Certificate Lifecycle Engineer Jobs

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Today

Sr. Security Engineer

Horizontal Talent Atlanta, GA

Atlanta, GA

Today

Full time Senior Certificate Lifecycle Certificate Management

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Job Description

Senior-level security engineering role focused on enterprise certificate and cryptographic services, with an emphasis on PKI reliability, automation, and standards.

Responsibilities

Support daily operations for PKI infrastructure, including availability, resiliency, and patching
Own certificate lifecycle activities: issuance, renewal, and revocation processes
Maintain and improve certificate inventories across applications and infrastructure to reduce expiration and trust-related risk
Develop and enhance automation for certificate management using APIs, pipelines, scripting, and related tooling
Integrate PKI capabilities with enterprise environments, including CI/CD workflows, cloud services, and application platforms
Help define and enforce standards for certificate usage, cryptography, and associated security policies
Collaborate cross-functionally to support PKI onboarding, tooling adoption, and clear ownership practices
Assist with incident response and remediation involving certificates, encryption, and trust chain issues
Contribute to reporting, visibility, and compliance efforts tied to certificate health and security controls
Participate in modernization work, including evaluation of emerging cryptographic approaches and tools

Requirements

Bachelor’s degree in Computer Science, Cybersecurity, or related field (or equivalent experience)
3–7+ years experience in PKI, cybersecurity engineering, or infrastructure security
Hands-on experience with certificate lifecycle management
Working knowledge of PKI platforms and tools, including Venafi, DigiCert, Microsoft CA, or AWS ACM
Strong understanding of TLS/SSL, cryptographic principles, and key management practices
Ability to collaborate and communicate technical concepts clearly across teams
High attention to detail with a focus on secure, reliable operations

Technologies

Venafi, DigiCert, Microsoft CA, AWS ACM
TLS/SSL
CI/CD
HSMs
AWS, Azure
NIST
PCI-DSS
CMMC

Preferred Skills

Experience with HSMs and key custody operations
Background in PKI automation using scripting, APIs, or pipeline-based workflows
Experience supporting cloud certificate services (AWS or Azure)
Knowledge of compliance frameworks such as NIST, PCI-DSS, or CMMC
Experience supporting PKI at scale in large enterprise environments
Familiarity with trust store management across distributed systems

Location: Atlanta, GA (onsite)

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