Exhibit 24.1

FIRST INTERNET BANCORP

Power of Attorney of Director

The undersigned director of First Internet Bancorp, an Indiana corporation (the “Company”), does hereby make, constitute and appoint David B. Becker and Kenneth J. Lovik, and either of them, the undersigned’s true and lawful attorneys‑in‑fact, with power of substitution, for the undersigned and in the undersigned’s name, place and stead, to sign and affix the undersigned’s name as such director and/or officer of said corporation to an Annual Report on Form 10-K for the fiscal year ended December 31, 2023 or other applicable form, and all amendments thereto, to be filed by the Company with the Securities and Exchange Commission, Washington, D.C., under the Securities Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys‑in‑fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned’s hand this 13th day of March, 2024.

/s/ Aasif Bade

Aasif Bade

Exhibit 24.1

FIRST INTERNET BANCORP

Power of Attorney of Director

The undersigned director of First Internet Bancorp, an Indiana corporation (the “Company”), does hereby make, constitute and appoint David B. Becker and Kenneth J. Lovik, and either of them, the undersigned’s true and lawful attorneys‑in‑fact, with power of substitution, for the undersigned and in the undersigned’s name, place and stead, to sign and affix the undersigned’s name as such director and/or officer of said corporation to an Annual Report on Form 10-K for the fiscal year ended December 31, 2023 or other applicable form, and all amendments thereto, to be filed by the Company with the Securities and Exchange Commission, Washington, D.C., under the Securities Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys‑in‑fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned’s hand this 13th day of March, 2024.

/s/ Justin P. Christian

Justin P. Christian

Exhibit 24.1

FIRST INTERNET BANCORP

Power of Attorney of Director

The undersigned director of First Internet Bancorp, an Indiana corporation (the “Company”), does hereby make, constitute and appoint David B. Becker and Kenneth J. Lovik, and either of them, the undersigned’s true and lawful attorneys‑in‑fact, with power of substitution, for the undersigned and in the undersigned’s name, place and stead, to sign and affix the undersigned’s name as such director and/or officer of said corporation to an Annual Report on Form 10-K for the fiscal year ended December 31, 2023 or other applicable form, and all amendments thereto, to be filed by the Company with the Securities and Exchange Commission, Washington, D.C., under the Securities Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys‑in‑fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned’s hand this 13th day of March, 2024.

/s/ Ann Colussi Dee

Ann Colussi Dee

Exhibit 24.1

FIRST INTERNET BANCORP

Power of Attorney of Director

The undersigned director of First Internet Bancorp, an Indiana corporation (the “Company”), does hereby make, constitute and appoint David B. Becker and Kenneth J. Lovik, and either of them, the undersigned’s true and lawful attorneys‑in‑fact, with power of substitution, for the undersigned and in the undersigned’s name, place and stead, to sign and affix the undersigned’s name as such director and/or officer of said corporation to an Annual Report on Form 10-K for the fiscal year ended December 31, 2023 or other applicable form, and all amendments thereto, to be filed by the Company with the Securities and Exchange Commission, Washington, D.C., under the Securities Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys‑in‑fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned’s hand this 13th day of March, 2024.

/s/ John K. Keach Jr.

John K. Keach Jr.

Exhibit 24.1

FIRST INTERNET BANCORP

Power of Attorney of Director

The undersigned director of First Internet Bancorp, an Indiana corporation (the “Company”), does hereby make, constitute and appoint David B. Becker and Kenneth J. Lovik, and either of them, the undersigned’s true and lawful attorneys‑in‑fact, with power of substitution, for the undersigned and in the undersigned’s name, place and stead, to sign and affix the undersigned’s name as such director and/or officer of said corporation to an Annual Report on Form 10-K for the fiscal year ended December 31, 2023 or other applicable form, and all amendments thereto, to be filed by the Company with the Securities and Exchange Commission, Washington, D.C., under the Securities Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys‑in‑fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned’s hand this 13th day of March, 2024.

/s/ Joseph A. Fenech

Joseph A. Fenech

Exhibit 24.1

FIRST INTERNET BANCORP

Power of Attorney of Director

The undersigned director of First Internet Bancorp, an Indiana corporation (the “Company”), does hereby make, constitute and appoint David B. Becker and Kenneth J. Lovik, and either of them, the undersigned’s true and lawful attorneys‑in‑fact, with power of substitution, for the undersigned and in the undersigned’s name, place and stead, to sign and affix the undersigned’s name as such director and/or officer of said corporation to an Annual Report on Form 10-K for the fiscal year ended December 31, 2023 or other applicable form, and all amendments thereto, to be filed by the Company with the Securities and Exchange Commission, Washington, D.C., under the Securities Act of 1934, as amended, with all exhibits thereto and other supporting documents, with said Commission, granting unto said attorneys‑in‑fact, and either of them, full power and authority to do and perform any and all acts necessary or incidental to the performance and execution of the powers herein expressly granted.

IN WITNESS WHEREOF, the undersigned has hereunto set the undersigned’s hand this 13th day of March, 2024.

/s/ Jean L. Wojtowicz

Jean L. Wojtowicz