Production AI Engineer: LLM Systems & Safety

Zohorecruit; Sandton; Hybrid; ZAR 900,000 - 1,200,000; Full time

Benefits offered by this job

Hybrid working

21 days annual leave

BCEA leave entitlements

Job summary

Centrax Digital is an AI-first consulting and digital engineering firm operating from Bryanston, Sandton and Grand Prairie, Texas. We design, build and operate production AI systems for clients, balancing safety and performance across the delivery lifecycle.

The role involves bridging experimentation, engineering and operations, delivering measurable AI outcomes with LLMs, vectors and RAG-based pipelines in a hybrid, client-facing environment.

Responsibilities

• Design and build production-grade AI applications using LLM frameworks, vector databases and the CAIF reference architecture.
• Implement retrieval-augmented generation pipelines: chunking, embedding, indexing, retrieval, ranking, generation and citation.
• Build and maintain evaluation frameworks: golden datasets, regression suites, online evaluation and human review.
• Engineer for safety: prompt injection defence, output filtering, sensitive data redaction and escalation paths.
• Deploy and operate AI workloads in production, including monitoring, drift detection and incident response.
• Triage and improve underperforming AI capabilities through prompt, retrieval and model tuning.
• Contribute reusable components, prompts and evaluation kits to the AI Practice Library.
• Support client thought leadership and pre-sales on AI engagements.

Job description

Centrax Digital is an AI-first consulting and digital engineering firm operating from Bryanston, Sandton and Grand Prairie, Texas. We design, build and operate production AI systems for clients, balancing safety and performance across the delivery lifecycle.

The role involves bridging experimentation, engineering and operations, delivering measurable AI outcomes with LLMs, vectors and RAG-based pipelines in a hybrid, client-facing environment.