OT Systems Engineer

Qualifications and Experience
Education
- Degree/Diploma in Electrical Engineering, Instrumentation, Industrial IT, or a related field.
Experience
- 37 years experience in OT systems engineering or industrial automation.
- Proven experience in industrial network design, configuration, and maintenance.
- Exposure to OT cybersecurity, firewall management, and system hardening.
Technical Skills
- Knowledge of industrial communication protocols: EtherNet/IP, PROFINET, Modbus TCP, OPC, MQTT.
- Experience with Cisco, Fortinet, or Palo Alto industrial firewalls.
- Working knowledge of SCADA, PLC, and DCS systems.
- Experience with Windows Server, AD, VMware/Hyper-V an advantage.
Key Competencies
- Strong analytical and troubleshooting capability.
- Deep understanding of both IT and OT environments.
- Ability to work independently and under pressure in production settings.
- Excellent communication, documentation, and teamwork skills.
- High commitment to safety, reliability, and cybersecurity best practices.

Key Responsibilities
OT Network Management
- Design, configure, and maintain industrial OT networks and infrastructure.
- Manage network devices including switches, routers, firewalls, and segmented OT networks.
OT Cybersecurity
- Implement and maintain OT cybersecurity standards aligned with corporate IT policies.
- Manage and monitor OT firewalls, ACLs, security zones, and intrusion controls.
- Conduct vulnerability assessments and ensure system hardening.
System Integration
- Integrate OT systems with SCADA, PLC, and DCS environments for seamless data flow.
- Support communication protocols such as Modbus, OPC, PROFINET, EtherNet/IP, and MQTT.
- Collaborate with automation and control teams to optimize data exchange between plant floor and enterprise systems.
Standards and Documentation
- Develop, maintain, and enforce OT standards and architecture guidelines.
- Maintain accurate documentation for OT assets, network configurations, and change control.
Hardware and Network Support
- Specify, configure, and support industrial hardware: switches, gateways, servers, firewalls.
- Troubleshoot complex network and hardware issues in production environments.
Automation Support
- Assist with communication setup and monitoring for PLC, SCADA, and DCS systems.
- Support automation projects involving OT networking and data integration.
Plant Support
- Provide standby support for OT systems during plant operations.
- Participate in RCA processes and drive continuous improvement for plant reliability.