Leonard Martin
Lead Engineer at CDP
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolLeonard Martin is a Lead Engineer based in London with over 20 years delivering digital products and 14 years of hands-on engineering experience across public and private sectors. He has led projects end-to-end—from discovery and architecture through CI/CD, deployment and live support—working with major clients such as the Home Office, NHS, Barclays and Unilever. Comfortable both as a hands-on developer and a technical leader (former CTO), he excels at aligning technical solutions with product and user needs through close collaboration with stakeholders and design teams. Leonard contributes to open-source tooling—improving the popular cli-progress library’s ETA, performance and API—which reflects his attention to pragmatic performance and developer experience. He combines deep JavaScript/Node expertise with formal mathematical training (M.Math, Oxford), bringing a rigorous, data-informed approach to engineering decisions.
14 years of coding experience
16 years of employment as a software developer
M.Math Mathematics, M.Math Mathematics at University of Oxford
Github Skills (14)
progress-view10
command-line-interface10
nodejs10
javascript10
lib10
progress-bar10
performance-optimization10
progress-indicator10
command-line10
cli10
debug9
debugging9
unit-testing8
unit-test8
Programming languages (12)
Github contributions (5)
npkgz/cli-progress
Jul 2016 - Nov 2016
:hourglass: easy to use progress-bar for command-line/terminal applications
Role in this project:
Back-end Developer
Back-end DeveloperContributions:8 commits, 6 PRs, 3 comments in 4 months
Contributions summary:Leonard contributed significantly to the `cli-progress` library, adding several key features and improving its functionality. They fixed a typo, improved the ETA calculation using a buffer, added an `increment` method, and integrated it into an example. Furthermore, they optimized performance by calculating ETA only on render and added output time formatting options. The user also addressed a critical bug in frame-per-second parsing and introduced an automatic stop feature.
command-line-toolhourglasscli-appcommand-line-interfacejavascript
lennym/proon
Jul 2017 - Nov 2017
Contributions:29 commits, 14 pushes, 1 branch in 3 months
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