Dallas-based NexBank announced two executive-level promotions in December.

Rhett Miller has been promoted to chief banking officer. He has served as chief credit officer since joining the bank in 2013. In his new role, he will be responsible for the institutional and commercial banking divisions. Miller will retain oversight of the bank’s credit-related activities and continue to serve as a member of the investment, finance, credit and enterprise risk management committees.

Miller has more than 40 years of experience in the banking, corporate finance and commercial real estate industries. He joined NexBank from Southwest Securities FSB, where he was senior vice president and manager of special assets.

Brian Ralston has been promoted to executive vice president/chief mortgage banking officer. He has served at the bank as senior vice president of mortgage banking since 2013. In his new role, he will lead the strategic direction of the mortgage banking division and continue to be responsible for all origination and servicing operations of the wholesale, non-delegated and delegated correspondent channels, and warehouse lending.

Ralston has nearly 20 years of experience in mortgage banking. He is actively involved in the industry and has served as a speaker and panelist at conferences covering wholesale, correspondent and warehouse lending. He is also president of NexBank Title Inc. and helped to establish the company’s title services business.

NexBank is the largest privately held bank based in Texas with assets of $13.9 billion and a charter that dates to 1922.