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Senior Software Engineer, Sandboxes (London or East Coast Preferred)

Docker· Engineering
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Remote$160.9k - $260.7kFull-timePosted 2mo ago

About the role

Senior software engineer focused on sandbox runtimes for AI agent workloads, building secure, isolated environments (sandboxes, containers, or VMs) with production-scale reliability and security.

Responsibilities

  • Design, develop, and lead improvements to the sandboxes product across agent integration, tool permissions, and developer-facing workflows.
  • Investigate and resolve correctness, performance, and stability issues in the agent integration layer across macOS, Windows, and Linux.
  • Drive the reliability and performance of sandbox creation, session management, and teardown for AI agent workloads.
  • Collaborate with peers, Product, and adjacent teams to evolve the architecture as requirements grow.
  • Mentor engineers on the team and set the bar in design reviews and code reviews.
  • Engage with the open source and agentic development community around sandboxing, MCP, and related ecosystems.
  • Participate in on-call rotations and respond to critical stability issues affecting users.
  • Document your work clearly and share knowledge with the rest of the team.

Qualifications

  • 8+ years of software engineering experience, with demonstrated technical leadership on production systems at scale.
  • Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience
  • Experience building developer tools, desktop applications, or runtime infrastructure used directly by developers.
  • Familiarity with the agentic software development ecosystem: how coding agents work and how tools like Claude Code, Codex, or similar agents interact with their environment.
  • Ability to reason about isolation and security boundaries: what a sandbox should and shouldn't expose, and how to make safe defaults obvious to users.
  • Experience driving architecture and technical strategy across multiple engineers or teams.
  • Strong written and verbal communication skills.
  • Comfortable working with a high degree of autonomy in a remote-first environment.

Skills

Required:Software engineeringDistributed systemsSecurity architecture

Benefits

  • Remote-first by design – Work from your home, with offices in Seattle and Paris for connection and collaboration.
  • Flexibility that fits your life – We trust you to manage your schedule while delivering great work.
  • Time to recharge – Generous PTO, designated quarterly Whaleness Days, and a designated end-of-year Whaleness break.
  • Home office support – Set up your workspace for comfort and success.
  • Technology stipend – Equivalent to US$100 net per month to help support your work.
  • Learning & development – Annual stipend for conferences, courses, certifications, and continued learning.
  • Parental leave – 16 weeks of paid parental leave after six months of employment.
  • Equity for all full-time employees – Share in Docker's long-term success as we continue to grow.
  • Comprehensive benefits – Medical, retirement, and paid holidays vary by country.
  • Docker swag – Representation and brand perks.
Last updated Aug 26, 2026. Interested? Apply on the company site.
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Accelerated Container Application Development

Docker is a platform designed to help developers build, share, and run container applications. We handle the tedious setup, so you can focus on the code.

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