AIML - Core Infrastructure Engineering, Core Infrastructure

Do you want to make products smarter for our users? The Core Infra team is looking for an experienced software engineer to work on core infrastructure for information intelligence. We build systems to connect users to information as part of the wider Intelligence initiative. You will work closely with product teams and information intelligence teams to deliver reliable, scalable, and efficient infrastructure that powers products for billions of users.

We design and build infrastructures to support features that empowers billions of Siri users. Our team processes trillions of links to find the best content to surface to users through search. We also analyze pages to extract critical features for indexing, ranking. We apply statistical analysis to improve link selection, freshness, retrieval rates, extraction quality, and many others. You'll have the opportunity to work with large scale systems with trillions of rows and many petabytes of data and incredible complexity.

Key Responsibilities

• Design, develop, and operate the large-scale backend infrastructure that powers information intelligence and search features
• Optimize massive-scale data pipelines to process large volumes of data
• Collaborate closely with product, search, and machine learning teams to define infrastructure requirements and deliver robust solutions
• Ensure the health and performance of critical infrastructures by monitoring key metrics, troubleshooting complex issues, and participating in an on-call rotation

Key Qualifications

• BS, MS, or Ph.D. in Computer Science or a related field, or equivalent experience
• Proven experience designing, building, and operating large-scale distributed systems and backend services (e.g., using cloud platforms like AWS/GCP and container orchestration like Kubernetes)
• Strong software engineering fundamentals in data structures, algorithms, and system design
• Solid understanding of networking protocols (e.g., TCP/IP, DNS, HTTP) and their application in building large-scale systems
• Excellent communication and collaboration skills to work effectively with cross-functional teams

Preferred Qualifications

• Experience with large-scale data processing, information retrieval, web search, or ranking systems

Additional Requirements

Base pay is one part of our total compensation package and is determined within a range. This provides the opportunity to progress as you grow and develop within a role. The base pay range for this role is between $171,600 and $302,200, and your base pay will depend on your skills, qualifications, experience, and location.

Employees also have the opportunity to become a shareholder through participation in discretionary employee stock programs. Employees are eligible for discretionary restricted stock unit awards, and can purchase stock at a discount if voluntarily participating in the Employee Stock Purchase Plan. You’ll also receive benefits including: Comprehensive medical and dental coverage, retirement benefits, a range of discounted products and free services, and for formal education related to advancing your career, reimbursement for certain educational expenses — including tuition. Additionally, this role might be eligible for discretionary bonuses or commission payments as well as relocation. Learn more about Benefits.

Note: Benefit, compensation and employee stock programs are subject to eligibility requirements and other terms of the applicable plan or program.

This is an equal opportunity employer that is committed to inclusion and diversity. We seek to promote equal opportunity for all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, Veteran status, or other legally protected characteristics. Learn more about your EEO rights as an applicant.