Senior PKI Security Engineer - Automation & Compliance

MACHINE LEARNING TECHNOLOGIES LLC; Atlanta (GA); On-site; USD 96,000 - 138,000; Full time

Job summary

MACHINE LEARNING TECHNOLOGIES LLC is seeking a Sr. Security Engineer in Atlanta, GA to design, implement, and operate enterprise PKI infrastructure.

The role focuses on availability, resilience, and secure certificate lifecycle management across large-scale environments. You will integrate PKI with CI/CD pipelines, cloud platforms, and enterprise apps while supporting NIST/CMMC/PCI/TSA compliance and incident response.

Qualifications

• Senior PKI/Security engineer role requiring design, implementation and operation of PKI infrastructure.

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 applications and infrastructure.
• Manage trust stores, certificate chains, and certificate integrity.
• Develop and implement automation for certificate lifecycle management.
• Integrate PKI services with CI/CD pipelines, cloud platforms, and enterprise applications.
• Deploy and operationalize PKI connectors, tools, and automation pipelines.
• Define and enforce certificate usage, cryptographic security, and certificate issuance policies.
• Support compliance requirements related to NIST, CMMC, PCI, and TSA directives.
• Collaborate with application, infrastructure, and security teams to enable certificate automation.
• Assist application teams with PKI onboarding, integration, and operational guidance.
• Identify and remediate certificate expiration, misconfiguration, and trust-related risks.
• Support incident response involving certificate failures and encryption issues.
• Improve certificate health monitoring, reporting, and compliance visibility.
• Support adoption of emerging cryptographic standards, including Post-Quantum Cryptography (PQC).
• Evaluate and implement modern PKI solutions to improve scalability, security, and resilience.

Skills

PKI

Security engineering

Automation

CI/CD integration

Job description

MACHINE LEARNING TECHNOLOGIES LLC is seeking a Sr. Security Engineer in Atlanta, GA to design, implement, and operate enterprise PKI infrastructure.

The role focuses on availability, resilience, and secure certificate lifecycle management across large-scale environments. You will integrate PKI with CI/CD pipelines, cloud platforms, and enterprise apps while supporting NIST/CMMC/PCI/TSA compliance and incident response.