Senior Software Engineer, Cryptography – Secrets Management

Job Description: • Design, develop, and maintain secure backend services and APIs for Keeper Secrets Manager • Build and maintain SDKs and integrations used by developers across multiple languages • Implement and review cryptographic functionality including encryption, key management, and signing workflows • Work fluently across multiple programming languages depending on SDK, platform, and security requirements • Contribute to architectural decisions related to cryptography, secrets handling, and secure system design • Ensure performance, reliability, and security of KSM services in production environments • Participate in code reviews with a strong focus on correctness, security, and cryptographic soundness • Maintain clear technical documentation and contribute to open-source components where applicable • Stay current with modern cryptography standards, emerging threats, and post-quantum developments Requirements: • 5+ years of professional software engineering experience in backend or platform development • Strong proficiency across multiple programming languages, including several of the following: Java, JavaScript, Python, .NET, Go, Rust, and Ruby • Demonstrated ability to move fluently between languages based on SDK, platform, performance, or security requirements • Strong understanding of cryptography concepts, including symmetric and asymmetric encryption, elliptic curve cryptography, and secure key management • Familiarity with post-quantum cryptography concepts and emerging algorithms • Experience implementing, reviewing, or debugging cryptographic code beyond simply calling third-party libraries • Strong understanding of secure coding practices, threat modeling, and secrets management systems • Experience designing and building APIs, SDKs, or integration-heavy platforms • Strong problem-solving, debugging, and communication skills • Bachelor’s degree in Computer Science, Engineering, or equivalent practical experience Benefits: • Medical, Dental & Vision (inclusive of domestic partnerships) • Employer Paid Life Insurance & Employee/Spouse/Child Supplemental life • Voluntary Short/Long Term Disability Insurance • 401K (Roth/Traditional) • A generous PTO plan that celebrates your commitment and seniority (including paid Bereavement/Jury Duty, etc)