Malcolm Sparks - Founder at GraphCentric

Malcolm Sparks

Founder at GraphCentric

Milton Keynes, England, United Kingdom

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Summary

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Rockstar

🎓

Top School

Malcolm Sparks is a seasoned software founder and engineer with 15 years of experience building web and distributed systems, currently leading GraphCentric to create knowledge-graph driven solutions. A long-time Clojure advocate, he has made substantive open-source contributions to influential libraries such as Liberator, yada and bidi—improving REST semantics, async HTTP behavior, routing and OAuth2 support. He combines hands-on backend engineering with product leadership from founding multiple companies (including JUXT) and earlier stints managing critical risk/P&L systems at Deutsche Bank. Comfortable across the stack and operations, he has a track record of shipping robust, well-tested APIs and preparing projects for release. An early creator of test-coverage tooling that evolved into Cobertura, he brings a pragmatic, tooling-minded approach to maintainability and developer experience.

15 years of coding experience

28 years of employment as a software developer

Bsc IIi (Hons), Computer Science, Bsc IIi (Hons), Computer Science at University of Warwick

clojure, java, erlang, c, c++, scala, 68000, haskell, 6502, pl/sql, clojurescript

Stackoverflow

Stats

116reputation

52kreached

2answers

0questions

Github Skills (18)

http-authentication10

api-rest10

cors10

api-design10

clojure-cli10

restful-api10

testing10

http10

clojure10

compojure10

ring10

rest-api10

content-negotiation9

rest7

aleph6

Programming languages (13)

JavaCSSMakefileTeXHTMLTypeScriptShellANTLR

Github contributions (5)

juxt/yada

Dec 2014 - Sep 2021

A powerful Clojure web library, full HTTP, full async - see https://juxt.pro/yada/index.html

Role in this project:

Back-end Developer

Contributions:1458 commits, 122 PRs, 670 pushes in 6 years 9 months

Contributions summary:Malcolm's contributions focused on fixing tests and adding features related to authentication, access control, and content negotiation. They modified code related to HTTP method handling (GET, POST, PUT, DELETE), parameter validation, and error handling, incorporating best practices for API design and compliance. Furthermore, they introduced session cookie support, along with implementing a new resource that handles the logic of OAuth2 authentication.

indexindex-htmlweb-libraryasyncyada

juxt/bidi

Dec 2013 - Feb 2020

Bidirectional URI routing

Role in this project:

Full-stack Developer

Contributions:464 commits, 68 PRs, 171 pushes in 6 years 3 months

Contributions summary:Malcolm primarily contributed to the bidirectional URI routing project, fixing tests and implementing new features related to Ring-compatible request handlers. The commits demonstrate the addition of support for various request constraints and methods, making the routing more versatile. Furthermore, the user prepared the project for releases and contributed to performance improvements, showcasing a focus on both functionality and maintainability.

bidirectionalrouteruriroutingclojure

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