Software Engineer Full Stack

## About the role 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.