Sr. Security Engineer

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

Job summary

Ethereum Technologies is seeking a Sr. Security Engineer in Atlanta to design and operate secure PKI services across the enterprise. You will ensure availability, patching, and resilience of PKI infrastructure while collaborating with application, infra, and security teams.

The role focuses on certificate lifecycle management, automation, and integration with CI/CD pipelines and cloud platforms. A strong emphasis on cryptographic security, policy enforcement, and compliance with NIST and related

Qualifications

• Extensive experience designing and operating enterprise PKI.
• Strong knowledge of certificate lifecycle management and renewal workflows.
• Experience automating certificate workflows and tooling.
• Experience integrating PKI with CI/CD pipelines and cloud platforms.
• Familiarity with NIST, CMMC, PCI compliance guidance.

Responsibilities

• Design, implement, and maintain enterprise PKI infrastructure.
• Ensure availability, resiliency, patching, and stability of PKI services.
• Manage certificate issuance, renewal, revocation, and replacement.
• Automate certificate lifecycle management processes.
• Collaborate with DevOps, security, and application teams on PKI onboarding.

Skills

PKI management

Certificate lifecycle

Automation

CI/CD integration

Security compliance

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.