Countermeasure Engineer (CEMA)

TL;DR — We’re building the defense layer for the AI age and are looking for a Countermeasure Engineer to operate in the field — identifying cyber-physical threats, acting in real time, and turning those interactions into system learning that compounds globally.

_If you want to operate in environments where nothing is labeled, nothing is stable, and decisions matter immediately — 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?

• First dedicated Countermeasure Engineer operating across global deployments.
• Operate where cyber, physical, and environment collide.
• Make decisions under uncertainty and determine what actually matters.
• Turn field interactions into system learning that improves every deployment.
• Work in environments where precision and judgment matter.
• Gain pre-Series A ownership as one of the first 10 engineers.

What we’re looking for...

• 3–6 years operating in environments involving real-world cyber-physical risk (Wi-Fi, BLE, rogue access points, IoT, robotics, embedded systems)
• Ability to reason across software, networks, hardware, and adversarial behavior.
• Comfortable acting under ambiguity and adapting quickly.
• Ability to identify and assess covert or non-obvious threats (e.g. hidden cameras, rogue sensors, embedded devices)
• Strong engineering fluency (mobile, backend, data, or infra — breadth over specialization)
• Clear communicator — translates chaotic observations into structured insight
• U.S. Person status (export-controlled environments).

Bonus if you’ve...

• Work in elite sports, live production, national-level events, or SOF/IC environments.
• Hands-on with SDRs, packet capture, or technical counter-surveillance tools.
• Operated in forward-deployed or embedded roles.
• Built automation or workflows from real-world data.
• Thrived in an early-stage startup.

What you’ll do...

• Deploy globally for short, high-intensity engagements (~40–50% travel).
• Work directly with teams on the ground in high-stakes environments.
• Identify and assess cyber-physical threats in the field.
• Act in real time to contain, remove, or mitigate threats.
• Convert countermeasures into clear, actionable guidance.
• Brief non-technical stakeholders clearly under pressure.
• Systematize patterns into repeatable frameworks across environments.
• Close the loop by feeding interactions back into system learning.
• Partner with RF, hardware, and product teams.

How we select...

• Short application
• 20-minute intro call
• Technical deep-dive
• Practical problem discussion
• References and offer

Final facts.

Base salary up to $200,000, 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.