Frontend Engineer Internship

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Hiring Remotely in United States
Remote
Internship
Artificial Intelligence • Cloud • Information Technology • Consulting
The Role
Build high-performance, responsive, and accessible frontend applications across e-commerce, B2B, and internal tools using Next.js, React, and TypeScript. Implement design-system components, optimize Core Web Vitals, add animations, support A/B testing, collaborate in a monorepo with backend teams, and design interfaces for AI agents with real-time streaming and error handling.
Summary Generated by Built In
Overview: Building High-Performance User Experiences

The Frontend Engineer is essential for bringing our supply chain e-commerce vision to life by building high-performance, responsive, and accessible user interfaces. You will be responsible for developing the frontend applications for our diverse product ecosystem, including the customer-facing e-commerce storefront, the sophisticated B2B portal, and critical internal tools (collaboration, project management).

Key Responsibilities & Core Projects

You will own the client-side development, ensuring optimal user experience and front-end architectural quality.

  • UI Development & Implementation: Build and maintain user interfaces for multiple products using Next.js 14, React 18, and TypeScript. This includes the e-commerce flows (catalog, cart, checkout) and the complex interfaces for the internal WMS and OMS modules.

  • Design System & Accessibility: Implement components using Tailwind CSS and Radix UI to ensure visual consistency, performance, and adherence to WCAG accessibility standards.

  • Performance Optimization: Aggressively optimize frontend performance, focusing on fast page loads, core web vitals, and minimizing render blocking. Implement state management and use Framer Motion for smooth, optimized animations.

  • Testing & Experimentation: Conduct usability testing and build out the necessary architecture to support A/B testing on new features, such as checkout flow variations or personalization logic.

  • Monorepo Collaboration: Work within the Monorepo structure, collaborating closely with Backend Engineers to define and consume API contracts efficiently.

Required Technologies & Tools

Candidates must possess deep expertise and hands-on experience with our core frontend stack:

  • Core Stack: Expert proficiency in Next.js 14, React 18, and TypeScript (mandatory).

  • Styling & Components: Strong experience with Tailwind CSS and building accessible components with Radix UI.

  • Animation/UX: Experience implementing complex, high-performance UI/UX using Framer Motion.

  • Workflow: Experience working in a large Monorepo environment and consuming REST/GraphQL APIs from a Node.js/NestJS backend.

  • Testing: Experience with modern E2E and unit testing frameworks (e.g., Jest/Playwright).

AI Agent Focus

You will design the user experience for interacting with intelligent systems.

  • Agent Interfaces: Build the frontend interfaces (e.g., chat widgets, data visualization panels) for interacting with and receiving output from the AI agents.

  • Real-time Feedback: Implement real-time data streaming and error handling to provide immediate feedback to users engaging with the AI-powered customer support or workflow optimization tools.

Success Metrics & Career Path

Performance will be measured by:

  • Performance Metrics: Achieving and maintaining high scores on Core Web Vitals (Lighthouse/PageSpeed) across critical e-commerce pages.

  • UI Quality: Delivery of components that are visually flawless, responsive, and accessible (WCAG compliant).

  • Feature Velocity: Timely and efficient delivery of new features and fixes within the sprint cycles.

Mentorship Structure: Reports to the Technical Architect or Engineering Lead, working directly with UX designers and backend engineers for the Catalog, OMS, and B2B Portal modules.

Skills Required

  • Expert proficiency in Next.js 14, React 18, and TypeScript
  • Strong experience with Tailwind CSS and building accessible components using Radix UI
  • Experience implementing complex UI/UX animations with Framer Motion
  • Experience working in a large Monorepo and consuming REST and GraphQL APIs from a Node.js/NestJS backend
  • Experience with modern E2E and unit testing frameworks (e.g., Jest, Playwright)
  • Proven experience optimizing frontend performance and Core Web Vitals (Lighthouse/PageSpeed)
  • Knowledge and application of WCAG accessibility standards
  • Experience designing agent interfaces, real-time data streaming, and robust error handling for AI-driven features
  • Ability to conduct usability testing and implement A/B testing architecture for frontend features

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The Company

What We Do

Metasys is a global management and technology consulting firm that helps organizations improve performance through digital transformation. It develops strategies and technology solutions spanning AI, cloud, emerging technologies, digital engineering, intelligent manufacturing, supply chain, and managed services. The company serves industries including aerospace and defense, automotive, financial services, healthcare, software, retail, and utilities, combining technology, data, and industry expertise to deliver measurable impact.

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