Jagex: The RuneScape Company Tech Stack

MMO developer scaling live-service games across PC and mobile

Computer Games Cambridge, Cambridgeshire 201–500 employees Privately Held

Jagex operates RuneScape and Old School RuneScape, two live MMOs with 300M+ player accounts and $1B lifetime franchise revenue. The tech stack spans C++, Unreal Engine 5, and Vulkan for client-side rendering, paired with Java backend and Snowflake/Tableau for analytics—a mature polyglot architecture built for sustained operations at scale. Active hiring is concentrated in engineering (6 roles) and design (3), with most positions at mid-level, signaling focus on execution velocity rather than leadership restructuring.

Tech Stack 52 technologies

Core StackC++ Python Java Jira Swift Kotlin Tableau Snowflake AWS Google Analytics Adobe Photoshop C# Power BI Figma GLSL OpenGL Vulkan CMake Unreal Engine 5 Maya ZBrush Lua Perforce Unreal Engine Slate Xray TestRail Objective-C Periscope macOS+22 more

What Jagex: The RuneScape Company Is Building

◆Challenges

Protecting game integrity from malicious plugins
Legacy ui refactoring
Implementing new erp system
Process optimisation opportunities
Transformation across finance team
Complex interconnected systems at scale
Live-service multiplayer testing challenges
Scalable mobile solutions for global player base
Single source of truth
Reporting performance

▲Active Projects

Runescape: dragonwilds
New plugin system
Legacy ui refactoring
Erp implementation
Process optimisation initiatives
Live-service multiplayer testing
Live game updates
Mobile-focused improvements
Dashboard roadmap
Business transformation projects

Hiring Activity

Accelerating10 roles · 10 in 30d

Department

Engineering

Design

Data

Finance

Seniority

Mid

Principal

Senior

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About Jagex: The RuneScape Company

Jagex is a UK-based game developer founded in 2001, headquartered in Cambridge with 400+ employees. The company is best known for RuneScape and Old School RuneScape, two long-running MMOs that define the live-service model: continuous updates, player-driven design input, and evolving worlds. Recent releases include RuneScape: Dragonwilds. Beyond game operation, Jagex builds merchandise, events, and content experiences tied to the franchise. The business operates across PC and mobile platforms, supporting a global player base with localized live updates and community engagement.

HeadquartersCambridge, Cambridgeshire

Company Size201–500 employees

Hiring MarketsUnited Kingdom

Frequently Asked Questions

What tech stack does Jagex use?

Client-side: C++, Unreal Engine 5, Vulkan, GLSL, OpenGL. Backend: Java. Tools: Perforce, CMake, Jira, TestRail. Analytics: Snowflake, Tableau, Google Analytics. Art: Maya, ZBrush, Photoshop, Figma.

How many employees does Jagex have?

Over 400 people work at the Cambridge headquarters. The company is actively recruiting across engineering, design, data, and finance.

How this profile is built

Jagex: The RuneScape Company's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.