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 You will be a primary driver of platform-wide performance and scaling initiatives.

• Own the Scaling Strategy: Architect and execute a roadmap that balances high-velocity data ingestion with high-performance visualization. You will ensure the platform remains stable as we scale to support thousands of concurrent ML runs and billions of data points.
• Drive Cross-Functional Performance: Act as a performance "ambassador" across the organization. You will work across team and department boundaries to identify bottlenecks in the data path, from the SDK level through the API to the final chart render.
• Evolve Core Infrastructure: Lead the team responsible for W&B’s shared backend logic and internal tooling. You will own the schema definitions and code-generation workflows that ensure consistency and type-safety across all microservices.
• Optimize the SDK Experience: Oversee the development of our client-side libraries to ensure they capture rich GPU telemetry and metrics with zero-to-minimal impact on the performance of the user’s training experiment.

About The Role This is a high-visibility leadership role responsible for the technical foundation of Weights & Biases. You will manage the critical path between model training and data visualization, ensuring the platform scales to meet the demands of the world's largest AI labs.

Your mission is to drive a performance-first culture across the organization. You will be expected to move beyond your immediate reports, exercising cross-organizational influence to ensure that every architectural decision—from SDK telemetry capture to backend API design—prioritizes system efficiency and "time-to-glass" for the user.

Who You Are

• Experienced Leader: 10+ years of software engineering experience, with 3+ years in a management role leading teams focused on high scale systems.
• Technical Depth: You have a deep understanding of backend systems, API design (REST/GraphQL/gRPC), and high-throughput data ingestion.
• Performance-Obsessed: You understand the nuances of system bottlenecks (CPU, memory, I/O) and have experience driving performance improvements that impact end-user experience.
• Architectural Visionary: You can navigate complex technical trade-offs, ensuring that today's solutions don't become tomorrow's technical debt.
• Strategic Communicator: You excel at translating complex technical roadmaps into business value for stakeholders and can influence engineering standards across the entire organization.

Preferred

• High-Scale Systems Experience: Proven track record of managing platforms that handle multi-petabyte datasets or ingestion rates exceeding millions of events per second.
• Deep Observability Expertise: Hands-on experience with profiling and tracing tools (e.g., pprof, eBPF, OpenTelemetry) to diagnose performance bottlenecks across distributed service boundaries.
• Architectural Influence: Past success in a "Player-Coach" or "Architect-Manager" capacity, where you successfully convinced multiple teams to adopt new performance patterns or infrastructure standards.

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. We believe in investing in our people and value candidates who bring diverse experiences to our teams — even if you aren’t a 100% match on paper. If you love building foundational systems that other engineers rely on, are curious about distributed execution and performance at scale, and enjoy defining clean and durable abstractions, we’d love to talk.

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 salary range for this role is $188,000 to $275,000. 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:

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: 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.