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Compensation 990 is an independent service that uses public IRS Form 990 filings as its source data. We clean and standardize this information, but the original filings may contain errors or omissions. Years on this site refer to the organization’s fiscal year end date on the filing.

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Employees Public Library of Science Matthew Valdez

Matthew Valdez

Highest compensated employee

PRIN SW Engineer, Platform and ENG at Public Library of Science

Fiscal year ended December 31, 2024. Published on January 25, 2026.

$231,548
2024

Total compensation

Matthew Valdez has been listed as an employee of Public Library of Science in Form 990 filings since fiscal year 2022. Total compensation for Matthew Valdez has increased by 6.5% from 2022 to 2024.

Annual compensation details

$231,548
+6.1%
PRIN SW Engineer, Platform and ENG
2024
$203k
40 hrs/wk
$30k
--
$218,203
+0.4%
PRIN SW Engineer, Platform and ENG
2023
$191k
40 hrs/wk
$28k
--
$217,339
Principal Software Engineer, Platform and ENG
2022
$190k
40 hrs/wk
$28k
--

Total compensation by year

Compare the compensation of Matthew Valdez to:

2024

Other employees at Public Library of Science

Alison Mudditt
Chief Executive Officer
$543,320
$502,639 No related comp$40,681
Rebekah Darksmith
Chief of Staff and Chief Marketing and Communicati
$349,922
$311,457 No related comp$38,465
Veronique Kiermer
Publisher and EXEC Editor
$340,302
$314,457 No related comp$25,845
Kathryn Motonaga
Chief Financial Officer
$330,113
$298,202 No related comp$31,911
Tom Scott
Chief Digital Officer
$247,930
$203,890 No related comp$44,040
Sandra Upegui
GEN Counsel and Corporate Secretary
$229,900
$209,897 No related comp$20,003
James Harney
Senior Manager, Strategic Research
$217,517
$208,987 No related comp$8,530
Jaya Dobbyn
Controller (Thru 04/24)
$213,102
$200,535 No related comp$12,567
Niamh O'Connor
Chief Publishing Officer
$210,524
$204,320 No related comp$6,204
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Revisions to this profile

January 25, 2026:
2024 Public Library of Science 990 published
January 25, 2026:
2023 Public Library of Science 990 published
January 25, 2026:
2022 Public Library of Science 990 published

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