Senior Software Engineer, ML Verticals - 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 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

Reporting to the Engineering Manager for ML Verticals, you will help design and build new mechanisms in W&B that allow machine learning practitioners to analyze application-specific data across domains such as robotics, finance, and health/bio.

The ML Verticals team focuses on rapidly exploring and shipping new analysis workflows, often in problem spaces where the right abstractions, data models, and UX are still emerging. You’ll work closely with users to understand how they want to interrogate their data, then iterate on product experiences by shaping frontend interactions and the underlying data representations that make them possible.

This role is frontend-led, but explicitly end-to-end: you’ll move quickly across UX, APIs, and data models to turn early ideas into production features used by thousands of customers.

About The Role

* Rapidly prototype, iterate, and ship new analysis workflows for ML verticals, balancing experimentation with long-term product quality

* Design frontend experiences in parallel with backend schemas and APIs, evolving data models as user needs become clearer

* Work across the stack to implement end-to-end features, including adding or modifying logging formats, APIs, and data access patterns

* Make pragmatic decisions about how user-logged data should be stored, queried, and rendered to support new analytical questions

* Collaborate closely with product, design, and customer-facing teams to validate ideas early and incorporate real user feedback

* Improve reliability, performance, and scalability when working with large, complex, or high-volume datasets

* Contribute clean, testable, and reusable code; participate in code reviews and help establish patterns that reduce one-off solutions

Who You Are

* 3–5+ years of experience building user-facing software, with a strong focus on frontend development

* Comfortable working across the stack, including backend services, APIs, and data models when product needs require it

* Experience working in ambiguous problem spaces where requirements, schemas, and abstractions evolve over time

* Strong product instincts and ability to reason from user goals to technical design decisions

* Familiarity with modern web technologies such as React, TypeScript, and GraphQL

* Solid understanding of programming fundamentals and experience with at least one backend or systems language (e.g. Go, Python, Java, C++, JavaScript)

* Bias toward action, iteration, and learning through building, with the judgment to avoid over-engineering too early

Preferred

* Experience evolving or versioning data schemas in production systems

* Experience designing APIs to support exploratory or analytical workflows

* Familiarity with large-scale data systems, time-series data, media, or domain-specific file formats

* Exposure to ML, robotics, simulation, or scientific tooling

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. Here are a few qualities we’ve found compatible with our team. If some of this describes you, we’d love to talk.

* You enjoy working in ambiguous problem spaces, quickly iterating on ideas, and refining both user experiences and underlying data models as you learn what users actually need.

* You’re comfortable thinking end-to-end about products — from how data is logged and structured, to the APIs that expose it, to the frontend experiences that help users make sense of it.

Why Us?

About

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

We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and provides the opportunity to develop innovative solutions to complex problems. As we get set for takeoff, the growth opportunities within the organization are constantly expanding. You will be surrounded by some of the best talent in the industry, who will want to learn from you, too. Come join us!

The base pay for this position ranges from $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 (all based on eligibility)

What We Offer

The range we’ve posted represents the typical compensation range for this role. To determine actual compensation, we review the market rate for each candidate which can include a variety of factors. These include qualifications, experience, interview performance, and location.

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 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

California Consumer Privacy Act - California applicants only

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: [email protected].

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) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C.

* 1157, or (iv) asylee under 8 U.S.C.

* 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) 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.