

Principal Product Designer at OneMain Financial
Principal Product Designer at OneMain Financial
Spencer Guerra is an award winning, Texas-based, Principal Product Designer with 10+ years of experience building 0→1 products. He specializes in helping companies launch cross-platform products and services through user research, prototyping, validation of solutions, and rapid ideation.
Spencer has been the first product hire at multiple venture-backed startups—helping secure over $25M in funding from names like the founders of Reddit, Twitch, and Crunchyroll—and more recently led design at OneMain Financial, where he integrated a newly acquired fintech brand.
Whether he’s shaping MVPs with founding teams or aligning stakeholders in complex orgs, Spencer’s work consistently drives measurable impact through his strategic lens to product design that balances user needs with business outcomes.
When not building products or coaching founders—Spencer is traveling around Texas with his wife and son, binging Netflix, or cooking tacos. 🌮