About this opportunity
Stealth AI Startup lists this Software Engineer, Front-End Systems opportunity in workfromhome, California. Review the employer’s description below for duties, qualifications and application requirements.
Job description
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This range is provided by Stealth AI Startup. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
Base pay range
$150,000.00/yr - $250,000.00/yr
Additional compensation types
RSUs
Craft the interface of intelligence: fast, structured, and radically adaptive.
About Noumena
Noumena is an AI research lab and product company building toward AGI through narrow, adaptive intelligence. Our systems evolve through use, reflecting and amplifying the judgment of the people who work with them. We own every layer, from infra to interface, so intelligence and interaction can evolve in lockstep.
We’re starting with expert software developers. But the platform we’re building will adapt to experts across fields: engineering, research, operations, and beyond.
About the Role
We’re hiring a frontend systems engineer to shape the public and product-facing surfaces of Noumena’s intelligence platform. This is a foundational role where UI isn’t just presentation; it’s how intelligence becomes legible, learnable, and trusted.
You’ll build adaptive, real-time interfaces that sit directly atop our evolving models and runtime systems. You’ll work across modeling, infrastructure, and product teams to ensure every surface you touch feels coherent, structured, and fast, even as it adapts in real time.
This isn’t frontend-as-polish. It’s frontend as interface logic, crafted for experts who think deeply and move quickly.
TypeScript, React, Next.js, Tailwind, Node.js. Bonus points for experience across the stack with Python or Rust and with adaptive or model-facing UI architectures.
What You’ll Do
Architect and build production-grade UIs with real-time feedback loops
Lead implementation of developer-facing experiences (docs, onboarding, auth, billing)
Collaborate with infra and model teams to align interaction patterns with backend logic
Shape internal tools that support structured planning and engineering workflows
You May Be a Good Fit If You:
Have deep expertise with React, TypeScript, and modern frontend architectures (e.g., Next.js, Vite)
Think in systems, not stacks, designing flows and states that remain stable under complexity
Have built production auth, billing, or IAM flows with performance in mind
Write maintainable, performant code that improves every system it touches
Know how to balance clarity and speed across evolving requirements
Lead through quality, setting standards and mentoring others by example
Value developer UX, docs, onboarding, and long-term maintainability
Navigate ambiguity with craft, ownership, and curiosity
Bonus Points For:
Experience building dev-facing platforms, SDKs, or public APIs
Familiarity with identity (Clerk, Auth0, NextAuth) and billing systems (Stripe, Metronome, Orb)
Optimizing frontend systems for global, low-latency users
Experience with SEO metadata, structured data, and indexing
Why This Role Matters
This is the surface where deep systems meet real people. It’s the frontend of a frontier: the invitation to trust, to explore, to build. What you ship will shape how Noumena is seen, understood, and used.
You won’t just polish a product. You’ll craft the public intelligence layer of a vertically integrated system, where every pixel, prompt, and pattern is grounded in clarity, coherence, and control.
Team & Culture
We’re a small, senior team of researchers, engineers, and builders. We value deep ownership, curiosity, and deliberate thinking. We care about coherence, from silicon to syntax, and we move with quiet urgency.
We’re remote-flexible and invest in real-world time together, especially during pivotal build phases. We’re radically deliberate: open to experimentation, allergic to drift, and committed to systems that matter.
Location & Compensation
Remote-flexible (with travel covered for quarterly in-person gatherings)
Open to candidates spending time in the Bay Area during key build phases
Includes meaningful equity : high-impact work means high ownership
Seniority level
Seniority level
Mid-Senior level
Employment type
Employment type
Full-time
Job function
Industries
Technology, Information and Internet
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Inferred from the description for this job
Medical insurance
Vision insurance
401(k)
Paid paternity leave
Paid maternity leave
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Worksite address
workfromhome, CA, 94199, US
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.