Mandatory Skills:

• Expertise JavaScript, including ES6+ features
• Strong proficiency in React.js and its core principles (JSX, components, state management)
• Experience with popular React libraries and frameworks (e.g., Redux, React Router, Next.js)
• Experience in building and deploying React applications
• Understanding of RESTful APIs and data fetching techniques 
• Experience with unit testing and integration testing frameworks (e.g., Jest, Enzyme)
• Strong understanding of HTML, CSS, and browser-based debugging
• Experience with version control systems (e.g., Git)

Desired Skills:

• Experience with TypeScript
• Experience with GraphQL
• Experience with front-end build tools 
• Experience with performance optimization techniques
• Familiarity with accessibility standards
• Experience with Agile development methodologies
• Experience with cloud platforms

Roles & Responsibilities

• Develop and maintain high-quality React.js applications
• Collaborate with designers to create user-friendly and engaging interfaces
• Write clean, maintainable, and well-documented code
• Participate in all phases of the software development lifecycle
• Troubleshoot and debug issues effectively
• Stay updated on the latest trends and technologies in the React ecosystem
• Contribute to the improvement of development processes and best practices