Realm Digital

AI Engineer, Node.js

Realm Digital

full-time

Posted on:

Origin:  • 🇿🇦 South Africa

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Job Level

Mid-LevelSenior

Tech Stack

JavaScriptNode.js

About the role

  • Build AI-first features and internal tools using APIs from OpenAI
  • Use LLMs and retrieval-augmented generation (RAG) as core building blocks of backend architecture
  • Build with and around Nodejs to enable real-time orchestration of AI features
  • Prototype and productionise new generative experiences, e.g., automated moderation, personalised user flows, campaign concept tools
  • Work closely with the design, product, and sales enablement teams to deliver AI-native products that scale across global markets
  • Stay up to date with the AI ecosystem (open models, CDNs for inference, emerging libraries) and actively test/integrate where impactful
  • Develop safe and effective prompt engineering systems, structured outputs, and feedback loops to optimise model behaviour
  • Lead the integration of artificial intelligence into products as the core method of development and innovation

Requirements

  • A portfolio or examples of work where AI was core to the product or workflow
  • Hands-on experience integrating AI APIs (OpenAI, Gemini, Claude, etc.) into working systems
  • Strong foundation in JavaScript & Nodejs, with a focus on scalable, event-driven APIs
  • Comfort with AI concepts: embeddings, prompt engineering, function calling, fine-tuning
  • Motivation to help define their internal AI engineering culture
  • Nice to have: Building interactive, AI-driven frontend experiences
  • Nice to have: Experience with vector databases, LLM agents, or RAG-based systems
  • Nice to have: Working knowledge of data protection frameworks (POPIA, GDPR) in AI contexts