Principal Machine Learning Engineer, Ads Delivery

<div class="content-intro"><p><strong>About Pinterest:</strong></p> <p>Millions of people around the world come to our platform to find creative ideas, dream about new possibilities and plan for memories that will last a lifetime. At Pinterest, we’re on a mission to bring everyone the inspiration to create a life they love, and that starts with the people behind the product.</p> <p>Discover a career where you ignite innovation for millions, transform passion into growth opportunities, celebrate each other’s unique experiences and embrace the&nbsp;<a href="https://www.pinterestcareers.com/our-life/pinflex/">flexibility</a> to do your best work. Creating a career you love? It’s Possible.</p> <p>At Pinterest, AI isn't just a feature, it's a powerful partner that augments our creativity and amplifies our impact, and we’re looking for candidates who are excited to be a part of that. To get a complete picture of your experience and abilities, we’ll explore your foundational skills and how you collaborate with AI.</p> <p>Through our interview process, what matters most is that you can always explain your approach, showing us not just what you know, but how you think. You can read more about our AI interview philosophy and how we use AI in our recruiting process <a href="https://www.pinterestcareers.com/our-philosophy-on-ai-in-hiring/">here</a>.</p></div><p>Within the Ads Delivery team, we try to connect the dots between the aspirations of pinners and the products offered by our partners. In this role, you will be responsible for developing and executing a vision for the evolution of the Pinterest marketplace. You will design and implement systems that improve the ads delivery funnel, experiments that shape the utility function, auction mechanism design, ad allocation and for deriving new insights through analysis of the marketplace dynamics. In short, this is a unique position, where you’ll get the freedom to work to bring together pinners and partners in this unique marketplace.</p> <p><strong>What you’ll do:</strong></p> <ul> <li>Build and improve backend systems and statistical models that underlay the marketplace to maximize value for Pinners, Partners and Pinterest.</li> <li>Define and implement experiments to understand long term Marketplace effects.</li> <li>Develop strategies to balance long and short term business objectives.</li> <li>Drive multi-functional collaboration with peers and partners across the company to improve knowledge of marketplace design and operations.</li> </ul> <p>&nbsp;</p> <p><strong>What we’re looking for:</strong></p> <ul> <li>Degree in Computer Science, Machine Learning, Statistics or related field.</li> <li>10+ ye