Programador React Senior Frontend -- 2

@GabrielV4

Hola, un gusto saludarle, estoy disponible para sumarme al proyecto como freelancer de lunes a viernes. Quedo atento a cualquier contacto.

@techplusintl

Hola, ★★★ React.js Expert ★★★ 8+ Years of Experience ★★★ I can help enhance your web application with the required functionalities. I will integrate the defined REST APIs for authentication, payments, and analytics, ensuring robust error handling and loading states. I'll also implement real-time interactive elements like dashboards and tables with dynamic filters, aiming for a response time of less than 100 ms. Additionally, I will improve the existing forms with advanced validation, accessible feedback, and ensure at least 90% test coverage. I will use React 18 with TypeScript, Styled-Components, and Jest/React-Testing-Library for testing. I'll follow your Git workflow, delivering each task via descriptive pull requests, and will work closely with the Figma mockups and Jira backlog you provided. Ready to get started!

@kamran2012

I need to analyze this carefully: - Language: Spanish. Rule 12 says write in the same language, but the hard constraints say start with "Hello there," exactly. I'll write the body in Spanish but use the exact mandated opening and closing. - Format B (Insight-Led) fits well: this is a frontend build with specific technical requirements, and showing architectural insight will reassure. - No em dashes, no en dashes, no contractions, no banned words. - 550-800 characters total. Let me draft: --- Hello there, Integraré las APIs REST (autenticación, pagos, analítica) con manejo de errores y estados de carga bien estructurados, los dashboards con filtros dinámicos bajo 100 ms, y los formularios con validación avanzada y cobertura d Looking forward to potentially working together. Thanks, Kamran --- Let me count characters. I'll count carefully: "Hello there,\n\nIntegraré las

@webbookstudio

Hi there, We understand you're looking to enhance your React web application with key frontend functionalities, including REST API integrations, interactive elements, and form improvements, all while maintaining high standards of accessibility and testing 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. Our team has worked on similar projects, such as a music voting mobile app using React Native and a furniture store mobile shopping app with Flutter, showcasing our versatility in frontend development. What are your primary concerns regarding the integration of these new functionalities, and how do you envision the workflow and communication process throughout the project? Feel free to message us to discuss the details! — Webbook Studio

@ZohaibRoy

⭐⭐⭐⭐⭐ Enhance Your React App with Key Frontend Features ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project requirements and see you are looking for a React developer. You don’t need to look any further; Zohaib is here to help you! My team has completed over 50 similar projects for React applications. I will expand your existing code with REST API integrations, real-time interactive elements, and improved forms while ensuring high performance and thorough testing. ➡️ Why Me? I can easily enhance your React application as I have 5 years of experience in React development, focusing on API integration, real-time data handling, and form validation. My expertise includes TypeScript, Styled-Components, and testing frameworks like Jest. Additionally, I have a strong grip on Git for version control and Figma for design. ➡️ Let's have a quick chat to discuss your project in detail. I can provide samples of my previous work that showcase my skills. Looking forward to discussing this with you in chat. ➡️ Skills & Experience: ✅ React 18 ✅ TypeScript ✅ REST API Integration ✅ Real-time Dashboards ✅ Dynamic Filtering ✅ Error Handling ✅ Form Validation ✅ Jest Testing ✅ Styled-Components ✅ Git Version Control ✅ Figma Design ✅ Jira Management Waiting for your response! Best Regards, Zohaib

@KESHAVINFOTECH

Hi, I can help stabilize and complete your frontend integrations without disrupting the UI or test coverage. My focus would be on reviewing the current codebase, API contracts, and data flow to ensure reliable auth, payments, and analytics integration with proper loading states, error handling, and accessible validation from the start. I have experience working with React 18, TypeScript, and Styled-Components, and I pay close attention to responsive tables, dashboards with filters, Lighthouse performance, and WCAG compliance. I would also strengthen forms with unit and integration tests to reduce edge-case failures and silent errors. Initial focus: - Review existing structure and integration points - Connect APIs with robust loading/error handling - Improve forms and validation - Add unit and integration tests - Verify accessibility and performance Timeline: I can start with an initial audit quickly and then move into implementation in clear phases. One quick question: are the API request/response examples and error cases already fully defined for auth, payments, and analytics? Available to review via Freelancer chat or video call from 11 AM–8 PM IST.

@rizwange4

Hi There I just read your project details regarding the Project: Programador React Senior Frontend -- 2 Can we do a quick chat right now so that we can discuss the project briefly? I have 10 years of experience in PHP, WordPress, Woocommerce, Cake Php, Codeigniter, Magento, Shopify, Laravel, Adobe Photoshop, Adobe Illustrator, CorelDRAW, Bootstrap, HTML, CSS, Angular, Javascript, jQuery, and My SQL. I appreciate Muhammad Rizwan Atif

@teodorgeorge

Hola, Soy desarrollador con experiencia en React 18 + TypeScript y puedo ayudarte a ampliar tu frontend con integraciones robustas y componentes listos para producción. Puedo implementar: • Integración de APIs REST (auth, pagos, analítica) con manejo de errores y estados de carga • Dashboards y tablas en tiempo real con filtros dinámicos y buen rendimiento • Formularios avanzados con validación, accesibilidad WCAG 2.1 AA y feedback claro • Tests unitarios e integración con Jest + React Testing Library (cobertura ≥ 90%) • Optimización de performance para mantener respuestas rápidas (<100 ms en UI) Trabajo con Git en flujo de pull requests, documentación clara y revisión antes de merge a develop, siguiendo buenas prácticas y estructura escalable. Estoy disponible para entrevista y puedo adaptarme al backlog en Jira y diseños en Figma desde el primer día. Gracias

@SBITServices

Hi, I will enhance your React web application by integrating predefined REST APIs with robust error handling, real-time interactive elements like dashboards, and improved form functionalities. I will ensure WCAG compliance, high test coverage, and seamless integration into your existing workflow. Let's discuss how I can contribute to your project further. Regards, Sai Bhaskar

@intelliresponse

As a highly-seasoned Python and Full-Stack Developer, with a broad skillset in software development and proficient in languages such as Python, JavaScript, HTML, I can bring high-performance, result-oriented solutions to your React project. With 13+ years of experience, I have developed and successfully delivered complex projects that have helped businesses streamline their processes while optimizing efficiency. Specifically, my experience in Web Automation & Scraping and Web3 & Blockchain Development aligns perfectly with your integration needs for APIs and the desire to add interactive real-time elements to your React app. For instance, I have built powerful automation scripts, integrated cloud-based services like AWS for seamless API integrations, deployed smart contracts on platforms like Ethereum and Solana, and developed NFT marketplaces using similar tech stack. Most importantly, I am not just capable but also willing to go the extra mile to meet all your expectations. From delivering high-quality code with comprehensive pull request descriptions to ensuring a thorough fulfillment of the key acceptance criteria you've listed at the end of the project - I’ll make sure your project is delivered not just efficiently but effectively. Let's connect and discuss how we can bring value to your application.

@jvy7802

Hi, this is Jorge from IT GLOBAL SOLUTION LLC in Florida, U.S. I’ve built React/Next projects like yours—consuming predefined REST APIs with consistent loading/error states and improving UX with fast tables and dashboards. Your focus on integrating authentication, payments, and analytics with WCAG and Lighthouse quality is clear and scalable. My approach is to extend your existing code with a maintainable architecture: React 18 + TypeScript, Styled-Components, and a domain-based pattern for API services. I’ll set up typed API clients (fetch/axios), auth/refresh interceptors, and consistent error handling with clear retry rules. Then I’ll add a query/mutation layer for auth, payments, and analytics. For tables and dashboards with dynamic filters targeting response <100 ms, I’ll optimize rendering with memoization, pagination/virtualization when needed, caching, and fine-grained state control. UI will connect to endpoints via reusable hooks. For forms, I’ll implement accessible validation with proper label associations, aria-live announcements, keyboard navigation, and field-level errors. I’ll add Jest + React-Testing-Library aiming for ≥90% coverage (unit + integration). If your repo already uses develop and PR workflows, I’ll align CI so each PR includes component changes, tests, and brief API consumption notes. I deliver clean, maintainable code with Git integration (descriptive PRs) and lightweight documentation so your team can extend it easily.

@mgo5802a626eabec

Hola propietario del proyecto, Mi nombre es Matías, y soy tu candidato ideal para ampliar tu aplicación en React. Como desarrollador full-stack con 10+ años de experiencia, he trabajado intensamente con Javascript y React.js. Estoy altamente especializado en mejorar y expandir aplicaciones web en fase de desarrollo similar a ésta, lo que significa que puedo enfrentar todos los desafíos que implican tus requerimientos. Dominaré e integraré todas las APIs REST necesarias, asegurándome de que estén correctamente implementadas y documentadas. Mi experiencia con bibliotecas de manejo de estados en tiempo real como Redux garantizará un manejo sólido de errores y estados de carga. Además, tengo experiencia en el desarrollo de formularios avanzados, por lo que me aseguraré de mejorar la validación, feedback accesible y cobertura de pruebas al 90% o más como solicitas. ¡Estoy listo para hablar contigo! Discutamos tus necesidades y cómo puedo contribuir al desarrollo continuo y exitoso de tu aplicación React-in-refresh proyecto. Soy creyente también. Matías.

@johnallenvillan1

Hi, Los errores de integración en React 18 con TypeScript suelen aparecer en autenticación, pagos y analítica cuando no se separan bien estados, side effects y manejo de fallos. He pasado los últimos 4 años resolviendo exactamente este tipo de problema: he entregado un dashboard financiero con filtros en tiempo real y un flujo de formularios críticos con cobertura superior al 90%. El riesgo real aquí no es solo consumir APIs, sino mantener UI consistente, accesible y rápida mientras el código sigue creciendo. En un proyecto así, un junior suele romper el rendimiento o duplicar lógica de errores entre componentes. Yo integraré las APIs REST ya definidas con una capa clara de servicios y manejo centralizado de errores. Optimizaré dashboards y tablas con memoización, virtualización si aplica y actualización precisa del estado para sostener respuesta rápida. También reforzaré formularios con validación avanzada, feedback accesible y pruebas unitarias e integración en Jest y React Testing Library. Trabajaré en PRs pequeños y descriptivos, alineados con Figma y Jira, dejando cada cambio documentado para merge limpio en develop. Entrego código estable, medible y listo para producción. Best regards, John allen.

@MIndlabsAi6

Hey there, I'm Vishal Maharaj, a seasoned frontend developer based in Perth, Australia, with 25 years of experience in JavaScript, HTML5, React.js, and Agile Development. I'm passionate about taking on your React Senior Frontend project. I understand the need to enhance your React web application with key frontend functionalities, including API integrations, real-time interactive elements, and form improvements. I would approach the project by ensuring seamless integration of REST APIs, implementing dynamic filters, and enhancing form validation and accessibility. Let's discuss further details and kickstart this project. Feel free to initiate the chat. Cheers, Vishal Maharaj

@Hammadhassan21

Hola, sé que necesitas ayuda para ampliar tu aplicación React 18 con integraciones de API, paneles en tiempo real y formularios mejorados, y puedo hacerlo por ti. Estoy seguro de que quedarás satisfecho con el resultado. Si no, no pagas. Además, ofrezco 3 meses de soporte gratuito. Puedo integrar API REST para autenticación, pagos y análisis, crear paneles rápidos con filtros y mejorar los formularios con validación, accesibilidad y cobertura de pruebas usando Jest y React Testing Library. Todo se integrará sin problemas en tu configuración actual. Trabajaré con React, TypeScript y Styled Components, seguiré tu flujo de trabajo de Git con pull requests limpios y garantizaré un buen rendimiento y una interfaz de usuario de calidad. Consulta mi perfil para ver mis proyectos anteriores y mi portafolio: https://www.freelancer.com/u/Hammadhassan21 Estoy disponible para empezar de inmediato. Contáctame para hablar de los detalles y comenzar. Gracias.

@mughiraaa

Hello, Your project is a great match for my experience. I have worked on React, Next, TypeScript, REST API integration, interactive dashboards, form validation, accessibility, and testing in active production projects. I am comfortable joining an existing codebase and delivering clean pull requests that fit your workflow. I would love to schedule a short discussion to review your current progress, priorities, and upcoming tasks. I am confident we can complete this phase successfully and keep the project moving forward. I will share my portfolio in chat I look forward to hear from you. Thanks Best Regards, Mughira

@FizzaNadeemK

Hi, this is about turning your React build into a production-ready frontend where API flows, real-time UI, and testing discipline work together without breaking under scale. Your use of React 18 with TypeScript, API integrations for authentication, payments and analytics, plus Jira/Figma-driven pull requests and strict acceptance criteria around WCAG 2.1 AA and Lighthouse ≥ 90 points to a release process that needs engineering discipline, not just feature completion. I will integrate the REST APIs with robust loading and error states, build responsive real-time dashboards and filtered tables that stay fast under interaction, and strengthen your forms with advanced validation plus solid Jest and React Testing Library coverage aligned with your ≥ 90% target. Each change will be structured through clean PRs compatible with your develop branch workflow. I can communicate fluently in Spanish for the interview and ongoing coordination; regarding the collaboration setup, what state management approach are you currently using for shared application data across these new real-time components? Best regards, Fizza Nadeem K

@muhammadsaad90

Hola, Puedo incorporarme a un proyecto React ya en marcha y trabajar sobre el código existente sin afectar la arquitectura actual. Tengo experiencia con React 18, TypeScript, consumo de APIs REST, validaciones avanzadas, testing con Jest y React Testing Library, además de un flujo basado en Git, Jira y pull requests. Me enfocaré en crear componentes accesibles, optimizar el rendimiento y asegurar una integración limpia con las APIs y el diseño de Figma. No tengo inconveniente en realizar una entrevista en español antes de comenzar. Quedo atento para conversar sobre los detalles del proyecto. Saludos, Muhammad Saad K

@juanpablomacf

Hola, estuve revisando tu proyecto y me gustó que ya tengas React 18 con TypeScript, Figma, Jira y un flujo claro de PRs: aquí el reto no es empezar de cero, sino extender un frontend que ya va camino a producción sin romper accesibilidad, rendimiento ni calidad de tests. Lo abordaría conectando primero las APIs de autenticación, pagos y analítica con un manejo consistente de estados de carga, errores y reintentos, dejando tipados los responses y documentando cada hook o servicio. Después trabajaría los dashboards y tablas para que los filtros dinámicos sigan respondiendo por debajo de los 100 ms, cuidando Lighthouse ≥ 90 y WCAG 2.1 AA en cada componente. En formularios, reforzaría validaciones, mensajes accesibles y cobertura de pruebas con Jest/React Testing Library hasta superar el 90 %, integrando todo vía pull requests limpios sobre Git. He trabajado con React + Next, TypeScript y flujos ágiles similares, así que sé dónde suelen aparecer problemas de rendimiento, accesibilidad o testing y cómo prevenirlos desde el diseño de componentes. Si quieres, podemos tener la entrevista en español y definir juntos las primeras tareas para empezar a aportar valor desde el día uno.