Senior PKI Architect & Automation Specialist (Onsite)

Realign Llc; Denver (CO); On-site; USD 125,000 - 155,000; Full time

Job summary

Realign Llc in Denver, CO is seeking a senior PKI/Certificate Management professional to own end-to-end certificate lifecycle across on-prem and cloud platforms.

You will manage PKI infrastructures (Microsoft CA, Venafi, DigiCert, Entrust, Sectigo), handle EKMs and HSMs, implement automation with PowerShell/Python, and collaborate with Security, Infrastructure, and DevOps teams to maintain compliance and secure applications and APIs.

Qualifications

• 5+ years of experience in Certificate Management and PKI administration.
• Strong understanding of PKI architecture, SSL/TLS protocols, X.509 certificates, CSR and CA.
• Hands-on experience with Venafi, DigiCert, Entrust, Sectigo, or Microsoft PKI.
• Azure Key Vault and AWS KMS or equivalent EKM solutions.
• HSM technologies (Thales Luna HSM) experience.
• Experience with certificate lifecycle automation and scripting.
• Knowledge of cryptographic algorithms such as RSA, ECC, AES, SHA-256.
• Scripting in PowerShell, Python, or Bash.
• Manage end-to-end SSL/TLS lifecycle including issuance, renewal, revocation, and automation.

Responsibilities

• Manage end-to-end SSL/TLS certificate lifecycle including issuance, renewal, revocation, and automation.
• Administer PKI platforms such as Microsoft CA, DigiCert, Venafi, Entrust, or Sectigo.
• Manage EKMs, encryption keys, and HSMs, including key rotation.
• Implement certificate discovery, monitoring, and expiration alerting.
• Support cloud-based key management services (Azure Key Vault, AWS KMS, Google Cloud KMS).
• Ensure compliance with security standards and regulatory requirements.
• Troubleshoot certificate-related issues affecting apps, servers, APIs, and network devices.
• Automate certificate and key management processes using PowerShell, Python, or REST APIs.
• Collaborate with Security, Infra, Applications, and DevOps teams.

Skills

PKI architecture

SSL/TLS protocols

X.509 certificates

CSR

Certificate Authorities

Cryptographic algorithms

PowerShell

Python

Bash

Certificate lifecycle management

REST APIs

Tools

Venafi

DigiCert

Entrust

Sectigo

Microsoft PKI

Azure Key Vault

AWS KMS

Thales Luna HSM

Job description

Realign Llc in Denver, CO is seeking a senior PKI/Certificate Management professional to own end-to-end certificate lifecycle across on-prem and cloud platforms.

You will manage PKI infrastructures (Microsoft CA, Venafi, DigiCert, Entrust, Sectigo), handle EKMs and HSMs, implement automation with PowerShell/Python, and collaborate with Security, Infrastructure, and DevOps teams to maintain compliance and secure applications and APIs.