Senior Software Engineer, W&B Agent - W&B

Job Description

CoreWeave is The Essential Cloud for AI. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. The company has acquired Weights & Biases to create an end-to-end platform for developing, deploying, and iterating AI.

Weights & Biases at CoreWeave

The integration of CoreWeave's cloud infrastructure and Weights & Biases' tools aims to empower developers with the resources they need to advance AI capabilities. The goal is to combine forces to serve the full AI lifecycle in one seamless platform.

Senior Software Engineer, W&B Agent

As a Senior Full Stack Engineer on the ARIA Agent team, you will own features and systems across the entire stack, from backend infrastructure and API design to the React frontend. You will build and maintain distributed worker systems, design streaming architecture, and contribute to frontend components.

Responsibilities

• Build and maintain distributed worker systems that run agent conversations at scale
• Design streaming architecture that delivers real-time token output to the browser
• Contribute to frontend components that make ARIA feel fast and intuitive
• Collaborate with ML science, product, iOS, and SRE teams

Requirements

• Bachelor's degree or foreign equivalent in Computer Science, Computer Engineering, Data Science, Information Systems, or a closely related technical field
• 4+ years of full-stack engineering experience with depth in both backend services and React/TypeScript frontend development
• Strong Python backend skills with async patterns, FastAPI, distributed state machines, and Kubernetes pod lifecycle
• Proficient in TypeScript and React with experience building and maintaining production UI components
• Experience building and operating services at scale with observability tooling and security-conscious engineering mindset

Preferred Qualifications

• Experience building streaming UIs with server-sent events or WebSockets
• Background in ML infrastructure, developer tooling, or observability platforms
• Hands-on experience building and shipping production-grade AI agents

What We Offer

• Base salary range: $182,000 to $242,000
• Comprehensive benefits program including medical, dental, and vision insurance, company-paid life insurance, and flexible spending account
• Opportunities for professional growth and development in a fast-paced, dynamic environment