Senior Software Engineer, Weave - Weights & Biases
About The Position
Weave is our new lightweight toolkit for tracking and evaluating GenAI applications. Our users rely on Weave to understand and improve their AI-powered products — from Agents to Retrieval Augmented Generation (RAG) systems and beyond. About the Role: We’re looking for Software Engineers to help build and scale Weave. In this foundational role on a small but growing team, you’ll design and ship core functionality, gather feedback directly from early adopters, and continuously improve the product experience. You’ll work closely with cutting-edge AI builders, developing the next generation of tools that help teams understand, evaluate, and iterate on their GenAI applications.
Requirements
- Bachelor’s degree in Computer Science or related field.
- 8+ years of experience in Software Engineering.
- Deep knowledge of Python and/or TypeScript.
- Experience (personal or professional) in building GenAI-powered applications.
- Ability to operate effectively amid ambiguity and adapt rapidly to a changing environment.
- Previous startup experience is a plus.
Nice To Haves
- Experience managing large-scale online production services or OLAP databases.
- You thrive at the intersection of software, hardware, and ML infrastructure — from tuning distributed systems to scaling backend services.
- You’re passionate about building tools that developers love to use — intuitive APIs and UX that bring clarity and speed to AI workflows.
- You’re curious about the full AI lifecycle — from experiment tracking and model deployment to observability and evaluation — and want to shape an end-to-end platform that redefines how AI is built and scaled.
Responsibilities
- Implement robust and ergonomic open-source client APIs.
- Design and build integrations with popular LLM tools such as LlamaIndex, LangChain, and Instructor.
- Scale and improve backend performance to support low-latency, high-volume production use cases.
- Build polished and intuitive features such as multi-modal evaluations, LLM playgrounds, and dataset editing/drill-down capabilities.
- Partner directly with users to understand workflows, gather feedback, and rapidly iterate on solutions.
Benefits
- Medical, dental, and vision insurance - 100% paid for by CoreWeave
- Company-paid Life Insurance
- Voluntary supplemental life insurance
- Short and long-term disability insurance
- Flexible Spending Account
- Health Savings Account
- Tuition Reimbursement
- Ability to Participate in Employee Stock Purchase Program (ESPP)
- Mental Wellness Benefits through Spring Health
- Family-Forming support provided by Carrot
- Paid Parental Leave
- Flexible, full-service childcare support with Kinside
- 401(k) with a generous employer match
- Flexible PTO
- Catered lunch each day in our office and data center locations
- A casual work environment
- A work culture focused on innovative disruption
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
