Wikimedia Foundation
wikimediafoundation.org
Actively hiring
Nonprofits & Foundations
Q&A & Knowledge Platforms
As featured in
View 4 jobs
Follow
Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Overview
Wikimedia Foundation is the nonprofit organisation that hosts Wikipedia and the other Wikimedia free knowledge projects, including Wikimedia Commons and Wikidata. It runs their technical infrastructure, supports volunteer communities, funds grants and operates Wikimedia Enterprise, a paid data service for large reusers. It was established in 2003. The company is headquartered in San Francisco, California, United States.
News
Wikimedia Foundation links OpenAI's rogue bots to May outage
Wikimedia says rogue OpenAI agents edited wikis, probed Etherpad, and sent traffic that may have contributed to a partial outage in May.
Read more
Report
Wikimedia Foundation Workers Overwhelmingly Vote to Form Union with CWA
U.S. workers form first recognized unit as global union movement builds across Wikimedia Foundation
Read more
Report
Report
Report
Wikimedia Foundation announces new AI partnerships with Amazon, Meta, Microsoft, Perplexity, and others
The AI partnerships allow companies to access the org's content, like Wikipedia, at scale.
Read more
Report
Show more news
Tech stack
Technologies named in job postings at Wikimedia Foundation over the last 12 months, by layer, with the share of postings for each.
Technologies in use
69
Postings analysed
32
Stack modernity
69/100
Languages
PHP41%
JavaScript25%
Python25%
SQL9%
Frameworks & libraries
Flink9%
Jetpack Compose3%
OpenTelemetry3%
SwiftUI3%
Databases
Memcached6%
Presto6%
Redis6%
Apache Iceberg3%
Cloud & platforms
Wikipedia81%
Kubernetes22%
Apache Kafka13%
Grafana9%
Sign in to see how your skills match this stack
Sign In
Full Wikimedia Foundation tech stack
69 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$188k
Typical range
$84k – $220k
Open positions
6
6
Jobs
Intern
16.7%
Senior
33.3%
Staff
33.3%
Principal
16.7%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Intern | 1 | $84k | $84k |
| Senior | 2 | $156k | $138k – $173k |
| Staff | 2 | $205k | $203k – $207k |
| Principal | 1 | $220k | $220k |
Highest paying role
Principal, Executive Communications
$220k
Normalized to USD per year
All salaries at Wikimedia Foundation
By role, level and city, against the market · 6 jobs with pay
Growth
Hiring Momentum
72/100
Growing
Open positions
11
3 opened / 8 closed in 30 days
Median time-to-fill
62 days
faster than 21% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
+100%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
Backend
18% ▼
Mobile
9% ▲
Communications
9% ▲
Finance
9% ▲
Marketing
9% ▼
Data Science
5% ▲
Activity Timeline
Added UIKit to stack
Sep 2026
Added SwiftUI to stack
Sep 2026
Added Swift to stack
Sep 2026
Added Vue.js to stack
Sep 2026
Added TypeScript to stack
Sep 2026
Added AI Agents to stack
Sep 2026
Added Linux to stack
Sep 2026
Added Machine Learning to stack
Sep 2026
Added Edge AI to stack
Sep 2026
Added Druid to stack
Sep 2026
Added Apache Iceberg to stack
Sep 2026
Added Airflow to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
2
Hiring now
0
Countries
1
Loading the map
Headquarters
Builds here
Office with open vacancies
No open vacancies right now Tap a pin for the office
San Francisco
United States
HQ
San Francisco
Glendale
United States
Regional office
Requests to disclose user information (including emergency requests)
330 North Brand Boulevard, Glendale, California 91203-2336
Earlier presence
Washington, United States
Jobs
≈ $67k – $191k per year (Estimated) • Remote (United States, UTC hours) • Contractor • 5+ years exp • Bachelor's Degree
PHP
Kotlin
WordPress
Drupal
AI/ML
Prompt Engineering
AI Agents
Wikipedia
Machine Learning
Mobile
Jetpack Compose
Apply
$110k – $173k per year • Remote (United States, UTC hours)
Python
SQL
Druid
Apache Iceberg
Presto
AI/ML
Spark
Airflow
Edge AI
Wikipedia
Machine Learning
Analytics
A/B Testing
Superset
Apply
≈ $66k – $189k per year (Estimated) • Remote (United States, UTC hours) • Contractor • 5+ years exp • Bachelor's Degree
PHP
Swift
WordPress
Drupal
AI/ML
Prompt Engineering
AI Agents
Wikipedia
Machine Learning
Mobile
UIKit
SwiftUI
Apply
Apply
Financials
Total raised
$500k
Latest round
Venture - Series Unknown
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Venture - Series Unknown | 2017 | $500k | Details |