Wikimedia UK Tech Stack

UK chapter supporting Wikipedia editors and cultural institution partnerships

Online Audio and Video Media London, England 11–50 employees Founded 2008 Nonprofit

Wikimedia UK runs the UK's chapter of Wikipedia and the Wikimedia ecosystem, operating a legacy MediaWiki + MariaDB + MySQL infrastructure at significant scale. The hiring acceleration (5 roles in 30 days across engineering, product, and data) reflects internal pressure: active projects span database reliability, backup automation, and infrastructure planning, while pain points cluster around replication complexity, high-traffic database performance, and scaling — suggesting the nonprofit is hitting operational limits as traffic and volunteer contributor base grow.

Tech Stack 11 technologies

Core StackMariaDB MySQL Linux Hadoop PHP JavaScript AWS Kafka SQL Hive MediaWiki

What Wikimedia UK Is Building

◆Challenges

Complex replication topologies at scale
High traffic and highly available website architectures
Availability and performance
Timely delivery of accurate data
Consistent reporting
Scaling database infrastructure
High traffic database performance
Attracting new contributors
Securing new partnerships
Protecting against platform attacks

▲Active Projects

Automation of common database management workflows
Reliable generation and timely restoration of database backups
Capacity and infrastructure planning
Build and maintain data products for experiment platform
Improve experimentation and measurement best practices
Structured volunteering programs
Content challenges
Contributor experience strategy
New security features for wikipedia
Modern authentication technology support

Hiring Activity

Accelerating6 roles · 5 in 30d

Department

Engineering

Product

Data

Seniority

Senior

Staff

Manager

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About Wikimedia UK

Wikimedia UK is a nonprofit chapter serving Wikipedia editors and contributors across the United Kingdom. The organization hosts edit-a-thons, training sessions, and cultural partnerships (GLAM partnerships) with museums, libraries, and cultural institutions to expand and improve Wikipedia content. It also runs expert outreach to scholars and academics, manages education initiatives, and offers membership and grant programs to support volunteer editors. The chapter operates infrastructure inherited from the Wikimedia Foundation's MediaWiki platform, which runs on a complex database stack handling high traffic and availability requirements.

HeadquartersLondon, England

Company Size11–50 employees

Founded2008

Hiring MarketsUnited Kingdom

Frequently Asked Questions

What technology does Wikimedia UK use?

The organization operates MariaDB, MySQL, MediaWiki, Linux, and AWS. The stack also includes PHP, JavaScript, Kafka, Hadoop, and Hive for data processing and analytics.

What infrastructure challenges is Wikimedia UK addressing?

Active projects include database backup automation, capacity planning, replication topology management, and improving database performance under high traffic — all addressing documented pain points around scaling and availability.