Product Engineer, Intelligence Interfaces

Get AI-powered advice on this job and more exclusive features.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/yrAdditional compensation typesRSUsDirect message the job poster from Stealth AI StartupSenior Talent Partner @ Stealth AI start-up (via Talentful)Craft the interface where adaptive systems become legible, structured, and trusted.About NoumenaNoumena is an AI research lab and product company building toward AGI through narrow, adaptive intelligence. We design systems that evolve through use, reflecting and amplifying the judgment of expert users. By owning the full stack, from silicon to interface, we ensure intelligence and interaction evolve in lockstep.We’re starting with expert software developers, but the platform we’re building will adapt to experts across fields: engineering, research, planning, and beyond.About the RoleWe’re hiring a Product Engineer to lead the design and implementation of our most critical user-facing systems: interfaces where real-time model behavior becomes structured, intuitive experience.This is not frontend-as-polish. It’s frontend as product. You’ll work closely with model, infrastructure, and design leads to build tools where adaptive intelligence becomes actionable, visible, and trusted. You’ll define how these surfaces behave, not just how they look. Our users aren’t casual, they’re experts: engineers, researchers, and high-agency builders who demand clarity and precision.TypeScript, React, Next.js, Tailwind, Node.js. Bonus points for experience across the stack with Python or Rust, and with model-adaptive or real-time UIs.ResponsibilitiesArchitect and build responsive, real-time product experiencesDesign opinionated interfaces grounded in user judgment and model feedbackShape UI logic that evolves with system capabilitiesPrototype and iterate interaction paradigms that adapt through useDefine workflows that support deep users, from onboarding to power useYou May Be a Good Fit If You:Have deep experience with React, TypeScript, and dynamic frontend architecturesThink in flows and system constraints, not just layout or stateHave built structured tools for technical users or high-leverage domainsCare about performance, clarity, and long-term architectural healthThrive in zero-to-one product environments and high-agency teamsBonus Points For:Working across the stack (TypeScript, Python, Rust)Building editors, structured planning tools, or real-time UIsDesigning for data-heavy or model-driven applicationsEngineering feedback loops between system use and behaviorWhy This Role MattersThis is the surface layer of Noumena’s intelligence engine, the space where capability becomes clarity. Every interaction you shape becomes a site of adaptation, trust, and refinement. You’re not just building a product, you’re defining how usable intelligence feels.Team & CultureWe’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 & CompensationRemote-flexible (with travel covered for quarterly in-person gatherings)Open to candidates spending time in the Bay Area during key build phasesIncludes meaningful equity: high-impact work means high ownershipSeniority levelSeniority levelMid-Senior levelEmployment typeEmployment typeFull-timeJob functionIndustriesTechnology, Information and InternetReferrals increase your chances of interviewing at Stealth AI Startup by 2xInferred from the description for this jobMedical insuranceVision insurance401(k)Paid paternity leavePaid maternity leaveGet notified when a new job is posted.Sign in to set job alerts for “Software Engineer” roles.Software Engineer, AI Intern (Summer 2025)Software Engineer, AI Intern (Fall 2025)San Francisco, CA $130,000.00-$238,000.00 4 days agoSan Francisco, CA $145,000.00-$230,000.00 5 days agoSoftware Engineer, AI Platform - New GradMountain View, CA $125,400.00-$188,100.00 2 weeks agoSan Francisco, CA $170,000.00-$250,000.00 23 hours agoSan Francisco, CA $170,000.00-$270,000.00 18 hours agoSan Francisco, CA $130,000.00-$190,000.00 5 days agoSoftware Engineer (L4), Content & Business ProductsSan Francisco, CA $150,000.00-$230,000.00 2 months agoSan Jose, CA $112,000.00-$126,000.00 4 hours agoSoftware Engineer, Frontend (All Levels)San Francisco, CA $150,000.00-$220,000.00 1 day agoSan Francisco, CA $56.25-$173,000.00 2 weeks agoSan Francisco, CA $176,000.00-$250,000.00 2 weeks agoSan Francisco, CA $105,600.00-$198,000.00 2 weeks agoSan Francisco, CA $130,000.00-$140,000.00 2 days agoSoftware Engineer I (Intern) United StatesSan Jose, CA $44,000.00-$130,000.00 2 days agoFull Stack Software Engineer - Post-trainingPalo Alto, CA $180,000.00-$440,000.00 2 weeks agoFull Stack Software Engineer (L4), Product Localization EngineeringNew Grads 2025 - Software Engineer, AlgorithmSan Jose, CA $120,000.00-$165,000.00 9 months agoAlameda, CA $130,000.00-$160,000.00 1 week agoSoftware Engineer (L5) - Open Connect PlatformUnited States $100,000.00-$720,000.00 1 week agoSan Francisco, CA $38.00-$51.00 2 weeks agoWe’re unlocking community knowledge in a new way. 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Created: 2025-09-17