Senior Developer (Windows), Product Security

About 1Password

At 1Password, we’re building the foundation for a safe, productive digital future. Our mission is to unleash employee productivity without compromising security by ensuring every identity is authentic, every application sign-in is secure, and every device is trusted. We innovated the market-leading enterprise password manager and pioneered Extended Access Management, a new cybersecurity category built for the way people and AI agents work today. As one of the most loved brands in cybersecurity, we take a human-centric approach in everything from product strategy to user experience. Over 165,000 businesses and millions of people trust us to provide seamless, secure access to their most critical information. If you're excited about the opportunity to contribute to the digital safety of millions, to work alongside a team of curious, driven individuals, and to solve hard problems in a fast-paced, dynamic environment, then we want to hear from you. Come join us and help shape a safer, simpler digital future.

Security and data privacy are at the core of everything we do at 1Password. The Product Security Team is responsible for implementing new security features across our macOS, iOS, Android, Windows, Linux and Web applications as well as building libraries to share common security-critical code, resolving security vulnerabilities across our applications, and promoting secure coding practices across the organization.

As a Senior Developer on our Device Security squad, you will play a key role in implementing the next generation of security features in our applications, and help shape our security operations and best practices. You'll be intimately involved in ensuring secure coding practices across our code-base, guiding product teams on best practices, resolving security vulnerabilities in our products when they arise, and demonstrating leadership in the area of secure coding and development.

This is a remote opportunity within Canada or the United States.

What you’ll do

• Work within a small team of developers who are specialists in Rust, Go, Swift, and Security Development
• Implement new security features for the next generation of 1Password and develop secure libraries to share common security-critical code across our applications
• Assist in security design efforts or scoping initiatives for new features by identifying major tasks and breaking down, estimating, and planning work
• Demonstrate leadership in security development and act as a trusted point of contact for management and other developers
• Code, test, debug, deliver and maintain production software systems for new and existing product features
• Collaborate with a variety of teams across our hybrid core architecture from Design to QA, as well as security engineering for design guidance and secure coding practices
• Work with your teammates to communicate technical requirements to stakeholders and solve technical problems in a scalable and realistic way
• Mentor junior and new team members by helping them understand team expectations, providing technical guidance, sharing knowledge, and engaging in pair programming sessions
• Review code for others to maintain high code quality, knowledge share within the team, and support creating a safe environment of giving and receiving feedback
• Stay informed about the latest industry trends, technologies, and best practices in security development

What we're looking for

• 4+ years of experience in software development with a security angle; development experience with modern encryption techniques and libraries or authentication protocols
• 4+ years of hands-on experience with Windows security development with technical expertise in languages such as Rust C#, C/C++, Go or TypeScript
• Experience with Rust development and creating FFI interfaces, especially for Windows.
• Knowledge of Windows OS architecture and platform-specific optimization techniques
• Familiarity with TPM and HSM functionality with proven experience in Windows