# Principal Software Engineer - Models at CoreWeave

CoreWeave is hiring a Principal Software Engineer - Models in San Francisco, United States. It pays $227k-$303k a year and Level rates it Little AI ●○○○; you can [apply on CoreWeave](https://jobsbylevel.com/go/79c21ce4-a756-4207-bb1a-6a9bfe4f86d5?utm_medium=ai-agent).

AI Level 1, AI centrality 7 out of 100. San Francisco, CA, Bellevue, WA, Sunnyvale, CA, New York, Livingston, NJ.

## Details

- Company: [CoreWeave](https://jobsbylevel.com/companies/coreweave)
- AI level: AI Level 1 (score 7 out of 100)
- Location: San Francisco, CA, Bellevue, WA, Sunnyvale, CA, New York, Livingston, NJ
- Salary: $227k-$303k
- Posted: September 18, 2026
- Apply: https://jobsbylevel.com/go/79c21ce4-a756-4207-bb1a-6a9bfe4f86d5?utm_medium=ai-agent
- Free CV review for this job: https://jobsbylevel.com/cv-review?job=principal-software-engineer-models-at-coreweave-2a771d

## Prepare for this job

The job page lists 4 likely interview questions for this offer, with a CV checklist: https://jobsbylevel.com/jobs/principal-software-engineer-models-at-coreweave-2a771d

## 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. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at www.coreweave.com . Weights & Biases at CoreWeave CoreWeave acquired Weights & Biases to create the most powerful end-to-end platform to develop, deploy, and iterate AI faster. CoreWeave operates a growing footprint of data centers covering every region of the US and across Europe, and was ranked as one of the TIME100 most influential companies of 2024. By bringing together CoreWeave’s industry-leading cloud infrastructure with the best-in-class tools AI practitioners know and love from Weights & Biases, we’re setting a new standard for how AI is built, trained, and scaled. The integration of our teams and technologies is accelerating our shared mission: to empower developers with the tools and infrastructure they need to push the boundaries of what AI can do. From experiment tracking and model optimization to high-performance training clusters, agent building, and inference at scale, we’re combining forces to serve the full AI lifecycle — all in one seamless platform. Weights & Biases has long been trusted by over 1,500 organizations — including AstraZeneca, Canva, Cohere, OpenAI, Meta, Snowflake, Square, Toyota, and Wayve — to build better models, AI agents and applications. Now, as part of CoreWeave, that impact is amplified across a broader ecosystem of AI innovators, researchers, and enterprises. As we unite under one vision, we’re looking for bold thinkers and agile builders who are excited to shape the future of AI alongside us. If you’re passionate about solving complex problems at the intersection of software, hardware, and AI, there’s never been a more exciting time to join our team. What You’ll Do You will own the frontend architecture of the W&B app, the product ML researchers and engineers work in every day, and be accountable for app performance, stability and reliability. A single page in W&B assembles data from many parts of the product, which power different product features owned by different teams. Individually those requests are all reasonable; in aggregate they contribute to increased load times and a worse experience for users. Performance here is a question of composition: what queries each page needs before it can render, what queries can add to that set, and how those boundaries hold as the product grows. You'll define those boundaries and make the calls they depend on. This role is frontend-led but architecture-deep and organizationally wide. You'll spend time shaping other teams' designs and building consensus across boundaries, and you'll own execution of your own plans when that's what it takes to land them. In this role you'll be responsible for the architecture, performance, and stability of the W&B Models frontend, defining the frontier of innovation for the team, and managing cross team requirements within the Models system. Some examples of what you’ll do: Setting performance targets and driving the work that meets them, with results proven in production data Deciding the app's delivery and rendering architecture, including how code is delivered efficiently Partnering with backend and platform teams on API design, including moving work out of the client Proposing and driving the larger overhauls that incremental work cannot reach Investing in our people is one of our top priorities, and we value candidates who can bring their diversified experiences to our teams. Here are some qualities we’ve found compatible with our team. We'd love to talk about whether this aligns with your experience

The description is cut here. Read the full offer: https://jobsbylevel.com/jobs/principal-software-engineer-models-at-coreweave-2a771d

Source: https://jobsbylevel.com/jobs/principal-software-engineer-models-at-coreweave-2a771d

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