Sr. UI Developer - React

Job Title: Sr. UI Developer - React Client Location: Dallas, TX - Onsite Hire Type: Contract Job Description Proficiency in React Hooks and functional components: Mastery in using useState, useEffect, useContext, useReducer, etc. React Context: In-depth knowledge of state management and performance optimization strategies. React Router: Familiarity with dynamic routing in single-page applications (SPAs). Component architecture: Experience with scalable and reusable component design. JavaScript/PropTypes Mastery ES6 features: Destructuring, async/await, arrow functions, modules, etc. PropTypes for type-checking: Experience using prop-types to enforce type safety in React components. Promises and async programming: Advanced understanding of asynchronous JavaScript. Functional programming concepts: Familiarity with immutability, pure functions, and higher-order functions. Runtime validation: Knowledge of how to implement and manage runtime prop type validation in React applications. CSS and Design Systems CSS-in-JS frameworks: Styled-components, Emotion, or similar libraries. Responsive Design: Deep knowledge of media queries, Flexbox, and CSS Grid. Sass or Less: Experience with pre-processing CSS for scalable styles. Design Systems: Ability to work with or create component libraries and design systems (e.g., Storybook). Tooling and Build Systems Webpack: Strong grasp of bundling, tree-shaking, and code-splitting. Babel: Understanding of JavaScript transpiling and polyfills for cross-browser compatibility. CI/CD pipelines: Familiarity with integrating front-end code in continuous deployment environments (e.g., Jenkins, GitLab CI). Linting and code formatting: ESLint, Prettier, and other code quality tools. Testing and Quality Assurance Unit testing: Experience with Jest and Mocha. Component testing: Experience with React Testing Library or Enzyme. End-to-end (E2E) testing: Knowledge of tools like Cypress or Puppeteer for automated browser testing. Version Control and Collaboration Tools Git: Mastery of Git workflows (e.g., Gitflow, trunk-based development). GitHub/GitLab: Experience with code review, PR processes, and collaboration tools. Agile methodologies: Familiarity with Scrum or Kanban for iterative development. Web Performance Optimization Performance tuning: Optimizing React components for speed and reducing re-renders (e.g., memoization, lazy loading). Page load times: Experience with tools like Lighthouse or WebPageTest. Cross-Browser Compatibility and Accessibility Cross-browser testing: Ensuring compatibility across Chrome, Firefox, Safari, and Edge. Accessibility (a11y): Understanding of ARIA standards and how to create inclusive UIs. API Integration and Data Fetching RESTful APIs: Proficiency in consuming and integrating APIs. API Contracts: Experience collaborating with API teams to create/modify contracts based on the needs of the UI. Experience with Modern Development Environments VSCode or WebStorm: Proficiency with modern development tools, extensions, and workflows. Debugging: Strong debugging skills using browser DevTools and tools like React Developer Tools. Additional Skills and Nice-to-Haves: Node.js or Java: Some backend knowledge for full-stack development. Micro-frontend architecture: Understanding of how to break large applications into small, manageable pieces. Soft Skills: Communication: Ability to communicate complex technical concepts to non-technical stakeholders. Leadership: Experience mentoring junior developers and leading technical discussions. Capable of driving projects from inception to completion, even in ambiguous or fast-paced environments. Problem-solving: Strong analytical skills to address performance, architecture, and scalability issues. Collaboration: Ability to work effectively in a team, contributing to both front-end and cross-functional projects. Self-motivation and autonomy: Ability to take ownership of tasks, work independently, and stay motivated without constant supervision. Skilled at managing time effectively, prioritizing tasks, and proactively addressing challenges to meet deadlines. Code Review Expertise: Skilled in conducting thorough, constructive code reviews, ensuring code quality, consistency, and best practices. Able to provide clear feedback, mentor teammates, and foster a collaborative development environment while balancing code maintainability with project timelines.