Power of Attorney for Lukasz Strozek

This filing documents a Power of Attorney granted by Lukasz Strozek, Chief Technology Officer of Marqeta, Inc., to Lisa Beth Lentini Walker, Christine Paster, James Edmonds, and Tracy Foard. The attorneys-in-fact are authorized to complete and execute all necessary Section 16 forms (3, 4, and 5) and amendments related to the undersigned's ownership, acquisition, or disposition of Marqeta, Inc. securities. They are also empowered to file these forms with the SEC and other relevant entities, and to serve as EDGAR account administrators. This Power of Attorney remains effective until Strozek is no longer required to file such forms, unless revoked in writing. The document clarifies that neither the attorneys-in-fact nor the Company assume Strozek's compliance responsibilities under Section 16.