Software Engineer, ML Infra

We’re hiring a Machine Learning Infrastructure Engineer to help build the backbone that trains, serves, and monitors the models behind our Ads and Recommendations products. You’ll join a small, high-ownership team that ships platform improvements end-to-end—partnering with product and data teams, reducing latency and cost, and shortening the path from an idea to a safely launched model. You’ll work across the ML lifecycle: making training faster and more reliable, improving model serving performance, and strengthening our feature/embedding platform so models stay fresh and consistent between offline and online use. We’re looking for someone who can take real ownership, finish what’s started, and raise the bar on stability and developer experience.

Responsibilities

Design and develop machine learning infrastructure; Own and enhance core components of the ML infrastructure, including systems for offline and online model training, model pipeline health monitoring, model serving, feature authoring, and feature serving; Proactively address ML infrastructure issues that may impact production; Collaborate with ML engineers to build robust model pipelines utilizing the ML infrastructure

Requirements

Bachelor's degree in a related field with 5+ years of relevant experience, or MS/PhD in a related field with 3+ years of relevant experience; Experience delivering production systems that support ML use cases (training or serving); Proven track record in building and maintaining large-scale distributed backend systems; Proficient in Python, with a strong understanding of object-oriented languages such as C++ or Java; Strong problem solving skills with good teamwork and communication skills

Nice to have

Experience leading cross-team projects from design through stable rollout; Experience iterating on ML models and shipping them to production

Benefits

Health, dental, and vision care for you and your family; Top-tier 401(K) plan with company matching; Paid time off and paid holidays; Paid parental leave; FSA and commuter benefits programs; Team activity budget; Eligibility for discretionary bonus and options