Machine Learning Engineer

AppLovin enables developers to grow their business. Businesses rely on AppLovin’s market leading technologies to solve their mission-critical functions with a powerful, full stack solution including user acquisition, monetization and measurement. AppLovin is headquartered in Palo Alto, California with several offices globally.
AppLovin was named one of the Best Workplaces in Advertising & Marketing 2022 by Fortune, one of the Hottest Adtech Companies of 2021 by Business Insider, and a Certified Great Place to Work in 2021 and 2022. Fortune recognized AppLovin as one of the Best Workplaces in the Bay Area 2022, alongside The San Francisco Business Times and Silicon Valley Business Journal who have also awarded AppLovin one of the Bay Area’s Best Places to Work for the past four years. Our team members are regularly recognized for their work and leadership, including recent award wins for San Francisco Business Times’ Outstanding LGBTQ+ Leaders 2022, Business Insider’s Rising Stars of Adtech 2022, Glassdoor’s Top CEOs 2019, and the Women in Content Marketing Awards 2021.
Data driven decision-making is integral to marketing, game development and operations at Applovin. We’re looking for sharp, disciplined, and highly quantitative machine learning engineers with big data experience and a passion for digital marketing and game technologies to help drive informed decision-making. You will work with top-talent and cutting edge technology on, for example, but not limited to, performance marketing and next-generation games and have a unique opportunity to turn your insights into products influencing billions of users. The potential candidate will have an extensive background in distributed training frameworks, will have experience to deploy related machine learning models end to end, and will have some experience in data-driven decision making of machine learning infrastructure enhancement. This is your chance to leave your legacy and be part of a highly successful and growing company!

What you'll be doing:

• Collaborate with colleagues across multiple teams (Data Science,  Operation Engineering and Data Engineering) on unique machine learning system challenges at scale.
• Leverage distributed training systems to build scalable machine learning pipelines including ETL, model training and deployments in Real-Time Bidding space. 
• Design and implement solutions to optimize distributed training execution in terms of model hyperparameter optimization, model training/inference latency and system-level bottlenecks.  
• Research state-of-the-art machine learning infrastructures to improve data healthiness, model quality and state management during the lifecycle of ML models refresh.
• Optimize integration between popular machine learning libraries and cloud ML and data processing frameworks. 
• Build Deep Learning models and algorithms with optimal parallelism and performance on CPUs/ GPUs.

Your background and who you are:

• MS or Ph.D. in Computer Science, Software Engineering, Electrical Engineering, or related fields.
• 2+ years of industry experience with Python in a programming intensive role.
• 1+ years of experience with one or more of the following machine learning topics: classification, clustering, optimization, recommendation system, graph mining, deep learning.
• 2+ years of industry experience with distributed computing frameworks such as Hadoop/Spark, Kubernetes ecosystem, etc.
• 2+ years of industry experience with popular deep learning frameworks such as Spark MLlib, Keras, Tensorflow, PyTorch, Caffe, etc.
• 2+ years of industry experience with major cloud computing services.
• Prior experience with ads product development (e.g., DSP/ad-exchange/SSP) and established a track record of innovation would be a big plus.
• An effective communicator – you shall be an ambassador of Applovin ML engineering at external forums and also have the ability to explain technical concepts to a non-technical audience. 

Preferred Qualifications:

• Contributions to open source (e.g., C++/python/R packages) would be a plus.
• Proficient C/C++ coding experience.
• Motivation to make downstream modelers’ work smoother. 

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