John Graham-Cumming is a British

software engineer Software engineering is a systematic engineering approach to software development. A software engineer is a person who applies the principles of software engineering to design, develop, maintain, test, and evaluate computer software. The term ''p ...

and writer best known for starting a successful petition to the

Government of the United Kingdom ga, Rialtas a Shoilse gd, Riaghaltas a Mhòrachd , image = HM Government logo.svg , image_size = 220px , image2 = Royal Coat of Arms of the United Kingdom (HM Government).svg , image_size2 = 180px , caption = Royal coat of arms of t ...

asking for an apology for its persecution of

Alan Turing Alan Mathison Turing (; 23 June 1912 – 7 June 1954) was an English mathematician, computer scientist, logician, cryptanalyst, philosopher, and theoretical biologist. Turing was highly influential in the development of theoretical com ...

. , he serves as Chief Technology Officer (CTO) at

Cloudflare Cloudflare, Inc. is an American content delivery network and DDoS mitigation company, founded in 2009. It primarily acts as a reverse proxy between a website's visitor and the Cloudflare customer's hosting provider. Its headquarters are in San ...

; previously he worked at

Electric Cloud Electric Cloud, Inc. was a privately held, DevOps software company based in San Jose, CA. Founded in 2002, Electric Cloud was a provider of application release orchestration (ARO) tools, automating release pipelines and managing application life ...

Education

Graham-Cumming was educated at the

University of Oxford , mottoeng = The Lord is my light , established = , endowment = £6.1 billion (including colleges) (2019) , budget = £2.145 billion (2019–20) , chancellor ...

where he was awarded a

Doctor of Philosophy A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common Academic degree, degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields ...

degree in

Computer Science Computer science is the study of computation, automation, and information. Computer science spans theoretical disciplines (such as algorithms, theory of computation, information theory, and automation) to Applied science, practical discipli ...

in 1992 for research on

communicating sequential processes In computer science, communicating sequential processes (CSP) is a formal language for describing patterns of interaction in concurrent systems. It is a member of the family of mathematical theories of concurrency known as process algebras, or ...

(CSPs) supervised by Jeff W. Sanders. He was a postgraduate student at

Lady Margaret Hall, Oxford Lady Margaret Hall (LMH) is one of the constituent colleges of the University of Oxford in England, located on the banks of the River Cherwell at Norham Gardens in north Oxford and adjacent to the University Parks. The college is more formall ...

Career

Graham-Cumming is the original writer of

POPFile POPFile is a free, open-source, cross-platform mail filter originally written in Perl by John Graham-Cumming and maintained by a team of volunteers. It uses a naive Bayes classifier to filter mail. This allows the filter to "learn" and classify ...

, an open-source, cross-platform

email spam Email spam, also referred to as junk email, spam mail, or simply spam, is unsolicited messages sent in bulk by email (spamming). The name comes from a Monty Python sketch in which the name of the canned pork product Spam is ubiquitous, unavoida ...

filtering program. He is the author of ''The Geek Atlas'', a travel book, and ''The GNU Make book'', a how-to technical manual for the

GNU GNU () is an extensive collection of free software (383 packages as of January 2022), which can be used as an operating system or can be used in parts with other operating systems. The use of the completed GNU tools led to the family of operat ...

make software. In October 2010, he started an organization whose aim is to build

Charles Babbage Charles Babbage (; 26 December 1791 – 18 October 1871) was an English polymath. A mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer. Babbage is considered ...

Analytical Engine The Analytical Engine was a proposed mechanical general-purpose computer designed by English mathematician and computer pioneer Charles Babbage. It was first described in 1837 as the successor to Babbage's difference engine, which was a des ...

, known as Plan 28. He has also campaigned for

open-source software Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose. Op ...

in science. In 2014, he launched his MovieCode site on

Tumblr Tumblr (stylized as tumblr; pronounced "tumbler") is an American microblogging and social networking website founded by David Karp in 2007 and currently owned by Automattic. The service allows users to post multimedia and other content to a sho ...

, which aims to connect

film A film also called a movie, motion picture, moving picture, picture, photoplay or (slang) flick is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, feelings, beauty, or atmosphere ...

screenshots to specific extracts of

source code In computing, source code, or simply code, is any collection of code, with or without comments, written using a human-readable programming language, usually as plain text. The source code of a program is specially designed to facilitate the wo ...

References

{{DEFAULTSORT:Graham-Cumming, John Living people Year of birth missing (living people) British computer programmers Free software programmers Businesspeople in information technology Place of birth missing (living people) Alumni of Lady Margaret Hall, Oxford Cloudflare people