Coinbase names new CTO after 14% workforce cut

Coinbase appointed Rob Witoff as chief technology officer on July 28, bringing an early company engineer into the role as the U.S. crypto exchange expands AI-assisted product development.

• Coinbase appointed longtime engineer Rob Witoff as chief technology officer, confirming the leadership change Tuesday.
• Witoff first joined Coinbase in 2014, returning as platform head in December 2024 after entrepreneurship.
• Coinbase cut approximately 14% of employees in May while rebuilding teams around AI-assisted workflows companywide.

Coinbase's official leadership page now lists Witoff as CTO.

Chief Executive Brian Armstrong announced the appointment on X and credited Witoff with helping turn Coinbase into "one of the most AI-enabled companies in the world." That description is Armstrong's assessment rather than an independently measured ranking.

Rob Witoff returns to a role shaped by Coinbase's early years

Witoff first joined Coinbase in 2014 and worked there until 2017. Coinbase said he led security and infrastructure, became chief architect and helped build some of the exchange's earliest systems. He later founded institutional crypto custody company Unit 410, which Coinbase acquired.

Witoff said his interest in Bitcoin began in 2009. He recalled that Coinbase initially supported one cryptocurrency, used a single codebase and ran with a small engineering team. The account provides historical context from the incoming executive, although Coinbase has not independently detailed every technical claim in the July 27 post.

The company brought him back in December 2024 as head of platform and a member of the executive team. Witoff said his latest "tour of duty" began with a goal of making Coinbase "the best place in the world to build." That remains a forward-looking management objective.

Coinbase CTO appointment comes during an AI overhaul

The promotion follows a broad change in how Coinbase develops software and organises teams. In May, the company announced plans to reduce its workforce by about 14%, or roughly 700 roles, while flattening management and building smaller teams around AI tools.

Armstrong said AI allowed engineers to complete work in days that previously took teams weeks. He also outlined experiments with "one person teams" combining engineering, product and design work. Those plans describe Coinbase's intended operating model; their long-term effect on output, costs and staff workloads is not yet established.

Coinbase later said nearly all newly merged code had become AI-generated and human-reviewed. Its July engineering report said the share rose from 5.7% in the first quarter of 2025 to roughly 100% by mid-2026, while maintaining human review and compliance controls.

Witoff inherits reliability and security responsibilities

The CTO will oversee technology while Coinbase expands derivatives, stablecoin payments, prediction markets and services for AI agents. Each product increases the need for dependable infrastructure, security controls and fast incident response.

Coinbase experienced a roughly 50-minute service disruption on July 14 after a routine configuration update affected a shared production cluster. Transfers, card payments and some onchain services were interrupted. The company said customer funds were not at risk and later announced new deployment safeguards and recovery procedures.

Witoff's background in security, architecture and platform engineering gives him direct experience with those areas. However, Coinbase has not published new performance targets, budget commitments or a separate technology roadmap tied to his appointment.

Leadership changes continue across Coinbase

The CTO appointment follows another executive transition. Chief Legal Officer Paul Grewal notified Coinbase on July 8 that he would leave his post on July 31. Molly Abraham is expected to become general counsel and corporate secretary, while Grewal will serve as an adviser through October.

As crypto.news previously reported, Coinbase's May restructuring placed AI-native development at the centre of its operating plan. In related coverage, crypto.news reported that Coinbase had launched tools allowing authorised AI agents to trade, make payments and perform financial tasks.

Coinbase plans quarterly reviews of its AI-focused engineering interview process and 45-day and 90-day assessments for new hires. The next test for Witoff will be whether the company can keep releasing products quickly while maintaining security, reliability and regulatory controls.