Data Scientist Support Top-Tier Entrepreneurs

RAY AI

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profile Job Location:

Cape Town - South Africa

profile Monthly Salary: Not Disclosed
Posted on: 16 hours ago
Vacancies: 1 Vacancy

Job Summary

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 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 OpenAI 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 domain-specific semantic search and knowledge retrieval.
      • Build and integrate multimodal AI solutions using OCR CLIP and modern vision architectures for text-image understanding.
      • Apply fine-tuning techniques (LoRA/QLoRA) to adapt foundation models to organizational datasets and specialized tasks.
      • Develop production-ready AI applications using Python PyTorch and modern orchestration frameworks.
      • Implement LLM orchestration with LangChain or LlamaIndex including evaluators tool abstractions memory and RAG components.
      • Establish robust evaluation frameworks to measure model performance reduce hallucination and ensure reliability in production.
      • Build agentic workflows using AutoGen CrewAI or similar frameworks to power automation and multi-agent collaboration systems.
      • Stay current with research trends and apply theoretical and practical insights in Generative AI to drive innovation across the organization.

What we look for:

    • Experience in applied machine learning or data science with at least 2 years focused specifically on LLMs or Generative AI.
      • Demonstrated experience building end-to-end RAG fine-tuning or multimodal AI systems.
      • Strong proficiency in Python PyTorch and AI tooling ecosystems.
      • Experience deploying models at scale in production environments.
      • Strong understanding of evaluation metrics model reliability and safety/reduction of hallucination.
      • Familiarity with vector embeddings vector databases and semantic search.
      • Experience with agent frameworks such as AutoGen CrewAI or LangGraph-like toolkits.
      • Experience with distributed training model optimization quantization or GPU acceleration.
      • Knowledge of DevOps/MLOps tooling for deploying LLM-based systems.
      • Contributions to open-source LLM or RAG projects.

What we offer:

  • Competitive salary and performance-based bonuses.
  • Fully remote flexible work environment.
  • Modern laptop and hardware provided by us.
  • Specialized training in AI automation and digital productivity tools.
  • Global exposurecollaborate with top-tier founders and fast-growing startups.
  • Continuous learning and career growth opportunities in an international environment.
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 this role you will design prototype and deploy AI-powered solutions that leverage state-of-the-art languag...
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Key Skills

  • Laboratory Experience
  • Immunoassays
  • Machine Learning
  • Biochemistry
  • Assays
  • Research Experience
  • Spectroscopy
  • Research & Development
  • cGMP
  • Cell Culture
  • Molecular Biology
  • Data Analysis Skills

About Company

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RAY is on a mission to enable builders & innovators to focus on work only they can do and simultaneously create exciting high-paying jobs in the global south. We envision a world in which busy work is a relic of the past. In which our brightest minds can give 110% to their mission wit ... View more

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