1.
    
    I have reviewed this quarterly report of Callidus Software Inc. on Form 10-Q;2.
    
    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit
to state a material fact necessary to make the statements made, in light of the circumstances under
which such statements were made, not misleading with respect to the period covered by this report;3.
    
    Based on my knowledge, the financial statements, and other financial information included in this
report, fairly present in all material respects the financial condition, results of operations and
cash flows of the registrant as of, and for, the periods presented in this report;4.
    
    The registrants other certifying officer and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and
internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))
for the registrant and have:
 (a)
    
    Designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made known
to us by others within those entities, particularly during the
period in which this report is being prepared;(b)
    
    Designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under
our supervision, to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of financial
statements for external purposes in according with generally
accepted accounting principles;(c)
    
    Evaluated the effectiveness of the registrants disclosure controls
and procedures and presented in this report our conclusions about
the effectiveness of the disclosure controls and procedures, as of
the end of the period covered by this report based on such
evaluation; and(d)
    
    Disclosed in this report any change in the registrants internal
control over financial reporting that occurred during the
registrants most recent fiscal quarter (the registrants fourth
fiscal quarter in the case of the annual report) that has materially
affected, or is reasonably likely to materially affect, the
registrants internal control over financial reporting; and
 5.
    
    The registrants other certifying officer and I have disclosed, based on our most recent evaluation
of internal control over financial reporting, to the registrants auditors and the audit committee
of the registrants board of directors (or persons performing the equivalent functions):
 (a)
    
    All significant deficiencies and material weaknesses in the design
or operation of internal control over financial reporting which are
reasonably likely to adversely affect the registrants ability to
record, process, summarize and report financial information; and(b)
    
    Any fraud, whether or not material, that involves management or
other employees who have a significant role in the registrants
internal control over financial reporting.
 Date:   May 8, 2009
    /s/ LESLIE J. STRETCHLeslie J. StretchPresident and Chief Executive Officer




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1.
    
    I have reviewed this quarterly report of Callidus Software Inc. on Form 10-Q;2.
    
    Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state
a material fact necessary to make the statements made, in light of the circumstances under which such
statements were made, not misleading with respect to the period covered by this report;3.
    
    Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all material respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this report;4.
    
    The registrants other certifying officer and I are responsible for establishing and maintaining disclosure
controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over
financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
 (a)
    
    Designed such disclosure controls and procedures, or caused such disclosure
controls and procedures to be designed under our supervision, to ensure that
material information relating to the registrant, including its consolidated
subsidiaries, is made known to us by others within those entities,
particularly during the period in which this report is being prepared;(b)
    
    Designed such internal control over financial reporting, or caused such
internal control over financial reporting to be designed under our
supervision, to provide reasonable assurance regarding the reliability of
financial reporting and the preparation of financial statements for external
purposes in according with generally accepted accounting principles;(c)
    
    Evaluated the effectiveness of the registrants disclosure controls and
procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of
the period covered by this report based on such evaluation; and(d)
    
    Disclosed in this report any change in the registrants internal control
over financial reporting that occurred during the registrants most recent
fiscal quarter (the registrants fourth fiscal quarter in the case of the
annual report) that has materially affected, or is reasonably likely to
materially affect, the registrants internal control over financial
reporting; and
 5.
    
    The registrants other certifying officer and I have disclosed, based on our most recent evaluation of
internal control over financial reporting, to the registrants auditors and the audit committee of the
registrants board of directors (or persons performing the equivalent functions):
 (a)
    
    All significant deficiencies and material weaknesses in the design or
operation of internal control over financial reporting which are reasonably
likely to adversely affect the registrants ability to record, process,
summarize and report financial information; and(b)
    
    Any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrants internal control
over financial reporting.
 Date:   May 8, 2009
    /s/ RONALD J. FIORRonald J. FiorChief Financial Officer,
Senior Vice President, Finance and Operations