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poolside
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Remote - East Coast
Last seen September 6, 2026
Posted July 18, 2026 · 50 days ago
Est. expiry August 22, 2026

Member of Engineering (Agent Sandboxes)

Engineering Member
Remote - East Coast
RemoteFull-time, Mid-Level
Job description

You will be part of the Applied Research Engineering group. Your focus will be on the sandboxed Agent execution environment. You will design, develop and operate services and systems that enable running agent sessions in a rich and safe environment at scale. You will also explore and evaluate different isolation techniques. You will bring Poolside’s Agent to new platforms and environments. You will also improve the reliability and performance of the systems behind the execution environment. Some of previous related works were discussed in this blog post. Prior experience in sandbox techniques and container runtimes is not a requirement, but it will be highly welcomed. Besides the technical background, we value candidates who can balance between speed and quality, who are self-driven, are willing to reprioritize works based on evolving project needs, and can distinguish between high impact tasks and trivial optimizations. Your mission is to deliver a secure, reliable and performant sandboxed Agent execution environment to meet both the research and product needs at poolside. Responsibilities include designing and developing a sandboxed execution environment, owning the complete development cycle of new features, collaborating with other teams, and continuously improving reliability and performance.

The text below is the employer's original job description, extracted as written. Other details on this page, like salary, responsibilities, and requirements, are interpreted from that text by our system, not values the employer explicitly confirmed, so treat them as our best interpretation rather than verified facts.

Skills & Technologies
GoCC++PythonKubernetesAWS
Education Level
No degree required
Benefits & Perks
Flexible Working Hours6 weeks vacation
Responsibilities
  • Design and develop sandboxed execution environment
  • Own the complete development cycle of new features
  • Collaborate with other teams
  • Continuously improve reliability and performance
Requirements
  • Strong programming skills in Go, C, C++ or Python
  • Comfortable with distributed systems
Recruitment Process
  1. Intro call with a member of Applied Research Engineering
  2. Technical Interview part 1
  3. Technical Interview part 2
  4. People Interview
  5. Final Interview
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poolside · 14 open roles
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