Senior Sandbox Runtime Engineer (Remote)

Docker; Greater London; On-site; GBP 118,000 - 191,000; Full time

Benefits offered by this job

Remote-first

PTO

Tech stipend

Learning stipend

Parental leave

Equity for all

Job summary

Docker is seeking a seasoned software engineer to own and advance the sandboxes stack, delivering secure, isolated runtime environments for AI agents. You’ll shape architecture across multiple surfaces, mentor peers, and engage with open-source communities while operating in a remote-first setup.

The role emphasizes hard problems in isolation and security, driving production-scale systems, and contributing to the long-term technical strategy within a globally distributed 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 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 interact with their environment.
• Ability to reason about isolation and security boundaries: what a sandbox should 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.

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.

Skills

Software engineering

Technical leadership

Communication skills

Remote collaboration

Autonomy in remote work

Education

Bachelor's degree in Computer Science or Engineering

Tools

Open source tooling

Job description

Docker is seeking a seasoned software engineer to own and advance the sandboxes stack, delivering secure, isolated runtime environments for AI agents. You’ll shape architecture across multiple surfaces, mentor peers, and engage with open-source communities while operating in a remote-first setup.

The role emphasizes hard problems in isolation and security, driving production-scale systems, and contributing to the long-term technical strategy within a globally distributed team.