Job Details

Senior Software Engineer, Visualizations – Weights & Biases

CoreWeave, the AI Hyperscaler™, acquired Weights & Biases to create the most powerful end‑to‑end platform to develop, deploy, and iterate AI faster. Since 2017, CoreWeave has operated a growing footprint of data centers across the US and 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.

What You'll Do

Reporting to the Engineering Manager for Visualizations, you will help shape how machine learning practitioners analyze and understand their models. The team builds core visualizations such as line plots, scatter plots, and media viewers that thousands of researchers and engineers rely on every day. We are focused on helping users see how inputs affect model performance, compare outputs across models, and scale performance so they can analyze more models at once.

You will primarily focus on creating intuitive, high‑performance frontend experiences, while also working across the stack to deliver end‑to‑end features. This is an opportunity to make a visible impact on one of the most widely used MLOps platforms in the world.

Responsibilities

• Contribute to visualization features by implementing frontend components that power interactive charts, media viewers, and other tools used to view data in W&B.
• Write clean, testable and reusable code, participate in code reviews and learn best practices from experienced teammates.
• Help diagnose and fix issues in rendering large quantities of logged data.
• Participate in code reviews, team discussions, and sprint planning to grow your skills and contribute to team goals.
• Focus on our end users and listen to customer feedback in order to deliver value.

Who You Are

• 3‑5 years of experience building and maintaining user‑facing web applications; exposure to data visualization or time‑series data is a plus.
• Familiarity with modern web development tools and frameworks, such as React, TypeScript, GraphQL.
• Solid understanding of programming fundamentals and experience with at least one modern language (Go, Python, C++, Java, Javascript).
• Enthusiasm for learning how to build reliable, high‑quality software through hands‑on experience, mentorship, and feedback.
• Curiosity and persistence in understanding ambiguous problems and exploring potential solutions with a tendency toward action.
• Ability to work with product and customer‑facing teams to translate user feedback into technical solutions.
• Interest in the AI/ML space and motivation to grow in a fast‑paced, mission‑driven environment.

Preferred

• Experience building highly performant front‑end applications and handling large quantities of data efficiently.

Wondering if you're a good fit?

We believe in investing in our people, and value candidates who can bring their own diversified experiences to our teams – even if you aren't a 100% skill or experience match. If some of this describes you, we'd love to talk.

• You love building highly responsive and performant user interfaces.
• You're curious about how AI researchers measure their models, and how they investigate performance in depth.

Why Us?

We work hard, have fun, and move fast! We're in an exciting stage of hyper‑growth that you will not want to miss out on. We're not afraid of a little chaos, and we're constantly learning. Our team cares deeply about how we build our product and how we work together, which is represented through our core values:

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

Benefits

The base salary range for this role is $139,000 to $204,000. The starting salary will be determined based on job‑related knowledge, skills, experience, and market location. We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program.

In addition to a competitive salary, we offer a variety of benefits to support your needs, including:

• Medical, dental, and vision insurance – 100% paid for by CoreWeave
• Company‑paid Life Insurance
• Voluntary supplemental life insurance
• Short‑term 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

Our Workplace

While 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 for specialized skill sets. New hires will be invited to attend onboarding at one of our hubs within their first month. Teams also gather quarterly to support collaboration.

Equal Opportunity Employer

CoreWeave is an equal‑opportunity employer, committed to fostering an inclusive and supportive workplace. 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. As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship. If reasonable accommodation is needed, please contact: careers@coreweave.com.

Export Control Compliance

This position requires access to export‑controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be:

• A U.S. person, defined as a U.S. citizen or national, U.S. lawful permanent resident (green card holder), refugee, or asylee.
• Eligible to access the export‑controlled information without a required export authorization.
• Eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency.
• CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.

Seniority Level

Mid‑Senior level

Employment Type

Full‑time

Job Function

Engineering and Information Technology

Industries

Software Development