About the role
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 be joining the Mobile team within the ML Workflows organization. We recently launched the W&B iOS app at NVIDIA GTC 2026, bringing run monitoring, project browsing, metric visualization, and push notifications to ML practitioners on the go. The app is live on the App Store and already seeing adoption across research labs, universities, and AI companies. We're now building on that momentum to expand the mobile experience and make W&B the app ML engineers check first when they want to know how their training runs are going.
About the role
As a Senior Engineer on the Mobile team, you'll be one of the first engineers shaping the future of W&B's mobile experience. Your day-to-day will involve building new iOS features end-to-end, from the data layer through shipping to the App Store. You'll work on charting and data visualization for ML metrics, real-time notifications, offline support, and deeper integrations with the W&B platform via GraphQL APIs. The codebase is modern Swift 6 and SwiftUI with a clean modular architecture, and you'll have significant influence over technical direction as the team grows. You'll work closely with a dedicated designer, product manager, and one other full-time engineer, and collaborate with backend engineers across multiple W&B product areas. Mobile is becoming the surface for a broad set of W&B entrypoints beyond workspaces and visualization, and you'll be building a
Aplyr's read
Weights & Biases is a hub for AI enthusiasts, offering cutting-edge tools for seamless machine learning development and collaboration.
What's promising
- •Strong focus on enhancing productivity for machine learning practitioners.
- •Offers comprehensive tools for experiment tracking and model optimization.
- •Highly valued by data scientists for improving workflow efficiency.
What to watch
- •Limited public information about company culture and work-life balance.
- •Potentially high pressure due to rapid AI industry changes.
- •Niche focus may limit appeal to broader tech professionals.
Why Weights & Biases
- •Specializes in tools specifically designed for machine learning workflows.
- •Emphasizes collaboration among data scientists and engineers.
- •Provides a platform that integrates seamlessly with popular ML frameworks.
Aplyr’s read is generated by AI from public sources. Was it useful?
About Weights & Biases
Weights & Biases is a leading platform for machine learning practitioners, providing tools for experiment tracking, model optimization, and collaboration. Their solutions empower data scientists and engineers to streamline their workflows and improve productivity in developing AI models.
