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                                                                   EXHIBIT 10.22

[15 YEARS OF EXCELLENCE LOGO]               [ASYST LOGO]

                                                     ASYST TECHNOLOGIES, INC.
                                                     48761 KATO ROAD
                                                     FREMONT, CA 94538

                                                     TEL: 510.661.5000
                                                     FAX: 510.661.5166
March 22, 2000

James C. Mitchener, Ph.D.                                          CONFIDENTIAL
214 Nottingham Place
Danville, CA 94506

Dear Jim,

I am pleased to formally offer you the opportunity to join Asyst as an Officer
of the company, in the position of Senior Vice President of Global Marketing
Operations, reporting to me. This position is of strategic importance to the
shareholders and employees of Asyst, and as a key leader of Asyst, you will be
responsible for optimizing the marketing performance of Asyst.

During the first few months of your employment, you will participate with your
peers, others and me in the detailed assessment of Asyst's strategy, processes,
organization, and resources. In addition, you will take leadership in the
development of key marketing strategies and implementation plans. These plans
will serve as a basis for your personal objectives, which will be mutually
agreed upon during the first thirty (30) days of your employment with Asyst.

Below outlines the compensation package Asyst is pleased to offer you:

1.    Base Salary: Your base salary will be $8,653.85 per pay period (26 pay
      -----------
      periods), which calculates to $225,000 on all annual basis.

2.    Management Bonus Plan: You will be eligible to participate in an
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      annualized performance- based bonus plan for Fiscal Year 2001, which will
      have a targeted payout of $120,000 at 100% achievement of company and
      individual objectives. The bonus plan will be structured in such a way
      that should you exceed plan, your bonus payout will be greater than the
      targeted bonus noted above. It is anticipated that the final design of
      this Plan will be approved and implemented during the month of April.

3.    Equity: Additionally, Asyst offers you an option to purchase 125,000
      ------
      shares of company stock. This option begins vesting six months after your
      date of hire, and continues vesting at a rate of 1/42 per month of
      employment with the Company, for forty-two (42) months, such that at the
      end of forty-eight (48) months of employment the option shall become fully
      exercisable. However, the option, the vesting schedule and the price per
      share of this option are subject to final approval by the Board of
      Directors.

4.    Performance Accelerated Stock Option Grant (PASOG): Asyst offers you a
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      150,000 option grant. This option has a term of six (6) years and three
      (3) months from date of grant. The option will vest on the sixth (6th)
      anniversary of the grant or upon the successful achievement of mutually
      agreed to performance objectives. The Asyst Board of Directors will assess
      your performance against these objectives. It is anticipated that an
      appropriate fraction of PASOG would be immediately vested upon successful
                                             -----------
      completion of specific objectives, and it is anticipated that the PASOG
      could all be vested within three years if all of the objectives were
      achieved within that time period.
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James C. Mitchener, Ph.D.                                         [ASYST LOGO]
March 22, 2000
Page 2

5.    Car Allowance: As an executive of Asyst, you will be eligible for a car
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      allowance of $500.00 per month.

6.    Sign-On Bonus: There is a great deal to be done, and I would like you to
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      join the team as soon as possible. As an added incentive, Asyst is
      offering you a sign-on bonus in the amount of $60,000, if your start date
      is on or before Monday, April 10, 2000. This bonus amount would be paid in
      two parts: $30,000 payable in your second paycheck in May 2000, and
      $30,000 payable in your second paycheck in July 2000. Both payouts would
      be subject to standard deductions and withholdings. It is agreed that
      should you voluntarily leave Asyst within the first two years of
      employment, you would be required to reimburse 100% of this bonus to
      Asyst.

7.    Core Benefits: Asyst offers a very competitive benefits package, which
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      will be effective as of your date of hire. A brief summary of those
      benefits is attached for your review. Please note that if an employee
      requests medical and dental coverage for dependents, the employee is
      required to pay 20% of the dependent premium. Also, there is a 40l(k) Plan
      and Executive Deferred Compensation Plan available for tax-deferred income
      and investment options. It is understood that all benefits are subject to
      change without prior notification.

8.    Severance Agreement: Asyst is extending to you a special severance that
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      will guarantee you twelve (12) months of your base salary, within the
      first two (2) years of service, if Asyst terminated your employment for
      any reason, other than for "cause" and/or poor performance. Over twenty-
      four (24) months of service, if at any time Asyst terminated your
      employment for any reason, other than for "cause" and/or poor performance,
      Asyst will guarantee you six (6) months of your base salary.

Jim, I am very optimistic that your contributions will play a significant part
in the long-term success of Asyst. I hope that this offer meets with your
expectations, and that your joining Asyst will provide you with personal,
professional and financial returns in line with our mutual growth and successes.

Sincerely yours,

/s/ Mihir Parikh
Mihir Parikh
Chairman & CEO

AGREED AND ACCEPTED:

/s/ James C. Mitchener              03/28/00
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James C. Mitchener, Ph.D.           (Date)<PAGE>

                                                                   Exhibit 10.16

                                 May 19, 2000

Sujata Luther
436  27th Street
Manhattan Beach, CA 90266

  Re:   Employment Agreement

Dear Sujata:

  Pursuant to our recent discussions, this Agreement confirms the terms of your
employment with Brio Technology, Inc. (the "Company") as well as our
understanding with respect to any termination of that employment relationship.
This Agreement is contingent upon the successful completion of the Company's
investigation concerning your background.

  1.  Position.   You will be employed by the Company as its Executive Vice
      --------
President of Marketing, and you will report to Yorgen Edholm, the Company's
President and Chief Executive Officer.  You accept employment with the Company
on the terms and conditions set forth in this Agreement, and you agree to devote
your full business time, energy and skill to your duties at the Company.

  2.  Term of Employment.   Your employment with the Company will start on June
      ------------------
12, 2000, will be for no specified term, and may be terminated by you or the
Company at any time, with or without cause, subject to the provisions of
Paragraphs 4 and 5 below.

  3.  Compensation.   You will be compensated by the Company for your services
      ------------
as follows:

      (a)  Salary: You will be paid a monthly salary of $20,833.33, less
           ------
applicable withholding, in accordance with the Company's normal payroll
procedures. Your salary will be reviewed by the Company from time to time (but
no more frequently than annually), and may be subject to adjustment based upon
various factors including, but not limited to, your performance and the
Company's profitability.

      (b)  Bonus Plan: You will participate in the Company's Executive Vice
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President Bonus Plan and you will be eligible to receive annual bonuses of up to
$60,000 pursuant to that plan based upon the Company's achievement of various
financial and/or other goals (75%) and your achievement of specific MBO's (25%).
Bonuses are paid quarterly, and are subject to applicable withholding.

      (c)  Fringe Benefits: You will have the right, on the same basis as other
           ---------------
executive vice presidents at the Company, to participate in and to receive
benefits under the Company's group health and dental insurance plans, as well as
under the Company's 401(k) and Employee Stock Purchase Plans. You will also
accrue paid time off in accordance with the Company's PTO policy.
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Sujata Luther
May 19, 2000
Page 2

      (d)  Stock Option: Subject to the approval of the Company's Board of
           ------------
Directors (the "Board"), you will be granted an option to purchase 100,000
shares of the Company's common stock at an exercise price equal to the fair
market value of that stock on the option grant date. Provided you remain
employed by the Company, this option will vest over a four-year period, with
25,000 shares vesting on the first anniversary of the start of your employment,
and 1/48 of the shares vesting each month thereafter. Your option will be
governed by and subject to the terms and conditions of the Company's standard
form of stock option agreement, which you will be required to sign in connection
with the issuance of your option.

      (e)  Signing Bonus: On the date you start your employment with the
           -------------
Company, the Company will pay you a one-time signing bonus of $100,000, less
applicable withholding. If your employment terminates for any reason within one
year following your start date, you agree that you will immediately repay the
Company the entire signing bonus ($100,000); provided, that such repayment
amount will be reduced by $16,666.66 for each full month that you work for the
Company beyond six months. (For example, if you work seven full months for the
Company, the repayment amount will be $83,333.34.)

      (f)  Relocation Expense Advance: On the date you start your employment
           --------------------------
with the Company, the Company will provide you with $25,000 as an advance
against your reasonable relocation expenses. You agree to provide the Company
with appropriate receipts and other documentation establishing the amount of
such expenses, and to promptly reimburse the Company for any portion of this
advance that you do not use to pay relocation expenses. If your employment
terminates for any reason within one year following your start date, you agree
that you will immediately repay the Company the entire expense advance;
provided, that such repayment will be reduced by $4,166.66 for each full month
that you work for the Company beyond six months.

      (g)  Loan: Subject to the Board's approval, the Company will loan you
           ----
money to pay the down payment and associated closing costs for the purchase of a
home in the Bay Area. The loan will bear interest at the prevailing market rate
interest, and will be secured as agreed by you and the Company. The loan will
become due and payable in full upon the earlier of (i) the sale of your home in
Manhattan Beach, (b) three months after the start of your employment with the
Company, or (c) the termination of your employment with the Company for any
reason. The loan will be subject to your execution of an appropriate promissory
note, security agreement and any other necessary documentation.

  4.  Voluntary Termination.   In the event that you resign from your employment
      ---------------------
with the Company, or in the event that your employment terminates as a result of
your death or disability (meaning that you are unable to perform your duties for
any 90 days in any one year period as a result of a physical and/or mental
impairment), you will be entitled to no compensation or benefits from the
Company other than those earned under Paragraph 3 through the date of your
termination.  You agree that if you resign from your employment with the Company
for any reason, you will provide the Company with 30 days' written notice of
your resignation.  The Company may, in its sole discretion, elect to waive all
or any part of such notice period and accept your resignation at an earlier
date.
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Sujata Luther
May 19, 2000
Page 3

  5.  Other Termination.   Your employment may be terminated under the
      -----------------
circumstances set forth below.

      (a)  Termination for Cause: If your employment is terminated by the
           ---------------------
Company for cause as defined below, you shall be entitled to no compensation or
benefits from the Company other than those earned under Paragraph 3 through the
date of your termination for cause.

  For purposes of this Agreement, a termination "for cause" occurs if you are
terminated for any of the following reasons:  (i) theft, dishonesty, misconduct
or falsification of any employment or Company records; (ii) improper disclosure
of the Company's confidential or proprietary information; (iii) any action by
you which has a material detrimental effect on the Company's reputation or
business; (iv) your failure or inability to perform any assigned duties after
written notice from the Company to you of, and a reasonable opportunity to cure,
such failure or inability; or (v) your conviction (including any plea of guilty
or no contest) for any criminal act that impairs your ability to perform your
duties under this Agreement.

      (b)  Termination Without Cause:   If your employment is terminated by the
           -------------------------
Company without cause (and not as a result of your death or disability), and if
you sign a general release of known and unknown claims in form satisfactory to
the Company, you will receive a lump sum severance payment equal to three
months' base salary at your final base salary rate, less applicable withholding.

  6.  Confidential and Proprietary Information.   As a condition of your
      ----------------------------------------
employment, you agree to sign the Company's standard form of employee
confidentiality and assignment of inventions agreement.

  7.  Dispute Resolution.   In the event of any dispute or claim relating to or
      ------------------
arising out of your employment relationship with the Company, this Agreement, or
the termination of your employment with the Company for any reason (including,
but not limited to, any claims of breach of contract, wrongful termination or
age, sex, race, national origin, disability or other discrimination or
harassment), you and the Company agree that all such disputes shall be fully,
finally and exclusively resolved by binding arbitration conducted by the
American Arbitration Association in Santa Clara County, California.  You and the
Company hereby knowingly and willingly waive your respective rights to have any
such disputes or claims tried to a judge or jury.  Provided, however, that this
arbitration provision shall not apply to any claims for injunctive relief.

  8.  Assignment.   In view of the personal nature of the services to be
      ----------
performed under this Agreement by you, you cannot assign or transfer any of your
obligations under this Agreement.

  9.  Entire Agreement.   This Agreement and the agreements referred to above
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constitute the entire agreement between you and the Company regarding the terms
and conditions of your employment, and they supersede all prior negotiations,
representations or agreements between you and the Company regarding your
employment, whether written or oral.
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Sujata Luther
May 19, 2000
Page 4

  10. Modification.   This Agreement may only be modified or amended by a
      ------------
supplemental written agreement signed by you and an authorized representative of
the Company.

  Sujata, we look forward to working with you at Brio Technology, Inc.  Please
sign and date this letter on the spaces provided below to acknowledge your
acceptance of the terms of this Agreement.

                                             Sincerely,

                                             Brio Technology, Inc.

                                             By: /s/ Tamara MacDuff
                                                -------------------------------

   I agree to and accept employment with Brio Technology, Inc. on the terms and
conditions set forth in this Agreement.

                                             /s/ Sujata Luther
  Date: May 31, 2000                         ----------------------------------
                                             Sujata Luther

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