PKI / Certificate Management Engineer (R-00198)

True Zero Technologies LLC.; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Competitive salary

Best-in-class medical coverage

401k with company match

PTO 3 weeks + 11 holidays

Cell phone/home internet stipend

Training and certifications

Job summary

True Zero Technologies is seeking a PKI/Certificate Management Engineer to design, deploy, and maintain a secure, scalable PKI across enterprise and cloud environments. You will automate certificate issuance, manage lifecycles, and support DoD and Federal PKI integrations, CAC/PIV authentication, and zero-trust networking.

The role includes governance development for certificate policies, cryptographic standards, and integration with IAM and identity platforms, ensuring trusted communications

Qualifications

• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or a related discipline.
• Experience designing, implementing, or administering enterprise PKI.
• Knowledge of X.509 certificates, trust chains, cryptographic algorithms, key management, revocation, and lifecycle.

Responsibilities

• Design, implement, and maintain enterprise PKI across Windows, Linux, cloud, containers, and networks.
• Manage the full certificate lifecycle: request, issuance, validation, distribution, renewal, revocation, expiration, retirement.
• Implement and maintain ACME-based certificate automation and enrollment workflows.
• Manage certificates across Windows, Linux, cloud platforms, containers, applications, load balancers, and network devices.
• Design and operate integrations with AWS Private CA, AWS Certificate Manager, and related AWS services.
• Implement and administer HSM capabilities, including AWS CloudHSM.
• Support Federal PKI (FPKI) and DoD PKI trust relationships and interoperability.
• Integrate CAC/PIV authentication with enterprise applications, identity platforms, OS, and secure workflows.
• Implement and maintain mutual TLS for workload identity and Zero Trust communications.
• Ensure cryptographic implementations use FIPS-validated modules where required.
• Establish certificate discovery, inventory, monitoring, and alerting to prevent outages.
• Develop governance standards for certificate ownership, issuance, naming, key length, algorithms, renewal, revocation, retention.
• Integrate certificate management with IAM and authentication workflows.
• Support secure networking through TLS, mTLS, and encryption standards.
• Monitor PKI platform health, certificate status, and expiration events.
• Troubleshoot certificate-chain, trust-store, TLS, and enrollment issues.
• Collaborate with cybersecurity, identity, cloud, platform, and network teams.

Skills

PKI design

ACME automation

AWS Private CA

HSM (CloudHSM)

mTLS

DoD PKI

CAC/PIV

TLS configs

Governance

Education

Bachelor's degree in Cybersecurity, CS, IT

Tools

AWS Private CA

AWS CloudHSM

ACME tooling

Job description

True Zero Technologies, a veteran-owned small business, was founded on the principle that the purposeful enablement of people and technology in an organization directly ties to the quality of its outcomes. True Zero recognizes that those outcomes begin and end with our people, and that is what we have built a community of like-minded, driven, and passionate individuals and innovators who are aligned in a common goal of delivering top-tier services to our customers. Our culture and commitment have been recognized through numerous accolades, including being named one of "Best Places to Work" in 2023 in two categories (“Prosperous and Thriving” ($5MM–$50MM in gross revenue) and “Mid-Atlantic Region” (DC, DE, MD, NC, VA, WV)), and again in 2025 as a "Best Places to Work" honoree. In addition, True Zero earned coveted spots on the Inc. 5000 list of fastest-growing companies in America in 2022, 2023, and 2025 , a testament to our sustained growth driven by our people-first approach and unwavering dedication to excellence.

The PKI / Certificate Management Engineer designs, deploys, and maintains a secure, scalable Public Key Infrastructure supporting enterprise, cloud, government, and hybrid environments. The role is responsible for automating certificate issuance and renewal, managing certificate lifecycles across Windows, Linux, cloud platforms, containers, applications, and network devices, and establishing governance and monitoring processes that reduce the risk of certificate-related outages.

This position supports the Zero Trust architecture through certificate-based authentication, encryption, workload identity, and secure communications. The engineer will also support Federal PKI and DoD PKI integrations, CAC/PIV authentication, mutual TLS, FIPS-validated cryptography, hardware security modules, and cloud-native certificate services in AWS GovCloud.

Job Responsibilities

• Design, implement, and maintain enterprisePublic Key Infrastructure (PKI)supporting internal and external certificate requirements.
• Manage the fullcertificate lifecycle, including request, issuance, validation, distribution, renewal, revocation, expiration, and retirement.
• Implement and maintainACME-based certificate automationand other automated enrollment and renewal workflows.
• Manage certificates acrossWindows, Linux, cloud platforms, containers, applications, load balancers, network devices, and other enterprise systems.
• Design and operate integrations withAWS Private Certificate Authority (AWS Private CA), AWS Certificate Manager (ACM), and related AWS services.
• Implement and administerHardware Security Module (HSM)capabilities, including AWS CloudHSM, for secure protection of private keys and cryptographic operations.
• SupportFederal PKI (FPKI) and DoD PKItrust relationships, certificate chains, and interoperability requirements.
• IntegrateCAC/PIV authenticationwith enterprise applications, identity platforms, operating systems, and secure access workflows.
• Implement and maintainmutual TLS (mTLS)for workload identity, service-to-service authentication, and Zero Trust communications.
• Ensure cryptographic implementations useFIPS-validated cryptographic modules and approved algorithmswhere required.
• Establish certificate discovery, inventory, monitoring, and alerting capabilities to identify unmanaged certificates and prevent expiration-related outages.
• Develop governance standards for certificate ownership, issuance, naming, key length, cryptographic algorithms, renewal periods, revocation, and retention.
• Integrate certificate management withIdentity and Access Management (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 complex 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.

Job Qualifications

• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, Information Systems, or a related technical discipline.
• Demonstrated experience designing, implementing, or administering enterprisePublic Key Infrastructure (PKI).
• Strong knowledge ofX.509 certificates, certificate authorities, trust chains, cryptographic algorithms, key management, revocation, and certificate lifecycle management.
• Experience implementing automated certificate issuance and renewal usingACME or comparable certificate automation technologies.
• Experience managing certificates acrossWindows, Linux, cloud, containerized, network, and application environments.
• Hands-on experience withAWS Private CA, AWS Certificate Manager, AWS CloudHSM, or comparable cloud PKI and HSM technologies.
• Strong understanding ofcryptography, encryption, digital signatures, hashing, key exchange, and secure communications.
• Experience integrating PKI withIAM, directory services, applications, network infrastructure, and cloud services.
• Familiarity withFederal PKI, DoD PKI, CAC/PIV authentication, and government certificate trust models.
• Experience implementingmTLS and certificate-based workload identityin Zero Trust architectures.
• Familiarity withFIPS-validated cryptographyand 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

We’re actively searching for talented security and technology practitioners who are ready to experience the True Zero difference. As a True Zero team member, you’ll enjoy:

• 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