José Santos
Principal Software Engineer at Microsoft
Lisbon, Lisbon, Portugal
Summary
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Rockstar🎓
Top SchoolJosé Santos is a Principal Software Engineer based in Lisbon with a deep specialty in AI, large language models, and search systems, bringing over a decade of industry experience and a PhD from Imperial College London. At Microsoft he has led integrations of LLMs into consumer products like SwiftKey and Bing, doubled engagement metrics through personalized notifications, and built large-scale pipelines that saved users over $1B via Price Insights. He now designs evaluation tasks and metrics to benchmark multimodal LLMs (GPT-4o, Llama, Gemini, Claude, Mistral, etc.), turning complex model behaviors into actionable insights for product and cost decisions. His background spans core query formulation, multilingual relevance improvements, and productionizing ML safely to avoid harmful outputs. Unusually for someone at his level, he combines formal academic research in inductive logic programming with hands-on distributed systems engineering across Microsoft’s Hadoop-like stack. This blend of rigorous research, product impact, and operational experience makes him effective at translating advanced ML research into reliable, user-facing features.
10 years of coding experience
15 years of employment as a software developer
Ph.D. Computer Science, Ph.D. Computer Science at Imperial College LondonMestrado Artificial Intelligence, Mestrado Artificial Intelligence at Universidade Nova de Lisboa
English, Portuguese
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (13)
azure10
azure-functions10
sdk10
python10
azure-sdk10
microsoft9
logic8
inductive-logic-programming8
logic-programming7
cpp6
firebase6
system-programming6
cli6
Programming languages (2)
Github contributions (5)
JoseCSantos/GILPS
May 2017 - Sep 2022
Contributions:10 commits, 2 PRs, 9 pushes in 5 years 4 months
cpplogic-programmingsystem-programminginductive-logic-programminglogic
JoseCSantos/azure-sdk-for-python
Mar 2025 - Mar 2025
This repository is for active development of the Azure SDK for Python. For consumers of the SDK we recommend visiting our public developer docs at https://learn.microsoft.com/python/azure/ or our versioned developer docs at https://azure.github.io/azure-sdk-for-python.
Contributions:14 pushes, 3 branches in 16 days
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