Braintrust is hiring a

Cryptography and Security Engineer - Freelance [Remote]



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  • JOB TYPE: Freelance, Contract Position (no agencies/C2C - see notes below)
  • LOCATION: Remote - Work from anywhere (TimeZone: CST | Partial overlap)
  • HOURLY RANGE: Our client is looking to pay $65 – $75/hr
  • ESTIMATED DURATION: 40h/week - Long term



  • 5+ years of proven experience in Cryptography

  • Bachelor's, Master's, or related degree in Computer Science, Cryptography,

    Mathematics, or a related field

  • Knowledge and experience in enterprise architecture frameworks

  • Strong knowledge of cryptography (AES, hashing, one-time pad, etc.) offerings

  • Hands on experience working with private and public keys, network and

    application encryption, mobile device, MFA, on prem and cloud encryption

    methods and protection

  • Strong experience working with hardware or IOT Devices

  • Demonstrated working experience in remote globally-distributed environment

  • Experience within the biometric industry, helpful


What you’ll be working on

Summary and Skills


Our client is looking for a highly experienced Cryptography and Security Engineer to join their team to help us continue to evolve the biometric capture systems that provide the foundation for biometric authentication within the company's network. The ideal candidate will play a pivotal role in designing, developing, and analyzing cryptographic algorithms and systems to ensure the secure communication, authentication, and integrity of sensitive data.

You will be working with their Security Manager, Biometric team, and hardware teams towards the development of secure and robust cryptographic solutions that protect sensitive information and ensure the privacy and security of our client's organization and its stakeholders.



  • Design and develop cryptographic algorithms, protocols, and systems to provide secure communication, authentication, data integrity, and non-repudiation.

  • Contribute to the development and maintenance of cryptographic standards, policies, and procedures.

  • Align our client’s security goals with security standards frameworks: SOC2, NIST - CSF, ISO 27001, CSA CCM, PCI-DSS, GDPR

  • Work closely with the Security Manager to set best practices, protocols, and methodologies consistent with cryptographic industry standards

  • Assess upcoming SLAs and design future proof solutions for deployments

  • Collaborate with computer vision engineers, infrastructure engineers, CPO, and

    biometric teams to integrate cryptographic mechanisms into products and


  • Hands on experience working with private and public key cryptography

  • Maintain regular risk mitigation and governance practices associated with


Apply Now!

Braintrust Job ID: 6710


C2C Candidates: This role is not available to C2C candidates working with an agency. If you are a professional contractor who has created an LLC/corp around their consulting practice, this is well aligned with Braintrust and we’d welcome your application.

Braintrust values the multitude of talents and perspectives that a diverse workforce brings. All qualified applicants will receive consideration for employment without regard to race, national origin, religion, age, color, sex, sexual orientation, gender identity, disability, or protected veteran status.

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