Summary
Ben Sangster is a product-oriented Staff Software Engineer with 10 years of experience building web platforms across thin- and fat-client stacks, currently at Figma after five years scaling web experimentation and UX at Etsy. He has deep expertise in A/B testing—owning experiment correctness and tooling at Twitter—plus a track record of driving measurable product gains, from retention improvements to media interaction boosts. Ben combines front-end and server-side skills (Scala, Node.js, client libraries) with pragmatic engineering leadership: mentoring teams, raising testing and linting standards, and owning long-term refactors. He’s comfortable translating research and experiments into shipped product decisions and has repeatedly reduced risk in experimentation via libraries and automated safeguards. An early background in visual simulations and native bindings reflects an appetite for complex, cross-layer problems and performance optimization. Ben holds a BS in Computer Science from UC Santa Cruz and favors practical, product-driven engineering over purely academic solutions.
10 years of coding experience
15 years of employment as a software developer
University of California Santa Cruz