Founding Engineer - Elo

Other

• Elo is the ad-network for consumer AI applications. We’ve gone from 0 to XXM users in our publisher network in 45 days of inception.
• With AI becoming the primary surface of interaction for internet users, it is inevitable that digital advertising will happen within AI experiences (including but not limited to chat).
• Elo is aggregating supply across consumer AI apps to help them monetize their users via ads and help advertisers reach the right audience at the right moment.
• We’re backed by top funds like PearVC and Audacious Ventures who’ve invested in billion dollar companies like Doordash and WorkOS . We also have advisors from mobile ad-tech and large consumer AI companies helping us in our mission. Founder is a published researcher and has previously built AI infrastructure at Google.
• Progress We’ve already solved the hardest cold start problem with ad networks: onboarding both advertisers and publishers. Now, we need to build and improve the core infrastructure to serve the most contextually relevant ads at the right moment.
• Role Founding engineer who’ll help us design the engine for ad delivery inside AI experiences and supporting infrastructure. The role guarantees high equity and competitive compensation ($170K-$220K)
• We’re already processing millions of requests per minute which is set to increase dramatically over the next few months.
• You’ll work on:
• Ad decisioning pipeline: candidate retrieval, scoring, filtering, and final ranking under strict latency SLAs
• Publisher SDK: lightweight integration that AI app developers embed in hours, not days
• Delivery infrastructure: pacing, frequency capping, budget management, and campaign throttling
• Observability stack: real-time dashboards for auction win rates, fill rates, revenue, and latency percentiles
• We look for evidence of technical excellence.
• If you’ve built any of the following, we’d love to chat:
• Your own AI agent harness or multi-agent workflow for complex tasks
• Low latency network infrastructure and data pipelines serving millions of requests per second
• Scalable and self-healing infrastructure with 1000s of compute workers spinning up and down with variable demand
• High frequency trading systems
• Or anything that you believe reflects high calibre of engineering design and low-level systems understanding.
• Care about your craft and operate ethically
• Take extreme ownership of outcomes
• Like to operate independently
• Ship extremely fast and effectively use AI to accelerate your impact
• Want to operate in a fun and social work environment
• Apply and you’ll hear back in less than a day.