Principal Engineer, Shopping & Delivery Infra

Pinterest is looking for a Principal Engineer to lead the technical strategy and execution for its Indexing & Retrieval Infrastructure across Core, Ads, and Shopping.

The successful candidate will define and drive the long-term technical vision for indexing and retrieval infrastructure, aligning architecture investments to measurable improvements in freshness, quality, coverage, reliability, and cost efficiency.

Key responsibilities include:

• Defining and driving the long-term technical vision for indexing and retrieval infrastructure
• Leading cross-org initiatives to modernize Pinterest's indexing architecture
• Partnering with engineering, product, ML, and infrastructure leaders to align priorities and deliver shared platform capabilities
• Raising the technical bar for retrieval infrastructure by guiding system design, architecture reviews, and execution on complex platform changes
• Building shared platform capabilities such as common metrics, tuning surfaces, and debugging workflows
• Mentoring senior engineers and technical leaders across teams
• Using AI to accelerate analysis, prototyping, and iteration on system design options

Requirements:

• Deep expertise building and evolving large-scale indexing, search, recommendation, or ads retrieval systems
• Strong technical leadership experience operating across multiple teams or organizations
• Proven ability to lead large modernization efforts
• Exceptional systems thinking and problem-solving skills
• Strong communication skills
• Demonstrated experience using AI to improve speed and quality in day-to-day engineering workflows

The position is offered at a salary range of $285,452-$449,541 USD and is eligible for equity.