DescriptionKeeper Security is hiring a Senior Software Engineer to join our Keeper Secrets Manager (KSM) team. This is a 100% remote position, with an opportunity to work a hybrid schedule for candidates based in the El Dorado Hills, CA area.
About the JobAs a Senior Software Engineer on the KSM team, you will design, develop, and maintain security-critical backend services, SDKs, and integrations that power Keeper Secrets Manager. This role requires a polyglot engineer with deep cryptography expertise. You will work across multiple programming languages and SDKs and are expected to understand cryptographic primitives at an implementation level, not just through high-level libraries. This is not a single-language role.. You will collaborate closely with other senior engineers and security leaders to ensure KSM meets the highest standards for security, correctness, and long-term maintainability.
Responsibilities:- 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)
Classification: Exempt
