John Heath
Senior Software Engineer at Zellis
Peterborough, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolJohn Heath is a hands-on Senior Software Engineer with 11 years of professional experience and a long track record in C++ across security, finance, and high-performance streaming analytics. Currently refactoring legacy C into modern C++17 at Zellis, he has deep experience building and modernizing multithreaded, distributed systems from Bloomberg’s market-data feeds to Software AG’s Apama streaming engine. He routinely blends systems-level C++ work with scripting, containerization (Docker, Kubernetes, Rancher, K3S), and tooling (VSCode extensions, Python test frameworks), enabling smoother CI/CD and platform integration. Comfortable on Windows, Linux and ARM, he has a pragmatic eye for performance improvements—having introduced CAS lockless structures and modern STL refactors in earlier roles. Based in Peterborough, UK, he pairs engineering rigor with community-facing work (Apama community site and technical blogging), reflecting a curiosity that spans from low-level optimization to developer experience.
11 years of coding experience
28 years of employment as a software developer
MSc IT, MSc IT at University of LiverpoolBSc Chemistry, BSc Chemistry at Royal Holloway, University of LondonIsleworth and Syon
Stackoverflow
2,081reputation
134kreached
67answers
14questions
Github Skills (65)
apama10
cumulocity10
epl10
github-repos10
vscode-extension10
syntax-highlighting10
rust9
indexof9
cockpit8
splines8
testing7
cpython7
webapp7
micropython7
rpg7
Programming languages (9)
Github contributions (5)
ApamaCommunity/pysys-vscode-extension
Jul 2020 - Dec 2020
This is a vscode extension for the pysys framwork it enables the use of this testing framework in Visual Studio Code allowing the use of the UI to interact with and create tests for your software projects..
Contributions:2 releases, 70 commits, 13 PRs in 5 months
pysystestingvisual-studio-codevscode-extensionpysys-framework
ApamaCommunity/apama-vscode-extensions
Jun 2018 - Aug 2020
VS Code extension for the Apama EPL language https://marketplace.visualstudio.com/items?itemName=ApamaCommunity.apama-extensions ; see also https://www.cumulocity.com/product/apama-community-edition/
Contributions:101 commits, 20 PRs, 100 pushes in 2 years 2 months
apamavscode-extensionapama-communitysyntax-highlightingepl
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