UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

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WIRELESS FACILITIES, INC.

(Name of Issuer)

COMMON STOCK, PAR VALUE $.001

(Title of Class of Securities)

97653A 10 3

(CUSIP Number)

December 31, 2002

(Date of Event Which Requires Filing of This Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

o

Rule 13d-1(b)

o

Rule 13d-1(c)

x

Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

CUSIP No. 97653A 10 3

1

NAME OF REPORTING PERSON
I.R.S. IDENTIFICATION NO(S) OF ABOVE PERSON(S) (ENTITIES ONLY)

MASOOD TAYEBI

2

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

(a)

(b)

3

SEC USE ONLY

4

CITIZENSHIP OR PLACE OF ORGANIZATION

United Kingdom

NUMBER OF
SHARES
BENEFICIALLY
OWNED BY
EACH
REPORTING
PERSON
WITH:

5

SOLE VOTING POWER

7,699,970

6

SHARED VOTING POWER

0

7

SOLE DISPOSITIVE POWER

7,699,970

8

SHARED DISPOSITIVE POWER

0

9

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

7,699,970

10

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*   x

11

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

15.8%

12

TYPE OF REPORTING PERSON*

IN

*SEE INSTRUCTION BEFORE FILLING OUT!

Item 1(a).

Name of Issuer:

Wireless Facilities, Inc.

Item 1(b).

Address of Issuer’s Principal Executive Offices:

4810 Eastgate Mall

San Diego, CA 92121

Item 2(a).

Name of Person Filing:

Masood Tayebi

Item 2(b).

Address of Principal Business Office or, if none, Residence:

4810 Eastgate Mall

San Diego, CA 92121

Item 2(c).

Citizenship:

United Kingdom

Item 2(d).

Title of Class of Securities:

Common Stock

Item 2(e).

CUSIP Number:

97653A 10 3

Item 3.

Not applicable.

Item 4.

Ownership.

(a)

Amount Beneficially Owned:

7,699,970¹

(b)

Percent of Class: 15.8%

(c)

Number of shares as to which such person has:

(i)

sole power to vote or to direct the vote: 7,699,970

(ii)

shared power to vote or to direct the vote: 0

(iii)

sole power to dispose or to direct the disposition of: 7,699,970

(iv)

shared power to dispose or to direct the disposition of: 0

¹  Does not include 404,693 shares held by the reporting person’s spouse, 2,000,000 shares held by the reporting person’s spouse as trustee of a revocable living trust, or 646,137 shares held by the reporting person’s spouse as trustee of a grantor retained annuity trust. The reporting person disclaims beneficial ownership of such shares.

Item 5.

Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following:   o

Item 6.

Ownership of More than Five Percent on Behalf of Another Person.

Not applicable.

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company.

Not applicable.

Item 8.

Identification and Classification of Members of the Group.

Not applicable.

Item 9.

Notice of Dissolution of Group.

Not applicable.

Item 10.

Certification.

Not applicable.

February 13, 2003

Date

/s/   MASOOD TAYEBI

Signature

Masood Tayebi

Name/Title