Andrew Kiernan is a Principal Frontend Engineer based in Boston with 11 years of experience building polished, performant web interfaces across startups and mid‑sized products. He has progressed from hands‑on front‑end work to technical leadership roles at companies like Klaviyo and Alopex, bringing a pragmatic full‑stack sensibility from earlier full‑stack and backend-adjacent roles. A regular contributor to React-Bootstrap, he has improved core components like ListGroup to be more flexible and modern by adopting up‑to‑date React APIs and enabling varied element outputs. Andrew has a track record of measurable UI performance wins—such as halving render/animation costs on production digital signage—and a habit of turning practical UX needs into clean component APIs. His background includes non‑technical research and legal support roles, which inform his attention to detail and clear documentation. He combines front‑end craftsmanship with mentorship and cross‑team collaboration to ship maintainable, user‑focused interfaces.
11 years of coding experience
9 years of employment as a software developer
Bachelor’s Degree Political Science, Bachelor’s Degree Political Science at Suffolk University
Contributions:12 commits, 7 PRs, 1 push in 6 months
Contributions summary:Andrew primarily contributed to the React-Bootstrap repository by modifying and enhancing ListGroup and ListGroupItem components. Their work involved fixing bugs, improving the flexibility of the components by enabling different output element types (e.g., `<button>`, `<a>`), and refactoring code to use modern React APIs. The user also added features to enhance the component's behavior based on specific props.
Contributions:59 pushes, 14 branches in 1 year 9 months
reactbuilt-with-reactbootstrap-3cssbootstrap
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Andrew Kiernan - Principal Frontend Engineer at Alopex