Practice engineering best practices (e.g., automated testing, code reviews, proper monitoring).

Take delight in delighting our users.

Care about our studio partners and want to help them grow their business.

This would make you the ideal candidate

Bachelor's Degree in Computer Science, Engineering, or a related field.

8+ Years of experience building backend services with an object-oriented language such as C#.

8+ Years of experience working with designing and architecting backend services.

8+ Years of experience working with designing and working with Microservice architecture.

Solid experience with monitoring (such as New Relic or Kibana).

Familiarity with SDLC, programming design patterns, and Agile methodology.

Experience reviewing new feature impact on an application and recognizing potential risks.

Migrating from monolith to microservices.

Experience working with AWS.

Advanced English Level is required for this role, as you will work with US clients. Effective communication in English is essential to deliver the best solutions to our clients and expand your horizons.

What to expect from our hiring process

1. Let's chat about your experience

2. Impress our recruiters, and you'll move on to a technical interview with our top developers.

3. Nail that, and you'll meet our client - your final step to joining our amazing team

At Nearsure, we're dedicated to solving complex business challenges through cutting-edge technology and we believe in the power of tailored solutions. Whether you are passionate about transforming businesses with Generative AI, building innovative software products, or implementing comprehensive enterprise platform solutions, we invite you to be part of our dynamic team

We would love to hear from you if you are eager to make an impact and join a collaborative team that values creativity and expertise.

Let's work together to shape the future of technology

Apply now

By applying to this position, you authorize Nearsure to collect, store, transfer, and process your personal data in accordance with our Privacy Policy. For more information, please review our Privacy Policy. )

About FullStack
FullStack is the most transparent IT talent network, connecting highly skilled individuals with top global companies and Silicon Valley startups for remote, on-demand projects. We focus on building a trusted, high-performance network where talent can thrive in a positive, respectful, and supportive environment. By prioritizing transparency, fair opportunities, and professional growth, we empower our engineers to deliver their best work while collaborating with innovative teams worldwide.

We're Most Proud Of

• Offering life-changing opportunities for talented software professionals across the Americas.
• Enhancing highly-skilled software development teams of hundreds of the world's greatest companies.
• Our 4.2-star rating on GlassDoor.
• Our client Net Promoter Score of 68, twice the industry average.

The Opportunity
Join our talent network and connect with U.S. clients for flexible, project-based development work as a Senior Elixir Developer, React-focused Projects.

• You will integrate directly into our client's team and work alongside their existing designers and engineers on a daily basis.

What We're Looking For

• 5+ years of professional software development experience.
• 3+ years of experience developing applications using Elixir.
• 3+ years of experience developing applications using
• Advanced English is required.
• Successful completion of a four-year college degree is required.
• Meaningful experience working with Angular.
• Experience working with GraphQL.
• Experience with automated testing, including Jest, React Testing Library, and optionally Playwright for end-to-end testing.
• Ability to design systems, or large-scale frontend architecture experience or exposure.
• Ability to work through new and difficult issues and contribute to libraries as needed.
• Ability to create and maintain continuous integration and delivery of applications.
• Forensic attention to detail.
• A positive mindset and a can-do attitude.
• Experience working on Agile / Scrum teams.
• Meaningful experience working on large, complex systems.
• Ability to take extreme ownership over your work. Every day is a challenge to ensure you are performing to the expectations you and your team have agreed upon.
• Ability to identify with the goals of FullStack's clients, and dedicate yourself to delivering on the commitments you and your team make to them.
• Ability to consistently work 40 hours per week.

What We Offer

• Competitive pay.
• 100% remote work.
• The ability to work with leading startups and Fortune 500 companies.
• Continuing education opportunities
• Opportunity to grow and expand your career

Our talent network is committed to fostering a diverse, inclusive, and accessible environment where IT professionals can find opportunities that match their skills. We welcome individuals of all races, religions, genders, sexual orientations, national origins, abilities, and experiences. Our focus is on connecting talent with projects based on qualifications, ensuring a fair and transparent process that values diverse perspectives and global collaboration.

Learn more about our Applicants Privacy Notice.

What we're looking for?

Our client, a global firm of IT professional services is looking for a skilled Senior .NET/React developer.

In this role, you'll be instrumental in designing and building scalable, high-performing web applications using .NET and React.

IMPORTANT: this position is open only for candidates based in COSTA RICA.

Key Responsibilities:

• Work closely with the Technical Team Lead and Senior Developers within your team and respond to their guidance and support.
• Attend and contribute to sprint ceremonies including planning sessions, stand-ups and retrospectives.
• Understand our client complex business domain and be comfortable with the existing code-based solutions.
• Ensure that the acceptance criteria of user stories are met and failures in QA are limited.
• Produce high quality code using Test Driven Development.
• Embrace exposure to new architectures, cloud-based infrastructures, microservices and modern ways of working.
• Be able to diagnose issues via debugging, logging and tools like 
  NewRelic
  .
• Must be able to be self-learn and be motivated to understand code written by others.
• Ability/willingness to work with a remote team with minimal cross-over.
• Able to work with business users to identify and resolve production issues.

Qualifications:

• Excellent professional experience of C#, and the .Net Core ecosystem.
• Professional experience with React and test frameworks such as Jest.
• Experience using containerised systems, with some experience with ECS or Kubernetes
• Experience in writing CI/CD pipelines using tools such as GitHub Actions, Tekton, or similar
• Professional experience using JavaScript and TypeScript
• Experience with message-based architecture (SNS/SQS or similar)
• An understanding of relational and NoSQL databases, Postgres and JSON data type preferred
• Test Driven Development
• A good understanding of design patterns and principles e.g. SOLID and GO4 (desirable)
• Experience working in an Agile based project delivery environment
• Ability to refactor code
• Ability to work in a complex and fast-moving domain
• Fluent English.

Desirable

• Familiarity with other data stores, including cloud-based managed offerings
• AWS Cloud (or similar e.g. Azure)
• Experience in building React components based around Bootstrap

Hiring conditions:

• Remote job
• USD payment - contractor hiring modality USD/Hour)

Conviértete en un EXpert como Frontend Developer (ReactJS) - Temporal.

En EX Squared LATAM, impulsamos a marcas globales a través de estrategias digitales innovadoras. Estamos en búsqueda de un Frontend Developer con amplia experiencia en y JavaScript/TypeScript moderno para diseñar y entregar aplicaciones web de alta calidad, escalables y centradas en el usuario. Este rol es ideal para un profesional apasionado por la optimización de interfaces, el trabajo en equipo y las mejores prácticas de desarrollo.

Contratación por 6 meses – Oportunidad de aportar un impacto directo a soluciones digitales de alto nivel.

Modalidad híbrida – Se requerirá asistir 1 día a la semana a la oficina.

Lo que harás

• Desarrollar, mantener y optimizar aplicaciones frontend utilizando y JavaScript/TypeScript moderno.
• Implementar componentes reutilizables, hooks y patrones de UI para un código escalable y fácil de mantener.
• Integrar APIs RESTful, endpoints GraphQL y WebSockets en las aplicaciones frontend.
• Trabajar con librerías de gestión de estado como Redux, Zustand, Recoil o Context API.
• Colaborar con diseñadores UI/UX para crear interfaces responsivas y de alta fidelidad.
• Aplicar técnicas de optimización de rendimiento web (lazy loading, code splitting, memoization).
• Escribir pruebas unitarias y end-to-end con Jest, React Testing Library, Cypress o Playwright.
• Participar en revisiones de código asegurando calidad, seguridad y buenas prácticas.
• Colaborar en entornos ágiles, gestionando tareas con Jira u otras herramientas similares.

Lo que necesitas para tener éxito

• Más de 4 años de experiencia profesional en desarrollo frontend con enfoque en
• Dominio avanzado de JavaScript (ES6+) y TypeScript.
• Sólidos conocimientos de HTML5, CSS3 y preprocesadores como SASS/SCSS.
• Experiencia en gestión de estado (Redux, Zustand, Recoil, Context API).
• Dominio de React Hooks, Custom Hooks y ciclo de vida de componentes.
• Familiaridad con u otros frameworks de renderizado del lado del servidor.
• Experiencia en integración de APIs RESTful y microservicios; deseable experiencia con GraphQL.
• Conocimiento de pruebas unitarias y E2E.
• Familiaridad con sistemas de diseño (Storybook, Material UI, Chakra UI, Tailwind CSS).
• Experiencia en aplicaciones SaaS o iPaaS.

Deseable

• Familiaridad con contenedores (Docker) y plataformas cloud (AWS, Azure).
• Conocimiento de estándares de accesibilidad (WCAG) y diseño inclusivo.
• Experiencia con analítica web y seguimiento de comportamiento de usuarios.

Por qué unirte a EX Squared

En EX Squared LATAM, creemos en desarrollar no solo productos digitales, sino también carreras. Te unirás a un equipo multicultural que impulsa la innovación para empresas que generan un impacto real en el mundo. Fomentamos una cultura de aprendizaje continuo, colaboración y retroalimentación constante, donde tu crecimiento es nuestra prioridad.

Lo que ofrecemos

• Salario competitivo en USD.
• Modalidad híbrida con 1 día a la semana en oficina.
• Entorno de trabajo flexible, inclusivo y colaborativo.
• Acceso a EX Squared University para formación y certificaciones.
• Cultura que valora la creatividad, la proactividad y el éxito en equipo.

¿Listo para llevar tus habilidades en al siguiente nivel?

Postúlate hoy y crece como un verdadero EXpert.

Role Overview:

We are looking for a motivated and detail-oriented
Junior Front-End Developer
to join our team. You will work closely with designers, developers, and product managers to build engaging, responsive, and user-friendly web interfaces.

This role is ideal for developers with some experience (personal projects, internships, junior roles) who want to grow while contributing to marketing-driven web projects like landing pages, popups, and promotions. You'll work closely with experienced developers and designers, gaining hands-on experience in modern frontend development.

Job Responsibilities:

• Collaborate with designers and developers to implement responsive and interactive web pages

• Translate UI/UX designs and wireframes into high-quality code using HTML, CSS, and JavaScript

• Maintain and improve existing websites and applications

• Test, debug, and optimize components for maximum performance and cross-browser compatibility

• Stay up to date with modern front-end development practices and frameworks

• Participate in code reviews and team meetings

• Document code and contribute to technical specifications

Minimum Requirements:

• Bachelor's degree in computer science, Web Development, or a related field and 1-2+ year of relevant front-end development experience.

• Proven understanding of HTML5, JavaScript and basic TypeScript.

• Proven Experience with responsive design and mobile-first development.

• Proven Experience using Tailwind CSS for styling.

• Experience working with Figma or similar tools to translate designs into simple interfaces.

• Experience to Git for version control and teamwork.

Preferred Qualifications:

• Curiosity, willingness to learn, and enthusiasm for working in an agile team environment.

• Awareness of state management concepts.

• Portfolio of projects or GitHub profile showcasing your work (preferred)

• Exposure to at least one modern JS framework (React, Remix, Astro).

• Awareness of headless CMS (WordPress, Strapi, etc.).