Machine Learning Engineer - LLMs, Retrieval and MLOps for NATO

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• Bringing machine learning and data science methods to new datasets and new questions, and judging honestly how well the result performs and how good the data underneath it is.
• Finding what is wrong in models, pipelines and datasets, and fixing it in ways that survive contact with production.
• Designing, writing, testing, documenting and refactoring the programs, scripts and AI components the capability is made of.
• Working to the engineering standards and secure development practices of the organisation, so that what you build can be maintained by someone else.
• Supporting the whole lifecycle: gathering what is actually needed, choosing how the team works, and automating build, test, release and monitoring.
• Defining AI modules for integration, producing the build definitions and validating finished modules against agreed functional, quality, security and performance criteria.
• Building and improving the data pipelines that feed all of it, including extraction, transformation and loading work.
• Keeping colleagues informed - progress, risks and blockers - and sharing delivery ownership through reviews rather than handovers.
• Watching what is arriving in the field and contributing to technology assessments, roadmaps and internal knowledge sharing.

• Hands-on history of developing, optimising, deploying and maintaining complete AI pipelines, including training, packaging, monitoring and lifecycle management.
• Strong programming alongside the machine learning: software engineering discipline applied to applied AI work.
• A solid grasp of model evaluation - how performance is measured, how it is assessed and how a model is actually improved.
• Practical use of pre-trained and foundation models, large language models and generative techniques on problems that needed solving.
• Retrieval-augmented generation, embeddings, vector stores and production agent backends, with frameworks such as LangChain, LlamaIndex or Pydantic AI.
• MLOps in earnest: version control, continuous integration and delivery, experiment and model lifecycle practice, automated build and release.
• Backend craft - REST services and modern Python with FastAPI, Pydantic or similar.
• Containers and orchestration: Docker, Kubernetes, Helm, cloud provisioning, and workflow orchestration such as Airflow or Argo.
• Guardrails and operational control for language-model systems: observability, logging and monitoring that tell you when something has drifted.
• SQL and NoSQL databases, and enough TypeScript, Node.js or Next.js to meet the front end halfway.
• Nice to have: experience of working in secure, restricted or disconnected environments.