Leon Starr
MBSE Expert, Requirements Analyst, Executable Modeler, Speaker, Writer at Woven Planet Holdings
Oakland, California, United States
Summary
👤
Senior🎓
Top SchoolLeon Starr is an MBSE expert and executable modeler with over three decades of hands-on experience translating fuzzy requirements into platform-independent, production-ready models for safety-critical and embedded systems. As founder of Model Integration LLC and former MBSE lead at Toyota Research Institute, he has guided global teams in building executable UML and model-driven code generation for autonomous driving, avionics, medical devices, and defense systems. He is the lead author of Models to Code (Apress, 2017) and has a longstanding track record of teaching, mentoring, and embedding with clients like Saab, Ericsson, and St. Jude to deliver high-assurance behavior through early simulation. Leon specializes in separating business/science logic from implementation to enable early system validation, rapid platform migration, and reliable code generation under tight concurrency and resource constraints. Based in Oakland, he continues to write and speak on practical MBSE, often revealing pragmatic process fixes learned from decades of rescuing messy models and delivering real products. An early adopter of model-driven engineering, he still keeps hand-drawn class/state models from the pre-UML era as a reminder of how far modeling practice has evolved.
14 years of coding experience
17 years of employment as a software developer
University of California Santa Cruz
Swedish, English, French
Stackoverflow
490reputation
58kreached
6answers
6questions
Github Skills (15)
mermaid10
metamodel9
modeling-tool9
uml9
robotics8
diagram8
sequence-diagram8
packrat-parsing6
markdown6
sqlalchemy6
python6
platform-independent6
list-comprehension6
self-driving-car5
autonomous-vehicles5
Programming languages (2)
Github contributions (5)
modelint/shlaer-mellor-metamodel
Aug 2021 - Sep 2022
A metamodel to support Executable UML based on Shlaer-Mellor semantics
Contributions:6 reviews, 300 commits, 8 PRs in 1 year 1 month
metamodeluml
modelint/flatland
Oct 2024 - Jul 2026
Contributions:286 pushes, 53 branches, 16 tags in 1 year 8 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.