Software Engineer, Serving
Liftoff · United States (Remote)
About this role
### Liftoff — Software Engineer (Serving) Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions—including **Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange**—support **6,600+ mobile businesses** across **74 countries** in sectors such as gaming, social, finance, ecommerce, and entertainment. Founded in **2012** and headquartered in **Redwood City, CA**. At Liftoff, we’re solving one of the core problems faced by every mobile app: **growth**. We build **Machine Learning** and **Big Data-driven** technology to predict which apps a user will like and connect them in a compelling way—at massive scale (processing **12M+ requests/sec** and interacting with **5B+ unique users/day**). The **Serving team** builds and maintains the mission-critical infrastructure responsible for serving ads across Liftoff’s product line. --- ### What you’ll do - Take **end-to-end ownership** of changes to Liftoff’s high-performance serving infrastructure, including **fleets for real-time request handling**, **GPU-powered inference**, and **large-scale, low-latency distributed data stores**. - Develop and improve tools that help ML engineers run experiments, **benchmark inference latency/throughput**, and **validate changes** before production deployment. - Ship code **multiple times a day**, and see quantified impact on **millions of users** and business revenue within seconds. - Contribute to an **engineering excellence** culture with state-of-the-art tools, **risk-driven testing**, explainable systems, and code review. - Become an expert in **Go, Redis**, and other cutting-edge open-source technologies that maximize development velocity. - Join a nimble, consistently excellent, experienced engineering team (former Google/LI/Ooyala/etc.). --- ### Desired qualities and experiences - Very strong coding ability. - Solid core CS fundamentals (data structures, algorithms, architecting...).
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