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                                                                   Exhibit 10.32

June 5, 2006

Ms. Gwen Weld

Dear Gwen:

          It gives me great pleasure to offer you the position of Vice President
of Human Resources & Organizational Development for Isilon Systems, Inc.
("Isilon" or the "Company"). We believe that you will add substantially to the
team and contribute greatly to the ultimate success of the Company by providing
Isilon with the same extraordinary leadership that you have demonstrated
throughout your career. The Board of Directors, the existing Isilon team and I
look forward to you joining the Company and helping us build Isilon into one of
the most important companies driving the next generation of storage solutions.

          We understand and appreciate the nature of the commitment you are
making to join Isilon, and we want you to do so with great confidence. You have
the qualities that distinguish successful executives: leadership, high
integrity, intelligence, action-oriented, and a desire to make a difference. We
are extremely enthusiastic about your acceptance of this offer.

          The Company is pleased to offer you employment on the following terms:

POSITION

          You will become Vice President of Human Resources & Organizational
Development of the Company, working out of the Company's headquarters office in
Seattle, Washington. You will report to the Chief Financial Officer. By signing
this letter agreement, you confirm to the Company that you have no contractual
commitments or other legal obligations that would prohibit you from performing
your duties for the Company.

START DATE

          Subject to fulfillment of any condition imposed by this letter
agreement, you will begin this new position with the Company at a mutually
agreed upon date. The Company would like you to begin your employment at Isilon
no later than June 14, 2006.

PROOF OF RIGHT TO WORK

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          This offer of employment is contingent upon you presenting, in
accordance with applicable law, verification of your identity and your legal
right to work in the United States. In the event that you do not possess, or are
unable to obtain authorization to accept employment in the United States, our
offer of employment is withdrawn.

COMPENSATION

     -    BASE SALARY. You will be paid a monthly salary of $ 12,500, which is
          equivalent to $150,000 on an annual basis. Your salary will be payable
          in twenty-six equal payments, one payment every two weeks, pursuant to
          the Company's regular payroll policy and will be subject to applicable
          withholding taxes.

     -    BONUS: Upon successful achievement of mutually agreed upon Management
          by Objectives (MBOs), you will receive a quarterly bonus of $5,000 for
          a total compensation opportunity of $170,000 annually. These bonuses
          will be paid quarterly following each quarter in which the mutually
          agreed upon MBOs are achieved.

STOCK OPTIONS

     -    INITIAL OPTION GRANT. In connection with the commencement of your
          employment, the Company will recommend that the Board of Directors
          grant you an option to purchase 385,000 shares of the Company's Common
          Stock with an exercise price equal to the fair market value on the
          date of the grant. These option shares will vest at the rate of 25% of
          the shares on the twelve (12) month anniversary of your Vesting
          Commencement Date (which will be the date your full-time employment
          with the Company commences) and the remaining shares will vest monthly
          thereafter at the rate of 1/48 of the total number of shares per
          month. Vesting will, of course, depend on your continued employment
          with the Company. The option will be an incentive stock option to the
          maximum extent allowed by the tax code and will be subject to the
          terms of the Company's 2001 Stock Option Plan and the Stock Option
          Agreement between you and the Company.

     -    EARLY EXERCISE PROVISION. In connection with the commencement of your
          employment, the Company will recommend that the Board of Directors
          offer you the option of exercising your "Initial Option Grant", as
          described above, within 45 days of your option grant being approved by
          the Company's Board of Directors. Should you choose this early
          exercise elective:

               -    You will be required to pay the full cost of exercising your
                    options, to the Company, within 45 days of your option grant
                    being approved by the Company's Board of Directors.

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               -    Initially all of your exercised shares will be subject to
                    being repurchased by the company should your employment with
                    the company be terminated for any reason. On the twelve (12)
                    month anniversary of your Vesting Commencement Date (which
                    will be the date your full-time employment with the company
                    commences), 25% of your shares will be released from this
                    repurchase agreement and the remaining shares will be
                    released from this repurchase agreement at the rate of 1/48
                    of the total number of shares per month. Release of shares
                    from this repurchase agreement will, of course, depend on
                    your continued employment with the Company. Should the
                    Company exercise its option to repurchase your shares, the
                    Company will repurchase them at a price equivalent to your
                    original price per share.

               -    The early exercise agreement will impose restrictions on
                    unvested shares, including, but not limited to, limitations
                    on transfer, voting privileges, and escrow of unvested
                    shares.

     -    SUBSEQUENT OPTION GRANTS. At the discretion of the Company's Board of
          Directors, you may be eligible to receive additional grants of stock
          options or purchase rights from time to time in the future, on such
          terms and subject to such conditions as the Board of Directors shall
          determine as of the date of such grant.

BENEFITS

     -    INSURANCE BENEFITS. The Company will provide you with standard medical
          and dental insurance benefits according to Company policy.

     -    VACATION. You will be entitled to vacation according to Company
          policy.

PROPRIETARY INFORMATION AND INVENTIONS AGREEMENT

          Your acceptance of this offer and commencement of employment with the
Company is contingent upon the execution, and delivery to an officer of the
Company, of the Company's Proprietary Information and Invention Assignment
Agreement, a copy of which is enclosed for your review and execution (the
"Assignment Agreement"), prior to or on your Start Date.

AT-WILL EMPLOYMENT

          Your employment with the Company will be on an "at will" basis,
meaning that either you or the Company may terminate your employment at any time
for any reason or no reason, without further obligation or liability.

ACCEPTANCE

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          We are all delighted to be able to extend you this offer and look
forward to working with you. To indicate your acceptance of the Company's offer,
please sign and date this letter in the space provided below and return it to
me, along with a signed and dated copy of the Assignment Agreement, on or before
Friday, June 9, 2006 at 5:00 pm PST.

          This letter, together with the Assignment Agreement, set forth the
terms of your employment with the Company and supersedes any prior
representations or agreements, whether written or oral. This letter may not be
modified or amended except by a written agreement, signed by the Company and by
you.

                           [SIGNATURE PAGE TO FOLLOW]

                                        Very truly yours,

                                        ISILON SYSTEMS, INC.


                                        By: /s/ Steve Goldman
                                            ------------------------------------
                                            Steve Goldman
                                            President and CEO


ACCEPTED AND AGREED:

GWEN WELD


/s/ Gwen Weld
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Signature

6/7/06
Date

Enclosure A: Proprietary Information and Invention Assignment Agreement