IT/OT Network Engineer — Industrial Protocols

divcon; United States; On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical, Dental, and Vision Insurance

401K with Employer Match

Disability Coverage

Flexible PTO

Field-Based Benefits

Job summary

Divcon, based in Dallas, TX, is seeking a Network Engineer of Industrial Protocols to secure IT/OT convergence and protect SCADA, BMS, and mission-critical systems across client sites nationwide.

You will design and maintain secure network architectures, implement IEC 62443-aligned policies, perform vulnerability assessments, and lead incident response for industrial environments, while collaborating with controls engineers and field teams. Travel up to 75% may be required.

Qualifications

• Bachelor’s degree or equivalent experience in a technical field.
• 5+ years in network engineering with at least 3 years focused on cybersecurity in OT environments.
• Strong knowledge of industrial protocols: BACnet, Modbus, DNP3, OPC UA, MQTT, EtherNet/IP.

Responsibilities

• Design, implement, and maintain secure network architectures for converged IT/OT environments, including segmentation, firewalling, and zero-trust strategies.
• Configure and manage network infrastructure including switches, routers, firewalls, VPNs, and IDS/IPS.
• Develop and enforce cybersecurity policies aligned with IEC 62443, NIST CSF, and CIS Controls for industrial environments.
• Perform network vulnerability assessments, penetration testing, and risk analysis specific to ICS/SCADA networks.
• Monitor network traffic for anomalous behavior using SIEM tools and OT-specific threat detection platforms.
• Implement and maintain secure communication channels for industrial protocols (BACnet/IP, Modbus TCP, DNP3, OPC UA, MQTT, EtherNet/IP).
• Collaborate with controls engineers, facilities teams, and third-party integrators to ensure secure deployments.
• Lead incident response efforts for network security events, including forensic analysis and remediation.
• Document network topologies, security procedures, and SOPs for IT/OT infrastructure.
• Stay current on emerging cyber threats targeting industrial environments.

Skills

Cybersecurity in OT

Industrial protocols knowledge

TCP/IP & VLANs

Network monitoring

Travel readiness

Education

Bachelor’s degree in Computer Science, Network Engineering, Cybersecurity

Related technical field or equivalent experience

Tools

Palo Alto

Fortinet

Cisco ASA

IDS/IPS

NAC

SIEM

Job description

Divcon, based in Dallas, TX, is seeking a Network Engineer of Industrial Protocols to secure IT/OT convergence and protect SCADA, BMS, and mission-critical systems across client sites nationwide.

You will design and maintain secure network architectures, implement IEC 62443-aligned policies, perform vulnerability assessments, and lead incident response for industrial environments, while collaborating with controls engineers and field teams. Travel up to 75% may be required.