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Principal Software Engineer, Docker Agents

United Kingdom, London · Job Posted February 21, 2026
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Job Description

We are looking for a Principal Software Engineer (Docker Agents) to join Docker’s AI engineering team to build the future of containerized AI agents. Docker containers are the perfect vehicle to host and run AI agents—providing isolation, portability, and reproducibility. You’ll be working on cagent, our open-source project, and expanding on it to enable developers to build, deploy, and scale intelligent agents using Docker’s container technology. This is a greenfield opportunity to shape how developers leverage containers for AI agents at massive scale. You’ll define the technical vision, lead architecture decisions, and partner with engineers and leaders across Docker to bring containerized agent capabilities into Docker’s developer experience.

Job Responsibility

  • Define and drive the long-term technical strategy for Docker’s containerized agent platform, including core primitives, APIs, and extensibility patterns
  • Design and implement systems that leverage Docker containers as the ideal runtime for AI agents, ensuring isolation, scalability, and portability
  • Maintain and evolve the open-source cagent project, adding new capabilities for containerized agent deployment, orchestration, and lifecycle management
  • Build robust infrastructure for packaging, deploying, and managing agents in containers across local and cloud environments
  • Define evaluation frameworks to measure agent quality, reliability, and production readiness
  • plus the deployment effectiveness of containerized runtimes
  • Establish standards for observability, performance, and operational excellence
  • lead critical production decision-making and incident learnings as needed
  • Iterate quickly on new agent capabilities and deployment patterns, moving from concept to production efficiently
  • Engage with the cagent community, review contributions, and help grow the ecosystem
  • Lead cross-functional technical discussions and influence architectural decisions across Docker’s AI initiatives
  • Mentor senior engineers, raise the bar through design reviews, and accelerate team execution through clear technical direction and coaching

Requirements

  • Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience
  • 10+ years of software engineering experience, including 3+ years in technical leadership roles (Staff/Principal level or equivalent scope)
  • Strong proficiency in Go (this is absolutely required)
  • Practical experience with large language models (LLMs) and agent development patterns
  • Proven ability to design scalable, distributed systems in production environments
  • Deep understanding of Docker, containerization best practices, and container orchestration
  • Experience building and operating platform services with strong foundations in observability, CI/CD, and security principles
  • Experience operating and evolving high-availability production systems with a focus on reliability and performance
  • Exceptional communication skills and ability to influence across technical and business domains

Nice to have

  • Experience with AI frameworks like CrewAI, AGNO, ADK, LangChain/LangGraph or similar AI orchestration frameworks
  • Experience with Python for AI prototyping and tooling
  • Experience with Kubernetes or container orchestration platforms
  • Open source contributions and community engagement
  • Experience with agent evaluation, reliability, and observability techniques

What we offer

  • Freedom & flexibility
  • fit your work around your life
  • Designated quarterly Whaleness Days plus end of year Whaleness break
  • Home office setup
  • we want you comfortable while you work
  • 16 weeks of paid Parental leave
  • Technology stipend equivalent to $100 net/month
  • PTO plan that encourages you to take time to do the things you enjoy
  • Training stipend for conferences, courses and classes
  • Equity
  • we are a growing start-up and want all employees to have a share in the success of the company
  • Docker Swag
  • Medical benefits, retirement and holidays vary by country
  • Remote-first culture, with offices in Seattle and Paris
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