Senior Software Engineer (DIRT) - Bitwarden

Bitwarden is the trusted identity security leader for millions of users worldwide, empowering enterprises, developers, and individuals to securely manage and share sensitive information anywhere. Bitwarden makes it easy for all users to extend robust security across their devices with password management, secrets management, and passwordless and passkey innovations. The company is headquartered in Santa Barbara, California with team members located across the globe.

As a Senior Full Stack Engineer on the Data Insights and Reporting (DIRT) team at Bitwarden, your work will directly impact how enterprise administrators understand the security posture of their organizations. You'll build the reports, dashboards, and integrations that turn vault data and activity into actionable intelligence, surfacing at-risk credentials, mapping who has access to what, protecting users from phishing attacks directly in the browser, and streaming events into the SIEM and collaboration tools security teams already rely on. This role combines deep front-end craft, backend API and data work, and the challenge of building meaningful insights on top of a zero-knowledge, end-to-end encrypted product.

Working within Bitwarden's open-source ecosystem, you'll collaborate with a passionate community dedicated to transparency and trust in security software while contributing to our mission of making security accessible to everyone.

This is an all-remote team located in the U.S. Visa sponsorship is not offered at this time.

Responsibilities

• Work collaboratively to build and maintain features across Access Intelligence, event integrations, the browser extension's phishing blocker, our shared Rust core library, and the Bitwarden Splunk app.
• Take ownership of your work, partnering with QA to ensure that the appropriate parts of the application are tested and that tests are complete.
• Design and evolve APIs, data models, and encrypted report structures that hold up to real enterprise-scale data.
• Review PRs and provide constructive, pointed feedback to help fellow team members grow.
• Collaborate with the Bitwarden open-source community to review community contributions and address issues in GitHub.

Requirements

• Extensive experience with .NET Core and C# for backend services.
• Strong proficiency with Angular, TypeScript, and RxJS for front-end development.
• Deep understanding of relational database design, optimization, and SQL Server.
• Demonstrated ability to design and implement RESTful APIs.
• Experience building features for enterprise customers where auditability, permissions, and compliance matter.
• Collaborative and adaptable mindset with excellent communication skills.
• Excitement and enthusiasm for open source and for better internet security.
• Excellent problem-solving skills and ability to find and communicate solutions effectively.

Nice-to-Haves

• Active user of Bitwarden.
• Startup or open-source software experience.
• Experience with Rust, particularly for cross-platform SDKs.
• Python, Splunk, or other SIEM platform experience (Datadog, Elastic, etc.).
• Exposure to zero-knowledge or client-side-encrypted systems.
• Browser extension development (Manifest V3, service workers, IndexedDB).
• Experience using Claude Code or similar generative AI coding platforms.

Interview Process

• Initial call with Recruiting Manager
• Interview with DIRT Engineering Manager
• Panel interview with DIRT team
• Reference checks