Data scientist - support top-tier entrepreneurs

RayAI Inc.
📍 Eastern Cape, Eastern Cape, South-Africa 💼 Full-time 🕒 Posted February 26, 2026

Job Description

A Message from Our CEO:
We are seeking a highly skilled Data Scientist with deep expertise in modern AI/ML systems, including LLMs, multimodal models, fine-tuning techniques, and advanced retrieval architectures. In this role, you will design, prototype, and deploy AI-powered solutions that leverage state-of-the-art language, vision, and agentic frameworks. You will work closely with engineering, product, and research teams across the US and Europe to bring cutting-edge AI capabilities into production environments.
Your Responsibilities: Design, build, and optimize LLM-powered systems using Open AI, Anthropic, and open-source/local model families.
Architect and implement RAG pipelines, including hybrid search, query rewriting, prompt optimization, and reranking strategies.
Develop and maintain vector database infrastructures (Pinecone, Weaviate, Qdrant) for large-scale embedding storage and fast retrieval.
Train, evaluate, and retrain embedding models for dom...

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Job Details

  • Location Eastern Cape, Eastern Cape
  • Job Type Full-time
  • Category Other-General
  • Posted Date February 26, 2026
  • Application Deadline April 07, 2026