Senior Engineer, CoreUX and Expansion- Weights & Biases
About The Position
The CoreUX team is dedicated to making W&B feel like a single, polished product. We drive the evolution of shared building blocks, core user journeys, and universal app surfaces to ensure consistency and accessibility at scale. With a focus on long-term ownership and excellence, the team ensures our application remains fast to build within, easy to use, and impactful across the entire product surface area. 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.
Requirements
- 5+ years of professional software engineering experience.
- At least 3 years deeply focused on modern JavaScript frameworks (specifically React.js).
- Expert in TypeScript and component architecture.
- Proven track record of delivering scalable, production-grade features.
- Ability to clarify vague requirements.
- Ability to articulate technical tradeoffs to non-technical partners.
- Ability to align teams on complex decisions.
- Deep care for usability, accessibility, and reliability.
- Successfully shipped UI/UX improvements that directly enhanced the customer experience.
- Excel at cross-functional collaboration, working lock-step with PMs and designers to iterate quickly and deliver intuitive high-quality interfaces.
Nice To Haves
- 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.
Responsibilities
- Drive the development of core UI components, patterns, and behaviors across all product areas.
- Help to reduce fragmentation and external dependency reliance.
- Collaborate closely with other 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.
- Enable the wider team to build scalable and user-friendly experiences through 'blueprints'.
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
Stand Out From the Crowd
Upload your resume and get instant feedback on how well it matches this job.
What This Job Offers
Job Type
Full-time
Career Level
Senior
Education Level
No Education Listed
