Machine Learning Engineer

About the Role

We’re looking for a Machine Learning Engineer to design, build, and optimise next-generation Conversational AI systems that power intelligent, human-like digital assistants across the public sector. This is a permanent position offering remote working and flexibility with occasional client visits, expenses covered.

You’ll work on agentic AI workflows , fine-tune large language models , and ensure our systems are reliable, explainable, and secure - directly contributing to innovations that help government services run smarter and faster.

What You’ll Do

  • 🧠 Design & Build: Develop agentic AI workflows using frameworks like LangChain or LlamaIndex for complex, multi-step reasoning.
  • ⚙️ Model Optimisation: Fine-tune LLMs to improve accuracy, reduce latency, and lower infrastructure costs.
  • 🧪 Evaluation & Reliability: Build robust model evaluation frameworks to ensure consistency across model and code changes.
  • 🧩 Core Engineering: Develop scalable backend services in Python 3 with Git , FastAPI , or Django REST Framework .
  • ☁️ Cloud Integration: Work with Google Vertex AI , Amazon Bedrock , and Azure AI to integrate foundation models and APIs.
  • 🗂️ Contextual Retrieval: Use vector databases and retrieval systems to enhance contextual understanding.
  • 🤝 Collaboration: Partner with data scientists, engineers, and designers to continuously improve agent performance and reasoning.

Who You Are

You’re a hands-on engineer who’s excited by the intersection of AI, language, and systems engineering - someone who thrives in a collaborative, mission-driven environment.

You bring:

  • Proven experience deploying machine learning models into production environments.
  • Strong Python skills and experience with LLM frameworks (LangChain, LlamaIndex, HuggingFace Transformers).
  • Knowledge of conversational AI platforms (Dialogflow, Lex, Rasa).
  • Familiarity with TensorFlow , PyTorch , Keras , scikit-learn , and Pandas .
  • Experience integrating with cloud-based AI services (AWS, Google Cloud, Azure).
  • The ability to communicate complex technical concepts clearly and confidently.

Desirable (Not Essential)

  • Experience with AI application interfaces (MCP protocol).
  • Knowledge of multi-agent orchestration (LangGraph, AutoGen, CrewAI).
  • Familiarity with AI safety and observability tools (TruLens, Helicone, Guardrails AI).
  • Experience with Axolotl , LoRA , or QLoRA fine-tuning methods.

Why Join Us

  • 💡 Work on cutting-edge AI systems that make a tangible difference in how public services are delivered.
  • 🌍 Fully remote , flexible culture.
  • 🧭 Contribute to meaningful projects in science, innovation, and technology.
  • ⚡ Rapid, 1-stage interview process — no bureaucracy, just great conversations.
Company
Stealth iT Consulting
Location
United Kingdom, UK
Hybrid / WFH Options
Posted
Company
Stealth iT Consulting
Location
United Kingdom, UK
Hybrid / WFH Options
Posted