Senior Software Engineer, Weave - Weights & Biases
About The Position
Weave is CoreWeave’s observability, evaluation, and monitoring platform for AI agents and generative AI applications. Customers use it to build an improvement loop for AI agents, including production tracing, offline evaluations, online monitoring, and alerting. As a Software Engineer on a small but growing foundational team, you will help build and scale Weave by designing and shipping core functionality, gathering feedback directly from users and customers, and improving the product experience. You will work with AI builders to develop tools that help teams understand, evaluate, and iterate on their AI agents. The role involves building robust APIs and integrations, improving backend performance, creating user-facing product features, and partnering with users to refine solutions. The position requires access to export-controlled information. Applicants must meet applicable U.S. government export-control requirements. CoreWeave is an equal opportunity employer and provides reasonable accommodations for qualified applicants with disabilities.
Requirements
- Bachelor’s degree in Computer Science or a related field.
- 8+ years of experience in Software Engineering.
- Deep knowledge of Python and/or TypeScript.
- Experience, personal or professional, building AI agents.
- Ability to operate effectively amid ambiguity and adapt rapidly to a changing environment.
- Meet applicable U.S. government export-control requirements to access export-controlled information.
Nice To Haves
- Previous startup experience.
- Experience managing large-scale online production services or OLAP databases.
- Experience with distributed systems, backend services, ML infrastructure, developer tools, or the AI lifecycle.
Responsibilities
- Implement robust and ergonomic APIs.
- Design and build integrations with popular agent harnesses and SDKs, such as Claude Code, Codex, pi.dev, and OpenAI Agents SDK.
- Scale and improve backend performance to support low-latency, high-volume production use cases.
- Build features including online LLM judges, playgrounds, evaluations, labeling, and tracing UX.
- 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 for US-based full-time employees.
- 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 the 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 at office and data center locations.
- Discretionary bonus.
- Equity awards.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
