Senior Applied Scientist, Vector Search & NLP

Microsoft; City of Westminster; On-site; GBP 75,000 - 123,000; Full time

Job summary

Microsoft UK is seeking a Senior Applied Scientist to advance M365 Copilot Search and Chat quality. You will research, evaluate, and apply cutting-edge vector search and ML techniques, working with platform teams to scale evaluation and deployment.

You will mine data to improve retrieval quality, build expertise in NLP and embeddings, and collaborate with product groups across Microsoft to deliver high-impact research-driven solutions.

Qualifications

• Bachelor's Degree requirements with 4+ years related experience OR Master's with 2+ years OR Doctorate in relevant fields
• Equivalent experience accepted

Responsibilities

• Research and evaluate tools, technologies, and methods to improve M365 Copilot Chat and Search quality
• Build deep knowledge of M365 Copilot Search and consult with engineers and product teams
• Mine data to identify opportunities and evaluate models, mapping user journeys and communication insights
• Develop expertise in search relevance, NLP, data-driven analysis, and scalable, extensible solutions
• Build collaborative relationships across Microsoft and publish research where applicable

Skills

ML

NLP

Information retrieval

Python

PyTorch

Vector retrieval

Embeddings

LLMs

A/B testing

Education

Bachelor's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field

Master's Degree in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field

Doctorate in Statistics, Econometrics, Computer Science, Electrical or Computer Engineering, or related field

Tools

Python

PyTorch

FAISS

Job description

Microsoft UK is seeking a Senior Applied Scientist to advance M365 Copilot Search and Chat quality. You will research, evaluate, and apply cutting-edge vector search and ML techniques, working with platform teams to scale evaluation and deployment.

You will mine data to improve retrieval quality, build expertise in NLP and embeddings, and collaborate with product groups across Microsoft to deliver high-impact research-driven solutions.