About Noumena At Noumena, we are on a mission to revolutionize AI tools by creating the world's first full-stack intelligence system. Our comprehensive AI platform focuses on integrating and optimizing every layer, from infrastructure to user experience. Unlike others who primarily scale model size, Noumena emphasizes strategic specialization and system-level optimization.
This Summer 2025, we are excited to launch our product suite, including Noumena Coder: an intelligent coding assistant designed for deep refactoring, multi-file PR planning, and long-range reasoning. Powered by our tailored routing across specialized models, it boasts context lengths of over 10M and adaptive compute scaling.
About the Role We are seeking a passionate full-stack engineer with a strong frontend focus to build impactful products and interfaces for coding, research, and intelligent collaboration. You will collaborate with our founding team to architect and deliver intuitive, scalable tools that create fast and deeply useful AI experiences, making technology feel almost magical.
Key Responsibilities - Design and develop user-friendly web-based interfaces for our AI products, such as Noumena Coder and Research Agent.
- Collaborate with backend and infrastructure engineers to enhance user experience around real-time inference and extensive context lengths.
- Implement token streaming UX to ensure responsiveness during complex operations.
- Translate product requirements into polished, responsive, and production-ready applications.
- Create interfaces that effectively manage multi-threaded operations, visualization rendering, and structured outputs.
- Contribute to full-stack features and system design as necessary.
You Might Be a Great Fit If You: - Enjoy building fast and intuitive user experiences that feel magical.
- Care about how products feel, in addition to their functionality.
- Have experience across the tech stack, even if your preference leans towards frontend development.
- Look forward to frequent shipping and direct user interaction.
- Are excited by the technical challenges of building interfaces for next-generation AI tools.
Strong Candidates May Also Have Experience With: - TypeScript, React, and component-based design systems.
- Model routing, inference UIs, and token streaming UX.
- Developing IDE-style products or tools for technical professionals.
- Performance profiling and debugging across frontend/backend boundaries.
- Real-time collaborative interfaces and state management.
- Visualization libraries and dynamic content rendering.
What Sets Us Apart We are dedicated to building the AI tools that have long been promised but never fully realized: tools that maintain context across complex projects, solve sophisticated problems reliably, and improve with use rather than degrade. While existing solutions may initially impress, they often falter under real-world demands due to fragmented stacks.
Joining Noumena means being part of a team that creates transformative systems that deliver the sustained intelligence and adaptability needed in the modern workspace. Help us craft the magical experience users have been waiting for.