IT Infrastructure Engineer

Responsibilities

• Maintain, optimize, and troubleshoot enterprise and field data communications, including cellular, satellite, radio telemetry, SIM management, and static IP assignments across distributed assets.
• Develop, implement, and enforce IT and OT cybersecurity standards, baseline policies, and operational procedures to safeguard critical infrastructure.
• Integrate cybersecurity architecture and security controls into operational capital projects and infrastructure expansions.
• Configure, manage, and routinely audit firewalls to maintain strict network segmentation between IT and OT environments (e.g., Purdue Model / IEC 62443).
• Conduct cybersecurity risk assessments and audits, implementing security controls aligned with industry standards (e.g., NIST SP 800-82, API 1164, ISA/IEC 62443).
• Support and secure industrial automation protocols (Modbus, DNP3, OPC, MQTT, and proprietary drivers) to ensure high availability and data integrity between field PLCs/RTUs, SCADA/DCS systems, and corporate enterprise applications.
• Continuously monitor enterprise and OT network traffic for performance degradation, protocol anomalies, potential security breaches, and unauthorized access attempts.
• Serve as primary contact for IT/OT cybersecurity incidents, performing rapid containment, root-cause analysis, and threat remediation.
• Lead efforts to evaluate and deploy emerging cybersecurity and networking technologies, ensuring alignment with regulatory and industry requirements.
• Works Monday–Friday schedule with extended hours and an on-call rotation (nights, weekends, and holidays) to support continuous 24/7 operations.
• Conduct onsite visits to field and office locations across Texas and Louisiana up to 15% travel.

Requirements

• Advanced proficiency in TCP/IP, DNS, DHCP, ARP, BGP, OSPF, and MPLS. Strong experience designing and deploying LAN, WAN, VLAN, and secure site-to-site VPN configurations.

Preferred

• Operational Technology (OT) & Compliance (3-5 years of experience)
• Demonstrated experience setting up and securing OT environments (DCS, ICS, PLCs, field automation).

Requirements

Network & Infrastructure (5+ years of experience)

Hardware & Security Stack

Hands-on experience with routers, switches, firewalls, IDS/IPS, NAC, and load balancers.

Wireless Technologies

• Knowledge of enterprise wireless networking, industrial radio/cellular communications, access point deployment, and wireless security protocols.
• Monitoring & Automation

Network Diagnostics

Expertise in network monitoring and packet analysis tools for real-time troubleshooting.

Automation & Scripting

Experience using Python, Bash, or infrastructure-as-code tools (Ansible, Puppet, Terraform) for network automation.

Regulatory & Industry Standards

• Working knowledge of pipeline and industrial control standards, including DOT, API, and ISA (e.g., ISA/IEC 62443).
• Certifications
• CompTIA Network+

Cisco Certified Network Associate (CCNA)

Certified Information Systems Security Professional (CISSP) or equivalent industrial cybersecurity credential (e.g., GICSP)

Benefits

: This position is located in Austin, Texas or Houston, TX and is an in-office position. Selected candidate is eligible for employer matched 401(k), medical, dental, vision, basic life and AD&D insurances and other benefit offerings.