Sam Ellner
I design financial products where mistakes cost users real money, from founding a startup to leading Gemini's derivatives and staking platforms and Balyasny's internal research tools. My focus is making regulated, high-stakes systems legible.
Case Studies
I designed Gemini's onboarding for international crypto derivatives traders, from account creation to first trade.
Zero to One · Crypto
I redesigned Gemini's trading interface to support derivatives: leverage, margin, and position management.
Zero to One · Crypto
I designed Hello Moon's developer platform, giving external teams self-serve access to Solana's on-chain data.
Zero to One · Crypto
Zero to One · Crypto
I co-founded Hansel, turning spare change into first-time crypto investments.
I designed Policygenius' customer dashboard, a single hub for tracking your insurance applications and discovering new products.
Zero to One · Insurance
I designed Gemini's first staking experience, helping users earn yield on their crypto and understanding how and why.
Zero to One · Crypto
Experience
Balyasny Asset Management – Lead Product Designer
August 2023 - Present
Hello Moon – Lead Product Designer
May 2022 – June 2023
Gemini – Senior Product Designer
May 2021 – April 2022
Policygenius – Senior Product Designer
April 2019 – April 2021
HuffPost – Product Designer
June 2015 – April 2019
Hansel Invest – CEO, Co-Founder
September 2017 – November 2019