Lex Mitchell
Enterprise Architect And Capability Owner at bp
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolLex Mitchell is an enterprise architect and capability owner based in London with 15+ years of experience modernising software delivery and large-scale IT estates across FTSE organisations. At bp he oversees a $120M+ technology portfolio, led initiatives that delivered $9M+ in 2025 cost savings, and authored the company’s foundational Gen AI usage policies to enable safe adoption. Previously he transformed developer productivity and CI/CD practices as Chief Architect for Modern Applications and drove cloud and API platform strategy at Experian. Lex combines hands-on platform and developer experience improvements with M&A technical due diligence, regularly translating technical risk into executive decisions. He pairs deep engineering roots—dating back to early architecture roles at ASOS—with a proven ability to shift culture and governance toward scalable, automated delivery.
10 years of coding experience
13 years of employment as a software developer
BSc (Hons) Computer Science, BSc (Hons) Computer Science at Aberystwyth University
Stackoverflow
658reputation
1.4mreached
13answers
5questions
Github Skills (113)
azure-ad-b2c10
csharp10
c-programming10
single-page-application9
dotnet9
roslyn9
visual-studio-extension9
visual-studio-code-extension9
authentication9
nuget9
visual-studio9
code-analysis9
msal9
roslyn-analyzer9
paths9
Programming languages (8)
Github contributions (5)
Lexcess/CodeContracts.MSBuild
Jun 2017 - May 2023
Standalone MSBuild integration of CodeContracts (by Microsoft Research)
Contributions:1 PR, 2 branches, 1 comment in 6 years
microsoft-researchdotnetmsbuildstandalonecsharp
Lexcess/SemanticVersioning.MSBuild
Feb 2016 - Dec 2018
Contributions:3 releases, 58 commits, 50 pushes in 2 years 9 months
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