POWER OF ATTORNEY

With respect to holdings of and transactions in securities issued by
BigCommerce Holdings, Inc. (the "Company"), the undersigned hereby constitutes
and appoints the individuals named on Schedule A attached hereto and as may
be amended from time to time, or any of them signing singly, with full power
of substitution and resubstitution, to act as the undersigned's true and lawful
attorney-in-fact to:

1. prepare, execute in the undersigned's name and on the undersigned's
behalf, and submit to the United States Securities and Exchange Commission
the "SEC") a Form ID, including amendments thereto, and any other documents
necessary or appropriate to obtain and/or regenerate codes and passwords
enabling the undersigned to make electronic filings with the SEC of reports
required by Section 16(a) of the Securities Exchange Act of 1934, as amended,
or any rule or regulation of the SEC;

2. execute for and on behalf of the undersigned, Forms 3, 4, and 5 in
accordance with Section 16 of the Securities Exchange Act of 1934, as amended,
and the rules thereunder;

3. do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Form 3, 4, or 5,
complete and execute any amendment or amendments thereto, and timely file such
form with the SEC and any stock exchange or similar authority; and

4. take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorney-in? fact may approve
in such attorney-in-facts discretion.

The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and
powers herein granted, as fully to all intents and purposes as the undersigned
might or could do if personally present, with full power of substitution and
resubstitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorneys-in-fact substitute or substitutes, shall
lawfully do or cause to be done by virtue of this Power of Attorney and the
rights and powers herein granted.

The undersigned acknowledges that the foregoing attorneys-in-fact, in serving
in such capacity at the request of the undersigned, are not assuming, nor is
any Company assuming, any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934, as amended.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4, and 5 with respect to
the undersigned's holdings of and transactions in securities issued by the
Company, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 22 day May of 2024.

By:   /s/ Christopher Travis Hess
Name: Christopher Travis Hess

SCHEDULE A

Individuals Appointed as Attorney-in-Fact with Full Power of Substitution
and Resubstitution

1. Daniel Lentz
2. Charles D. Cassidy
3. Justin Bowes