Machine Learning Engineer

The Portfolio Group; East Midlands; On-site; GBP 60,000 - 100,000; Full time

Job summary

An innovative market leader is seeking a talented Machine Learning Engineer with full-stack experience to join their dynamic team. This role focuses on leveraging advanced generative AI and retrieval-augmented generation to build intelligent systems. You will work on exciting projects that include model fine-tuning, deployment, and end-to-end AI product development. With a competitive salary and benefits package, this is a fantastic opportunity to shape the future of AI-driven solutions. Join a high-growth organization and make a significant impact in the world of AI.

Qualifications

• 3-5+ years in machine learning and software development.
• Proficient in Python, with experience in RAG and LLM fine-tuning.

Responsibilities

• Develop and deploy LLMs with reasoning capabilities.
• Implement and optimize RAG pipelines for information retrieval.

Skills

Machine Learning

Python

Full-Stack Development

AWS

API Development

PyTorch

TensorFlow

React

TypeScript

Node.js

Tools

FastAPI

Flask

SageMaker

Lambda

DynamoDB

Pinecone

Weaviate

FAISS

Milvus

ChromaDB

Job description

An exceptional opportunity for a Machine Learning Engineer (with Full-Stack experience) to join an innovative market leader at the forefront of developing next-generation solutions that transform digital interactions. The role will focus on projects to leverage state-of-the-art generative AI, retrieval-augmented generation (RAG), and reasoning frameworks to build intelligent and context-aware systems.

We are seeking talented Machine Learning Engineers with full-stack software development experience to join our client's team and help shape the future of AI-powered automation. Within this dynamic role varied duties will include:

• Search relevancy engineering.
• Conversational AI Development: Design, train, fine-tune, and deploy LLMs with reasoning capabilities.
• Retrieval-Augmented Generation (RAG): Implement, optimise, and scale RAG pipelines for effective information retrieval from structured and unstructured sources.
• Model Fine-Tuning & Training: Train domain-specific models using techniques like LoRA, QLoRA, PEFT, reinforcement learning, and supervised fine-tuning (SFT).
• Model Deployment & Inferencing: Optimise model serving and inference using vLLM, DeepSpeed, TensorRT, Triton, and other acceleration frameworks.
• Multi-Agent Systems: Develop and integrate agentic capabilities using frameworks such as LangChain, CrewAI, AutoGen, and DSPy.
• AWS Cloud & MLOps: Deploy scalable machine learning workloads on AWS using services like SageMaker, Bedrock, Lambda, S3, DynamoDB, ECS, and EKS.
• End-to-End AI Product Development: Work across the full ML lifecycle, from data collection and preprocessing to model evaluation, deployment, and monitoring.
• Full-Stack Integration: Develop APIs and integrate ML models into web applications using FastAPI, Flask, React, TypeScript, and Node.js.
• Vector Databases & Search: Implement embeddings and retrieval mechanisms using Pinecone, Weaviate, FAISS, Milvus, ChromaDB, or OpenSearch.

Required skills & experience:

• 3-5+ years in machine learning and software development
• Proficient in Python, PyTorch or TensorFlow or Hugging Face Transformers
• Experience with RAG, LLM fine-tuning, and expertise in AWS and cloud-native AI deployments.
• Full-stack experience (React, TypeScript, Node.js) and API development.
• Familiarity with vector search and multi-agent orchestration

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 Leicestershire.

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