What Block actually looks for
Block, founded by Jack Dorsey and Jim McKelvey as Square before renaming in 2021, sits over a set of genuinely distinct businesses: Square, which builds point-of-sale and small business tools, Cash App, its large consumer peer-to-peer payments product, and TIDAL, the music streaming service Block owns. The rename reflected a broader ambition around blockchain and bitcoin, and the company has been a consistent bitcoin advocate under Dorsey's leadership, building bitcoin-related products and holding it on its balance sheet. Internally, Block has leaned toward smaller, semi-independent teams operating with real autonomy rather than one tightly centralized organization, so interviewers often want to see that candidates can operate with ownership and make decisions without waiting for heavy top-down direction. Because Square and Cash App serve genuinely different users, small business owners on one side and everyday consumers sending money on the other, interviewers care about whether candidates understand which business they're actually interviewing for rather than treating Block as one undifferentiated product.
Common questions and how to answer them
Tell us about a time you owned a decision without waiting for sign-off from above. Block's more autonomous, small-team structure rewards candidates who can show real independent judgment, not just following instructions well. How would you design a product differently for a small business owner versus an individual consumer? This tests whether you understand Square and Cash App serve very different needs, so ground your answer in the specific business you're interviewing for. What's your view on bitcoin's role in Block's business? Given the company's public bitcoin advocacy, interviewers want a thoughtful, informed answer, not blind enthusiasm or dismissal.
How to prepare
Get clear on which part of Block you're actually interviewing for, Square, Cash App, or TIDAL, since these serve very different users and interviewers expect you to speak to that specific business rather than the company in generic terms. Read up on why the company renamed itself from Square to Block in 2021 and how that reflects its bitcoin and blockchain ambitions, since it comes up as a culture-fit topic. Prepare examples that show comfort operating with autonomy in a small team, since Block's structure leans toward independent units rather than heavy centralized process. If you're in a technical role, understand the basics of Cash App's peer-to-peer payments model and how it differs from Square's merchant-facing tools.