Paul Louth

London, England, United Kingdom

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Summary

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Rockstar

Paul Louth is a pragmatic software engineer based in London with over a decade of professional experience and a coding journey that began in 1985. He focuses on making software work reliably, blending practical backend development with an appreciation for functional programming paradigms. An active open-source contributor, Paul has improved core abstractions in the LanguageExt C# library—optimising Either semantics, performance and state/validation propagation. He brings a concise, improvement-oriented approach: removing inefficiencies, tightening memory use and adding useful API members like MapLeft. Curious and persistent, he pairs long-term hands-on experience with a willingness to revisit and refine foundational code.

12 years of coding experience

Stackoverflow

Stats

1,590reputation

45kreached

45answers

1question

Badges

functional-programming

top-5%

Github Skills (17)

dotnet-core10

functional-programming10

csharp10

code-optimization9

error-handling9

refactoring9

immutability8

immutability-helper8

software-design8

async-await6

monads6

haskell6

design-patterns6

if-statement6

oop6

Programming languages (7)

C#C++CSSCHaskellHTMLF#

Github contributions (5)

louthy/language-ext

Nov 2014 - Jan 2023

C# pure functional programming framework - come and get declarative!

Role in this project:

Back-end Developer

Contributions:106 releases, 16 reviews, 1655 commits in 8 years 3 months

Contributions summary:Paul's commits focus on improving the `Either` class within the LanguageExt.Core library. These commits involved adding new members such as `MapLeft`, and restructuring existing code to improve performance and address potential memory issues by removing unused or inefficient code blocks. Further commits demonstrate changes to the code base relating to validation and state propagation.

functional-languagelanguage-extfunctional-programmingclass-librarybcl

louthy/best-form

Jul 2016 - Jun 2022

Contributions:15 commits, 33 pushes, 1 branch in 6 years

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