Senior Cryptography Engineer — Remote (US)

your Jared; Northern (KY); Hybrid; USD 140,000 - 200,000; Full time

Job summary

Bitwarden is seeking a Senior Software Engineer focused on cryptography to lead the design and development of the key hierarchy and cryptographic protocols that secure millions of users. This remote US role requires expertise in Rust and secure key management with involvement in open source contributions.

You will own encryption systems, collaborate with cross-functional teams, and contribute to both enterprise and open source initiatives while navigating security, scalability, and user

Qualifications

• Strong proficiency in Rust; experience with TypeScript and C# is a plus.
• Experience designing and implementing secure cryptographic protocols.
• Familiarity with OS-level key management APIs and secure storage across platforms.
• Practical knowledge of secure key management: generation, storage, rotation, revocation.
• Ability to evaluate cryptographic libraries for security, performance, and misuse resistance.
• Collaborative and adaptable mindset with excellent communication skills.
• Passion for open source and internet security.

Responsibilities

• Design, develop, and maintain key hierarchies and cryptographic protocols.
• Enforce secure key management across clients and servers to prevent key compromise.
• Design usable APIs that abstract crypto for developers.
• Create and maintain internal and external documentation and specifications.
• Troubleshoot and resolve security vulnerabilities requiring deep system knowledge.

Skills

Rust

TypeScript

C#

Cryptography protocols

Key management APIs

Secure storage

Open source

Problem solving

Communication skills

Job description

Bitwarden is seeking a Senior Software Engineer focused on cryptography to lead the design and development of the key hierarchy and cryptographic protocols that secure millions of users. This remote US role requires expertise in Rust and secure key management with involvement in open source contributions.

You will own encryption systems, collaborate with cross-functional teams, and contribute to both enterprise and open source initiatives while navigating security, scalability, and user