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Programador Senior React para Desarrollo Web y Mobile de Plataformas Digitales Estamos buscando un programador con experiencia comprobable para trabajar en un proyecto de desarrollo de diferentes plataformas digitales. No buscamos un perfil junior. Necesitamos una persona con experiencia real en desarrollo, capaz de mostrar proyectos anteriores y trabajar de manera autónoma. ¿Qué buscamos? Experiencia sólida como programador. Dominio de React. Experiencia en desarrollo web. Experiencia en desarrollo de aplicaciones mobile. Conocimiento de diferentes plataformas y tecnologías de desarrollo. Capacidad para integrarse a un proyecto en crecimiento. Buena comunicación y capacidad para trabajar directamente con el responsable del proyecto. Es importante que presentes tu portafolio Queremos revisar trabajos reales que hayas desarrollado. Por favor, incluye en tu propuesta: Aplicaciones mobile que hayas desarrollado. Proyectos web desarrollados con React. Otros proyectos relevantes. Las propuestas sin ejemplos de trabajos anteriores tendrán menos prioridad. Presupuesto USD 600 a USD 1,000, dependiendo del perfil y experiencia. Jornada laboral diaria de lunes a viernes. En caso de que se tuviera que hacer horas extras, van pagadas aparte, y si se trabaja los fines de semana, también es un importe aparte. Si eres un programador con experiencia sólida en React, desarrollo web y mobile, queremos conocer tu experiencia y ver tu portafolio.
Project ID: 40729625
293 proposals
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293 freelancers are bidding on average $757 USD for this job

Hi — Elias here from Miami. I see you’re looking for a senior React developer to build web and mobile platforms. The goal seems to be creating a seamless and efficient user experience across devices. What usually matters most here is ensuring the application can handle varying loads while maintaining performance. A common issue in systems like this is managing state effectively, especially with user interactions and real-time updates. The tricky part is usually integrating backend services without sacrificing stability. My approach would focus on structuring your app for both scalability and maintainability. I’d employ a modular architecture, making future enhancements smoother. This also includes employing best practices in state management to streamline user workflows and prevent bottlenecks. I've worked on similar projects where I ensured robust integrations and optimized performance, which is key to user satisfaction. A few questions to better understand the scope: Q1 – What specific user roles and permissions will the platform require? Q2 – Are there any particular integrations you foresee as critical for the launch? Q3 – How do you envision handling user authentication and data security? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$800 USD in 5 days
9.1
9.1

Hi there, We understand you're looking for a seasoned React developer with a strong background in web and mobile development to work on a project across different digital platforms. You need someone with verifiable experience, the ability to work autonomously, and a portfolio that showcases their skills. At Webbook Studio, we have extensive experience in React, JavaScript, and frontend development, with a portfolio that includes a music voting mobile app built with React Native, React.js, and Node.js, as well as multiple web projects developed with React for various clients. Our team has a solid grasp of web development, mobile application development, and knowledge of different development platforms and technologies. We'd be happy to share our portfolio with you, which includes mobile applications like a furniture store mobile shopping app and web projects such as a learning platform website for children built with PHP, WordPress, and custom React components. Can you tell us more about the specific requirements and goals of your project, and how you envision our collaboration? Feel free to message us to discuss the details! — Webbook Studio
$1,000 USD in 20 days
9.2
9.2

Hi, As an established web and mobile app development company with almost two decades of experience, our team at IT Flex Solutions India is perfectly positioned to exceed your expectations. Our 483+ successful projects and counting, all developed by our team of over 40 skilled developers, speak for themselves about our capabilities. Our expertise in React, along with other relevant technologies like Node.js and React Native gives us the edge you need for this project. With regards to our experience in web development, we have proven records in WordPress, Magento, Shopify, Joomla, and PrestaShop Development - all of which include the flexibility and scalability your project requires. Additionally, our equipped knowledge in HTML5, CSS3, JavaScript and the corresponding expertise in responsive website development ensures that your platforms will be visually appealing and functional on various devices. Thanks, SBM
$850 USD in 15 days
9.0
9.0

Hola, Entiendo que necesita un programador React senior para construir plataformas digitales web y mobile. Mi solución es usar React y React Native con una arquitectura clara, componentes reutilizables y código escalable. - Analizar cada plataforma y definir rutas, navegación y estados. - Integrar APIs, login y funciones clave de negocio. - Asegurar interfaces responsivas con HTML, CSS y JavaScript. - Optimizar rendimiento para pantallas móviles y web. - Dejar entregas documentadas y mantenibles. Tengo experiencia en Frontend, Node.js y desarrollo multiplataforma, por lo que puedo aportar una base sólida para sus productos digitales. Si me comparte el detalle del alcance, puedo proponer la estructura inicial y comenzar con prototipos funcionales que validen rápidamente la dirección del proyecto. Best Regards, Khorshed Alam, RS Software
$850 USD in 6 days
9.1
9.1

Hola, CnEL India puede apoyar el desarrollo de plataformas web y mobile utilizando React y React Native, con una metodología enfocada en calidad, escalabilidad y entregas continuas. **Nuestra metodología:** * Revisar la arquitectura existente, funcionalidades y objetivos del proyecto. * Definir una estructura modular para React/React Native y reutilizar componentes cuando sea posible. * Desarrollar interfaces responsive y consistentes para web y mobile. * Implementar la lógica necesaria mediante Node.js y APIs REST. * Integrar servicios externos y gestionar estados, validaciones y errores correctamente. * Mantener el código organizado mediante Git y buenas prácticas de desarrollo. * Realizar pruebas funcionales, responsive y de compatibilidad en diferentes dispositivos. * Optimizar rendimiento, carga y experiencia de usuario. * Revisar cada entrega con el responsable del proyecto y corregir incidencias rápidamente. * Documentar la configuración y facilitar el mantenimiento posterior. Podemos integrarnos en un proyecto existente o trabajar desde la arquitectura inicial, según el estado actual de la plataforma.
$800 USD in 15 days
8.9
8.9

Hola, Tengo experiencia sólida en desarrollo web con React y también en desarrollo de aplicaciones mobile. Puedo trabajar de forma autónoma, integrarme en un proyecto existente y mantener comunicación directa durante todo el desarrollo. Puedo encargarme tanto del frontend en React como de integraciones API, lógica de aplicación, responsive design, optimización, corrección de errores y desarrollo de funcionalidades para web y mobile. Estoy disponible para trabajar de lunes a viernes y puedo comenzar inmediatamente. También estoy de acuerdo en que cualquier trabajo adicional fuera del horario acordado o durante fines de semana se gestione y pague por separado. Propuesta inicial: USD 700 Una vez que revise las plataformas actuales, el código y las tareas pendientes, puedo organizar el trabajo por prioridades y avanzar directamente con el responsable del proyecto. Gracias, Yasir
$700 USD in 10 days
8.5
8.5

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in Frontend Development, Mobile App Development, React Native, Web Development, JavaScript, CSS, HTML, Node.js As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen
$1,000 USD in 30 days
8.7
8.7

Hola: Soy un desarrollador senior con experiencia práctica en la creación de aplicaciones web y soluciones móviles con React, enfocado especialmente en una arquitectura limpia, integración de API, interfaces responsivas y despliegues fiables en entornos de producción. Me siento cómodo trabajando de forma independiente, colaborando directamente con gestores de proyectos e integrándome en plataformas digitales y flujos de trabajo de desarrollo ya existentes. Puedes consultar mi portafolio para ver proyectos web y móviles reales: https://www.freelancer.com/u/Hammadhassan21 Estoy disponible de lunes a viernes y puedo dar soporte al proyecto a largo plazo a medida que este crezca. ¿Te gustaría que comparta los proyectos web y móviles con React más relevantes de mi portafolio, basándome en los requisitos actuales de tu plataforma? Saludos cordiales, Hammad Hassan
$900 USD in 16 days
8.0
8.0

Hello, I’m interested in joining your project as a Senior React Developer, bringing solid experience in building scalable web platforms and mobile applications using modern React technologies. I have hands-on experience with the React / React Native / JavaScript / Node.js ecosystem, developing production-ready interfaces, mobile applications, API integrations, and scalable frontend architectures. I can work independently, communicate progress clearly, troubleshoot technical issues, and work directly with the project manager to turn requirements into reliable, maintainable features. I’m available to work Monday through Friday and can adapt to your team’s workflow and working hours. Additional hours or weekend work can be coordinated separately when required. I’d be glad to learn more about your current architecture, the platforms you’re developing, and the first features planned so I can contribute effectively from the beginning. Best regards. ADEEL
$800 USD in 7 days
8.1
8.1

Hello, With over a decade of technical proficiency and demonstrated excellence in web and mobile app development, I believe I'm the exceptional React Senior you're seeking to build your diverse digital platforms. My capacity to work self-sufficiently, combined with my solid experience across different technologies and platforms, aligns perfectly with your specific requirements. Throughout my fruitful career, I've triumphantly built a myriad of high-quality applications reflecting my mastery in React which you can scrutinize in my illustrious portfolio. Moreover, as an esteemed member of WellSpring Infotech, I've honed my skills in responsive design, front-end and JavaScript development to amplify user experience and deliver top-notch products that convert. One reason why I'd be an invaluable asset to your growing project is my unwavering dedication to meeting and even exceeding client expectations. I offer end-to-end services including not just building the products with precision but also assuring their sustainable performance post-deployment through effective maintenance and tech support. So let's discuss how we can infuse innovation into your digital platforms while- maximizing ROI and ensuring long-term success. With regards, Rekha
$800 USD in 10 days
7.9
7.9

Greetings, I see you're looking for an experienced React developer to work on various digital platforms. With a solid background in both web and mobile development, I’m confident in my ability to contribute effectively to your growing project. My experience includes building responsive web applications using React and creating mobile apps that deliver great user experiences. I pride myself on being able to work independently while maintaining clear communication with project leads. I've successfully integrated into teams and adapted to project needs, ensuring that goals are met efficiently. While I can’t share links, I can discuss the various projects I've worked on, including mobile applications and web platforms that showcase my skills in JavaScript, React, and other relevant technologies. Looking forward to the opportunity to collaborate. Best regards, Saba Ehsan
$800 USD in 3 days
7.6
7.6

You need a senior React developer who can build both the web side and the mobile apps for your digital platforms, and who works without hand-holding. I have 8+ years of experience in web development and have delivered hundreds of projects using React, JavaScript and mobile app frameworks. I start by mapping the screens and the data your platforms share, then build the web app in React first. For mobile I use React Native, so the same business logic and API layer run the phone apps too. I am fully confident I can deliver this for you, and I will give my 100% until it works exactly the way you want. Unlimited revisions until you are satisfied. I can start right away.
$800 USD in 7 days
7.7
7.7

Hi, Entiendo que buscan un programador senior para desarrollar y mantener plataformas web y mobile, con experiencia real en React, autonomía y buena comunicación directa con el responsable del proyecto. Puedo trabajar de forma ordenada dentro de un proyecto en crecimiento, revisar la estructura actual y avanzar por prioridades claras. En el desarrollo web puedo integrar React con JavaScript y HTML, cuidando componentes reutilizables, rendimiento y adaptación a distintos dispositivos. Cuando el proyecto lo requiere, Node.js permite crear APIs y conectar correctamente la aplicación con sus servicios. También puedo colaborar en aplicaciones mobile y explicar con claridad las decisiones técnicas durante el trabajo. Compartiré ejemplos concretos de proyectos web y mobile desarrollados, indicando mi participación y las tecnologías utilizadas. Estoy disponible para la jornada de lunes a viernes y podemos acordar por separado cualquier hora extra o trabajo de fin de semana. ¿La plataforma ya tiene una base de código React y backend definidos, o se desarrollará la arquitectura desde cero? Quedo atento para revisar el estado actual del proyecto, sus prioridades y el portafolio que necesitan evaluar.
$1,000 USD in 17 days
7.0
7.0

Hello!, I am a Florida-based senior software engineer with strong React and React Native experience, and I focus on turning unclear product ideas into clean, scalable web and mobile platforms that actually work for users. From your post, the key pain point looks like this: you need one senior developer who can handle both the web and mobile sides without creating a messy codebase or slow delivery. I can help by breaking this into practical phases: 1) clarify scope and user flow, 2) build the React UI architecture and mobile structure, 3) connect APIs and state management cleanly, 4) test, refine, and ship something stable and maintainable. I’ve built production apps and dashboards in React, Node.js, and React Native, and I’m very detail-focused when it comes to frontend quality, mobile behavior, and code structure. Recent relevant work includes a logistics dashboard, a booking platform for small clinics, a field service mobile app, and a customer portal for a SaaS product. A couple of things I’d want to confirm before starting: 1) Is this mainly a new build, or do you already have part of the frontend/backend in place? 2) Do you want one shared codebase for web and mobile, or separate builds with shared logic? 3) What are the top 2 or 3 core user actions that must work perfectly in v1? If you’re looking for someone who reads carefully, thinks ahead, and builds with the end product in mind, I’d be a strong fit. Happy to jump into chat and map the best path forward. -James
$900 USD in 3 days
7.1
7.1

Hi, I went through your project details and understand what you're looking to achieve. I'd be interested in working with you on this. Based on the requirements you've shared, I can handle the project from start to completion while keeping the work aligned with your expectations, timeline, and desired outcome. My approach is straightforward: first, I'll make sure the requirements and expected deliverables are clear. Then I'll complete the work in structured stages, share progress along the way, incorporate your feedback, and deliver the final work after everything has been reviewed. Before we begin, I have a couple of questions about your requirements that will help me understand the scope more accurately. Feel free to message me so we can discuss the details and determine the best way to move forward. Best regards, Anum
$750 USD in 1 day
6.9
6.9

Hi there! I'm Markiyan, a full stack developer and CEO of a web agency, and I'd love to help you with your React development project for digital platforms. I understand you're looking for a seasoned programmer with verifiable experience in React, web, and mobile development, who can work autonomously and integrate into a growing project. With over 10 years of experience in web development and a strong background in React, I'm confident I can deliver high-quality results. My team and I have built several projects using React, including a music voting mobile app (React Native, React.js, Node.js, REST API) and a furniture store mobile shopping app (Flutter, Node.js, REST API). We've also worked on various web projects, such as a learning platform website for children (PHP, WordPress, custom design, Figma) and a website for a web/digital agency (PHP, custom design, WordPress). I'd be happy to share my portfolio with you, which includes: - Mobile applications: music voting app, furniture store app - Web projects: learning platform, web/digital agency website - Other relevant projects: online shop for a Scandinavian fashion brand (WooCommerce, custom Figma design), website for a luxury leather retailer (PHP
$1,000 USD in 20 days
6.9
6.9

Hello I understand you're seeking a seasoned React developer for your web and Best regards, Giáp Văn Hưng
$762 USD in 7 days
7.0
7.0

*** YO LO HAGO *** Estoy interesado en tu proyecto, puedo anexar lo que indicas solo necesito la versión del laravel y listo! Puedes contactarme sin compromisos y charlamos mejor, saludos y muchas gracias
$1,120 USD in 25 days
7.1
7.1

Hi, Puedo integrarme como desarrollador senior para trabajar de forma autónoma en plataformas web y mobile, utilizando React y tecnologías complementarias según las necesidades del proyecto. Puedo participar desde el análisis y arquitectura hasta el desarrollo, integración de APIs, pruebas, optimización y mantenimiento, manteniendo una comunicación directa y clara durante todo el proceso. Questione 1: ¿El proyecto utiliza actualmente React Native para mobile o esperan trabajar con otra tecnología como Flutter? Questione 2: ¿Ya cuentan con una arquitectura, repositorio y roadmap definidos para las primeras funcionalidades que debemos desarrollar? Regards, Houssame.
$600 USD in 8 days
6.2
6.2

Hello, I'm Denis, a full-stack developer with solid experience building web and mobile applications using React and React Native. I understand you need a developer to join your ongoing platform project, work independently, and integrate quickly into your team. You want to see real work examples and direct communication with your project lead without constant oversight. I've built several React web applications handling complex state management, API integrations, and responsive design. On mobile, I've developed React Native apps deployed to iOS and Android through the full release cycle. I've also worked with Node.js backends, so I understand the complete data flow between client and server. My approach is to start with a thorough requirements review to understand your platform's architecture, then integrate into your workflow. I'll handle feature development, bug fixes, and performance optimization while keeping you informed on progress and blockers. I'd prioritize understanding your existing codebase structure—how state is managed, how components are organized, and what patterns you're using. This ensures consistency and maintainability as the platform grows. The main risk is unclear requirements or scope creep, but regular check-ins and documented decisions manage this effectively. I can start right away. Let's connect and discuss the details. Thanks, Denis.
$600 USD in 15 days
6.3
6.3

Managua, Spain
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