Senior Software Engineer - Secure AI Sandboxes & Runtime

Docker

United Kingdom

Remote

GBP 80,000 - 132,000

Full time

14 days+

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Benefits offered by this job

Freedom & flexibility

Whaleness Days (quarterly)

Home office setup

16 weeks parental leave

Technology stipend

Equity

Remote-first culture

Job summary

Docker is a globally distributed, remote-first company building sandboxes for autonomous AI agent workloads. We seek a seasoned software engineer with deep experience in secure, isolated runtime environments and a track record of shipping infrastructure at scale.

The role emphasizes architectural leadership across teams, strong communication, and ownership of sandbox lifecycle from design to deployment, with collaboration across macOS, Linux, and Windows environments.

Qualifications

8+ years of software engineering experience with 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 and how coding agents interact with environments.
Ability to reason about isolation and security boundaries and safe defaults for sandboxed environments.
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.