Sr. Security Engineer

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

Job Overview

Sr. Security Engineer

Job Details

• Job ID: J54136
• Job Title: Sr. Security Engineer
• Location: Atlanta, GA
• Duration: 10 Months + Extension
• Domain Exposure: Government
• Client: To Be Discussed Later
• Employment Type: W-2, 1099, C2C
• Job Type: W-2, 1099, C2C
• Work Authorization: US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other
• Bill Rate: $71/hour

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.

Equal Opportunity Employer

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.