Top Benefits
About the role
Who you are
- Solid experience with Unreal Engine development
- Knowledge of UMG, Slate fundamentals, Blueprint/C++ integration, and the Unreal gameplay framework
- Demonstrable experience integrating UI with GAS or similarly complex gameplay and state systems
- Understanding of ViewModel usage, separation of concerns, and maintainable UI architecture
- Track record of refactoring inherited UI codebases and improving technical structure
- Strong experience working on multiplayer games
- Experience with Unreal Viewmodel/MVVM plugin in production is a benefit
- Experience with Common UI, input routing, platform UX, and UI tooling is a benefit
What the job involves
- We’re looking for a UI Engineer to join the RuneScape: Dragonwilds development team, owning gameplay-facing UI systems from architecture through to implementation
- This is a hands-on engineering role where you’ll work closely with designers, gameplay engineers, and UX to deliver new features, modernise existing UI, and create robust patterns that help the team build scalable, performant interfaces with confidence
- You’ll have the opportunity to shape how complex gameplay systems are surfaced to players, from abilities and attributes to cooldowns, status states, match flow, death, respawn, and spectating
- The role goes beyond implementing screens: you’ll help define the technical foundations that make UI reliable, maintainable, and effective in a networked multiplayer environment
- Build gameplay-facing UI in Unreal using UMG, Common UI, and MVVM where appropriate
- Create reusable widgets, frameworks, data flows, and tools that help designers iterate quickly
- Connect UI to gameplay systems, including abilities, attributes, cooldowns, and player status
- Refactor legacy UI into cleaner, more consistent, production-ready systems
- Work with designers and UX to turn player-facing goals into practical Unreal solutions
- Keep UI performant, reliable, and multiplayer-safe under complex gameplay conditions
- Debug UI, input, replicated state, and edge cases across core game flows
- Help set UI engineering standards for architecture, naming, ownership, and Blueprint/C++ usage
Benefits
- Private Healthcare, including Dental Plan
- £75 Monthly Energy Allowance (paid on top of your salary)
- Generous Pension Contributions
- Free Gym Membership
- Employee Assistance Programme & Onsite Counselling
- Life Insurance X4 your Salary
- Income Protection 75% Salary
- Annual performance bonus & Pay Reviews
- Enhanced Maternity and Paternity - from day 1
- 25 days annual leave +Bank holidays (Increasing by 1 day per year of service up to 30 days)
- Flexible Working Hours
- Flash Bonuses
Not the right fit? Search for UI Engineer jobs in Cambridge
About Jagex
A leader in creating deep and engaging forever games on PC, Console & Mobile that empower our communities. Jagex was founded in 2001 and is today one of the UK’s biggest and most respected video game developers and publishers.
Famed for its flagship MMOs RuneScape and Old School RuneScape, Jagex has welcomed more than 300 million player accounts to its world and created a $1bn lifetime franchise revenue. Today the RuneScape franchise exists beyond running games in live operations; our titles are forever games that connect and inspire millions of players, with content and experiences both inside and outside of inexhaustible game worlds.
Both RuneScape and Old School RuneScape, on PC and mobile, offer ever-evolving, highly-active worlds and our community-focused development ethos empowers players to have a real say in how each game is shaped.
Jagex has added to its skill set with the acquisitions of Pipeworks and Gamepires in 2022, bringing our expertise to titles such as SCUM, helping to make SCUM a forever game. It also works with external partners on products such as Melvor Idle and This Means Warp; bringing these titles to new and existing audiences.
Jagex employs more than 600 people at its Cambridge headquarters and around the world at Pipeworks in North America, and Gamepires in Europe. We’re always on the hunt for talented people to work across the business, to help the company to achieve its goals.
Similar Jobs
Top Benefits
About the role
Who you are
- Solid experience with Unreal Engine development
- Knowledge of UMG, Slate fundamentals, Blueprint/C++ integration, and the Unreal gameplay framework
- Demonstrable experience integrating UI with GAS or similarly complex gameplay and state systems
- Understanding of ViewModel usage, separation of concerns, and maintainable UI architecture
- Track record of refactoring inherited UI codebases and improving technical structure
- Strong experience working on multiplayer games
- Experience with Unreal Viewmodel/MVVM plugin in production is a benefit
- Experience with Common UI, input routing, platform UX, and UI tooling is a benefit
What the job involves
- We’re looking for a UI Engineer to join the RuneScape: Dragonwilds development team, owning gameplay-facing UI systems from architecture through to implementation
- This is a hands-on engineering role where you’ll work closely with designers, gameplay engineers, and UX to deliver new features, modernise existing UI, and create robust patterns that help the team build scalable, performant interfaces with confidence
- You’ll have the opportunity to shape how complex gameplay systems are surfaced to players, from abilities and attributes to cooldowns, status states, match flow, death, respawn, and spectating
- The role goes beyond implementing screens: you’ll help define the technical foundations that make UI reliable, maintainable, and effective in a networked multiplayer environment
- Build gameplay-facing UI in Unreal using UMG, Common UI, and MVVM where appropriate
- Create reusable widgets, frameworks, data flows, and tools that help designers iterate quickly
- Connect UI to gameplay systems, including abilities, attributes, cooldowns, and player status
- Refactor legacy UI into cleaner, more consistent, production-ready systems
- Work with designers and UX to turn player-facing goals into practical Unreal solutions
- Keep UI performant, reliable, and multiplayer-safe under complex gameplay conditions
- Debug UI, input, replicated state, and edge cases across core game flows
- Help set UI engineering standards for architecture, naming, ownership, and Blueprint/C++ usage
Benefits
- Private Healthcare, including Dental Plan
- £75 Monthly Energy Allowance (paid on top of your salary)
- Generous Pension Contributions
- Free Gym Membership
- Employee Assistance Programme & Onsite Counselling
- Life Insurance X4 your Salary
- Income Protection 75% Salary
- Annual performance bonus & Pay Reviews
- Enhanced Maternity and Paternity - from day 1
- 25 days annual leave +Bank holidays (Increasing by 1 day per year of service up to 30 days)
- Flexible Working Hours
- Flash Bonuses
Not the right fit? Search for UI Engineer jobs in Cambridge
About Jagex
A leader in creating deep and engaging forever games on PC, Console & Mobile that empower our communities. Jagex was founded in 2001 and is today one of the UK’s biggest and most respected video game developers and publishers.
Famed for its flagship MMOs RuneScape and Old School RuneScape, Jagex has welcomed more than 300 million player accounts to its world and created a $1bn lifetime franchise revenue. Today the RuneScape franchise exists beyond running games in live operations; our titles are forever games that connect and inspire millions of players, with content and experiences both inside and outside of inexhaustible game worlds.
Both RuneScape and Old School RuneScape, on PC and mobile, offer ever-evolving, highly-active worlds and our community-focused development ethos empowers players to have a real say in how each game is shaped.
Jagex has added to its skill set with the acquisitions of Pipeworks and Gamepires in 2022, bringing our expertise to titles such as SCUM, helping to make SCUM a forever game. It also works with external partners on products such as Melvor Idle and This Means Warp; bringing these titles to new and existing audiences.
Jagex employs more than 600 people at its Cambridge headquarters and around the world at Pipeworks in North America, and Gamepires in Europe. We’re always on the hunt for talented people to work across the business, to help the company to achieve its goals.