Sr UI Developer - React

Job Title: Sr. UI Developer React

Work Location

Client Location: Dallas TX (Onsite)

Job Description

Core Requirements and Skills:

1. Proficiency in React

• Hooks and functional components: Mastery in using useState useEffect useContext useReducer etc.
• React Context: Indepth knowledge of state management and performance optimization strategies.
• React Router: Familiarity with dynamic routing in singlepage applications (SPAs).
• Component architecture: Experience with scalable and reusable component design.

2. JavaScript/PropTypes Mastery

• ES6 features: Destructuring async/await arrow functions modules etc.
• PropTypes for typechecking: Experience using proptypes 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 higherorder functions.
• Runtime validation: Knowledge of how to implement and manage runtime prop type validation in React applications.

3. CSS and Design Systems

• CSSinJS frameworks: Styledcomponents Emotion or similar libraries.
• Responsive Design: Deep knowledge of media queries Flexbox and CSS Grid.
• Sass or Less: Experience with preprocessing CSS for scalable styles.
• Design Systems: Ability to work with or create component libraries and design systems (e.g. Storybook).

4. Tooling and Build Systems

• Webpack: Strong grasp of bundling treeshaking and codesplitting.
• Babel: Understanding of JavaScript transpiling and polyfills for crossbrowser compatibility.
• CI/CD pipelines: Familiarity with integrating frontend code in continuous deployment environments (e.g. Jenkins GitLab CI).
• Linting and code formatting: ESLint Prettier and other code quality tools.

5. Testing and Quality Assurance

• Unit testing: Experience with Jest and Mocha.
• Component testing: Experience with React Testing Library or Enzyme.
• Endtoend (E2E) testing: Knowledge of tools like Cypress or Puppeteer for automated browser testing.

6. Version Control and Collaboration Tools

• Git: Mastery of Git workflows (e.g. Gitflow trunkbased development).
• GitHub/GitLab: Experience with code review PR processes and collaboration tools.
• Agile methodologies: Familiarity with Scrum or Kanban for iterative development.

7. Web Performance Optimization

• Performance tuning: Optimizing React components for speed and reducing rerenders (e.g. memoization lazy loading).
• Page load times: Experience with tools like Lighthouse or WebPageTest.

8. CrossBrowser Compatibility and Accessibility

• Crossbrowser testing: Ensuring compatibility across Chrome Firefox Safari and Edge.
• Accessibility (a11y): Understanding of ARIA standards and how to create inclusive UIs.

9. 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.

10. 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 NicetoHaves:

• Node.js or Java: Some backend knowledge for fullstack development.
• Microfrontend architecture: Understanding of how to break large applications into small manageable pieces.

Soft Skills:

• Communication: Ability to communicate complex technical concepts to nontechnical stakeholders.
• Leadership: Experience mentoring junior developers and leading technical discussions. Capable of driving projects from inception to completion even in ambiguous or fastpaced environments.
• Problemsolving: Strong analytical skills to address performance architecture and scalability issues.
• Collaboration: Ability to work effectively in a team contributing to both frontend and crossfunctional projects.
• Selfmotivation 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.