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Staff Backend Engineer, Ads Recommender System

Unity · San Francisco, CA, USA · On-site

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About Unity

Develop, deploy, and grow with Unity, the world’s leading 3D game engine. Build for all major platforms from mobile, to PC and console as well as XR, acquire players, monetize your game, and power industrial applications. Backed by Sequoia.

About the role

Offerwall by Unity is a leading mobile advertising and monetization platform that helps game developers maximize revenue and engage users through rewarded experiences. For over a decade, we've connected millions of players with offers that provide tangible in-app value, and we're now building the next generation of that product. Found on 1752vc Careers, the job board for startup and VC roles.

What they're looking for

  • Technical Leadership: Track record of owning a significant backend system, setting direction, making the architectural calls, and getting it delivered through others as well as yourself
  • High-scale distributed systems: Demonstrated ability to design and ship large-scale, highly available, latency-sensitive distributed services with complex business logic
  • Core Technologies: Strong proficiency in backend development using Go or Java (or clear ability to become effective in Go quickly). Working knowledge of gRPC with a willingness to adapt to the best tool for the job
  • Observability & Data Streaming: Practical experience with observability platforms (logging, metrics, monitoring/tracing) and message bus technologies for managing complex data streams
  • Cross-team influence & mentorship: Experience driving technical work across team boundaries and developing the engineers around you
More about this role

Offerwall by Unity is a leading mobile advertising and monetization platform that helps game developers maximize revenue and engage users through rewarded experiences. For over a decade, we've connected millions of players with offers that provide tangible in-app value, and we're now building the next generation of that product.

At the center of it is Offer Delivery, the backend service that decides which offer a player sees, when, and on what terms. It operates on two fronts: bidding in real time as a DSP into multiformat fullscreen auctions, and retrieves input features, calls our ML ranking models, and applies targeting, pacing, and supply-side rules to choose what offers gets shown.

We're seeking a Staff Backend Engineer to be the technical leader for Offer Delivery. You will set the technical vision, define the architecture, influence the roadmap, and drive delivery, owning how targeting, pacing, and supply-side rules are enforced on the serving path.

This is a meaningful role at the intersection of recommender systems, rewarded advertising, fraud prevention, and large-scale data processing. You'll work with frontier AI tools and workflows, including Claude, Codex, and...

Read the full posting on Unity's site ↗

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