Senior Machine Learning Engineer, Ads

About the role

As a Senior Machine Learning Engineer at Roblox, you will play a pivotal role in shaping the future of our advertising platform. This position is designed for individuals who are passionate about leveraging machine learning to enhance user experiences and drive business value. You will be part of a dynamic team that is focused on developing innovative solutions for ad ranking and personalized advertising. This is an exciting opportunity to contribute to a rapidly growing platform that connects millions of users worldwide.

Key facts

What you'll do

• Lead the design and execution of machine learning models specifically for ad ranking systems, ensuring they are efficient and scalable.
• Develop and implement large-scale recommendation algorithms that enhance user engagement and ad performance.
• Create detailed specifications for new features and enhancements to existing systems, ensuring clarity and alignment with business goals.
• Collaborate with cross-functional teams to ensure that all products are developed with a community-first mindset, prioritizing user needs.
• Balance the exploration of new technologies with practical applications, integrating research findings into Roblox's product offerings.
• Serve as a representative for Roblox in industry discussions and community engagements, promoting our vision and values.
• Analyze performance metrics and user feedback to refine machine learning models and improve ad effectiveness continuously.
• Mentor junior engineers, sharing your expertise and fostering a culture of learning and innovation within the team.

Requirements

• A minimum of 5 years of experience in designing and implementing scalable machine learning solutions for real-world applications.
• Proficiency in training and deploying transformer-based models, with a strong understanding of inference and product integration.
• A Bachelor's degree in Computer Science or a related field; advanced degrees are highly regarded.
• Proven ability to make significant technical decisions that impact multiple teams and projects.
• A user-centric approach to problem-solving, always considering the needs of both external users and internal stakeholders.
• Strong analytical skills, with the ability to simplify complex challenges and propose creative solutions.

Nice to have

• Experience with cloud-based machine learning platforms and tools.
• Familiarity with data privacy regulations and ethical considerations in machine learning.
• Knowledge of the gaming industry and its unique challenges related to advertising.
• Previous experience in a startup environment or high-growth tech company.

Skills & tools

• Proficient in programming languages such as Python and Java, with a strong foundation in machine learning libraries (e.g., TensorFlow, PyTorch).
• Familiarity with data processing tools and frameworks (e.g., Apache Spark, Hadoop).
• Experience with version control systems, particularly Git.
• Understanding of database technologies and data warehousing solutions.

Practical notes

This position is based in our San Mateo, California office, where employees are expected to work onsite from Tuesday to Thursday, with optional attendance on Mondays and Fridays. The starting salary for this role ranges from $259,030 to $311,430 USD, depending on various factors such as experience, education, and market conditions. In addition to base pay, full-time employees are eligible for equity compensation and a comprehensive benefits package.

Roblox is committed to fostering a diverse and inclusive workplace. We provide equal employment opportunities to all candidates and employees, prohibiting discrimination based on race, color, religion, age, gender, national origin, disability, and other protected characteristics. We also offer reasonable accommodations for candidates with disabilities or religious beliefs during the hiring process.

Please note that for this role, the company may not be able to employ candidates who require specific U.S. work authorization or support future H-1B visa sponsorship.

If you are excited about the prospect of shaping the future of advertising in a vibrant and innovative environment, we encourage you to apply and join our mission to connect a billion people with optimism and civility.

About the company

An online space lets people build and play games. Founded long ago by two creators, it grew into a shared world opened to everyone in the mid 2000s. Now reaching millions each day, it hosts games made by its users. A large share of young American children under sixteen are monthly players here. High daily activity shows a lasting community where creativity and shared play remain central.