Gareth Marshall is a product security and software engineering leader with over 16 years of experience delivering secure, revenue-driving products for global markets. He has led security for cloud-native applications across distributed teams, implemented ISO-aligned secure development lifecycles, and translated technical risk into actionable executive guidance. Earlier work on the multi-award-winning CostX product combined hands-on engineering, customer-driven feature design, and mentorship to expand market reach and license growth. Gareth blends practitioner skills—threat modelling, SAST/SCA triage, SBOM generation—with a strategic view of third-party and disaster-recovery risk, and he actively shares knowledge through training and industry memberships. An early-career contributor to educational software and hands-on test automation for learning projects, he brings a practical, learner-focused mindset to building secure developer practices.
16 years of coding experience
24 years of employment as a software developer
BSc Computer Science, BSc Computer Science at University of Cape Town
javascript koans is an interactive learning environment that uses failing tests to introduce students to aspects of JavaScript in a logical sequence.
Role in this project:
QA Engineer / Test Automation Engineer
Contributions:7 commits in 1 day
Contributions summary:Gareth primarily contributed by adding and modifying tests within the JavaScript koans project. They implemented tests to cover various aspects of JavaScript, including equality comparisons, array manipulations, control structures, and the behavior of `NaN`. The work involved writing assertions using a testing framework, demonstrating a focus on ensuring the correctness and understanding of JavaScript concepts. They also made minor edits, such as replacing spaces with tabs.
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Gareth Marshall - Global Product Security Manager at RIB Software