Senior PKI Engineer: Automation & Certificate Lifecycle

Valiant Technologies LLC; Atlanta (GA); On-site; USD 81,000 - 115,000; Full time

Job summary

Valiant Technologies LLC in Atlanta seeks a Sr. Security Engineer to design, deploy, and manage an enterprise PKI infrastructure. You will ensure high availability, oversee certificate lifecycles, and drive automation across large-scale environments.

You will collaborate with application, infrastructure, and security teams, implement modern PKI practices, and align with NIST, CMMC, PCI, and TSA requirements. This role is focused on PKI resilience and secure cryptographic operations.

Qualifications

• Experience designing, implementing, operating enterprise PKI infrastructure.
• Strong understanding of certificate lifecycle management and trust stores.
• Familiarity with integrating PKI with CI/CD pipelines and cloud platforms.

Responsibilities

• Design, implement, operate, and maintain enterprise PKI infrastructure.
• Ensure availability, resiliency, patching, and stability of PKI services.
• Manage certificate lifecycle activities including issuance, renewal, revocation, and replacement.
• Administer large-scale certificate environments across enterprise apps and infrastructure.
• Develop and implement automation for certificate lifecycle management.
• Integrate PKI services with CI/CD pipelines, cloud platforms, and enterprise apps.
• Define and enforce certificate usage and cryptographic policies.
• Support compliance with NIST, CMMC, PCI, and TSA directives.
• Collaborate with application, infrastructure, and security teams to enable certificate automation.

Skills

PKI expert

Certificate lifecycle mgmt

Automation

CI/CD integration

Security collaboration

Tools

PKI tools

Job description

Valiant Technologies LLC in Atlanta seeks a Sr. Security Engineer to design, deploy, and manage an enterprise PKI infrastructure. You will ensure high availability, oversee certificate lifecycles, and drive automation across large-scale environments.

You will collaborate with application, infrastructure, and security teams, implement modern PKI practices, and align with NIST, CMMC, PCI, and TSA requirements. This role is focused on PKI resilience and secure cryptographic operations.