Senior Software Engineer - PKI

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The Product Cybersecurity PKI & Key Mgmt Security Services team generates, distributes, stores, and manages lifecycle for the cryptographic keys in the vehicle product ecosystem. This includes developing and maintaining in-house APIs and web services to provide confidentiality, integrity and authenticity protection for various use cases and features in the product ecosystem.

The Product Cybersecurity PKI & Key Mgmt Security Services team is directly engaged with the entire end-to-end solution for Vehicle Products and ecosystem, providing key management, PKI certificate lifecycle management and relative security services that support everything from ECU manufacturing to customer facing features.

In addition to managing the product ecosystem cryptographic keys, the team develops and maintains various security API services built on the foundation and usage of cryptographic keys - including vehicle secure messaging from cloud, software signing, UDS diagnostics, EV charging and more. Our infrastructure cloud and on-premises servers and hardware security modules (HSM) running our services and powering our product PKI.

The Product Cybersecurity PKI & Key Mgmt Security Services team generates, distributes, stores, and manages lifecycle for the cryptographic keys in the vehicle product ecosystem. This includes developing and maintaining in-house APIs and web services to provide confidentiality, integrity and authenticity protection for various use cases and features in the product ecosystem. We are seeking an exceptional Senior Software Engineer specializing in Public Key Infrastructure (PKI), Key Management, and secure API services to own the end-to-end lifecycle of mission-critical cryptographic systems.

We are seeking an exceptional Senior Software Engineer specializing in Public Key Infrastructure (PKI) and secure API services to own the end-to-end lifecycle of mission-critical cryptographic systems. You will design, build, deploy, and maintain high-assurance PKI APIs that power certificate issuance, lifecycle management, revocation, and integration for enterprise and cloud-native environments.

This is not a support or maintenance role. You will own products, drive architecture, interface directly with customers, and deliver production-grade systems that protect billions in digital assets. The ideal candidate is a world-class software engineer who treats code as craft, thrives in ambiguity, has a deep understanding of foundational cybersecurity strategies and algorithms, and builds trusted relationships with security architects and product development teams.

Key responsibilities include:

* End-to-End Ownership:
Lead the full lifecycle of PKI and Key Management API services supporting our vehicle products and ecosystem - lead customer requirements gathering, architecture design, implementation, testing, deployment, monitoring, and post-launch support.

* Design and develop RESTful APIs and web services that are robust, secure, and scalable for various features and use cases: CRL/OCSP, ACME, Certificate Issuance, message encryption/decryption, software signing, key rotation and certificate lifecycle management, HSM integration with PKCS
11. Implement access control methods that enforce least privilege access principles using OAuth or mTLS.

* Cryptographic Engineering:
Implement and harden PKI and key services with deep knowledge of PKI industry standards, X.509, PKCS standards, elliptic curve cryptography (ECC) and RSA, post-quantum readiness, and hardware security module CSP integration. Apply hybrid encryption techniques with AES. Define and enforce PKI certificate policies and certificate profiles.

* Secure Systems Architecture:
Design fault-tolerant, highly available PKI services with zero-downtime issuance, disaster recovery, and multi-region replication.

* Infrastructure and CI/CD Integration:
Release and Deploy your apps through build server, CI/CD…