IT Security & Infrastructure Specialist (Dallas or Houston, TX)

Occidental Petroleum • Dallas, TX

4d • Hybrid

About The Position

Contribute. Grow. Lead...with OxyChem. Looking for a challenge? Desire to achieve your true potential? OxyChem is a growing, action-oriented, safety driven chemical manufacturing company continually striving to be the best in the business while staying focused on environmental protection. The secret to our success has and will continue to be our people. Occidental Chemical Corporation (OxyChem) is a leading North American manufacturer of polyvinyl chloride (PVC) resins, chlorine and caustic soda – key building blocks for a variety of indispensable products such as plastics, pharmaceuticals and water treatment chemicals. Other OxyChem products include caustic potash, chlorinated organics, sodium silicates, chlorinated isocyanurates and calcium chloride. OxyChem's market position is among the top three producers in the United States for the principal products it manufactures and markets. Based in Dallas, Texas, the company has manufacturing facilities in the U.S., Canada and Latin America. In a fast-paced industry that demands precision, we create a supportive workplace where the safety and well-being of our employees are paramount. We are committed to rewarding top performers, offering very competitive pay and benefits, and providing tremendous career development opportunities. The IT Security and Infrastructure Specialist is responsible for the design, maintenance, and ongoing improvement of organizational IT security and infrastructure. This role demands extensive hands-on experience in network security—including firewalls and zero trust architectures—security operations using industry-leading tools, Azure Cloud security, Windows Server administration, infrastructure physical layer management, and the implementation and support of audio/visual systems. The ideal candidate will ensure robust protection, operational integrity, and optimal performance across all platforms and technologies.

Requirements

• Bachelor’s degree in computer science, Information Technology, or related field (or equivalent experience)
• Relevant certifications such as CISSP, CISM, Azure Security Engineer Associate, MCSE, or similar
• Minimum 5 years of professional experience in network security, including hands-on firewall management and zero trust implementations.
• At least 3 years of direct experience with security operations platforms such as Qradar and SentinelOne.
• Minimum 3 years in Azure Cloud security administration.
• At least 5 years of Windows Server maintenance, including DFS and printer management.
• Experience in managing physical infrastructure layers, including hyperconverged systems, cabling, and hardware installation.
• Demonstrated history of audio/visual system deployment and support in a business environment.
• Firewall platforms (e.g., Palo Alto, Fortinet, Cisco ASA)
• Zero Trust security frameworks
• SIEM solutions (Qradar, SentinelOne)
• Azure Active Directory and Azure Security Center
• Windows Server (2016/2019/2022), Distributed File System (DFS), printer management
• Hyperconverged infrastructure platforms (e.g., Nutanix, VMware vSAN)
• Audio/Visual technologies (Crestron, Extron, Zoom Rooms, Teams Rooms)
• Network cabling and physical infrastructure best practices

Nice To Haves

• Strong analytical and problem-solving abilities
• Excellent written and verbal communication skills
• Ability to work independently and collaboratively in fast-paced environments
• Demonstrated commitment to continuous learning and professional development
• Experience supporting hybrid and remote work environments

Responsibilities

• Network Security: Design, implement, and monitor secure network architectures; configure and manage firewalls; enforce zero trust security principles; conduct vulnerability assessments and remediation.
• Security Operations: Operate and optimize SIEM and endpoint security platforms such as Qradar and SentinelOne; perform incident detection, analysis, and response; develop and maintain security operations procedures.
• Azure Cloud Security: Manage Azure security controls, monitor cloud-based resources, enforce compliance policies, and safeguard cloud workloads against threats.
• Windows Server Maintenance: Administer Windows Server environments, including Distributed File Systems (DFS) and network printers; perform routine patching, updates, and troubleshooting; ensure high availability and data integrity.
• Infrastructure Physical Layer: Oversee the installation, configuration, and support of hyperconverged systems; maintain cabling, racks, and other physical infrastructure components; ensure reliable connectivity and hardware performance.
• Audio/Visual Implementation and Support: Deploy, configure, and support audio/visual equipment for meeting spaces, presentations, and events; troubleshoot AV systems and provide user training as needed.
• Documentation and Reporting: Maintain comprehensive records of configurations, incidents, and maintenance activities; produce regular reports for management and compliance.
• Collaboration: Work closely with IT application support teams, cyber security, and facilities teams to ensure cohesive operations and rapid issue resolution.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees