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 Must Have - Strong experience with cryptography, PKI design, and key management - Experience working with hardware security modules (HSMs), including vendor selection, integration, and root‑of‑trust establishment - Familiarity with remote device attestation frameworks (such as fTPM, OP‑TEE, or similar) - Demonstrated ability to design and scale secure firmware signing and code signing pipelines - Proven track record in defining and enforcing trust policies (key generation, rotation, destruction) and provisioning mechanisms - Experience securing build/artifact pipelines and developing secure communication protocols - Ability to work cross‑functionally with hardware, software, security operations, and infrastructure teams - High attention to detail, strong problem solving, with a mindset of anticipating vulnerabilities and designing defendable systems Nice to Have: - Vendor-specific HSM credentials or labs (Thales, Utimaco, AWS CloudHSM) - NVIDIA Orin or similar SoC platform experience - Background in post-quantum crypto evaluation and migration planning - Familiarity with large-scale factory provisioning tools (KMIP gateways, ACME/SCEP) - ProdSec/supply-chain security expertise (SBOMs, CI/CD hardening) - Experience in C/C++/Rust/GoLang (in addition to Python / Bash) - GoLang preferred - Additional security certifications Benefits & Compensation - Salary Range: $137,861 – $240,000 + Equity - Health, dental, and vision insurance - 401(k) with company match - Paid time off and holidays Equal Opportunity Employer 1X is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, ancestry, citizenship, age, marital status, medical condition, genetic information, disability, military or veteran status, or any other characteristic protected under applicable federal, state, or local law.