POWER OF ATTORNEY
Known by all those present, that Stephen P. Earhart hereby constitutes
and appoints each of Raoul K. Maitra, Steven M. Rivkin, and Brian Gayle as his
true and lawful attorneys-in-fact with respect to Altair Engineering Inc. to:
(1) prepare, execute in the undersigned's name and on the undersigned's
behalf, and submit to the U.S. Securities and Exchange Commission (the
"SEC") a Form ID, including amendments thereto, and any other documents
necessary or appropriate to obtain 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 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 16(a) of the Securities Exchange Act of 1934 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
Forms 3, 4, and 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-
fact's 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 or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's designated 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 any of the undersigned's responsibilities
to comply with Section 16 of the Securities Exchange Act of 1934, as amended,
and the rules thereunder.
This Power of Attorney shall remain in full force and effect until
revoked by the undersigned in a signed writing delivered to the each foregoing
attorney-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 17th day of October, 2017.
/s/ Stephen P. Earhart
--------------------------
Name: Stephen P. Earhart
Sworn and subscribed before me on October 17, 2017 by Stephen P. Earhart.
/s/ Stephanie M. Roehrig
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Stephanie M. Roehrig, Notary Public
Oakland County, Michigan
My Commission Expires: October 4, 2021
Acting in Oakland County
