Software Engineer, Billing- 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 You’ll join the Billing Engineering team , responsible for building and evolving the systems that power how our customers are billed for their usage across AI workloads. This isn’t a space with established playbooks — we’re designing billing systems that fit a new generation of AI products, where no one has fully figured out what “right” looks like yet. About the role This role sits at the intersection of engineering, product design, and the evolving economics of AI. As a Full Stack Engineer on the Billing team, you’ll help create the systems that determine how our customers understand, control, and pay for their usage — a space where thoughtful engineering directly shapes user trust and business value. You’ll design and build end-to-end features across Go and React, collaborating closely with teammates to refine what success looks like as we learn. In a fast-moving field without clear precedents, you’ll have meaningful influence and abundant opportunities to grow. Who You Are 1–3 years of experience building web applications, or equivalent personal projects that demonstrate full-stack ability. Familiar with Go , React , or similar technologies, and eager to deepen your expertise in both backend and frontend development. Comfortable building and connecting systems through APIs, and curious about how those connections shape the product experience. Experience thinking about performance and stability in real-world systems — for example, optimizing queries, caching data, or handling edge cases gracefully. Bonus: you’ve built something end-to-end that people actually use — even if it’s just for fun or for yourself. Preferred Interested in how user incentives and perceptions of value are driven by pricing and product design . Passionate about understanding how thoughtful software design can drive flexibility, empower better user experiences, and enable the business to adapt to evolving needs. Energized by exploring open problems and helping shape what success looks like alongside your team. Someone who enjoys collaborating across disciplines and helping others learn as you do. Wondering if you’re a good fit? You love taking ownership of projects and seeing them through to something real people use. You’re curious about how new business models — like usage-based pricing — can shape the AI ecosystem. You enjoy small, ... (truncated, view full listing at source)