Security Engineer – AIDR

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Job Summary

To provide specialist advice & support in the development & implementation of IT security service delivery processes, methods and techniques enabling secure management & control of IT access, in alignment with governance requirements.

Job Description

The Security Engineer – with a focus in AI Security and AI Detection & Response (AIDR) is responsible for securing Absa's enterprise Artificial Intelligence (AI), Machine Learning (ML), Large Language Model (LLM), Agentic AI, Retrieval Augmented Generation (RAG), AI Gateway, and Model Context Protocol (MCP) environments.

The role combines Security Engineering practices, Security Architecture, Detection Engineering, Threat Hunting, Offensive Security, and Incident Response to protect AI systems from emerging cyber threats while enabling secure innovation across the organisation. It aims to enhance the banks capabilities in AI security controls, AI threat detection, AI red teaming, and AI platform security across cloud, hybrid, and on-premises environments.

Key Accountabilities

AI Security Architecture

• Design secure AI and ML architectures.
• Define AI security standards and reference architectures.
• Perform AI threat modeling exercises.
• Conduct security reviews of AI applications and platforms.
• Establish AI security controls across the AI lifecycle.
• Secure agentic AI systems and autonomous workflows.
• Assess security risks associated with AI adoption initiatives.

AI Detection & Response (AIDR)

• Develop AI-specific threat detection use cases.
• Create monitoring strategies for AI environments.
• Engineer detections within SIEM, XDR, and EDR platforms.
• Investigate AI-related security incidents.
• Develop AI incident response playbooks.
• Perform AI-focused threat hunting activities.
• Establish AI attack simulation and validation programs.

AI Infrastructure Security

Secure enterprise AI ecosystems including:

• Large Language Models (LLMs)
• Agentic AI Platforms
• AI Gateways
• AI Proxies
• MCP Servers
• MCP Clients
• AI Agents
• Vector Databases
• RAG Architectures
• Model Serving Platforms

Model Context Protocol (MCP) Security

Develop and implement security controls for MCP ecosystems.

Responsibilities include:

• MCP architecture security reviews
• Security assessment of MCP servers and connectors
• Validation of trust boundaries between agents and tools
• Security testing of MCP integrations
• Monitoring MCP activity and tool execution
• Designing secure MCP deployment patterns
• Developing MCP hardening standards

AI Gateway Security

Implement and manage security controls for enterprise AI gateways.

Responsibilities include:

• AI traffic inspection
• Prompt inspection and filtering
• Content moderation
• Data Loss Prevention (DLP)
• Access governance
• Rate limiting
• API protection
• Model routing controls.

 

Offensive AI Security & Red Teaming

Conduct offensive security assessments against AI environments.

Prompt Security Testing

• Prompt Injection
• Indirect Prompt Injection
• Context Manipulation
• Jailbreak Testing
• Prompt Leakage
• Instruction Override Testing

Agent Security Testing

• Tool Abuse
• Tool Chaining Attacks
• Agent Manipulation
• Agent Privilege Escalation
• Memory Poisoning
• Autonomous Agent Abuse

RAG Security Testing

• Knowledge Base Poisoning
• Retrieval Poisoning
• Data Exfiltration
• Vector Database Attacks
• Unauthorized Data Access   

Model Security Testing

• Model Extraction
• Model Inversion
• Membership Inference
• Adversarial Input Testing
• Model Evasion
• Model Poisoning

 

Education Requirement

Bachelor Degree in Engineering (Electrical/Electronic, Mechanical, Computer), Computer Science, Mathematics and Physics

Education

Bachelor`s Degrees and Advanced Diplomas: Physical, Mathematical, Computer and Life Sciences (Required)

Absa Bank Limited is an equal opportunity, affirmative action employer. In compliance with the Employment Equity Act 55 of 1998, preference will be given to suitable candidates from designated groups whose appointments will contribute towards achievement of equitable demographic representation of our workforce profile and add to the diversity of the Bank.

Absa Bank Limited reserves the right not to make an appointment to the post as advertised