Software Engineer, Full Stack

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. #J-18808-Ljbffr Sweep360