OT Engineer

AVeS Cyber Security; Johannesburg; On-site; ZAR 600,000 - 900,000; Full time

Job summary

AVeS Cyber Security in Johannesburg is seeking an OT-focused Network Engineer to design, deploy and manage secure network solutions for industrial environments, with emphasis on switching, VLANs and safe OT/IT segmentation.

Requirements include 3–5 years in network engineering, 1–2 years OT experience, a Bachelor’s degree in CS/IT, and certifications such as CCNA, CCNP or GICSP. Strong analytical, communication, and teamwork skills are essential.

Qualifications

• Bachelor's degree in Computer Science, IT, or related field.
• 3–5 years of network engineering experience, 1–2 years in OT environments.
• Relevant certifications such as CCNA, CCNP, or GICSP are highly desirable.

Responsibilities

• Design, deploy and manage secure OT network solutions, focusing on switching and VLANs.
• Ensure OT/IT segmentation to enhance security and performance.
• Troubleshoot Layer 2/3 issues in industrial environments.
• Implement VLAN architectures to support traffic segregation and scalability.
• Collaborate with OT engineers and cybersecurity specialists to align with standards like IEC 62443.

Skills

Layer 2/3 networking

OT cybersecurity

Analytical thinking

Effective communication

Education

Bachelor's degree in Computer Science or Information Technology

Equivalent experience

Tools

CCNA

CCNP

GICSP

Job description

Johannesburg, South Africa

• Design, deploy, and manage secure network solutions tailored for OT environments, focusing on switching and VLANs.
• Ensure the segmentation and isolation of OT and IT networks to enhance security and performance.
• Troubleshoot and resolve complex network issues in industrial environments, including Layer 2 and Layer 3 configurations.
• Implement and manage VLAN architectures to support traffic segregation, scalability, and compliance.
• Conduct network vulnerability assessments and apply mitigation strategies to ensure cybersecurity in OT systems.
• Collaborate with OT engineers, IT teams, and cybersecurity specialists to ensure network designs meet operational and security requirements.
• Develop and maintain detailed documentation for network configurations, security protocols, and troubleshooting procedures.
• Monitor network performance and security, responding proactively to potential risks or incidents.
• Stay updated on OT-specific cybersecurity standards (e.g., IEC 62443, NIST 800-82) and apply best practices.

Requirements

Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent experience).
• Relevant certifications such as CCNA, CCNP, GICSP (Global Industrial Cyber Security Professional), or similar are highly desirable.

Experience

• 3-5 years of experience in network engineering, with at least 1-2 years in OT environments.
• Proven expertise in switching technologies, VLAN configurations, and OT-specific network design.
• Hands-on experience with industrial protocols (e.g., Modbus, PROFINET, DNP3) is an advantage.

Technical Skills

• Strong knowledge of Layer 2 and Layer 3 networking.
• Familiarity with OT cybersecurity frameworks like IEC 62443, NERC CIP, or NIST 800-82.
• Experience configuring and securing enterprise-grade network devices (e.g., Cisco, Juniper, or equivalent).
• Understanding of firewalls, IDS/IPS, and other cybersecurity tools used in OT networks.
• Proficiency in routing protocols (e.g., OSPF, EIGRP, BGP) is a plus.
• Knowledge of network monitoring and security tools, such as Wireshark, SolarWinds, or Splunk.

Soft Skills

• Strong analytical and problem-solving skills.
• Effective communication and collaboration with diverse teams, including non-technical stakeholders.
• Ability to work independently in high-pressure industrial environments.
• Proactive mindset with a commitment to continuous learning in the OT cybersecurity space.