David Leger is a frontend-focused design engineer based in Halifax with 11 years of experience building polished, testable web experiences and design systems. He’s rearchitected frontends for maintainability and migrated large codebases to TypeScript while also contributing backend microservices in Node and Go, showing true full-stack fluency. As a core maintainer of component libraries at Manifold and Kard, he pairs UX sensibility with engineering rigor to deliver consistent, themeable UI systems powered by CSS variables and web components. At Kard he identified >$20k/month in recoverable revenue and established incident management processes, blending product thinking with operational impact. He’s helped propagate growth engineering practices like A/B testing at Snyk and driven organizational changes that measurably increased engineering bandwidth. Comfortable mentoring and hiring, he excels at turning design-led ideas into scalable, production-ready products.
11 years of coding experience
9 years of employment as a software developer
Engineering Software Engineering, Engineering Software Engineering at University of New Brunswick
Contributions:16 pushes, 3 branches in 4 years 5 months
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