Описание

Liftoff is hiring a Senior Staff Software Engineer, Serving to build and operate high-throughput, low-latency ad serving and ML inference infrastructure. The role includes GPU-powered inference services, feature store fleets, performance benchmarking, and ML experimentation tooling.

Responsibilities

Design, build, and operate the high-throughput, low-latency services that receive bid requests, execute Liftoff’s bidding logic, and respond to ad exchanges in real time
Improve the performance, scalability, and reliability of systems that process millions of requests per second under strict latency constraints
Develop and optimize GPU-powered inference services that execute neural network models using TensorRT
Profile end-to-end inference pipelines to identify and eliminate bottlenecks in GPU utilization, batching, memory access, serialization, networking, and request handling
Partner with machine learning engineers to productionize new model architectures and features, translating modeling requirements into efficient and reliable serving implementations
Design and operate large feature store fleets that provide low-latency access to real-time and precomputed features
Develop benchmarking and performance-analysis tools that help engineers compare models, understand latency and throughput trade-offs, and identify regressions before deployment
Improve experimentation tooling that allows machine learning teams to orchestrate offline training runs, evaluate candidate models, and maintain model leaderboards
Own changes through their full lifecycle—from system design and implementation to testing, deployment, observability, capacity planning, incident response, and continued optimization

Requirements

Strong core Computer Science fundamentals (data structures, algorithms, system architecture)
10+ years of industry experience
M.S. or higher in Computer Science (or equivalent work experience)

Nice to have

Experience with Go is a plus

We offer

This role is eligible for full-time remote work in one of our entities: CA, CO, ID, IL, FL, GA, MA, MI, MN, MO, NJ, NV, NY, OR, PA, TX, UT, and WA
Full compensation package that includes equity and health/vision/dental benefits associated with your country of residence
Base compensation will vary based on the candidate's location and experience
Base salary ranges for this role: SF Bay Area, NYC, Los Angeles/Orange County: $255,000 - $310,000; Seattle/Olympia, Austin, San Diego, Santa Barbara, Boston: $234,000 - $285,000; All other cities and towns in our approved states: $219,000 - $266,000
Opportunities for in-person team gatherings at least once per quarter (project meetings, regional meetups, company-wide events)