Chase CIO Gill Haus on leading the bank’s technology

Gill Haus oversees more than 12,000 technologists at Chase and lists system security and availability as his top priorities while expanding the bank’s use of generative AI via JPMorgan’s internal LLM Suite, which rolled out to employees in summer 2024.

Haus became CIO in September 2021 after joining Chase in 2020. He reports to CEO Troy Rohrbaugh and leads teams that support consumer banking, home lending and wealth management.

Chase serves about 87 million consumer customers and 7.5 million small-business clients. The bank operates roughly 5,100 branches and 14,500 ATMs and provides services across mobile, online, phone and branch channels. “There are millions of customers that use us every single day,” Haus said, citing the need to keep systems available and protect customer data.

Operational resilience and security guide the technology agenda. Haus described efforts to modernize practices, shift workloads to the cloud and build systems designed to be available, scalable and secure. Development methods such as continuous integration and continuous deployment are used to speed testing and releases and to increase confidence in releases.

AI is a central focus. Chase has used machine learning for personalization, underwriting and fraud control and is extending those uses while testing more agent-style AI. JPMorgan’s LLM Suite provides a secure internal platform where employees can query models, review documents and draft specifications. “It allows all of our employees to have experience with this technology and to figure out how to change their operating models,” he added.

Haus highlighted the engineering work needed to put AI features into production: strong architecture, reliable pipelines and fast vulnerability remediation. He said those practices make it possible to add new platforms and features while maintaining security and privacy.

He watches early-stage technologies such as quantum computing and said the CIO role now includes moving the organization from supplying physical technology to enabling transformation through software and data. Reflecting on the job’s pressures, Haus noted that enthusiasm for the work helps teams handle production incidents and difficult days. “The reason why my excitement matters is that there are going to be bad days,” he said.