Software Engineer, Weave

Software Engineer, Weave – Weights & Biases

Join Core Weave, the AI hyperscaler, to build and scale Weave, our lightweight toolkit for tracking and evaluating GenAI applications.

You’ll design and ship core functionality, gather feedback from early adopters, and continuously improve the product experience. You’ll work closely with cutting‑edge AI builders to develop tools that help teams understand, evaluate, and iterate on their GenAI applications.

• Implement robust and ergonomic open‑source client APIs.
• Design and build integrations with popular LLM tools such as Llama Index, Lang Chain, 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.

• Bachelor’s degree in Computer Science or related field.
• 4+ years of experience in Software Engineering.
• Deep knowledge of Python and/or Type Script.
• Experience (personal or professional) building GenAI‑powered applications.
• Ability to operate effectively amid ambiguity and adapt rapidly to a changing environment.
• Previous startup experience is a plus.

• Experience managing large‑scale online production services or OLAP databases.

• Be Curious at Your Core
• Act Like an Owner
• Empower Employees
• Deliver Best‑in‑Class Client Experiences
• Achieve More Together

The base salary range for this role is $175,000 to $275,000.

• Medical, dental, and vision insurance – 100% paid for by Core Weave
• Company‑paid Life Insurance
• Voluntary supplemental life insurance
• Short and long‑term disability insurance
• Flexible Spending Account
• Health Savings Account
• Tuition Reimbursement
• 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 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

We prioritize a hybrid work environment. Remote work may be considered for candidates located more than 30 miles from an office, based on role requirements.

Core Weave is an equal‑opportunity employer. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.

We will provide reasonable accommodations for qualified applicants with disabilities, in accordance with the Americans with Disabilities Act. If you need an accommodation, please contact .

This position requires access to export‑controlled information. Applicants must be U.S. persons or otherwise eligible to access the information without a required export authorization.