UI React developer

Machine Learning Technologies, LLC; Chicago (IL); On-site; USD 130,000 - 180,000; Full time

Job summary

Machine Learning Technologies, LLC in Chicago seeks a senior front-end engineer to design, develop, and maintain enterprise-scale web applications using React.js. You will lead front-end architecture discussions and build reusable UI components that scale across teams.

The role requires deep expertise in JavaScript/TypeScript, HTML5, CSS3, and state management with Redux or Context API. You will collaborate with product, UX, and back-end teams, optimize performance, and contribute to CI/CD,

Qualifications

• 8+ years of front-end development experience.
• 5+ years of hands-on experience with React.js.
• Strong expertise in JavaScript (ES6+), TypeScript, HTML5, and CSS3.
• Experience with Redux, Context API, and state management frameworks.
• Solid understanding of responsive web design and cross-browser compatibility.
• Experience with REST APIs, Git, and Agile development methodologies.
• Strong problem-solving and communication skills.

Responsibilities

• Design, develop, and maintain enterprise-scale web applications using React.js.
• Lead front-end technical design and architecture discussions.
• Build reusable, scalable, and responsive UI components.
• Collaborate with product owners, UX designers, architects, and backend teams.
• Integrate RESTful APIs and third-party services.
• Optimize application performance, accessibility, and user experience.
• Conduct code reviews and promote front-end best practices.
• Troubleshoot and resolve complex UI and application issues.
• Contribute to CI/CD, testing, and deployment processes.

Skills

Frontend experience

React.js

JavaScript/TypeScript/HTML/CSS

Redux/Context API

Responsive design

REST APIs, Git, Agile

Problem-solving & communication

Job description

Key Responsibilities

• Design, develop, and maintain enterprise-scale web applications using React.js.
• Lead front-end technical design and architecture discussions.
• Build reusable, scalable, and responsive UI components.
• Collaborate with product owners, UX designers, architects, and backend teams.
• Integrate RESTful APIs and third-party services.
• Optimize application performance, accessibility, and user experience.
• Conduct code reviews and promote front-end best practices.
• Troubleshoot and resolve complex UI and application issues.
• Contribute to CI/CD, testing, and deployment processes.

Required Skills

• 8+ years of front-end development experience.
• 5+ years of hands-on experience with React.js.
• Strong expertise in JavaScript (ES6+), TypeScript, HTML5, and CSS3.
• Experience with Redux, Context API, and state management frameworks.
• Solid understanding of responsive web design and cross-browser compatibility.
• Experience with REST APIs, Git, and Agile development methodologies.
• Strong problem-solving and communication skills.

Preferred Skills

• Experience in Retail or eCommerce environments.
• Exposure to cloud platforms such as GCP, AWS, or Azure (not mandatory).
• Experience with Micro Frontend architecture.
• Familiarity with Jest, React Testing Library, or Cypress.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.