Sr. Security Engineer

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

Job summary

Machine Learning Technologies, LLC seeks a Sr. Security Engineer in Atlanta to design, implement, operate, and maintain an enterprise PKI infrastructure, ensuring availability and resilient certificate management.

You will integrate PKI with CI/CD pipelines and cloud platforms, enforce cryptographic policies, and support NIST/CMMC/PCI/TSA compliance. The role emphasizes automation, monitoring, and cross-team collaboration.

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

Certificate management

Automation

CI/CD integration

Cryptography

Cloud platforms

Security engineering

Incident response

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Job Title:Sr. Security Engineer
Location: Atlanta,GA
Duration: 10 Months + Extension
Bill Rate: $71/hour
Job Type: W-2, 1099, C2C
Client: To Be Discussed Later
Work Authorization: US-Citizen, H-1B, OPT-EAD, GC-EAD

Job Description

• 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.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.