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About Block
Block, Inc. (formerly Square) is a financial technology company operating the Square merchant payments ecosystem, Cash App peer-to-peer payments, TIDAL music streaming, and Bitcoin-focused financial services. Industry: Financial Technology & Payments
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As part of Apollo's Block Applied R&D team, you will join as a graduate student intern (MS or PhD) for an 8-month co-op starting in September 2026. Your role involves building the Customer World Model (CWM), which aims to create proactive intelligence systems that understand and anticipate customer needs. Day-to-day tasks include developing methods for rich customer representations, creating systems that initiate helpful actions proactively, and designing agents that reason over complex data to make informed decisions. You will work with Python, PyTorch, JAX, and other ML frameworks while tackling challenges in representation learning, reinforcement learning, causal reasoning, and product intelligence. This role requires a strong background in machine learning, experience with independent research, and the ability to translate ideas into practical systems, all within the context of developing cutting-edge AI technologies that directly impact customer outcomes at scale.
Mechanical Engineering
Material Science
Industrial Engineering
Quality Management
Supplier Management
Project Management
Design of Experiments
Statistical Process Control
Geometric Dimensioning&Tolerancing
Injection Molding
Tooling
Jigs&Fixtures
Automotive Manufacturing
High Volume Quality Engineering
Root Cause Analysis
Plastic Parts
Mechanical Properties of Materials
Python
C
C++
CUDA
TensorFlow
PyTorch
Kubernetes
Docker
AWS
Azure
Google Cloud Platform
CI/CD
Git
Linux
PostgreSQL
MongoDB
Hadoop
Spark
Distributed Systems
Cloud Computing