Virtualization and Sandboxing Engineer

You build the isolation around models, plugins and remote jobs, so a person can add a useful tool without giving that tool access to their life. The distinction that matters here is between restricting a process and defending against a host that is already compromised, and this role is about the second.

The work:

Evaluate processes, containers, virtual machines and capability-based restrictions against the actual threat model. Implement filesystem and network boundaries, resource quotas and safe lifecycle management. Work with security researchers to test escapes and confused-deputy behavior.

What good looks like:

In your first 90 days, deliver an isolated tool runner with explicit permissions, reproducible attack tests and measured startup and memory costs.

Evidence we look for:

Bring experience with kernel isolation, hypervisors or hardened execution environments. Understand the difference between restricting a process and protecting against a compromised host.

Required:

• Experience with kernel isolation, hypervisors, or hardened execution environments
• You understand the difference between restricting a process and protecting against a compromised host, and design for the second
• You can reason about an escape path before somebody demonstrates it
• Systems programming depth in a language without a garbage collector

Nice to have:

• Secure enclaves, confidential computing, or TEEs
• Sandbox escape research, or offensive security experience
• WASM or comparable portable isolation

The exercise:

Design a document-conversion sandbox that handles malicious files while preventing credential access and unintended network use.

How we work:

We work together in the office, five days a week, and you can be based at any of our garages: Kirkland Garage (Kirkland, WA); UAE Garage (Dubai, Dubai). We hire across the United States, India and the UAE. We are remote-friendly around family: if you need to work from home some days to look after the people you love, we arrange that with you one person at a time, and we encourage people to use it rather than tough it out.

Pay:

We publish what we pay. Indicative ranges by market and level are on our compensation page, and they are realistic going market rates rather than headline numbers. Wherever we hire we pay at least the local market rate, and for full-time roles our floor is a living wage, never the statutory minimum. Compensation is reviewed every year and on promotion.

Equity:

Every full-time teammate gets stock options. Four-year vesting with a one-year cliff, sized to role, level and impact, and confirmed in writing at offer. High performers earn refresh grants.

Bonus and commission:

An annual performance bonus tied to clear company and personal goals, indicatively 10 to 20 percent of base for non-sales roles. Customer-facing roles carry on-target earnings, typically a 50/50 split of base and variable, with uncapped commission and accelerators above quota.

Health and peace of mind:

Medical, dental and vision for you and your family, plus life and disability cover. We have chosen the highest plan tier available to us rather than the cheapest one that clears the bar, because the point of this is that you never have to think about it. The specific plan numbers are confirmed in your offer letter.

401(k) with company matching:

A 401(k) with a company match, so the years you spend here compound into something that is yours whatever happens next. The match formula is confirmed in your offer letter.

AI tokens:

A budget of AI tokens of your own, because a company that says you should own your AI cannot be the company that rations it. Use them on the work and on whatever you are curious about.

Gym, and the everyday things:

A gym membership, and a corporate benefits programme with its own app, where you redeem real discounts with a long list of retailers on the ordinary purchases of a life.

Family:

We are remote-friendly around your family, arranged one person at a time, and we would rather you took it than toughed it out.

Referrals:

Refer someone we hire full-time who stays a year and you get $1,000 plus $10,000 in referral stock-based equity, on top of your own package.

#J-18808-Ljbffr Jobleads-US