Henry Coles
Head Of Mutation Testing
City of Edinburgh, Scotland, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolHenry Coles is a seasoned software leader with 13 years' experience specialising in mutation testing and developer productivity, currently heading Mutation Testing at Computing Distribution Group in Edinburgh. He combines hands-on engineering with product leadership, previously running his own consultancy (Pitest Consulting) and shaping development and innovation practices at NCR and SolarWinds. A long-time contributor to the Pitest open-source project—helping add tests, fix core bugs and improve JVM mutation testing—he brings deep practical knowledge of test automation and Java tooling. Henry’s background blends technical design and team leadership from roles at Bright Grey and LogicaCMG, grounded in an academic foundation in chemistry and biomaterials from the University of Nottingham. Colleagues know him for turning testing theory into usable tooling that improves code confidence across organisations. He often pairs pragmatic engineering with a researcher’s curiosity, drawing on an uncommon materials-science education to inform structured problem-solving in software.
13 years of coding experience
12 years of employment as a software developer
Metallic Foams, Metallic Foams at University of Nottingham
Stackoverflow
6,028reputation
432kreached
139answers
27questions
java
top-5%
bytecode
top-5%
unit-testing
top-5%
maven
top-5%
Github Skills (13)
javas10
mutation-testing10
junit10
java10
test-automation10
testing10
bytecode9
maven9
unit-testing9
tomcat6
mutation6
instrumentation6
pitest6
Programming languages (11)
Github contributions (5)
hcoles/pitest
Jan 2014 - Jan 2023
State of the art mutation testing system for the JVM
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:96 releases, 10 reviews, 832 commits in 9 years 2 months
Contributions summary:Henry contributed to the Pitest project by adding tests and fixing bugs related to the core functionality of mutation testing for Java. The commits include additions to the test suite, addressing specific issues, and enhancements to improve the overall quality of the project. Furthermore, the user made changes to various classes related to parsing options.
jvm-bytecodeartmutation-analysismutationmutation-testing
hcoles/classycle-maven-plugin
Jan 2013 - Apr 2014
Simple maven plugin for classycle
Contributions:21 commits, 1 comment in 1 year 3 months
maven-plugingatlingmavenloadtestingmaven-extension
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