ADPKI West Engineer

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At Exxon Mobil, our vision is to lead in energy innovations that advance modern living and a net‑zero future. As one of the world’s largest publicly traded energy and chemical companies, we are powered by a unique and diverse workforce fueled by the pride in what we do and what we stand for.

The success of our Upstream, Product Solutions and Low Carbon Solutions businesses is the result of the talent, curiosity and drive of our people. They bring solutions every day to optimize our strategy in energy, chemicals, lubricants and lower‑emissions technologies.

We invite you to bring your ideas to Exxon Mobil to help create sustainable solutions that improve quality of life and meet society’s evolving needs. Learn more about our What and our Why and how we can work together.

Exxon Mobil's state‑of‑the‑art campus north of Houston serves as home to its Upstream, Product Solutions and Low Carbon Solutions businesses and their associated service groups. The facility opened in 2014 and accommodates more than 10,000 employees and visitors.

By bringing many global functional groups together, the campus provides employees with the tools and capabilities needed today, and in the future, to achieve business objectives and accelerate the discovery of new resources, technologies and products. It was designed to foster improved collaboration, creativity and innovation and enhance the company’s ability to attract, develop and retain the top talent in the industry.

The campus is located in Spring, Texas, on 385 wooded acres immediately to the west of Interstate Highway 45 (I‑45), at the intersection of I‑45 and the Hardy Toll Road, approximately 25 miles from the cultural vibrancy of downtown Houston.

The campus was constructed to the highest standards of energy efficiency and environmental stewardship. Its design incorporates extensive research into best practices in building and workplace design through extensive benchmarking of the world’s top academic, research, and corporate facilities.

Learn more about what we do in Houston here.

Provide operational support to the Active Directory / PKI Certificate services across Exxon Mobil domains. Build, deploy, maintain, troubleshoot AD services and related infrastructure.

This position is Houston based.

• Administer and maintain Active Directory (AD), including domain controllers, replication, and security hardening.
• Manage Active Directory Certificate Services (ADCS) and Public Key Infrastructure (PKI).
• Support Active Directory Federation Services (ADFS) and integration with identity providers.
• Implement and maintain Azure Information Protection (AIP) for data security.
• Utilize Quest tools (Change Auditor, RMAD, GPOAdmin) for auditing, recovery, and policy management.
• Configure and manage Hardware Security Modules (HSM) for cryptographic operations.
• Deploy and manage infrastructure in AWS using Terraform for automation and Infrastructure‑as‑Code.
• Ensure secure authentication using Kerberos, including SPNs and Keytabs.
• Design and enforce Group Policies for security and compliance.
• Develop automation scripts using Power Shell for operational efficiency.
• Collaborate with security teams to ensure compliance with organizational standards.
• Provide on‑call support for critical identity and security services as part of a rotation schedule.
• As a member of an agile team, participate in Agile ceremonies and collaborate with application developers, business customers, project managers, and other infrastructure teams.

Skills & Qualifications

• Minimum Bachelor's degree in technology‑related field or equivalent professional work experience.
• Strong experience with Active Directory, AD Certificate Services, and AD Federation Services.
• Proficiency in Kerberos authentication, SPNs, and Keytab management.
• Hands‑on experience with Group Policy Objects (GPO) and policy troubleshooting.
• Knowledge of HSM…