Game Designer - Old School RuneScape in Cambridge

Location: Cambridge, UK – This position can accommodate flexible working options. However, candidates must be based (or be willing to relocate) within a comfortable commuting distance of our Cambridge office to be able to attend onsite as required. This is an 18-month fixed term contract.

Are you a creative and systems-driven game designer with a deep understanding of Old School RuneScape and a passion for building meaningful content for players? As a Game Designer within the Old School RuneScape Design team, you’ll design, implement, and refine engaging content across a variety of areas within the game. From initial concept through to scripting and release, you’ll consider gameplay, technical implementation, and player experience at every stage. Working within small to medium-sized multi-disciplinary teams, you’ll help deliver weekly updates to a live MMORPG with one of the most passionate communities in gaming history.

What you’ll be doing:

• Design engaging and varied content across multiple areas of Old School RuneScape.
• Script your designs using our in-house language, RuneScript, bringing ideas to life through technical implementation.
• Create and maintain clear design documentation to support development and collaboration.
• Ensure your content aligns with business goals, player needs, and identified gaps within the game.
• Collaborate closely with designers, engineers, artists and community teams to deliver high-quality weekly updates.
• Use game data and player insight to inform balancing, iteration, and long-term content planning.
• Handle scripting and implementation for projects of reasonable size and complexity within a live environment.
• Continuously expand your knowledge of existing game systems to ensure your work integrates seamlessly into the broader game.

What we’re looking for:

• Strong understanding of MMORPG progression systems, content loops, and systemic design principles.
• Technical experience with scripting or programming to support direct implementation in RuneScript.
• Experience working within a structured game development environment.
• Ability to manage workload effectively within a live, frequently updated product.
• Proven experience collaborating effectively with other creative people and teams.
• Strong analytical skills with attention to gameplay balance and system integrity.
• A deep working knowledge of Old School RuneScape, RuneScape or other MMOs, including skills, quests, metas and player behaviours would be very beneficial.

What we offer:

• Private Healthcare, including Dental Plan.
• Discretionary annual performance bonus.
• Minimum 6% Pension contributions.
• Life Insurance.
• Enhanced family leave policies from day 1.
• Flexible working hours.
• 25 days annual leave + Bank holidays & the option to buy/sell holidays + so much more!

We are Jagex: The RuneScape Company. Home to one of gaming’s most enduring success stories. We create deep, community-powered games with worlds that evolve, inspire, and endure. Our flagship MMORPG franchise, RuneScape, has welcomed over 300 million player accounts, inspiring generations of players across PC and mobile for 25 years. As we begin our 26th year, we are accelerating our strategy to expand RuneScape into a broader ecosystem of forever games and connected experiences, grounded in a renewed commitment to integrity and fair play. We remain focused on building enduring worlds, empowering player‑led innovation, and laying the foundations for the boldest era in RuneScape’s history.

We are committed to providing equal opportunities and creating an environment where everyone can thrive. We welcome applications from all backgrounds, and we recruit, develop, and promote based on merit and ability. If you require any reasonable adjustments to support you during the recruitment process, please let us know when you’re invited to interview.