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Machine Learning Engineer

The Portfolio Group
City of London
2 weeks ago
Applications closed

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Machine Learning Engineer

An exceptional opportunity to join an innovative, high-growth organisation shaping the future of AI-powered automation and digital interaction.


We’re seeking aMachine Learning Engineer with full-stack development experienceto work on cutting-edge projects involvingGenerative AI,Retrieval-Augmented Generation (RAG), andmulti-agent reasoning frameworks.


This is a hands-on, end-to-end engineering role with impact across the full ML lifecycle – from experimentation to deployment.


  • Conversational AI & Reasoning:Design, fine-tune, and deploy advanced LLMs with agentic capabilities
  • RAG Pipelines:Build and optimise scalable pipelines for structured and unstructured data retrieval
  • LLM Training & Fine-Tuning:Use methods like LoRA, QLoRA, SFT, PEFT, and RLHF
  • Inference & Acceleration:Serve models using vLLM, DeepSpeed, Triton, TensorRT
  • Multi-Agent Orchestration:Work with LangChain, AutoGen, CrewAI, DSPy and similar tools
  • Cloud & MLOps (AWS):Deploy with SageMaker, Bedrock, Lambda, S3, ECS, EKS
  • Full-Stack Integration:Build APIs (FastAPI, Flask) and integrate with React, TypeScript, Node.js
  • Vector Search:Use FAISS, Weaviate, Pinecone, ChromaDB, OpenSearch


Required skills & experience:


  • 3–5+ years of experience in ML engineering and software development
  • Deep Python proficiency, with PyTorch, TensorFlow or Hugging Face
  • Proven experience with LLMs, RAG, and deploying cloud-native AI on AWS
  • Strong full-stack skills (React, TypeScript, Node.js) and API development
  • Familiarity with vector databases and multi-agent frameworks


Apply now to join this high growth and award-winning organisation with the opportunity to be part of building the future of AI driven projects and solutions. The role offers a highly competitive salary and benefits package and will be office based in London.

National AI Awards 2025

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