Senior UE5 Gameplay Engineer (Remote) — Multiplayer Systems

Jagex Limited; Town Of Cambridge; On-site; AUD 143,000 - 210,000; Full time

Benefits offered by this job

Private Healthcare

Discretionary annual performance bonus

Minimum 6% Pension contributions

Life Insurance

Enhanced family leave policies fromday

Flexible working hours

25 days annual leave + Bank holidays

Job summary

Jagex is seeking a Senior Gameplay Engineer to join RuneScape: DragonWilds, building responsive multiplayer gameplay in Unreal Engine 5. You’ll implement features in C++ and Blueprint, collaborate with designers, and push the GAS framework to enable rapid iteration.

You’ll work on networked gameplay, debugging desyncs, profiling performance, and shipping large-scale systems with a focus on stability and scalability for live multiplayer experiences.

Qualifications

• Proven UE5 gameplay programming experience in C++, with Blueprint familiarity.
• Strong multiplayer networking knowledge in Unreal: replication, RPCs, authority model, relevancy and dormancy, prediction concepts, and client/server debugging.

Responsibilities

• Own and implement gameplay features in UE5 C++ and Blueprint, using GAS for abilities, attributes, effects, cues and tags, taking an area from prototype to shipped so there is one person accountable for how it plays.
• Design and maintain reusable gameplay frameworks and components aligned with GAS-first patterns, giving designers room to iterate quickly without a programmer in the loop for every change.
• Build networked gameplay that replicates correctly and feels responsive, working with prediction, authority, RPCs and relevancy, because the networking model decides whether gameplay feels good or feels broken.
• Collaborate with designers to iterate on combat, abilities and systems, protecting technical integrity while still landing the version that plays best.
• Debug gameplay issues across client and server, from desyncs and edge cases to live repros, keeping the game stable while the team ships at pace.
• Profile and optimise gameplay code against performance and bandwidth targets so systems hold up as the game and its player counts scale.

Skills

UE5 C++

Blueprint

Networking (Unreal)

Gameplay scripting

Designer collaboration

Tools

GAS (Gameplay Ability System)

Unreal networking

Job description

Jagex is seeking a Senior Gameplay Engineer to join RuneScape: DragonWilds, building responsive multiplayer gameplay in Unreal Engine 5. You’ll implement features in C++ and Blueprint, collaborate with designers, and push the GAS framework to enable rapid iteration.

You’ll work on networked gameplay, debugging desyncs, profiling performance, and shipping large-scale systems with a focus on stability and scalability for live multiplayer experiences.