Product Security Engineer - Cryptography and PKI
Confidential
Posted: March 21, 2026
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Quick Summary
Design and manage end-to-end cryptographic services, including PKI and key lifecycle management for 1X’s robots and communications, ensuring trust, integrity, and long-term security across hardware and software systems.
Required Skills
Job Description
Product Security Engineer, Cryptography & PKI
San Carlos, CA (on-site)
About 1X
We build humanoid robots that work alongside people to solve labor shortages and create abundance.
The Role
As a Product Security Engineer specializing in cryptography and PKI, you will build and scale the cryptographic infrastructure that secures 1X’s robots and communications. Your work will ensure trust, integrity, and long-term security across the company’s hardware and software systems.
You Will
• Design and manage end-to-end cryptographic services, including PKI and key lifecycle management
• Establish HSM infrastructure as the root of trust for firmware signing and IoT authentication
• Lead the evaluation, procurement, configuration, and integration of HSM vendor solutions
• Architect scalable key management systems for future growth
• Design remote device attestation mechanisms leveraging technologies such as fTPM or OP-TEE
• Build and automate secure pipelines for firmware and bootloader signing
• Define infrastructure and policies for author key provisioning, rotation, and destruction
• Secure build systems and code-signing workflows
• Develop factory provisioning architecture for mass key and certificate distribution
• Support secure communication protocol development
• Collaborate with cross-functional teams including Product Security, Cloud Infrastructure, Device Engineering, and SecOps