Senior Software Engineer, Cryptography

Bitwarden

Senior Software Engineer specializing in cryptography for Bitwarden. Leading design and development of key hierarchies and cryptographic protocols for secure and performant systems.

Posted 6/15/2026full-timeRemote • 🇺🇸 United StatesSenior💰 $140,000 - $200,000 per yearWebsite

Tech Stack

Tools & technologies

Open SourceRustTypeScript

About the role

Key responsibilities & impact

Support Bitwarden goals by designing, developing and maintaining key hierarchies and cryptographic protocols that are secure and performant
Design and enforce secure key management practices across clients and servers to prevent key compromise and protect sensitive cryptographic material
Help design usable APIs that abstract crypto correctly for other developers
Build and maintain both internal and external documentation and specifications
Troubleshoot and resolve complex security vulnerabilities and issues that require deep technical knowledge of our systems

Requirements

What you’ll need

Strong proficiency and experience in Rust. Experience with TypeScript and C# are a plus.
Experience designing and implementing secure cryptographic protocols
Familiarity with OS-level key management APIs and secure storage mechanisms across platforms
Practical knowledge of secure key management practices, including key generation, storage, rotation, and revocation
Ability to evaluate cryptographic library security, performance, and misuse resistance
Collaborative and adaptable mindset
Openness and authenticity combined with excellent communication skills
Excitement and enthusiasm for open source and for better internet security
Excellent problem-solving skills – you might not know all the answers, but you know how to find and communicate the solution

Benefits

Comp & perks

Learn and grow. Take on new challenges with the support of your team, and join our #growth-club to continue personal and professional development.
Our user community loves us and we love them. Come to work each day with a sense of purpose as we bring a more secure internet experience to everyone from our friends and family to the world’s largest organizations.
Become an expert. You’ll get immersed in the prominent technology markets of security and open source software.
We are dedicated to building a diverse and talented team. Work remotely with motivated and supportive team members across the world.

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Hard Skills & Tools

RustTypeScriptC#cryptographic protocolskey management practiceskey generationkey storagekey rotationkey revocationcryptographic library evaluation

Soft Skills

collaborative mindsetadaptable mindsetcommunication skillsproblem-solving skillsopennessauthenticityenthusiasm for open sourceexcitement for internet security