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

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.

Key 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.

Required Experience:

- 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.

Technical Skills:

- 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

Preferred Attributes:

- 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

Work Environment:

- Primarily office-based with occasional remote work flexibility

- Some travel between company sites may be required

- Physical activities include lifting and installing AV and infrastructure equipment

- Participation in on-call rotation for emergency support

Recruitment Fraud

It has come to our attention various individuals and/or organizations are contacting people falsely pretending to recruit on behalf of Oxy. Please be aware that these recruiting scams and communications do not originate nor are they associated with our recruitment process. All Oxy job postings and offers will require a completed application through our company website.

Oxy does not charge a fee at any stage of the recruiting process. We will never:

• Ask you to pay for applications, interviews, meetings, processing, training or for any other fees

• Use recruiting or placement agencies that charge candidates an advance fee of any kind or

• Request personal information such as passport and bank account details at an early stage of our recruitment process.

We recommend against responding to unsolicited business propositions or offers from people you don't know. Do not disclose your personal or financial details. If you believe you have been the victim of a recruiting scam, please contact your local police department.

All qualified applicants will receive consideration for employment without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law.