UI Developer - React/Angular Frontend Specialist

Quantum Technologies. LLC; Philadelphia (Philadelphia County); On-site; USD 85,000 - 110,000; Full time

Job summary

Quantum Technologies. LLC strives to deliver modern front-end experiences by building reusable components and robust SPAs using React or Angular. Designers' Figma/Adobe XD to UI conversions, responsive layouts, and RESTful API integrations are core parts of this role.

The candidate will optimize performance, implement state management, ensure accessibility, and participate in Agile/Scrum ceremonies with cross-functional teams.

Qualifications

• Hands-on experience with React.js or Angular.
• Experience with Bootstrap, Material UI, and Tailwind CSS.
• Knowledge of REST APIs and JSON.
• Understanding of responsive and mobile-first development.
• Experience with Git, GitHub, and version control.
• Knowledge of Jest, Jasmine, or Cypress.
• Familiarity with Webpack, Vite, and npm.

Responsibilities

• Build reusable UI components and front-end modules.
• Develop single-page applications using React.js, Angular, or Vue.js.
• Convert Figma and Adobe XD designs into functional user interfaces.
• Implement responsive layouts using CSS Grid, Flexbox, and Bootstrap.
• Integrate RESTful APIs and backend services into front-end applications.
• Optimize application performance, rendering, and loading speed.
• Implement state management using Redux, Context API, or NgRx.
• Follow accessibility standards and UI development best practices.
• Perform debugging, unit testing, and code reviews.
• Collaborate with UX designers, backend developers, and product teams.
• Maintain coding standards and participate in Agile/Scrum ceremonies.

Skills

React.js

Angular

Bootstrap

Material UI

Tailwind CSS

REST APIs

JSON

Responsive design

Git / GitHub

Jest / Jasmine / Cypress

Webpack / Vite

Job description

Quantum Technologies. LLC strives to deliver modern front-end experiences by building reusable components and robust SPAs using React or Angular. Designers' Figma/Adobe XD to UI conversions, responsive layouts, and RESTful API integrations are core parts of this role.

The candidate will optimize performance, implement state management, ensure accessibility, and participate in Agile/Scrum ceremonies with cross-functional teams.