PKI, Certificate Management Engineer

True Zero Technologies, LLC

PKI engineer managing enterprise certificates, HSMs, and Zero Trust authentication. Supporting True Zero Technologies’ regulated government and defense security environments.

Posted 8/14/2026full-timeRemote • 🇺🇸 United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing, implementing, and managing enterprise Public Key Infrastructure (PKI) with a strong focus on certificate lifecycle management, cryptographic operations, and integration with cloud services. Proficient in ensuring compliance with Federal and DoD PKI standards while maintaining secure communications and governance practices.

Highest-signal resume keywords

Public Key Infrastructure (PKI) ManagementCertificate Lifecycle ManagementAWS Certificate ManagerAutomated Certificate Issuance (ACME)Cryptography and Encryption

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

X.509 CertificatesCertificate AuthoritiesTrust ChainsKey ManagementRevocation ManagementMTLS ImplementationTLS ConfigurationCertificate DiscoveryCryptographic AlgorithmsSecure Communications

Soft Skills

GovernanceRisk ManagementDocumentationTroubleshootingCross-Functional Collaboration

Tools & Technologies

AWS Private Certificate AuthorityAWS CloudHSMIAM PlatformsDirectory ServicesNetwork Infrastructure

Certifications & Qualifications

AWS Certified Security – SpecialtyMicrosoft Certified: Cybersecurity Architect Expert (SC-100)Red Hat Certified Engineer (RHCE)Microsoft Certified: Windows Server Hybrid Administrator AssociateEntrust or DigiCert PKI Certifications

Industry Keywords

Federal PKIDoD PKICAC/PIV AuthenticationZero Trust ArchitecturesFIPS-Validated Cryptography

Tech Stack

Tools & technologies

AWSCloudCyber SecurityLinux

About the role

Key responsibilities & impact

Design, implement, and maintain enterprise Public Key Infrastructure (PKI) supporting internal and external certificate requirements
Manage the full certificate lifecycle, including request, issuance, validation, distribution, renewal, revocation, expiration, and retirement
Implement and maintain ACME-based certificate automation and automated enrollment and renewal workflows
Manage certificates across Windows, Linux, cloud platforms, containers, applications, load balancers, network devices, and other enterprise systems
Design and operate integrations with AWS Private Certificate Authority, AWS Certificate Manager, and related AWS services
Implement and administer HSM capabilities, including AWS CloudHSM, for private-key protection and cryptographic operations
Support Federal PKI and DoD PKI trust relationships, certificate chains, and interoperability requirements
Integrate CAC/PIV authentication with enterprise applications, identity platforms, operating systems, and secure access workflows
Implement and maintain mutual TLS (mTLS) for workload identity, service-to-service authentication, and Zero Trust communications
Ensure cryptographic implementations use FIPS-validated modules and approved algorithms where required
Establish certificate discovery, inventory, monitoring, and alerting to identify unmanaged certificates and prevent expiration-related outages
Develop governance standards for certificate ownership, issuance, naming, key length, algorithms, renewal periods, revocation, and retention
Integrate certificate management with IAM platforms and authentication workflows
Support secure networking and communications through TLS, mTLS, certificate-based authentication, and encryption standards
Monitor PKI platform health, certificate status, revocation services, HSM operations, and certificate expiration events
Troubleshoot certificate-chain, trust-store, TLS, cryptographic, enrollment, renewal, and authentication issues
Partner with cybersecurity, identity, cloud, platform, network, and application teams to integrate PKI services into enterprise architectures and deployment workflows
Maintain PKI architecture documentation, certificate policies, operational procedures, runbooks, governance standards, and audit evidence

Requirements

What you’ll need

Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, Information Systems, or a related technical discipline
Demonstrated experience designing, implementing, or administering enterprise Public Key Infrastructure (PKI)
Strong knowledge of X.509 certificates, certificate authorities, trust chains, cryptographic algorithms, key management, revocation, and certificate lifecycle management
Experience implementing automated certificate issuance and renewal using ACME or comparable technologies
Experience managing certificates across Windows, Linux, cloud, containerized, network, and application environments
Hands-on experience with AWS Private CA, AWS Certificate Manager, AWS CloudHSM, or comparable cloud PKI and HSM technologies
Strong understanding of cryptography, encryption, digital signatures, hashing, key exchange, and secure communications
Experience integrating PKI with IAM, directory services, applications, network infrastructure, and cloud services
Familiarity with Federal PKI, DoD PKI, CAC/PIV authentication, and government certificate trust models
Experience implementing mTLS and certificate-based workload identity in Zero Trust architectures
Familiarity with FIPS-validated cryptography and cryptographic requirements for government or regulated environments
Experience with certificate discovery, inventory management, expiration monitoring, and proactive renewal processes
Strong understanding of TLS configuration, secure networking, trust stores, certificate validation, and PKI troubleshooting
Experience supporting AWS GovCloud, government, defense, or other regulated environments is preferred
Strong governance, risk management, documentation, troubleshooting, and cross-functional collaboration skills
Preferred certifications: AWS Certified Security – Specialty; Microsoft Certified: Cybersecurity Architect Expert (SC-100); Red Hat Certified Engineer (RHCE); Microsoft Certified: Windows Server Hybrid Administrator Associate; Entrust or DigiCert PKI certifications, where applicable

Benefits

Comp & perks

Competitive salary, paid twice per month
Best in class medical coverage
100% of medical premiums covered by True Zero
Company wide new business incentive programs
Contribution Incentives (i.e. white papers, blog posts, internal webinars, etc.)
3 weeks of PTO starting + 11 Paid Holidays Annually
401k Program with 100% company match on the first 4%
Monthly reimbursement of Cell Phone and Home Internet costs
Paternity/Maternity Leave
Investment in training and certifications to broaden and deepen your technical skills