Security Engineer, AI-Native Sandbox & Browser Infra (SF In-Person)

Alkonos, Inc.; San Francisco (CA); On-site; USD 180,000 - 260,000; Full time

Benefits offered by this job

Equity

Visa sponsorship

In-office in San Francisco

Job summary

Wakefield is an applied research lab delivering AI-native security services. We build security agents and publish how they work, with public data and benchmarks. Our team runs sandboxes and browser automation to test customer apps against new AI model releases, keeping data isolated and secure.

We hire for hands-on engineers who design from scratch, scale production infra, and ship code daily. Location is San Francisco, in person, with visa sponsorship and meaningful equity.

Qualifications

• 2+ years of engineering experience, or equivalent depth from research, open source or your own projects.
• Time at a fast-growing startup
• You've designed and built systems from scratch
• You've scaled and operated production infrastructure under real load
• Strong systems fundamentals: distributed systems, Linux, Kubernetes, networking, concurrency
• You use coding agents every day and still understand every line you ship
• You build and tinker for fun because you genuinely care about how the technology works

Responsibilities

• Own sandboxes that start fast and can be replayed across long scans.
• Develop browser infrastructure for agents signing in as multiple roles.
• Manage the egress proxy and per-org rate limits and full records.
• Run scans on demand, on PRs, and with every model release.
• Ensure tenant isolation and a single deployment model for cloud and customer-hosted instances.
• Contribute to internal AI tooling for infra monitoring and maintenance

Skills

Engineering experience

Startup experience

System design

Distributed systems

Linux

Kubernetes

Networking

Concurrency

Production infrastructure

Coding automation

Tools

Sandboxing

Browser automation

Durable execution

Job description

Wakefield is an applied research lab delivering AI-native security services. We build security agents and publish how they work, with public data and benchmarks. Our team runs sandboxes and browser automation to test customer apps against new AI model releases, keeping data isolated and secure.

We hire for hands-on engineers who design from scratch, scale production infra, and ship code daily. Location is San Francisco, in person, with visa sponsorship and meaningful equity.