Job Summary

Job Description

We are seeking a Principal Core Tech Engineer for an 18-month fixed-term contract to elevate our engineering team's technical standards. This role focuses on solving complex problems within Unreal Engine 5, optimizing performance, and ensuring system scalability and reliability. Responsibilities include owning and refining core game systems, driving optimization and debugging, defining best practices for architecture and memory management, and collaborating with other teams. The ideal candidate possesses deep C++ and UE5 expertise (especially gameplay framework, ECS, replication, and threading), a proven track record of solving high-risk technical challenges in shipped multiplayer games, and a passion for pushing technological boundaries. The project is Wardogs, a large-scale multiplayer first-person shooter.

Must have:

5+ years professional experience in games
Deep C++ and Unreal Engine 5 knowledge
High-risk problem-solving in multiplayer games
Multiplayer networking and netcode optimization
System architecture, memory management expertise

7 skills required

7 skills required for this role

Add these skills to join the top 1% applicants for this job

cpp

multiplayer

unreal

foundation

scalability

networking

problem-solving

Job Details

We’re looking for a Principal Core Tech Engineer to set the technical bar for our engineering team. This isn’t about managing people, it’s about solving the hardest problems, pushing Unreal Engine 5 to its limits, and making sure our tech is rock solid, scalable, and ready for war.

You’ll be deep in the engine, working on bleeding-edge UE5 systems — replication, streaming, threading, ECS, and more. This is not a role for someone who wants to stay in the safe lane. We need someone who thrives in uncharted territory and isn’t afraid to break things, figure it out, and build something better.

What you'll be doing

Own and refine the foundation of our game systems in Unreal Engine 5
Drive optimisation and debugging across all core tech areas
Define best practices for system architecture, memory management, threading, networking, and scalability
Guide the engineering team through technical challenges and architectural decisions
Proactively identify performance bottlenecks and solve them at the engine level
Collaborate closely with Production, Design, and Art to keep systems clean, usable, and future proof

What we’re looking for

5+ years of professional experience in games
Deep knowledge of C++ and Unreal Engine 5 (especially the gameplay framework, ECS, replication, and threading)
A track record of solving high-risk technical problems on shipped multiplayer games
Strong understanding of multiplayer networking and netcode optimisation
Clear communication, pragmatic thinking, and a mindset of ownership
Passion for games and the tech behind them
Confidence working with cutting edge UE5 systems — even when the documentation’s thin and no one’s done it before

The Game

You'll be working on Wardogs, an all-out-warfare multiplayer first person shooter. That means infantry combat, tank warfare, jet dog fighting, and artillery barrages. We play test the game twice a week, so you'll have lots of time to get stuck in and really be a part of the game you're creating.