Software Engineer, AI & Data Systems

About The RoleWe're a fast-growing, early-stage data infrastructure company building one of the world's largest living identity graphs — spanning billions of individuals — powered by autonomous AI agents operating across the open web. Our 8-person engineering team is looking for a Software Engineer, AI & Data Systems with 1–6 years of experience to build core platform capabilities and customer-facing products.This is a high-ownership role. You'll take ambiguous customer problems, choose sensible architectures, ship products, and own them end-to-end in production. You're expected to use modern AI tools aggressively while maintaining strong engineering judgment and accountability.What You'll DoBuild and ship customer-facing products and core platform capabilities across backend, data, infrastructure, and frontend surfacesDesign and operate high-volume data pipelines and services at massive scale with strong reliability, security, and observabilityBuild AI agents, agent harnesses, and developer tools — then operate them reliably at very large scaleMake architecture decisions, articulate tradeoffs clearly, and iterate designs as assumptions evolveWork directly with founders and customers to translate vague requirements into clear product decisions and working softwareWhat We're Looking ForMust-haves:End-to-end ownership of a production system — from concept through deployment and ongoing operationsStrong backend engineering skills: APIs, data models, and distributed systemsBased in or willing to relocate to San Francisco for a full-time, in-office roleExperience at a talent-dense early-stage startup (seed through Series A/B) shipping across both product and infrastructureHands-on experience building and operating high-volume data pipelinesCS degree from a top-tier universityNice to have:Experience building AI agents, data pipelines, or identity/entity matching systems at scaleFamiliarity with AI-native development: LLMs, agent frameworks, and related toolingAvailable to start by mid-September 2026 for our residency programTech stack includes: Python, distributed systems, data pipelines, LLMs, AI agent frameworks, REST APIs, cloud infrastructure.Note: Visa sponsorship is not available for this role.Compensation & BenefitsSalary: $200,000 – $280,000 USD annually, depending on experienceEarly-stage equityLocationThis is a full-time, on-site role based in San Francisco, CA. Candidates must be based in or willing to relocate to San Francisco.