Software Engineer, Billing- Weights & Biases

Weights & Biases, part of CoreWeave, is focused on empowering developers with innovative tools for AI development. The Software Engineer on the Billing team will design and build systems to manage customer billing for AI workloads, ensuring user trust and business value in a rapidly evolving field.

Responsibilities

• 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
• 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

Skills

• 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
• 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
• Bonus: you've built something end-to-end that people actually use — even if it's just for fun or for yourself

Benefits

• 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

Company Overview