Founding Engineer

ABOUT THE ROLE

Own and evolve the recommendation engine behind an advertising platform for AI entertainment and mobile games. This founding, full-stack role spans data pipelines, machine learning, and production serving, with direct impact on ad performance and user experience.

WHAT YOU'LL DO

• Design and ship a low-latency ad ranking system that selects campaigns and creative for each opportunity while balancing advertiser returns and user experience.
• Build data pipelines and feature infrastructure for continuous model training across clicks, installs, and conversions.
• Model user behavior using conversational signals, engagement history, and contextual information such as location, device, and session activity.
• Develop efficient serving infrastructure that meets sub-second latency requirements and tight per-impression cost targets.
• Create generative agents that produce playable and video ad variants, then feed performance data back into the recommendation engine.

WHAT WE'RE LOOKING FOR

• Experience appropriate to an early-career founding engineering role, with 0 to 3 years of experience.
• Shipped at least one machine learning or AI system to production, and built its data architecture, feature pipelines, and serving infrastructure end to end.
• Experience with recommendation systems, ranking, or advertising technology, and familiarity with PyTorch.
• Strong backend, machine learning, and infrastructure skills, demonstrated through production work or active projects.
• Experience in consumer technology, ad infrastructure, or an early-stage startup is valuable.
• Interest in gaming, including mobile games and reward ads; experience building games or playable ad formats is a plus.
• Experience with AI-native products and mentoring or leading engineers is helpful.

COMPENSATION & BENEFITS

Base salary: $200,000 to $250,000 annually. Visa sponsorship is not available.

LOCATION

On-site in San Francisco, California, five days per week.