Exhibit 99.1 Grid Dynamics Reports Fourth Quarter and Full Year 2023 Financial Results Fourth Quarter Revenue of $78.1 million and Full Year Revenue of$312.9 million San Ramon Calif. – February 22, 2024 – Grid Dynamics Holdings, Inc. (NASDAQ: GDYN) (“Grid Dynamics”, “the Company”), a leader in enterprise-level digital transformation, today announced results for its fourth quarter and full year ended December 31, 2023. We are very pleased to report revenue of $78.1 million in the fourth quarter 2023 that wa ...