React Fullstack Engineer

About KYFEX:KYFEX is a leading AI consulting firm, dedicated to harnessing the power of artificial intelligence to revolutionize business operations across the globe. Our expertise in building cutting-edge web applications and AI-powered platforms positions us at the forefront of digital transformation, enabling us to deliver exceptional full-stack solutions to our clients. As we continue to grow, we're seeking a skilled Remote React Fullstack Engineer to join our dynamic team as a contractor and contribute to our mission of creating innovative, scalable, and user-centric applications.Job Responsibilities:- Design and develop responsive, high-performance web applications using React.js, Next.js, and modern JavaScript/TypeScript frameworks.- Build robust RESTful APIs and GraphQL services using Node.js, Express, or similar backend frameworks to support frontend applications.- Implement server-side rendering (SSR) and static site generation (SSG) strategies for optimal performance and SEO.- Create reusable component libraries and design systems that ensure consistency across multiple client projects.- Integrate AI/ML models and services into web applications, creating seamless user experiences for AI-powered features.- Design and implement database schemas using PostgreSQL, MongoDB, or similar databases, ensuring data integrity and optimal query performance.- Develop real-time features using WebSockets, Server-Sent Events, or similar technologies for collaborative and interactive applications.- Implement comprehensive testing strategies including unit tests, integration tests, and end-to-end testing using Jest, React Testing Library, and Cypress.- Collaborate with UX/UI designers to translate Figma/Sketch designs into pixel-perfect, accessible, and responsive interfaces.- Optimize application performance through code splitting, lazy loading, caching strategies, and bundle size optimization.- Implement authentication and authorization systems using JWT, OAuth 2.0, and modern identity providers.- Maintain CI/CD pipelines and participate in code reviews to ensure code quality and best practices.Minimum Requirements:- Bachelor's degree in Computer Science, Software Engineering, or a related technical field, or equivalent practical experience.- 4+ years of professional experience in full-stack web development with a strong focus on React.js ecosystem.- Expert-level proficiency in React.js, including hooks, context API, and state management solutions (Redux, Zustand, or MobX).- Strong experience with Next.js framework for production-grade applications, including API routes and middleware.- Proficiency in TypeScript and modern JavaScript (ES6+) with deep understanding of asynchronous programming patterns.- Solid backend development experience with Node.js and frameworks like Express, Fastify, or NestJS.- Experience with database design and management, including both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB, DynamoDB) databases.- Proficiency in responsive web design, CSS-in-JS solutions (Styled Components, Emotion), and modern CSS frameworks (Tailwind CSS).- Experience with version control systems (Git) and collaborative development workflows.- Strong understanding of web security best practices, including OWASP guidelines and secure coding principles.- Proven ability to work independently as a contractor, managing project timelines and client communications effectively.Preferred Skills:- Experience with cloud platforms (AWS, Google Cloud, or Azure) and serverless architectures.- Familiarity with containerization (Docker) and orchestration tools (Kubernetes).- Experience with micro-frontend architectures and module federation.- Knowledge of WebAssembly and performance optimization techniques for compute-intensive applications.- Experience integrating third-party APIs and services (Stripe, Auth0, SendGrid, Twilio).- Familiarity with AI/ML integration, including experience with OpenAI APIs, LangChain, or similar AI services.- Experience with mobile development using React Native for cross-platform applications.- Understanding of Web3 technologies and blockchain integration for decentralized applications.- Experience with monitoring and analytics tools (Sentry, LogRocket, Google Analytics, Mixpanel).- Knowledge of accessibility standards (WCAG) and experience building inclusive web applications.- Experience with headless CMS platforms (Contentful, Strapi, Sanity) and JAMstack architecture.- Strong portfolio demonstrating successful client projects and complex application development.Why Join KYFEX?- Work at the intersection of web development and AI innovation with a team of experts passionate about cutting-edge technology.- Enjoy the flexibility and benefits of a fully remote contractor position.- Build applications that leverage the latest in AI technology to solve real-world business challenges.- Gain exposure to diverse industries and cutting-edge projects while working with enterprise-grade clients.- Benefit from a culture of continuous learning, professional development, and collaborative achievement.To Apply: Interested candidates are invited to submit their resume, a cover letter detailing their experience with React and full-stack development, portfolio links showcasing recent projects, and GitHub profile to with "Remote React Fullstack Engineer Application" as the subject line.KYFEX is committed to diversity and inclusion and encourages applications from all qualified individuals, including those from diverse backgrounds and underrepresented groups.