.Principal Machine Learning Engineer, Ad RankingLocations: Los Angeles, California; Seattle - 2025 1st Avenue; Palo Alto - 395 Page Mill RdTime Type: Full timePosted: 30+ Days AgoJob Requisition ID: H224SWEMLA11Snap Inc is a technology company. We believe the camera presents the greatest opportunity to improve the way people live and communicate. Snap contributes to human progress by empowering people to express themselves, live in the moment, learn about the world, and have fun together. The Company's three core products are Snapchat, Lens Studio, and its AR glasses, Spectacles.Snap Engineering teams build fun and technically sophisticated products that reach hundreds of millions of Snapchatters around the world, every day. We're deeply committed to the well-being of everyone in our global community, which is why our values are at the root of everything we do. We move fast, with precision, and always execute with privacy at the forefront.We're looking for a Principal Machine Learning Engineer to join the Ad Ranking team at Snap!What you'll do:Drive the technical roadmap of the Ad Ranking team, advance the core ML capabilities of the ad optimization stack, and support various business verticals including app/web monetization and dynamic product ads.Design, implement, and scale critical machine learning models to support Snap's monetization strategies.Collaborate with cross-functional teams to set and align on machine learning strategies to meet company objectives.Stay up-to-date with the latest technology in machine learning and apply this knowledge to tackle complex problems in innovative ways.Collaborate with leadership to up-level the ML tech stack and improve the performance of the organization.Work across teams to understand product requirements, evaluate trade-offs, and deliver the solutions needed to build innovative products or services.Advocate for and apply best practices when it comes to availability, scalability, operational excellence, and cost management.Provide technical direction that influences the entire ML community.Knowledge, Skills & Abilities:Strong understanding of machine learning and deep learning approaches and algorithms, and their applications to advertising, recommendation, and/or search domain.Experience setting the direction for a team whose primary output is online ranking/recommendation models.Ability to design, train, and optimize advanced machine learning models.Excellent programming and software design skills.Ability to proactively learn new concepts and technology and apply them at work.Skilled at solving ambiguous problems and leading and executing complex technical initiatives.Strong collaboration and mentorship skills.Minimum Qualifications:Bachelor's in a technical field such as computer science, mathematics, statistics or equivalent years of experience.11+ years of industry machine learning experience