US fintech and digital payments company (formerly Square) that owns Square, Cash App, Afterpay and TIDAL, led by Jack Dorsey.
block.xyzLegal name
Block, Inc. (formerly Square, Inc.)Founded
February 14, 2009
Headquarters
Oakland, California, US
Industry
Financial technology and digital payments
CEO
Jack Dorsey
Employees
About 10,205
Revenue (FY2025)
$24.19 billion
Market Cap
About $48.29 billion (July 2026)
Listed on
NYSE: XYZ (formerly SQ)
Website
block.xyzBlock, Inc. is a US financial technology and digital payments company that was founded on February 14, 2009 as Square, Inc. and renamed Block, Inc. in December 2021. It's headquartered in Oakland, California and runs a distributed workforce of about 10,205 employees. The company trades on the New York Stock Exchange under the ticker XYZ, which it adopted in January 2025 after previously listing as SQ.
The company operates as one business built from several units, including Square for merchant point-of-sale and commerce tools, Cash App for consumer payments and banking, Afterpay for buy now pay later, TIDAL for music streaming, plus Bitkey and Proto for Bitcoin hardware and mining. Its stated purpose is building technology for economic empowerment and increasing access to the global economy.
Block is led by cofounder Jack Dorsey, who holds the title Block Head (CEO) and Chairman. Amrita Ahuja serves as Chief Financial Officer and Chief Operating Officer, overseeing finance, legal, and people functions. For fiscal year 2025 the company reported revenue of about $24.19 billion, roughly flat against 2024, and carried a market capitalization near $48.29 billion as of July 2026.
Block Head (CEO), Chairman and Cofounder
Chief Financial Officer and COO
Ecosystem Lead
Sales and Marketing Lead
Interview experience
Favorable
Interview difficulty
Medium
Interview process length
About a week
Practice real questions and get instant feedback before the call.
Q: Implement a function to reverse a linked list.
A: Walk the list once, re-pointing each node's next to its previous node while tracking prev, current, and next pointers. It runs in O(n) time and O(1) extra space.
Q: Find the longest substring without repeating characters.
A: Use a sliding window with a hash map of last-seen indices, expanding the right edge and moving the left edge past any repeat. It solves in O(n) time.
Q: Implement a function to check if a binary tree is balanced.
A: Compute each subtree's height with a single post-order pass and return early if any left and right heights differ by more than one. It runs in O(n).
Q: Design a URL shortening service like bit.ly.
A: Map a generated short key to the long URL in a key-value store, encode the key with base62, and serve redirects through a cached lookup. Plan for collisions, custom aliases, and analytics.
Practice real questions and get instant feedback before the call.
L3 to L7 levels
$159K to $630K (median $310,554 total comp)
L6 to L8 levels
$471K to $953K (median $669,511 total comp)
US average
$312,480
38 Salaries submitted
US average
$232,900
48 Salaries submitted
US average
$260,005
54 Salaries submitted
US average
$277,645
23 Salaries submitted
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July 14, 2026
Cash App expands Borrow lending product
Block published details on how Cash App Borrow is widening access to short-term credit through what it calls responsible lending. The move is part of Block's push to grow financial services beyond core payments.
#CashApp #Lending #Fintech
View postJuly 9, 2026
Block pays $45M to settle Cash App fraud claims
Block agreed to a $45 million settlement with 46 states resolving claims it misled Cash App users about safety and failed to protect them from fraud. Regulators cited weak identity checks at sign-up and years without phone support.
#Regulation #CashApp #Settlement
View postMay 7, 2026
Q1 gross profit up 27%, guidance raised
Block reported first-quarter gross profit of $2.91 billion, up 27% year over year, and lifted full-year guidance to $12.33 billion. A GAAP net loss of $309 million reflected $852 million in restructuring charges and a bitcoin remeasurement loss.
#Earnings #Q12026 #Fintech
View postApril 27, 2026
Block launches new Bitkey wallet and bitcoin earning
Block launched a Bitkey hardware wallet with a screen, added automatic bitcoin earning on Cash App, and introduced Proof of Reserves. The releases deepen Block's bitcoin product line.
#Bitcoin #Bitkey #CashApp
View postApril 22, 2026
Block and Uber expand global partnership
Block and Uber widened their global partnership to support restaurant operations and bring Cash App Pay to Uber's platforms. The deal extends Square and Cash App reach into food delivery.
#Partnership #CashAppPay #Square
View postBlock, Inc. is a US financial technology and digital payments company, formerly known as Square, Inc. It owns Square, Cash App, Afterpay, and TIDAL, plus the Bitkey and Proto bitcoin products.
