Associate Frontend Engineer Jobs in Chicago, IL (NOW HIRING)

Interview : Video
Visa : USC, GC
This is hybrid from day-1 ( Need only local candidates )
Description :
former Hyatt preferred
submit with Date of birth
Description: PURPOSE:
Care is central to Hyatt's brand, driving our commitment to personalized guest experiences. To deliver care in a fast-paced world, we must deeply understand guest preferences and context to enable tailored digital experiences that differentiate Hyatt.
Must have:
• WS Certification (Developer Associate or related)

• Playwright
• Typepress
• React DnD, dnd-kit). • Develop advanced UI interactions, including optional integration of drag-and-drop libraries (e.g., React DnD, dnd-kit).
• Adobe Analytics and/or Google Analytics to measure engagement and user journeys.
• Datadog RUM
• • Configure and optimize build pipelines using Webpack.
  • Contribute to CI/CD workflows using GitLab pipelines, supporting automated testing, build validation, and deployment processes.
  • Partner with DevOps to ensure reliable, repeatable, and observable deployments across environments.
  • Working knowledge of AWS services (S3, CloudFront, API Gateway).
  • Exposure to AWS Lambda and serverless architectures is a plus.
  • Develop and maintain unit tests using Vitest to ensure code reliability and maintainability.
  • Write component and hook tests using React Testing Library to validate UI behavior and user interactions.
• data fetching strategies.
• Tailwind CSS,

POSITION RESPONSIBILITIES/ ESSENTIAL FUNCTIONS:
Front-End Architecture & Engineering Leadership
• Proactively identify, surface, and help prioritize technical debt, modernization efforts, and architectural improvements to ensure long-term application health and developer productivity.
• Drive performance optimization efforts and address systemic bottlenecks across the front-end ecosystem.
• Guide architectural evolution by balancing delivery speed with sustainable engineering practices.
• Mentor engineers in front-end best practices, scalable design patterns, testing strategies, and code quality standards.
• Participate in architectural reviews and influence front-end and cross-platform technology direction.
Application Development
• Design, develop, and maintain scalable web applications using React, TypeScript, and Node.js.
• Build modular, reusable UI components using React (functional components, hooks, context, advanced composition patterns).
• rchitect state management solutions using Redux and React Query for efficient server-state synchronization, caching
• Implement responsive and modern user interfaces using CSS3, and HTML5.
• pply Typescript best practices and modern JavaScript standards.
Observability, Analytics & Continuous Improvement
• Integrate and leverage observability tools such as Datadog (including Datadog RUM) to monitor front-end performance, errors, and user behavior.
• Review performance metrics (e.g., Core Web Vitals, latency, error rates) and translate insights into actionable improvements, establishing a strong feedback loop between production behavior and code quality.
Experimentation & Feature Management
• Implement and support A/B and multivariate testing to validate product hypotheses and improve user experience.
• Utilize feature flagging tools such as LaunchDarkly to enable controlled rollouts and safe experimentation.
• Partner cross-functionally to ensure experimentation results inform technical and architectural decisions.
API & Integration
• Integrate applications with RESTful APIs and collaborate with backend teams to define robust API contracts.
• Handle asynchronous workflows, error boundaries, retries, caching strategies, and optimistic updates using React Query.
• Ensure seamless integration across diverse computing environments.
Testing & Quality Assurance
• Develop and maintain unit tests using Vitest to ensure code reliability and maintainability.
• Write component and hook tests using React Testing Library to validate UI behavior and user interactions.
• Implement end-to-end and integration testing using Playwright/Cypres or similar UI testing tools.
• Establish testing best practices including mocking strategies, coverage thresholds, and CI test automation.
• Enforce high engineering standards through code reviews and technical documentation.
• Participate in code reviews to enforce quality standards, performance optimization, and accessibility compliance.
• Ensure applications meet enterprise-grade expectations for stability, scalability, and maintainability.
Collaboration & Product Partnership
• Collaborate closely with Product Managers, UX Designers, and backend engineers
EXPERIENCE:
• 5+ years of professional front-end engineering experience.
• Strong expertise in:
o React
o TypeScript / JavaScript (ES6+)
o Redux
o React Query
o Node.js
o Tailwind CSS
o HTML5, CSS3
o Webpack
• Experience integrating and consuming RESTful APIs.
• Experience building scalable enterprise web applications.
• Strong understanding of performance optimization techniques and debugging complex front-end systems.
• Experience with unit testing frameworks and Playwright for end-to-end testing.
• Familiarity with drag-and-drop libraries is a plus.
• Working knowledge of AWS and serverless concepts is a plus.
• Experience working in Agile development environments.
• Strong problem-solving, communication, and technical leadership skills.
EDUCATION:
• Bachelor's degree in Computer Science, Engineering, Information Systems, or equivalent practical experience.
• Candidates with strong hands-on experience in lieu of formal education