Sr. Data Engineer - Data Products, Ad Platforms

Apple

Apple creates products that enrich people's lives, with the Advertising Platforms group enabling access to informative and imaginative content while helping publishers and developers promote and monetize their work.

Austin, TX, USA

Data

Senior Software Engineer

In-Person

5,000+ Employees

4+ years of experience

AI · Enterprise SaaS

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Description For Sr. Data Engineer - Data Products, Ad Platforms

At Apple, we work every day to create products that enrich people's lives. Our Advertising Platforms group makes it possible for people around the world to easily access informative and imaginative content on their devices while helping publishers and developers promote and monetize their work. Today, our technology and services power advertising in Search Ads in App Store and Apple News.

The Ad Platforms Data Products Engineering team is seeking a senior data engineer to join in developing the next generation of data products and analytical solutions. In this role, you will be a key member of the team driving the strategy, development, execution, and continuous improvement of core algo and analytical data products for Ad Platforms. You will be building the foundational data architectures and pipelines for our algo and data science capabilities.

Key responsibilities include:

Using modern tools and technologies to build reliable and performant pipelines and data products with extreme scale requirements
Solving tough problems across the technology spectrum, including designing, creating, and extending data storage, processing, and analytic solutions
Automating and optimizing existing analytic workloads by recognizing patterns of data and technology usage
Working in a rapidly changing environment and performing effectively in a sprint-based agile development environment

The ideal candidate will have experience with various engineering technologies such as AWS, EMR, EKS, Spark, Hive, SQL, Iceberg, Snowflake, Oracle, Airflow, and Datadog. They should have a strong background in data modeling, Scala, Python, Java, SQL, and other relevant languages and frameworks.

Join our world-class team of data engineers and contribute to building extraordinary experiences for our data consumers in this exciting role at Apple.

Last updated 5 months ago

Responsibilities For Sr. Data Engineer - Data Products, Ad Platforms

Build reliable and performant pipelines and data products with extreme scale requirements
Design, create, and extend data storage, processing, and analytic solutions
Automate and optimize existing analytic workloads
Work effectively in a sprint-based agile development environment
Develop next-generation data products and analytical solutions
Drive strategy, development, execution, and continuous improvement of core algo and analytical data products
Build foundational data architectures and pipelines for algo and data science capabilities

Requirements For Sr. Data Engineer - Data Products, Ad Platforms

Java

Python

B.S. in computer science, mathematics, or similar quantitative field
Minimum of 4-6 years professional experience
Demonstrated ability to implement and extend highly performant, resilient, and reliable data services
Experience working in cloud environments and familiarity with object stores and cloud-native data storage and processing frameworks
Extract Transform Load (ETL) and streaming experience using Spark, Kafka, Hive, Iceberg, or similar technologies at petabyte scale
Deep expertise in data modeling, Scala, Spark, Python, Java, SQL, Trino, Glue and/or other relevant languages and frameworks

Apple

Austin, TX, USA

Data

Senior Software Engineer

In-Person

5,000+ Employees

4+ years of experience

AI · Enterprise SaaS

Apple

Write a function using iteration to print numbers from 1 to a given number, then extend it to print only even numbers, and finally modify it to accept a step size.

Data Structures & AlgorithmsMedium

Write a function that uses iteration to print all numbers from 1 to a given number. For example, if the input is 5, the function should print: 1, 2, 3, 4, 5. Now, extend this function to print only the even numbers within that range. For instance, if the input is 10, the output should be: 2, 4, 6, 8, 10. Finally, modify the function to accept a second argument, which represents the step size. Using iteration, print numbers starting from 1 up to the given number, incrementing by the step size. As an example, given the number 15 and a step size of 3, the expected output is: 1, 4, 7, 10, 13. Be sure to handle edge cases and invalid inputs appropriately.

Arrays

Strings

Apple

How would you design a URL shortening system like TinyURL?

System DesignMedium

Let's design a system for URL shortening, like TinyURL. Assume a large-scale service. Please consider the following aspects in your design: Functional Requirements: The system should generate shorter URLs (a.k.a. short links) given longer URLs. Users should be able to navigate to the original URL by entering the short link in their browser. The system should be highly available. Non-Functional Requirements: The system should have low latency for both URL shortening and redirection. Short links should be relatively short (e.g., 6-8 characters). The system should be able to handle a large number of URL shortening and redirection requests. Capacity Estimation: Assume 100 million URLs are shortened per day. Assume 1 billion URL redirections per day. Estimate storage requirements for 5 years. Design Considerations: How would you generate unique short links? What data structures and databases would you use to store the URL mappings? How would you handle collisions when generating short links? How would you optimize for low latency redirection? How would you scale the system to handle the expected traffic? Walk me through your design, explaining your choices and the trade-offs you considered. Provide diagrams where necessary to illustrate the architecture.

Database Problems

Dynamic Programming

Graphs

Greedy Algorithms

Arrays

Strings

Apple

How do you handle a developer disagreeing with a bug report?

Behavioral

Let's say a developer doesn't agree that a reported bug is actually a bug. How would you handle this situation? Be specific. For example, imagine you're a QA engineer, and you find that a button on a webpage is slightly misaligned in a specific browser. You log this as a bug, but the front-end developer says it's 'within acceptable tolerances' and refuses to fix it. Or, perhaps a back-end developer claims that a specific edge-case error is so rare it's not worth the effort to address, even though you believe it violates the product's stated reliability goals. What steps would you take to resolve the disagreement while maintaining a positive working relationship and ensuring product quality? Consider the different approaches you could take based on the severity and impact of the potential bug.

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