Loading...
Senior Machine Learning Engineer (Modeling), Support at Block
BlockBay Area, CA, United States of America·5d ago
SeniorFull-timePythonAWSMachine LearningTensorFlowPyTorchAIMLNLP
Salary Range
$132,600 - $179,400 /year
This salary is estimated based on similar roles. The actual salary may vary.
About the Role
We are looking for an ML Modeling Engineer to join Block's Support ML Modeling team. This role focuses on advancing intelligent, automated support through machine learning and generative AI across Block's ecosystem, including Cash App, Square, and other business units.
Key Responsibilities
- →Lead R&D efforts to explore and prototype next-generation chatbot architectures using LLMs, retrieval-augmented generation (RAG), fine-tuning, and real-time inference
- →Design and deploy ML models powering conversational agents, including the support chatbot used across Cash App, Square, and other Block products
- →Build generative AI systems that scale intelligently across multiple business units
- →Advance voice support automation, enabling natural, responsive, and accurate voice-based interactions
- →Develop systems to infer customer intent, enabling effective routing, triaging, and resolution of cases with minimal human involvement
- →Create ML-powered tooling and real-time recommendation systems to assist support agents
- →Engineer robust, reusable modeling pipelines capable of high throughput, rapid iteration, and easy deployment
- →Collaborate cross-functionally with product, engineering, design, and operations teams to ship impactful ML features at scale
Requirements
- ✓6+ years of experience in machine learning, applied AI, or product ML roles
- ✓Demonstrated experience with language models, dialog systems, or generative AI in production
- ✓Strong knowledge of NLP, deep learning, and ML infrastructure best practices
- ✓Experience with speech processing or voice interfaces is a strong plus
- ✓Proven ability to ship end-to-end ML features—framing problems, prototyping, training, evaluation, and deployment
- ✓Experience designing scalable model pipelines and maintaining production ML services
- ✓Excellent communication skills and a collaborative mindset
- ✓Enthusiasm for R&D and pushing the boundaries of what AI can do for support
