Senior Principal Software Engineer, Ads Quality

The Company operates Snapchat a visual messaging app that enhances your relationships with friends family and the world and Specs Inc. a wholly-owned subsidiary dedicated to making computing more human in addition to Bitmoji Saturn and other digital services.

Were looking for a Senior Principal Software Engineer to lead the technical direction of Ads Quality within Snaps Ads Platform team with a focus on Ads Marketplace. Our marketplace connects advertiser demand with opportunities across Snapchat deciding how budgets are spent which ads are shown and when and where they appear.

As a senior individual contributor you will shape the multi-year strategy and architecture for bidding pacing auctions inventory and traffic optimization and ad reranking. You will work across engineering product data science and ML teams to improve advertiser performance and grow sustainable revenue while delivering a relevant engaging experience for Snapchatters.

What youll do:

• Set the multi-year technical strategy and architecture for Ads Marketplace connecting investments across bidding pacing auctions inventory traffic optimization and ad reranking.
• Design and scale bidding budget allocation and pacing algorithms that help advertisers achieve their goals with efficient spend and predictable delivery under changing marketplace conditions.
• Advance auction mechanisms pricing and allocation algorithms to improve advertiser value and marketplace efficiency accounting for interactions with ranking bidding and pacing.
• Lead inventory and traffic optimization across Snapchat surfaces improving ad load placement and demand allocation while balancing monetization with long-term user engagement.
• Develop ad reranking and slate optimization approaches that account for relevance diversity repetition and the surrounding user experience in partnership with Ads Ranking and consumer product teams.
• Establish objectives evaluation methods and experimentation standards that measure incremental marketplace impact account for feedback loops and interference and protect advertiser and user outcomes.
• Lead complex initiatives across teams resolve architectural trade-offs and dependencies and stay hands-on through prototyping critical implementation and production problem solving.
• Raise the engineering bar for reliability latency scalability and cost efficiency; mentor senior engineers and technical leaders and build shared technical foundations that enable teams to deliver independently.

Knowledge Skills & Abilities:

• Deep expertise in one or more areas of ads marketplace optimization with the ability to reason about interactions across bidding pacing auctions ranking and user experience.
• Strong foundations in algorithms optimization statistics and distributed systems with the judgment to choose practical approaches for real-time production environments.
• Excellent programming and software design skills including debugging performance analysis testing and operating highly available systems at scale.
• Ability to turn ambiguous business and technical problems into a coherent strategy measurable objectives and an executable roadmap across multiple teams.
• Strong technical judgment in balancing advertiser outcomes revenue user engagement system complexity and operational risk.
• Ability to influence across organizational boundaries communicate complex trade-offs clearly and develop senior engineers and technical leaders.

Minimum Qualifications:

• Bachelors degree in a technical field such as computer science mathematics or statistics or equivalent practical experience.
• 10 years of post-Bachelors software development experience; or a Masters degree in a technical field and 10 years of post-graduate software development experience; or a PhD in a related technical field and 7 years of post-graduate software development experience.
• 3 years of experience providing technical leadership or serving as a domain expert for a technical organization.
• Experience setting technical direction and leading complex engineering initiatives across multiple teams from architecture through production delivery and measurable impact.
• Experience architecting building and operating large-scale distributed systems.

Preferred Qualifications:

• Proven track record of delivering significant improvements in advertiser performance marketplace efficiency or revenue through ads bidding pacing auction or inventory optimization.
• Experience applying machine learning constrained optimization control theory or online learning to budget allocation and real-time marketplace decisions.
• Experience with auction theory mechanism design pricing or market dynamics in production advertising systems.
• Experience with ad reranking slate optimization ad load placement or frequency optimization that balances monetization with user engagement and long-term value.
• Experience designing marketplace experiments and causal evaluation methods that account for interference feedback loops delayed outcomes and ecosystem effects.

Default Together Policy at Snap: At Snap Inc. we believe that being together in person helps us build our culture faster reinforce our values and serve our community customers and partners better through dynamic collaboration. To reflect this we practice a default together approach and expect our team members to work in an office 4 days per week.

At Snap we believe that having a team of diverse backgrounds and voices working together will enable us to create innovative products that improve the way people live and communicate. Snap is proud to be an equal opportunity employer and committed to providing employment opportunities regardless of race religious creed color national origin ancestry physical disability mental disability medical condition genetic information marital status sex gender gender identity gender expression pregnancy childbirth and breastfeeding age sexual orientation military or veteran status or any other protected classification in accordance with applicable federal state and local laws. EOE including disability/vets.

We are an Equal Opportunity Employer and will consider qualified applicants with criminal histories in a manner consistent with applicable law (by example the requirements of the San Francisco Fair Chance Ordinance and the Los Angeles Fair Chance Initiative for Hiring where applicable).

Compensation

In the United States work locations are assigned a pay zone which determines the salary range for the position. The successful candidates starting pay will be determined based on job-related skills experience qualifications work location and market conditions. The starting pay may be negotiable within the salary range for the position. These pay zones may be modified in the future.

The base salary range for this position is $334000-$500000 annually.

The base salary range for this position is $317000-$475000 annually.

:

The base salary range for this position is $284000-$425000 annually.

This position is eligible for equity in the form of RSUs.

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Required Experience:

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