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Rosstone Professional Solutions

11 months ago

IT/OT Architect

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Company information

Company
Rosstone Professional Solutions
Location
South Africa, Gauteng, Johannesburg South Africa
Posted
11 months ago
View all jobs at Rosstone Professional Solutions

Job description

The IT/OT Architect is responsible for designing and maintaining the integrated architecture that bridges Information Technology (IT) and Operational Technology (OT) environments. This role ensures secure, reliable, and efficient connectivity between enterprise systems and industrial/operational systems, enabling digital transformation, improved operational efficiency, and compliance with security standards.

Qualifications & Experience:

Education:

  • Bachelor's or Master's degree in computer science, Engineering, Information Systems, or a related field.

Experience:

  • 8+ years in IT or OT roles, at least 3–5 years in architecture/systems integration.
  • Strong experience in industrial/operational environments (manufacturing, utilities, etc)
  • Experience with industrial automation systems (SCADA, PLC, DCS) and enterprise systems (ERP, MES)

Technical Skills:

  • Knowledge of industrial protocols (OPC UA, Modbus, MQTT).
  • Familiarity with cybersecurity frameworks for OT (IEC 62443, NIST CSF).
  • Experience with networking, firewalls, DMZs, and segmented architectures
  • Proficiency in enterprise architecture methodologies (TOGAF, Zachman) is a plus.

Key Competencies:

  • Strong analytical and problem-solving skills.
  • Excellent communication and stakeholder management abilities.
  • Ability to work across IT and OT domains, translating business requirements into technical solutions.
  • Strategic thinking with a focus on security and risk management.

Required skills

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