Keeper Security, Inc.

Senior Software Engineer, Cryptography – Secrets Management

Keeper Security, Inc.

full-time

Posted on:

Location Type: Remote

Location: California • United States

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Job Level

Senior

Tech Stack

GoJavaJavaScript.NETPythonRubyRust

About the role

  • 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)
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
JavaJavaScriptPython.NETGoRustRubycryptographyAPI designsecure coding practices
Soft Skills
problem-solvingdebuggingcommunication
Certifications
Bachelor’s degree in Computer ScienceBachelor’s degree in Engineering