Staff Applied Machine Learning Engineer - Intelligent Data, Signals & Systems

What this role involves

Build production ML systems that transform customer behavior and product context into trusted signals for recommendations, ranking, and decisioning. Design signal contracts and own end-to-end ranking, retrieval, and recommendation systems. Requires 12+ years experience.

Skills this posting asks for

• ranking
• retrieval
• recommendations
• search
• personalization
• growth ml
• lifecycle ml
• customer intelligence
• propensity modeling
• churn modeling
• ltv modeling
• next-best-action
• risk signals
• semantic retrieval
• embeddings
• two-tower models
• graph features
• llm-powered retrieval
• entity resolution
• real-time personalization
• experimentation
• interleaving
• production ml
• feature pipelines

Requirements

• 12 years of experience
• Level: staff

From the employer’s posting

Block builds simple, powerful tools that make progress towards an economy that’s truly open to all. Each of our brands unlocks different aspects of the economy for more people. Square makes commerce and financial services accessible to sellers. Cash App is the easy way to spend, send, and…