Staff Front-End Engineer: JS Tooling & AI Enablement

Meta; Pierre (SD); On-site; USD 184,000 - 257,000; Full time

Job summary

Meta is seeking a Staff Software Engineer to shape the future of JavaScript tooling and developer infrastructure across Meta's family of products. You will design and implement JS compiler enhancements, build and improve developer tools, and integrate AI-powered capabilities into workflows to empower thousands of engineers at scale.

You will lead architecture discussions, mentor peers, and drive cross-team collaboration to deliver performant, scalable frontend systems with a strong emphasis on

Qualifications

• 8+ years of experience in front-end software engineering, including JavaScript, HTML, and CSS.
• Experience leading and delivering major front-end initiatives involving complex system architecture, cross-team coordination, and phased rollouts.
• Experience designing and building scalable, performant, and accessible user interface systems for products with large user bases.
• Experience using data, experimentation frameworks, and telemetry to drive front-end product and engineering decisions.
• Experience communicating technical decisions and trade-offs in writing to both technical and non-technical stakeholders.

Responsibilities

• Lead the design and implementation of compiler passes and JavaScript transformations that improve code quality, performance, and developer experience across Meta's codebase.
• Build and enhance developer tooling infrastructure including linters, test runners, and code analysis tools used by thousands of engineers.
• Integrate LLM-powered capabilities into developer workflows, accelerating code generation, automated fixes, and intelligent tooling assistance.
• Drive end-to-end delivery of major JS tooling initiatives, coordinating dependencies across engineering, product, and infrastructure teams.
• Identify and resolve complex performance bottlenecks in build systems, bundlers, and JavaScript execution to ensure fast developer feedback loops.

Skills

JavaScript

React

Front-end architecture

Performance optimization

AI in development

Mentoring

Tools

Linters

Test runners

Code analysis tools

Job description

Meta is seeking a Staff Software Engineer to shape the future of JavaScript tooling and developer infrastructure across Meta's family of products. You will design and implement JS compiler enhancements, build and improve developer tools, and integrate AI-powered capabilities into workflows to empower thousands of engineers at scale.

You will lead architecture discussions, mentor peers, and drive cross-team collaboration to deliver performant, scalable frontend systems with a strong emphasis on