Document:

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                                                                   Exhibit 10.24

                                  [LETTERHEAD]

                                                                     GENE W. RAY
                                                                       PRESIDENT
                                                         CHIEF EXECUTIVE OFFICER

September 30, 1999

Mr. Larry Oberkfell
Six Apple Creek Court
Appleton, WI 54915

Dear Larry:

I am pleased to offer you the position of Senior Vice President of The Titan
Corporation and President and CEO of Titan Scan. You will have responsibility
for building both our food pasteurization and medical sterilization businesses.
I am confident that you will make a significant contribution to the growth and
success of this business. I am also confident that you will be provided with a
challenging and gratifying work environment conducive to the development and
fulfillment of your professional objectives.

Your annual salary will be $29,166.66 per month, and we are offering you 40,000
shares of Titan stock under our Stock Option Plan. We would also like to offer
you 200,000 shares on option in Titan Scan. In all instances, the stock option
plans call for vesting of 25% per year beginning on your hire date. The strike
price for the Titan Corporation options will be the closing price of Titan's
stock on your hire date, and the strike price for Titan Scan stock options will
be at $1.34/share.

In addition, you will receive supplemental compensation (car allowance) of
$600.00 per month. As a member of Titan's Executive Bonus Plan, you will have
the opportunity to earn up to 75% of your salary (up to 60% by meeting a plan
you develop and we mutually agree upon, and by assisting Titan in meeting the
Corporate plan as well as meeting your individual objectives -- you can earn up
to 15% for exceeding the Scan plan.)

You will also be eligible to participate in Titan's Executive Deferred
Compensation Plan. This plan allows you to make up to a 10% contribution that
will be matched by the Company. An example of the potential return from our plan
is attached as Attachment 1. (Please note that an arbitrary bonus was assumed
since it does not affect this plan).

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Also, Titan will cover normal moving expenses as outlined in Attachment II.
However, to assist you with the disposition of your primary residence in
Appleton, Wisconsin we are prepared to do the following:

-        Provide a guaranteed buyout through a relocation management firm.
-        Establish the value of your primary residence via appraisals
         immediately upon acceptance of this offer of employment.
-        Make the established equity in the present home available to close the
         purchase of a new primary residence in the San Diego area within a
         reasonable time frame prior to close or upon the close of the sale of
         the Appleton residence, whichever is sooner.

Titan has an excellent fringe benefit package including medical and dental
plans, life insurance, 401(k) Retirement plan, and paid time off policy.

It is my understanding that upon leaving your current position, you would be
walking away from approximately $375,000 of deferred bonus compensation. To
compensate for this, we would like to offer you a $375,000 loan that would be
forgiven over approximately a five year timeframe. The first increment of
forgiveness (principle and interest) would be December 31, 2000. Interest will
be accrued at 8%, however both principle and interest will be forgiven as long
as you remain a Titan employee, or unless you are terminated for cause. The
remaining four increments would be forgiven in order at the end of the
subsequent four years. If you decide to leave Titan voluntarily, or should you
be terminated for cause, then the remainder of the loan would be due and
payable. Additionally, at your discretion, up to $100,000 could be obtained in
the form of a bonus in February 2000, and the remainder would be treated as a
loan as described above.

Larry, I look forward to welcoming you as a member of the Titan team and trust
that it will be a mutually beneficial association. If you concur, we would like
you to begin work as soon as is mutually agreeable.

Sincerely,

/s/ Gene W. Ray
Gene W. Ray

OFFER ACCEPTED: /s/ Larry Oberkfell            Date: 10/7/99
               ----------------------               ---------
               Larry Oberkfell

<PAGE>

                                  [LETTERHEAD]

                                                                     GENE W. RAY
                                                                       PRESIDENT
                                                         CHIEF EXECUTIVE OFFICER

October 18, 1999

Mr. Larry Oberkfell
Six Apple Creek Court
Appleton, WI 54915

Dear Larry:

Subsequent to our discussion on Sunday, October 17, 1999, this is an addendum to
the offer letter of September 30, 1999.

During your first two years of employment, if you are terminated for any reason
other than cause by The Titan Corporation, Titan will pay you a single lump sum
severance payment on the effective date of termination in an amount equal to one
years base salary. Cause for termination shall be deemed to exist only if you
are grossly negligent in the performance of material work duties assigned to
you. After the two year period, should you be terminated for any reason other
than cause, you will receive six months severance, payable in a single lump sum
payment on the effective date of termination, which is the customary policy for
Titan's Senior Executives.

Additionally, Titan will pay you an employment sign-on bonus of $30,000 payable
on your date of hire.

Larry, I look forward to speaking with you very soon.

Sincerely,

/s/ Gene W. Ray
Gene W. Ray<PAGE>

                                                                Exhibit 10.25

                             [LOGO]

July 14, 1999                                           Eric M. DeMarco
                                                   EXECUTIVE VICE PRESIDENT
                                                    CHIEF FINANCIAL OFFICER
Kevin Claudio
14405 Seabridge Lane
San Diego, CA 92128

Kevin,

I am pleased to offer you the position of Director of Business Operations,
reporting directly to me. I am confident that you will make a significant
contribution to the growth and progress of the Titan Corporation. I believe
you will be provided with a challenging and gratifying work environment
conducive to the development and fulfillment of your professional objectives.

Your annual salary will be $129,000 and, subject to the approval of the Board
of Directors, we would like to offer you 30,000 shares of Titan stock under
our key employee Stock Option Plan. As part of Titan's Management by
Objective Bonus Plan you will have the opportunity to earn up to 25% of your
salary by achieving the planned profits and cash flow for Titan and by
meeting your individual objectives. Additionally, you will receive a car
allowance of $300 per month. Finally, if during your first year of employment
you are terminated for any reason other than cause you will receive 12 months
of salary as severance. If during your second year of employment you are
terminated for any reason other than cause you will receive 6 months salary.

Titan has an excellent fringe benefit package including medical, dental and
vision plans, life insurance, 401K retirement plan, and paid time off policy.
Paid Time Off (PTO) for you will start at 160 hours, plus holidays. As part
of Titan's effort to maintain a drug free workplace, you will be required to
complete a drug screen following acceptance of this offer. This offer is
contingent upon completion of the drug screen and negative test results.
Please understand that your acceptance of this offer does not constitute the
creation of a contract of employment. This letter is a statement of Titan's
desire to employ you with the understanding that your employment may be
discontinued at the will of either party by notice to the other. This letter
supersedes any prior verbal representations which may have been made to you.

Kevin, I look forward to welcoming you as a member of the Titan team and
trust that it will be mutually beneficial association. If you concur, we
would like you to begin work as soon as is practical, preferably on Monday,
August 2, 1999.

Sincerely,

/s/ Eric DeMarco

Eric M. DeMarco
Executive Vice President
Chief Financial Officer

Offer Accepted:    /s/ [ILLEGIBLE]                Date:   7/14/99
               -----------------------------           -------------------

                3033 SCIENCE PARK ROAD, SAN DIEGO, CALIFORNIA 92121
                       (619) 552-9556 -- FAX (619) 552-9651<PAGE>

March 27, 2000

Larry Kessler
1520 Floribunda Avenue
Burlingame, CA  94010

Dear Larry:

We are pleased to extend to you an offer of employment as Executive Vice
President, World Wide Sales and Marketing of TeleTech Holdings Inc. The position
will be located at our corporate office in Denver, Colorado. You will start no
later than April 3, 2000 and will report to Scott Thompson, Chief Executive
Officer and President. Your annual base salary will be $300,000 with a target
annual bonus opportunity of 100% of your base. Your bonus will be based upon
both TeleTech performance and your individual achievement of MBO goals to be set
jointly by yourself and Scott. For 2000 100% of your annual bonus will be
guaranteed.

You will receive vacation as per TeleTech's policy, which is accrued each pay
period to a maximum of four (4) weeks per year. You will be eligible for
TeleTech's executive medical and dental insurance, as well as a term Life
Insurance policy in the amount of $4,000,000 on your start date (subject to
standard physical exam). You will be eligible for a Long-Term Disability policy
that provides 50% of your base salary and annual bonus (calculated at 80%) on
the 91st day of your disability. Eligibility for the 401(k) plan begins during
the enrollment period following six (6) months of service. You will be eligible
to participate in the Employee Stock Purchase Plan during the enrollment period
following three (3) months of service.

In addition TeleTech will pay you the sum of $100,000 as a signing bonus within
30 days of your start date. If you voluntarily leave TeleTech within the first
eighteen months of employment this sum will be repayable to TeleTech on a
pro-rata basis.

TeleTech will reimburse all necessary and reasonable relocation expenses, up to
$150,000. This will include temporary living, residential closing and commission
costs on the sale of your home, closing costs on your new home, as well as
expenses incurred travelling back and forth from Burlingame, CA to Denver, CO.
All taxable relocation reimbursements will be grossed-up. Relocation expenses
need to be approved in advance. If you voluntarily leave TeleTech within the
first eighteen months of employment this sum will be repayable to TeleTech on a
pro-rata basis.

TeleTech requires all employees to acknowledge the terms and conditions of their
employment by signing agreements regarding at-will employment, arbitration,
confidentiality, non-competition, non-disclosure, trade secrets, and invention
protection. These agreements will be provided by TeleTech and must be signed at
or before the start of your employment.
<PAGE>

Larry Kessler
March 27, 2000
Page 2 of 3

You will receive a sign on bonus of 250,000 stock options with an exercise price
equal to $30.8125. These options will vest in equal annual installments over
four (4) years.

You will be eligible to participate in a Management Stock Option Program, which
is designed to grant options at the end of each year. This is a discretionary
plan which awards options based upon personal achievements of business
objectives.

If you cease to be employed by TeleTech or any of its subsidiaries or affiliates
(collectively, the "SUBSIDIARIES") for any reason other than (i) for "Cause" (as
defined in TeleTech's 1999 Stock Option and Incentive Plan), (ii) your death, or
(iii) your mental, physical or emotional disability or condition, the Options
shall be exercisable at any time prior to the date three months after the date
of termination of your employment.

Your option agreements will also provide that upon a "Change of Control" any
unvested portion of the options that are scheduled to vest within 24 months
following the date the Change of Control becomes effective shall vest and become
immediately exercisable as of the effective date of the Change of Control. If
your employment is terminated other than "For Cause" (as defined in TeleTech's
1999 Stock Option and Incentive Plan) within 24 months following a Change of
Control, 100% of your options will become immediately exercisable.

If your employment is terminated by TeleTech within the first two years of
employment, other than for "Cause," or your position or salary materially
changes (you shall receive (upon condition of executing and delivering a legal
release in a form satisfactory to TeleTech), a payment of 18 months of your
on-target earnings (base salary plus annual bonus) and the accelerated vesting
of any unvested options that would otherwise have vested at the next vesting
date under your option agreements.

This offer is in effect until 5 PM MST March 30, 2000 and is contingent upon
your successful clearance of TeleTech's reference, background and drug screens.

I'd like to personally welcome you to TeleTech. We look forward to working with
you.

Sincerely,

/s/ David Gilbert
-------------------
David Gilbert
Vice President, Corporate Recruiting

DG/gj

<PAGE>

Larry Kessler
March 27, 2000
Page 3 of 3

Please execute two copies of this Agreement, return the original to me and
retain one for your files.

I agree to the terms and conditions of this offer of employment and will begin
working as Executive Vice President, World Wide Sales and Marketing of TeleTech
Holdings Inc. on April 3, 2000 in our Denver office.

Signed: /s/ Larry Kessler
       --------------------------------

Date: 03/27/00

This offer is extended dependent upon reference checking, passing a drug test,
presentation of appropriate documentation to meet current Immigration and
Naturalization requirements, and the receipt of a signed
Non-Disclosure/Non-Compete Agreement. UPON YOUR ARRIVAL, A SOCIAL SECURITY CARD
AND ONE OF THE FOLLOWING DOCUMENTS IS REQUIRED: A VALID DRIVER'S LICENSE, ID
CARD, ORIGINAL OR CERTIFIED COPY OF BIRTH CERTIFICATE, CURRENT INS EMPLOYMENT
AUTHORIZATION, VALID U.S. PASSPORT, OR CERTIFICATE OF NATURALIZATION.

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