Machine Learning Engineer / Applied Scientist (NLP / LLMs / Search) London(Hybrid) | Up to £110k

This is for a organisation is building a platform designed to help users navigate and analyse large volumes of complex technical and legal text using a combination of machine learning, search technologies and LLM-driven approaches.

They are looking for someone to play a key role in shaping how their systems retrieve, rank and interpret data at scale. The position sits across applied machine learning, NLP and search, with a strong focus on modern LLM-driven workflows.

The role is hands-on but also carries significant ownership, with responsibility for influencing technical direction across areas such as semantic search, vector retrieval, ranking optimisation, and retrieval-augmented pipelines.

Responsibilities include:

• Improving relevance and ranking across large-scale search systems
• Designing and optimising LLM-powered pipelines
• Working with hybrid and vector-based retrieval approaches
• Developing NLP components for structured and unstructured text
• Contributing to scalable ML infrastructure and cloud-based pipelines

The environment is primarily Python-based, leveraging frameworks such as PyTorch or TensorFlow, search technologies like Elasticsearch/OpenSearch, and AWS for infrastructure.

They are interested in candidates who:

• Have experience building and deploying ML systems in production
• Bring a background in NLP and/or LLM-based applications
• Are comfortable working with search or retrieval systems
• Have strong Python skills in a commercial environment
• Can take ownership of technical decisions and direction

The package offers a salary of up to £110k, 25 days holiday, and a hybrid working model (3 days onsite in London), along with flexibility and support for ongoing development.

• Have experience building and deploying ML systems in production
• Bring a background in NLP and/or LLM-based applications
• Are comfortable working with search or retrieval systems
• Have strong Python skills in a commercial environment
• Can take ownership of technical decisions and direction

The package offers a salary of up to £110k, 25 days holiday, and a hybrid working model (3 days onsite in London), along with flexibility and support for ongoing development.