Senior Software Engineer, CoreUX and Expansion - Weights & Biases

About The Role

As a Senior Software Engineer, you will work in a small but high-impact team of 2–3 engineers. You will drive the development of core UI components, patterns, and behaviors across all product areas, helping to reduce fragmentation and external dependency reliance. In this role, you’ll collaborate closely with other engineers, PMs, and cross-functional stakeholders to align on component APIs, UX consistency, and accessibility best practices (WCAG). You will set and uphold high standards for usability, code quality, and technical excellence, ensuring our "blueprints" enable the wider team to build scalable and user-friendly experiences.

What You’ll Do

• Drive the development of core UI components, patterns, and behaviors across all product areas.
• Reduce fragmentation and external dependency reliance in the product surface area.
• Collaborate closely with engineers, PMs, and cross-functional stakeholders to align on component APIs, UX consistency, and accessibility best practices (WCAG).
• Set and uphold high standards for usability, code quality, and technical excellence.
• Ensure shared building blocks and blueprints enable the wider team to build scalable and user-friendly experiences.

Who You Are

• Experience: 5+ years of professional software engineering experience, with at least 3 years deeply focused on modern JavaScript frameworks (specifically React.js).
• Technical Excellence: Expert in TypeScript and component architecture, with a proven track record of delivering scalable, production-grade features.
• Technical Communication: Able to clarify vague requirements, articulate technical tradeoffs to non-technical partners, and align teams on complex decisions.
• User-Centricity: Care deeply about usability, accessibility, and reliability; have successfully shipped UI/UX improvements that directly enhanced customer experience.
• Partnership: Excel at cross-functional collaboration, working lock-step with PMs and designers to iterate quickly and deliver intuitive high-quality interfaces.

Preferred Qualifications

• Experience with TypeScript and strong coding practices.
• Background in design systems or component libraries, with an eye for scalable, reusable UI patterns.
• Familiarity with navigation and information architecture design for complex applications.
• Exposure to accessibility and web best practices (WCAG).
• Knowledge of telemetry, analytics, and experimentation frameworks to measure and improve user experience.

What We Value

• You love exploring new ideas and approaches.
• You take initiative and drive projects with accountability and care.
• You thrive in an environment where people are trusted to empower each other and bring their best work forward.
• You care deeply about delivering best-in-class client experiences, ensuring every interaction with our product feels intuitive and reliable.
• You enjoy collaborating across teams to build something greater than any of us could alone.

Pay & Benefits

• Base salary range: $139,000 – $204,000 (determined based on job-related knowledge, skills, experience, and market location).
• Total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program.
• Medical, dental, and vision insurance – 100% paid for by CoreWeave.
• Company-paid Life Insurance and voluntary supplemental life insurance.
• Short and long-term disability insurance.
• Flexible Spending Account and 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 office and data center locations.
• A casual work environment and a work culture focused on innovative disruption.