TL;DR — We’re building humanity’s defense layer for the AI age and are looking for a hacker-minded Full Stack Engineer to ship from day one and own problems end-to-end. If you would have joined Palantir, Nest, or Tesla at the very early start to build an infrastructure from scratch — not just clean datasets — this is that role. Why Sweep? As intelligent machines proliferate into every part of the physical world, we humans still lack a defense layer to ensure the systems and devices we rely on remain aligned with us. We're building that layer today by deploying alongside the world’s highest-stakes teams — Olympic delegations, F1 paddocks, halftime shows, global tours, studio productions, senior government officials, and executive protection units. What we learn there becomes the foundation for a civilization-defining capability. We’re a small, talent-dense team with high ownership, high velocity, and low ego. We care deeply, move fast, and are here to build something that outlasts us. Together, we’ll redefine cyber-physical security for the AI age. What makes this role special? You’ll define how the system is used as the first dedicated full stack engineer . There’s no existing interface for this category . Your work is deployed and tested by real users from day one . Operate in high-stake, high-visibility environments you might not talk about, but won’t ever forget. Shape product direction and technical roadmap. Gain pre-Series A ownership as one of the first 10 engineers. What we’re looking for Polyglot engineer (JS + Python + Rust/Go preferred) who can quickly pick up new tools when needed. Comfortable deploying and integrating with cloud systems (AWS/GCP) in production environments. 5+ years shipping production systems where reliability matters. Worked with LLMs, vector databases, and prompt pipelines . Operates independently, ships fast, and holds a high bar for output. U.S. Person status required (may involve export-controlled data). Bonus if you’ve Built iOS applications. Tinkered with IoT or spatial computing (BLE/WiFi, AR/VR). Obsess over code-quality (SonarQube or similar). Built secure operational dashboards or admin workflows. Optimized database performance under scale. What you’ll do Own user-facing systems and internal tools. Build product systems across web, mobile, and internal tooling. Integrate with backend systems and deploy product-facing services. Leverage LLMs, graph reasoning, and sensor fusion across production systems. Ensure reliability through testing, automation, and tight feedback loops. Work directly with elite users globally (~10–15% travel). How we select Short application 20-minute intro call Technical deep-dive Show us something you’ve built that makes you proud References and offer Final facts. Base salary up to $220,000 , depending on qualifications, experience, and impact. Total compensation includes equity, premium insurance, 401(k), flexible PTO, and other individual benefits. You’ll join us on-site at our HQ in New York City with occasional domestic and global deployments. Apply. Make history. Build humanity’s defense against machines.