Programador React Senior Frontend

@GabrielV4

Hola, estoy disponible para unirme al proyecto. Quedo atento a cualquier contacto. Un cordial saludo

@n2rtechnologies

Hi, We've built multiple React apps with complex feature integrations. Your project needs someone who moves fast—we handle that in sprints, Git workflows locked down, APIs connected properly. Message me to discuss. Best Regards, Hasan

@ZohaibRoy

⭐⭐⭐⭐⭐ Enhance Your React Web App with Key Frontend Features ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project needs and see you are looking for a skilled React developer. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects for React applications. I can expand your existing code by integrating the defined REST APIs, creating interactive real-time elements, and improving your forms. ➡️ Why Me? I can easily enhance your web application as I have 5 years of experience in React development, focusing on API integration, real-time features, and advanced form validation. I also have a strong grip on TypeScript, Styled-Components, and testing with Jest and React-Testing-Library, ensuring a smooth workflow and high-quality results. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you in our chat. ➡️ Skills & Experience: ✅ React 18 ✅ TypeScript ✅ REST API Integration ✅ Real-time Dashboards ✅ Advanced Form Validation ✅ Styled-Components ✅ Jest Testing ✅ React-Testing-Library ✅ Git Version Control ✅ Dynamic Filtering ✅ Error Handling ✅ WCAG Compliance Waiting for your response! Best Regards, Zohaib

@webbookstudio

Hi there, We understand you're looking to enhance your React web application with key functionalities such as REST API integrations, interactive elements, and form improvements, all while ensuring robust error handling, accessibility, and high test coverage. With our expertise in React, TypeScript, and Styled-Components, alongside experience with Jest and React-Testing-Library, we're confident in delivering high-quality solutions that meet your requirements, including WCAG 2.1 AA compliance and Lighthouse scores of 90 or higher. We've worked on similar projects, such as a music voting mobile app using React Native and a furniture store mobile shopping app with Flutter, demonstrating our capability to handle complex frontend developments. One question: Could you provide more details about the existing codebase and the specific challenges you're facing with the current implementation, to better understand how we can assist? Feel free to message us to discuss the details! — Webbook Studio

@SBITServices

Hi, I have extensive experience in React development and can help enhance your web application with key frontend functionalities. I will seamlessly integrate REST APIs, create real-time interactive elements, and improve existing forms with advanced validation and accessibility feedback. Let's discuss further to ensure a successful collaboration. Regards, Sai Bhaskar

@jcrbahia

El requisito de respuesta inferior a 100 ms en dashboards con filtros dinámicos deja claro que este proyecto busca calidad real, no solo funcionalidad básica. - Integraré las tres APIs REST (autenticación, pagos y analítica) con interceptores, errores tipados en TypeScript y estados de carga memoizados para cumplir ese umbral en dashboards y tablas filtradas. - Construiré los componentes interactivos a partir de las maquetas en Figma, garantizando WCAG 2.1 AA y Lighthouse ≥ 90 en cada PR, con pull requests descriptivos al repositorio privado. - Elevaré la cobertura de formularios al 90 % o más con Jest y React-Testing-Library, incluyendo validación avanzada y feedback accesible desde el primer ciclo de revisión. Puedo tener todo entregado y fusionado en develop en 7 días. La cifra cubre el alcance descrito; afinaremos el número en cuanto concretemos los detalles que aún faltan, como el volumen real de endpoints y componentes. Propongo una llamada de 15 minutos para revisar el backlog de Jira y aclarar esas dudas antes de empezar.

@raheel2k29

Hello, I am a Senior Frontend Developer specializing in React 18 + TypeScript, with strong experience building scalable, production-ready applications, integrating complex REST APIs, and improving existing frontend systems without disrupting architecture or workflows. I can help extend your current React application while ensuring performance, maintainability, accessibility, and test coverage standards are fully met. My approach Review existing codebase and architecture Analyze APIs, Figma designs, and Jira backlog Break tasks into small, reviewable PRs Implement features incrementally Add and improve tests continuously Optimize performance and accessibility Final QA against acceptance criteria I can start immediately after reviewing your repository and attending the technical interview. Best regards RAHEEL

@intelliresponse

With over a decade of experience in high-impact software development and proficiency in the key technologies you've mentioned—React, TypeScript, and Styled-Components—I'm more than equipped to help take your application to the next level. As a senior frontend developer, I've built a reputation for delivering top-notch work that's aligned with clients' specific requirements, making me the perfect fit for your evolving React project. I have hands-on experience with consuming RESTful APIs, handling errors, and managing loading states. In addition, I excel at creating interactive real-time elements such as dynamic dashboards and tables with filters – all with response times well below 100 ms. Moreover, I take pride in my ability to enhance existing forms by implementing advanced validation techniques while ensuring accessibility and excellent test coverage. My familiarity with your preferred tech stack is comprehensive, spanning from React 18 with TypeScript to testing with Jest/React-Testing-Library on Git repositories via pull requests—exactly what you're looking for. I bring not only technical expertise but also an unwavering commitment to quality. This is evident in my meticulous process which involves documenting API consumption, building accessible components meeting WCAG 2.1 AA standards, exceeding 90 in Lighthouse metrics, and guaranteed unity and integration tests of forms before delivery. Let's leave a lasting impact together!

@dgmstudioinfo

Para cumplir estrictamente con los criterios de aceptación solicitados, mi estimación contempla 16 días hábiles de desarrollo continuo (con una dedicación de 5 horas diarias). El presupuesto total para garantizar esta fase es de $2,000 USD. Este valor refleja la inversión de tiempo técnico necesario para asegurar que el código llegue a producción con las siguientes métricas: Testing exhaustivo: Desarrollo de pruebas unitarias y de integración precisas con Jest y React-Testing-Library para alcanzar y sostener la cobertura del 90%. Rendimiento y Accesibilidad: Optimización de componentes (Styled-Components) para mantener respuestas inferiores a 100 ms, asegurar auditorías Lighthouse ≥ 90 y cumplir con el estándar WCAG 2.1 AA. Integraciones complejas: Consumo robusto de las APIs REST (autenticación y pagos). Aplicaré mi experiencia en sistemas Full Stack para garantizar un manejo de estados de carga y errores impecable en el frontend. Garantizo un flujo de trabajo ordenado mediante Pull Requests descriptivos, asegurando que cada tarea de Jira se revise y fusione en la rama develop sin conflictos. Quedo a entera disposición para participar en la entrevista y demostrar cómo aportaré valor inmediato a su código. Atentamente

@johnallenvillan1

Hi, Detecto que tu React 18 en desarrollo necesita integrar APIs REST de autenticación, pagos y analítica sin romper el flujo actual ni degradar Lighthouse. He pasado los últimos 4 años resolviendo exactamente este tipo de problemas en frontend: integré pasarelas de pago, dashboards en tiempo real y formularios complejos con cobertura alta y errores controlados. El riesgo real aquí no es solo consumir APIs; es mantener estados consistentes, accesibilidad WCAG 2.1 AA y latencia percibida baja cuando filtros, tablas y métricas cambian en vivo. También hay que evitar regresiones al entrar en develop, así que documentaré cada PR y dejaré pruebas reproducibles. Implementaré la capa de servicios tipada en TypeScript, manejo centralizado de errores y loading states, componentes reutilizables en Styled-Components y validaciones avanzadas con feedback accesible. Después cubriré formularios y flujos críticos con Jest y React-Testing-Library hasta superar el 90% en las áreas nuevas. Trabajo con ramas pequeñas, PRs descriptivos y validación contra Figma/Jira para que la revisión sea limpia y sin conflictos. Best regards, John allen.

@MIndlabsAi6

Hey there, I'm Vishal Maharaj from Perth, Australia, with 25 years of experience in JavaScript, HTML5, React.js, and Agile Development. I'm passionate about taking on your project. I understand the need to enhance your React web application with key frontend functionalities like API integrations, real-time interactive elements, and form improvements. I would approach the project by ensuring seamless integration of defined REST APIs, implementing interactive elements with fast response times, and enhancing current forms with advanced validation and accessibility features. Let's discuss further details and kickstart this project. Feel free to initiate the chat. Cheers, Vishal Maharaj

@EdNoriega

As a top-rated senior software engineer with a wealth of React experience under my belt, I'm confident that I can make a lasting impact on your project. Having worked on numerous complex web applications throughout my 10+ year career, I fully understand the importance of robust frontend functionalities such as API integrations, real-time interactive elements, and improved form features - all areas you're looking to enhance within your React app. Moreover, my proficiency in technologies such as React 18, TypeScript, Styled-Components, and testing with Jest/React-Testing-Library will ensure that the deliverables meet your strict standards including comprehensive tests coverage of at least 90%. Additionally, rest assured that the WCAG 2.1 AA compliance is in line with my standard practices and I've consistently delivered performance metrics matching or exceeding Lighthouse ratings of 90+. One of the benefits working with me as part of a larger full-stack team is our commitment to effective communication. Not only do we share your timezone but we also strive to maintain clear and constant collaboration via platforms like Jira and Git as you've emphasized in your project preferences. Lastly, our iterations on Slack in real-time and continuous quality assurance from day one ensures frequent updates on progress without cutting any corners.

@devitmd98

Hola, Lo que destaca de este proyecto es que no se trata solo de añadir funcionalidades, sino de fortalecer una base React ya existente con estándares de producción: integración sólida de APIs, rendimiento en tiempo real y calidad de código verificable mediante testing y accesibilidad. Mi enfoque sería trabajar directamente sobre el frontend en React 18 con TypeScript, asegurando que cada integración de API tenga manejo consistente de estados (loading, success, error), tipado fuerte y una capa de servicios bien estructurada para evitar lógica dispersa en componentes. Para los dashboards y tablas en tiempo real, me centraría en optimizar renderizado y estado para mantener respuestas rápidas, usando memoización y patrones de actualización eficientes, garantizando una experiencia fluida incluso con filtros dinámicos. En formularios, implementaría validaciones robustas con feedback accesible y pruebas unitarias e integración usando React Testing Library y Jest, asegurando cobertura alta y comportamiento consistente. También integraría buenas prácticas de accesibilidad (WCAG 2.1 AA) y optimización de rendimiento para cumplir con Lighthouse ≥ 90 en los componentes afectados. Una pregunta clave antes de empezar es si ya existe un contrato de API definido (Swagger/OpenAPI) o si también es necesario estandarizar las respuestas y errores desde el lado del backend. Saludos

@usamaansari786

Hello, I understand your requirement for a React 18 + TypeScript frontend developer to extend your existing web application with API integrations, real-time features, and improved form validation as part of the next development phase. I can help you with this. I will work on your project by: • Integrating REST APIs (authentication, payments, analytics) with proper error handling and loading states • Building real-time UI components like dashboards and dynamic filterable tables with fast response performance • Improving forms with advanced validation, accessibility-friendly feedback, and strong test coverage (Jest + React Testing Library) You will receive: • Clean, scalable React code using TypeScript and Styled-Components • Fully tested components with ≥ 90% coverage • Optimized UI meeting WCAG 2.1 AA and Lighthouse ≥ 90 standards • Well-structured pull requests with clear documentation I am comfortable working with Git workflow, Jira tasks, and Figma-based designs, and I can integrate smoothly into an ongoing production-level codebase. I can also discuss the project in Spanish during interview as required. Looking forward to working with you. Best regards, Usama K

@amazeez1100

Hi, I am a senior React developer. I can help you perfectly. Please message me and then we can start immediately. Best Regards.

@mughiraaa

hi, we have strong expertise in react and next js development and we can handle this easily. we have worked on similar production level frontend systems with api integrations, dashboards, and testing setups. i will extend your existing react codebase by integrating the required rest apis with proper error handling, loading states, and clean architecture. i will also build real time dashboard components with fast filtering and optimized performance, and improve forms with strong validation, accessibility, and proper test coverage using jest and react testing library. we will follow a clean git workflow with pull requests so everything is easy to review and merge, and i will make sure the code meets performance, accessibility, and testing requirements as mentioned. can we schedule a quick meeting to discuss the project in detail. it will help us understand your current setup better and give you a clear plan with timeline and effort. i will also share my portfolio during the chat. mughiraa

@invoketech

Hola, Cuento con más de 9 años de experiencia en desarrollo con React, incluyendo la creación de aplicaciones web listas para producción mediante React 18, TypeScript y patrones modernos de arquitectura frontend. Puedo ampliar su código base actual incorporando integraciones de API escalables, componentes de paneles (dashboards) en tiempo real y una gestión robusta de formularios que incluya validaciones estrictas y una amplia cobertura de pruebas. Entiendo la importancia de lograr un comportamiento fluido de la interfaz de usuario en sistemas de producción, lo que abarca estados de carga adecuados, gestión de errores, accesibilidad (cumplimiento de WCAG 2.1 AA) y optimización del rendimiento para obtener puntuaciones altas en Lighthouse. Tengo experiencia trabajando con API REST (autenticación, pagos, analítica), creando tablas dinámicas con una gestión eficiente del estado y garantizando que los componentes estén totalmente probados mediante Jest y React Testing Library, alcanzando una cobertura igual o superior al 90 %. Asimismo, estoy habituado a trabajar con flujos de trabajo basados ​​en Git, diseños en Figma y entornos de desarrollo gestionados con Jira. Hablemos por el chat; tengo algunas preguntas sobre la estructura de su API, la arquitectura actual de los componentes y las prioridades de los sprints. Gracias.

@vladang

Veo que el reto aquí no es crear pantallas desde cero, sino llevar una aplicación que ya está avanzada a un nivel de producción sin introducir deuda técnica ni afectar la experiencia actual. Empezaría revisando la arquitectura existente de React/TypeScript y la forma en que hoy se gestionan estados, llamadas API y componentes compartidos. A partir de ahí integraría autenticación, pagos y analítica con una capa consistente de manejo de errores, reintentos controlados y estados de carga claros para evitar comportamientos inesperados en producción. Para los dashboards y tablas dinámicas, me enfocaría en minimizar renders innecesarios y optimizar filtros para mantener respuestas por debajo de los 100 ms incluso con grandes volúmenes de datos. En formularios, reforzaría validaciones, accesibilidad WCAG 2.1 AA y cobertura de pruebas con Jest y React Testing Library antes de cada PR. Recientemente trabajé en Zipline utilizando React, TypeScript y flujos complejos de frontend donde la estabilidad y el rendimiento eran requisitos críticos. ¿Las APIs ya tienen contratos OpenAPI/Swagger definidos? ¿Los dashboards consumirán datos en tiempo real o mediante actualizaciones periódicas? Puedo incorporarme al repositorio y empezar con la primera revisión técnica desde el primer día.

@temoberishvili

Hello! I see you’re looking to enhance your React web application with new functionalities. To integrate these features efficiently, we can leverage a modular approach, ensuring each functionality is developed in isolation and then tested thoroughly. Utilizing Git for version control will help maintain a clean codebase, and we can incorporate Figma designs directly into the workflow for a smoother transition from design to implementation. I'd start by reviewing the current architecture and identifying areas where these new functionalities can fit in seamlessly. Q1: What specific functionalities are you looking to add? Q2: Do you have existing design assets in Figma that we should follow? Q3: What is your preferred method for testing these new features before deployment? Let’s make this application shine.