Senior Frontend Engineer II (Ads Manager)

Quick Facts

• Role: Senior Frontend Engineer II (L6) for the Ads Manager team
• Focus: Advertiser-facing web experience for creating, managing, and optimizing ad campaigns

Description

Lead the frontend technical roadmap and architecture for Ads Manager’s web applications. Build and maintain high-quality React UIs for campaign creation, management, reporting, and optimization, while evolving shared components, state management, and abstractions for scalability. Partner across Product, Design, Backend, and Data Science to deliver reusable UI abstractions and high-impact features with a strong emphasis on performance, accessibility, observability, and security-by-design.

Responsibilities

• Own frontend technical direction and lead large, multi-quarter initiatives shaping how advertisers plan, launch, and optimize campaigns
• Define architectural patterns and improve developer productivity and observability
• Deliver features across Campaign Activation, Creative & Reporting, Design System & Platform, Performance & Accessibility, and AI initiatives
• Partner with backend teams on API and data contracts for robust, observable, cost-efficient systems
• Champion observability, performance, reliability, and on-call readiness for critical flows (metrics, logging, tracing)
• Drive modernization and technical debt paydown (migrations and refactors)
• Embed security-by-design into frontend architecture and respond to significant security/reliability issues affecting Ads Manager UI
• Propose and lead team-wide and cross-team initiatives aligned with the EM
• Mentor and sponsor engineers up to L5; improve onboarding and team practices; resolve cross-team execution issues
• Help define how the team uses AI-assisted development tools (for code, tests, and refactors)

Requirements

• 8+ years building modern web applications with substantial ownership of complex, user-facing products
• Deep expertise in React (hooks, state management, performance tuning) in large codebases
• Strong frontend architecture skills: modularization, shared components, routing, data fetching, and error handling
• Experience designing and integrating with REST and/or GraphQL APIs
• Proven track record leading large, ambiguous, multi-stakeholder projects from design through rollout and operations
• Demonstrated impact on team productivity and code health via abstractions, tooling, testing, and CI improvements
• Monitoring and observability experience for web apps (e.g., Datadog or similar)
• Comfortable using AI-assisted developer tools in day-to-day work

Benefits

• Remote role with a Flex First work approach
• Highly market-competitive compensation and benefits
• Eligible for a new hire equity grant and annual refresh grants