Senior Software Engineer, Security, Docker Desktop

Accountabilities: • Contribute directly to the product codebase using Go, focusing on security-sensitive components such as authentication flows, privilege boundaries, and container runtime behavior.

• Integrate security considerations into everyday engineering activities, ensuring that product features are designed and developed with secure defaults.

• Participate in technical design discussions and code reviews, providing security-focused feedback and identifying potential risks before features reach production.

• Conduct threat modeling and security design assessments for new and existing product capabilities, particularly those involving authentication, authorization, identity management, and container runtime security.

• Act as the primary point of contact between the Desktop engineering team and the central security organization, translating security policies and recommendations into practical engineering solutions.

• Manage incoming vulnerability reports and Common Vulnerabilities and Exposures (CVEs), including validating reported issues, assessing severity, reproducing vulnerabilities, and coordinating remediation efforts.

• Oversee vulnerability disclosure processes, working with external security researchers and internal engineering teams to establish appropriate timelines and ensure issues are resolved effectively.

• Develop, maintain, and improve internal security documentation, engineering guidelines, procedures, and operational runbooks.

• Stay informed about developments in Linux and container security, including namespaces, cgroups, seccomp, AppArmor, Linux capabilities, and evolving Open Container Initiative (OCI) standards.

• Identify opportunities to strengthen container isolation, authentication mechanisms, and overall product security through continuous technical improvements.

• Build strong working relationships across engineering and security teams, encouraging collaboration and promoting security awareness throughout the development process.

Requirements:

• At least 6 years of professional software engineering experience, with meaningful exposure to security-sensitive systems or a strong demonstrated interest in application and infrastructure security.

• Strong proficiency in Go, with proven experience developing, maintaining, and delivering production-grade software.

• Solid understanding of Linux fundamentals relevant to container security, including namespaces, cgroups, Linux capabilities, seccomp profiles, AppArmor, SELinux, rootless containers, and privilege boundaries.

• Familiarity with OCI specifications, container runtime architecture, and the underlying technologies that support containerized applications.

• Working knowledge of identity and access management concepts, including OAuth 2.0, OpenID Connect (OIDC), token management, authentication, and authorization workflows.

• Experience or familiarity with security architecture reviews and threat modeling, with the ability to identify potential vulnerabilities and recommend appropriate mitigation strategies.

• Understanding of vulnerability management processes, including CVE triage, CVSS severity scoring, coordinated vulnerability disclosure, and collaboration with external security researchers.

• Ability to balance security requirements with product functionality, performance, maintainability, and practical engineering constraints.

• Strong software development fundamentals, with an engineering-first mindset and a commitment to writing reliable, maintainable, and secure code.

• Excellent written and verbal communication skills, with the ability to explain complex security concepts and bridge collaboration between dedicated security specialists and product engineering teams.

• Strong problem-solving skills, technical curiosity, and the ability to take ownership of security-related initiatives from investigation through implementation.

• A proactive and collaborative approach, with the ability to work independently while contributing effectively within a globally distributed engineering organization.

Benefits:

• Competitive compensation: Annual base salary ranging from CA$271,150 to CA$434,000 for Canada-based employees.

• Equity compensation: Stock or equity participation for all full-time employees.

• Remote-first flexibility: Work remotely from home, with access to offices in Seattle and Paris for collaboration and team connection.

• Flexible working arrangements: Freedom to organize your schedule while maintaining strong performance and delivery.

• Generous paid time off: Vacation allowance, quarterly Whaleness Days, and a dedicated end-of-year wellness break.

• Home office support: Resources to create a comfortable and productive remote working environment.

• Technology stipend: Monthly allowance equivalent to US$100 net to support work-related technology needs.

• Learning and development: Annual professional development budget for conferences, courses, certifications, and continued education.

• Parental leave: 16 weeks of paid parental leave after six months of employment.

• Comprehensive benefits: Medical coverage, retirement benefits, and paid holidays, with provisions varying by country.

• Company merchandise: Access to branded merchandise and team swag.

• International collaboration: Opportunity to work with a globally distributed team of experienced engineers and security professionals.

• Visa sponsorship: Considered on a case-by-case basis, depending on business needs.

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