Tier 0 Identity & PKI Engineer (AD, ADFS, ADCS)

STI; Spring (TX); On-site; USD 100,000 - 130,000; Full time

Job summary

STI is seeking candidates for a role that requires extensive knowledge of Active Directory, PKI, and automation tools such as PowerShell and Terraform. The position demands 5+ years of experience in security-focused environments, and candidates will work on critical Tier 0 systems. Strong operational judgment and the ability to work in automated environments are essential.

Applicants must demonstrate proficiency in infrastructure as code and possess the ability to navigate compliance and audit requirements. This is not a learning role; deep expertise is expected.

Qualifications

• 5+ years of experience with Active Directory at an enterprise scale.
• 3–5+ years of PowerShell experience and 2–3+ years of Terraform experience.
• Experience in high-security regulated enterprise environments.

Responsibilities

• Build and maintain automation scripts for operational efficiency.
• Manage pipelines and deploy infrastructure via code.
• Operate under strict security controls.

Skills

Active Directory

AD Certificate Services (ADCS)

Public Key Infrastructure (PKI)

Active Directory Federation Services (ADFS)

PowerShell Automation

Infrastructure as Code (Terraform)

Tier 0 Security Experience

Job description

STI is seeking candidates for a role that requires extensive knowledge of Active Directory, PKI, and automation tools such as PowerShell and Terraform. The position demands 5+ years of experience in security-focused environments, and candidates will work on critical Tier 0 systems. Strong operational judgment and the ability to work in automated environments are essential.

Applicants must demonstrate proficiency in infrastructure as code and possess the ability to navigate compliance and audit requirements. This is not a learning role; deep expertise is expected.