Senior Frontend Engineer - aiR Assist Platform

Relativity is a leading legal data intelligence company building AI-powered cloud technology to help users organize data, discover the truth, and act with confidence in high-stakes legal matters. Their aiR Assist Platform team builds the frontend platform and infrastructure behind Relativity’s AI-powered products, focusing on scalable frontend architecture, micro-frontend enablement, reusable UI infrastructure, AI context-sharing, and developer experience.

Required:

• 4–6+ years of professional frontend development building large-scale web applications or enterprise platforms.
• Advanced proficiency in JavaScript (ES6+), TypeScript, and modern React ecosystem including hooks and concurrent patterns.
• Experience designing reusable UI infrastructure, shared libraries, and maintainable abstractions.
• Strong experience with modular architecture, code-splitting, lazy loading, and micro-frontend concepts including module federation and web-component composition.
• Experience with component libraries such as PrimeReact, Material UI, or comparable frameworks.
• Excellent responsive web design skills including semantic HTML, modern CSS, and cross-device layouts.
• Experience integrating RESTful APIs and/or GraphQL services with asynchronous data patterns.
• Familiarity with state management and data-fetching tools such as React Query and Zustand.
• Experience with build systems and monorepo tooling including Vite, Webpack, Nx, or Turborepo.
• Strong understanding of frontend performance optimization, browser compatibility, and web accessibility (WCAG).
• Experience developing and maintaining automated tests with tools like Vitest, Jest, Playwright, or Cypress.

Preferred:

• Experience building frontend infrastructure in cloud environments, especially Microsoft Azure.
• Experience contributing to design systems or shared enterprise component libraries.
• Experience with module federation and runtime composition of independently deployed frontend applications.
• Understanding of backend technologies like .NET or Node.js for cross-functional collaboration.
• Familiarity with AI-enhanced frontend solutions including chat interfaces, streaming responses, agentic context systems, and intelligent UI experiences.
• Interest or experience with AI/ML-assisted UI/UX, personalization, or generative interaction patterns.

• Design and implement scalable, performant frontend infrastructure using React 19, TypeScript, PrimeReact, and internal design systems.
• Advance micro-frontend strategy via web-component-based delivery and frontend composition.
• Evolve shared context registry and postMessage communication for AI context sharing.
• Drive frontend modularization with clean module boundaries, shared libraries, code-splitting, and Nx monorepo best practices.
• Build responsive, accessible user interfaces adhering to responsive design principles and WCAG standards.
• Collaborate with UX, product management, and backend teams integrating OpenAPI clients and AI services.
• Define and promote engineering standards for testing, accessibility, performance, and frontend quality.
• Own automated testing practices using Vitest, Playwright, visual regression testing, and Storybook.
• Improve CI/CD with progressive CDN delivery, automated quality gates, conventional commit versioning, and component lifecycle management.
• Mentor engineers and provide technical leadership across frontend platform initiatives.
• Explore and integrate AI-driven enhancements into internal tools and platform.