Senior AD & PKI Engineer - Automation & Tier 0 Security

STI; Spring (TX); On-site; USD 110,000 - 170,000; Full time

Job summary

ExxonMobil seeks an experienced identity and security engineer to manage enterprise Active Directory at scale and automate with PowerShell and Terraform. The role focuses on ADCS, PKI, and ADFS to support Tier 0 access in large production environments.

Candidates must demonstrate deep operational judgment, strong security controls, and the ability to pass enhanced background checks in a modernizing identity program.

Qualifications

• 5+ years in enterprise-grade Active Directory environments.
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• Deep expertise in ADCS, PKI, and ADFS for Tier 0 access.
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• Strong PowerShell automation and Terraform IaC experience.
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• Operates with mature judgment in production environments and audits.
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• Ability to pass an enhanced background check.

Responsibilities

• Automate identity infrastructure and admin tasks using PowerShell.
• Deploy infrastructure via code with Terraform.
• Operate under strict security controls, audits, and privileged access models.
• Maintain Tier 0 / Enterprise Administrator access securely.

Skills

Active Directory

ADCS

PKI

ADFS

PowerShell scripting

Terraform

Automation

Security awareness

Tools

Terraform

Job description

ExxonMobil seeks an experienced identity and security engineer to manage enterprise Active Directory at scale and automate with PowerShell and Terraform. The role focuses on ADCS, PKI, and ADFS to support Tier 0 access in large production environments.

Candidates must demonstrate deep operational judgment, strong security controls, and the ability to pass enhanced background checks in a modernizing identity program.