Software Engineer, Full Stack

Sweep360 Inc.; New York (NY); On-site; USD 198,000 - 242,000; Full time

Job summary

Sweep360 Inc. seeks 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. You'll be the first dedicated full stack engineer, building across web, mobile, and internal tooling, deploying with AWS/GCP, and working on high-stakes environments in New York City with occasional travel to domestic/global

Qualifications

• 5+ years shipping production systems where reliability matters.
• 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.
• 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).

Responsibilities

• 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).

Skills

Polyglot Engineer

JS/Python/Rust

AWS/GCP

LLMs/Vector DBs

US Person status

Job description

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.