Senior Principal Software Engineer, Networking

About Docker
Docker has been one of the most loved brands in developer tooling, trusted by more than 20 million monthly users and over 20 billion container image pulls. From solo founders to the world's largest companies, developers rely on Docker to build, share, and run their applications across our suite of products including Docker Desktop, Docker Hub, and Docker Scout. We are a globally distributed, remote-first team building the tools that define how software gets built and delivered. As AI agents redefine software development, Docker is at the center of that shift, providing the sandboxed environments, verified images, and secure infrastructure that make autonomous workflows trustworthy by default.
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The Senior Principal Software Engineer is responsible for shaping and evolving the company’s technical landscape. In addition to designing, developing, and maintaining core systems, the Senior Principal Software Engineer provides strategic guidance to align technology initiatives with business goals. This role is vital in ensuring that the platform is secure, scalable, and performant—capable of supporting rapid growth and driving innovation.

Responsibilities
Technical Strategy & Architecture
● Define and drive the overarching technical vision, ensuring the platform meets current and future scalability, performance, and security needs
● Evaluate and select tools, frameworks, and architectures to maintain a state-of-the-art technology stack
Leadership & Mentorship
● Provide technical leadership and guidance to the engineering organization, setting best practices and standards.
● Coach and mentor engineers, fostering a culture of continuous learning and collaboration
Innovation & Research
● Investigate emerging technologies, frameworks, and best practices
● Lead prototyping initiatives and proof-of-concepts that can transform the platform’s capabilities
Scalability & Performance
● Ensure the platform is designed for high performance and can seamlessly handle increasing user loads
● Oversee performance optimization, load balancing, and capacity planning strategies
Reliability & Availability
● Design fault-tolerant, highly available systems that minimize downtime and deliver a seamless user experience Infrastructure Automation
● Advocate for and implement Infrastructure as Code (IaC) principles, CI/CD pipelines, and automation best practices
● Continuously refine deployment, testing, and operations processes to improve efficiency
Security & Compliance
● Collaborate with security experts to ensure platform integrity, compliance with industry standards, and protection of sensitive data
● Proactively address security vulnerabilities and champion secure coding practices
Cross-Functional Collaboration
● Work closely with product managers, designers, and other stakeholders to ensure technical initiatives support business objectives
● Drive alignment between engineering roadmaps and product strategies
Technical Problem-Solving
● Tackle complex architectural and technical issues, providing clear direction and innovative solutions
● Serve as an escalation point for critical system challenges
Code Quality & Reviews
● Uphold coding standards through thorough code reviews, ensuring high-quality, maintainable codebases
● Establish and enforce best practices around testing, documentation, and version control
Documentation & Knowledge Sharing
● Produce comprehensive technical documentation, including architectural diagrams, design guidelines, and operational runbooks
● Promote a transparent engineering culture by sharing insights and successes across the organization

Qualifications
● 12+ years of software engineering experience with demonstrated expertise across multiple domains (SDLC, AI engineering, corporate systems, etc)
● Extensive software engineering experience, with a track record in designing and implementing large-scale, dis