Software Engineer III, ML Infrastructure, Pixel

Google

Google develops next-generation technologies that change how billions of users connect, explore, and interact with information.

Warsaw, Poland

Machine Learning

Mid-Level Software Engineer

Contact Company

2+ years of experience

Description For Software Engineer III, ML Infrastructure, Pixel

Google is seeking a Software Engineer III for their ML Infrastructure team working on Pixel devices. This role is part of the Pixel Biometrics team, which provides seamless biometric authentication for the Pixel lineup of devices. The team has achieved significant milestones in NIR face authentication and developed the world's most secure RGB face authentication using commodity hardware.

The position requires expertise in building large-scale infrastructure and ML systems, with a focus on developing data ingestion pipelines and performance evaluation tools. You'll be working at the intersection of ML, data science, and engineering to create secure, privacy-preserving AI features for Pixel devices.

As part of Google's Devices & Services team, you'll contribute to combining the best of Google AI, Software, and Hardware to create radically helpful experiences for users. The role involves handling critical responsibilities like managing face authentication model deployments and expanding the authentication infrastructure to support various devices and ML teams.

The ideal candidate should have strong programming skills in languages like Python, Java, or Go, with experience in large-scale systems and distributed computing. You'll be working in an environment that values innovation, technical excellence, and the ability to solve complex problems at scale.

This position offers the opportunity to work on cutting-edge technology that directly impacts millions of users' daily interactions with Pixel devices. You'll be part of a team that's pushing the boundaries of what's possible in biometric authentication while maintaining the highest standards of security and privacy.

Last updated 2 months ago

Responsibilities For Software Engineer III, ML Infrastructure, Pixel

Develop large scale data ingestion and processing pipelines
Build systems to fine-tune, evaluate, and visualize the performance of ML systems
Handle releasing face authentication model drops for in-market and unreleased Pixel devices
Expand existing authentication infrastructure stack to support other devices and ML teams

Requirements For Software Engineer III, ML Infrastructure, Pixel

Python

Java

Bachelor's degree or equivalent practical experience
2 years of experience building and developing large-scale infrastructure, distributed systems or networks
2 years of experience with software development in one or more programming languages, or 1 year of experience with an advanced degree
2 years of experience with data structures or algorithms
Experience coding in C, C++, Java, Python, or Go
Master's degree or PhD in Computer Science or related technical fields (preferred)
2 years of experience with performance, large scale systems data analysis, visualization tools, and/or debugging (preferred)
Experience developing accessible technologies (preferred)
Proficiency in code and system health, diagnosis and resolution, and software test engineering (preferred)

Google

Google develops next-generation technologies that change how billions of users connect, explore, and interact with information.

Warsaw, Poland

Machine Learning

Mid-Level Software Engineer

Contact Company

2+ years of experience

Google

How do you find all common parents for a set of nodes on a tree?

Data Structures & AlgorithmsMedium

Given a tree data structure, and a set of nodes within that tree, how do you find all of their common parents? For example, consider a tree where node A is the root, and it has children B and C. Node B has children D and E, and node C has a child F. If the input set of nodes is {D, E, F}, then the common parents would be {B, C, A}. If the input set of nodes is {D, E}, then the common parents would be {B, A}. Design an algorithm to efficiently find these common parents, considering potential optimizations for different tree structures and sizes.

Trees

Recursion

Graphs

Google

Design a rate limiter for an API.

System DesignMedium

Let's design a rate limiter for an API. The rate limiter should: Limit the number of requests a user can make to an API within a given time window. Support different rate limits for different users or API endpoints. For example, a free tier user might be limited to 10 requests per minute, while a premium user can make 100 requests per minute. Similarly, some API endpoints might have lower rate limits than others due to resource constraints. Be highly performant to avoid adding significant latency to API requests. Be scalable to handle a large number of users and API requests. Be reliable and prevent accidental overloads that could cause service disruptions. Describe the architecture, algorithms, and data structures you would use to implement such a rate limiter. Consider the following: How would you store the rate limit counters for each user or endpoint? What algorithm would you use to determine whether a request should be allowed or throttled? How would you handle distributed rate limiting across multiple servers? How would you ensure the rate limiter is resilient to failures? As an example, imagine a scenario where a social media platform wants to prevent users from spamming their API with excessive requests to post updates. The platform has millions of users and thousands of API endpoints. Some users pay for premium access with higher request limits. How would you design a robust and efficient rate limiter to handle this scale and these varying requirements?

Arrays

Strings

Two Pointers

Stacks

Binary Search

Sliding Windows

Linked Lists

Trees

Recursion

Graphs

Dynamic Programming

Greedy Algorithms

Bit Manipulation

Database Problems

Google

Why do you want to work for Google?

Behavioral

Why do you want to work for Google? To provide a more comprehensive answer, consider these points: Google's Mission and Values: How do Google's mission to organize the world's information and make it universally accessible and useful align with your own values and career aspirations? Can you provide specific examples of Google's products or initiatives that resonate with you and explain why? Google's Culture of Innovation: Google is renowned for its innovative culture. What aspects of this culture appeal to you most? For instance, are you drawn to Google's emphasis on experimentation, its commitment to open-source projects, or its support for employee creativity through initiatives like 20% time? How do you believe you would contribute to and thrive in such an environment? Opportunities for Growth and Learning: Google offers numerous opportunities for professional development and learning. Are there specific technologies, teams, or projects at Google that you are particularly interested in? Have you researched specific Google teams doing work that aligns with your interests and skills? How do you envision your career progressing at Google, and what skills or knowledge do you hope to gain? Impact and Scale: Google's products and services have a global impact, reaching billions of users. How does the opportunity to work on projects with such a wide reach motivate you? Can you provide examples of how you would approach challenges related to scalability, reliability, and user experience in a global context? Specific Skills and Contributions: What specific skills and experiences do you bring that would make you a valuable asset to Google? Highlight your technical expertise, problem-solving abilities, teamwork skills, and any relevant accomplishments. For example, can you discuss a time when you successfully tackled a challenging technical problem or collaborated effectively on a complex project? By addressing these points with specific examples and demonstrating a genuine interest in Google's mission, culture, and opportunities, you can provide a compelling and insightful answer to the question of why you want to work there.

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