Technical Enterprise Architect

Optimal Growth Technologies; Johannesburg; On-site; ZAR 1,200,000 - 1,800,000; Full time

Job summary

Optimal Growth Technologies is seeking an experienced Enterprise Architect in Midrand to provide end-to-end architectural governance, ensuring business processes, OT, applications, integrations, infrastructure, security and support align as a coherent solution.

You will lead design reviews, own cross-domain decisions, maintain an auditable architecture register, and guide teams across OT/IT, Kafka, SAP and integration platforms to production readiness and disaster recovery.

Qualifications

• Senior Enterprise/ Solution Architecture experience leading large, multi-vendor and multi-technology tower programmes through design, implementation, commissioning and operational transition.
• Authority in architecture governance - chairing design reviews, handling exceptions, documenting trade-offs and influencing decisions across organizational boundaries.
• Strong working knowledge of enterprise integration, OT/IT convergence, cyber security, infrastructure, resilience and disaster recovery.
• Ability to produce clear, decision-ready architecture artefacts and communicate risks to engineers, delivery leaders and senior stakeholders.
• TOGAF 9 or higher certified.

Responsibilities

• Lead design reviews; establish design principles, standards and acceptance criteria.
• Act as the single architecture point of accountability for cross-domain decisions.
• Maintain an auditable architecture decision register with rationale, impacts, conditions, approvers and follow-up actions.
• Track technical debt, assumptions, exceptions and architecture risks to closure.
• Ensure solution designs and supplier deliverables remain aligned with the approved architecture.
• Review designs for new sites, components, interfaces and change requests before implementation or formal approval.
• Assess proposed changes for their effect on performance, security, availability, data integrity, supportability and disaster recovery.
• Provide oversight and ownership of solution artefacts
• Provide architectural oversight of the interfaces between OT devices, Applications, Kafka, SAP and integration platforms.
• Define architecture requirements for production readiness, monitoring, service continuity, disaster recovery and the transition into operational support.
• Guide technical teams in resolving issues that cross system or supplier boundaries.
• Assess non-functional requirements and architectural evidence for Cybersecurity, Identity, Network segmentation, Availability, capacity, observability, data integrity, backup, disaster recovery and IT service continuity.

Skills

Architecture governance

TOGAF 9+

Enterprise integration

Cybersecurity

Stakeholder communication

Networking & security

Education

Bachelor's degree in Computer Science or Electrical Engineering

Tools

Kafka

SAP

Integration platforms

CCIE level certification

Job description

Enterprise Architect

Location: Midrand

Duration: 12 months

Role purpose

Provide end-to-end architectural governance. The role ensures that business processes, operational technology, applications, integrations, infrastructure, security and support arrangements work together as a coherent solution and meet governance requirements.

Key roles and responsibilities

• Lead design reviews; establish design principles, standards and acceptance criteria.
• Act as the single architecture point of accountability for cross-domain decisions.
• Maintain an auditable architecture decision register with rationale, impacts, conditions, approvers and follow-up actions.
• Track technical debt, assumptions, exceptions and architecture risks to closure.
• Ensure solution designs and supplier deliverables remain aligned with the approved architecture.
• Review designs for new sites, components, interfaces and change requests before implementation or formal approval.

• Assess proposed changes for their effect on performance, security, availability, data integrity, supportability and disaster recovery.
• Provide oversight and ownership of solution artefacts
• Provide architectural oversight of the interfaces between OT devices, Applications, Kafka, SAP and integration platforms.
• Define architecture requirements for production readiness, monitoring, service continuity, disaster recovery and the transition into operational support.
• Guide technical teams in resolving issues that cross system or supplier boundaries.
• Assess non-functional requirements and architectural evidence for Cybersecurity, Identity, Network segmentation, Availability, capacity, observability, data integrity, backup, disaster recovery and IT service continuity.

Required experience and capabilities

• Senior Enterprise or Solution Architecture experience leading large, multi-vendor and multi technology tower programmes through design, implementation, commissioning and operational transition.
• Demonstrated authority in architecture governance - chairing design reviews, handling exceptions, documenting trade-offs and influencing decisions across organizational boundaries.
• Strong working knowledge of enterprise integration, OT/IT convergence, cyber security, infrastructure, resilience and disaster recovery.
• Ability to produce clear, decision-ready architecture artefacts and communicate risks to engineers, delivery leaders and senior stakeholders.
• TOGAF 9 or higher certified

• Senior hands-on experience in infrastructure, security, Service Provider, Enterprise Integration, application platforms or technical solution delivery.
• Ability to give engineers technical direction, maintain reliable evidence and documentation, and escalte decisions outside technical execution authority.
• Strong troubleshooting skills across networking, Security, APIs, messaging platforms, networks, proxies
• Ability to work across application, infrastructure, network and operational technology teams.
• Clear technical documentation and communication skills.
• CCIE level expertise or equivalent experience

Education : Computer Science , Electrical Engineering and/or equivalent

Years of experience : 5-8+ years of relevant experience