Senior Unreal Gameplay Engineer | Multiplayer FPS
Ironbelly Studios
Join the team who's helped build 300+ games ranging from Call of Duty, Halo, PUBG, and Bioshock
You know the difference between client prediction and server reconciliation. You've debugged replication issues at 3 AM. You understand why a 16ms frame budget matters in competitive shooters.
We're Ironbelly Studios - 20+ industry veterans building our next multiplayer FPS in Unreal Engine 5. This is new system architecture from the ground up, not maintenance work.
⚡ The Mission
Own the core gameplay architecture for a fully-funded competitive shooter targeting the hardcore PC FPS community. You'll architect systems handling thousands of concurrent players while maintaining the sub-16ms responsiveness that competitive players demand.
You Will
Architect Multiplayer Systems
- Design server-authoritative architecture with client prediction and lag compensation
- Implement advanced ballistics with material penetration and damage modeling
- Build AI state machines for combat encounters and world simulation
- Own inventory replication and dynamic loot spawn systems
Drive Technical Excellence
- Optimize for consistent 60+ FPS in intense multiplayer scenarios
- Establish Unreal best practices across the engineering team
- Balance competitive feel with network performance
Scale for Success
- Implement persistent player progression and reputation systems
- Design session management and skill-based matchmaking
- Integrate backend services, databases, and analytics pipelines
️ Must-Haves
- 5+ years shipping games with Unreal Engine (UE4/UE5)
- Deep C++ expertise in gameplay architecture
- Shipped at least 2 commercial games (ideally multiplayer)
- Proven experience with weapon systems and combat mechanics
- Mastery of multiplayer concepts: replication, RPCs, lag compensation
- Backend integration experience
Bonus Points
- Extraction shooter or Battle Royale development
- Anti-cheat and competitive integrity systems
- Gameplay Ability System (GAS) expertise
- Experience scaling to 1000+ concurrent players
- Live-service game operations
Why Ironbelly?
Proven Track Record: Our team has contributed to 300+ projects from indie to AAA franchises
Technical Freedom: Senior engineers drive architectural decisions - no micromanagement
Stable & Funded: Fully-funded project with clear roadmap and experienced leadership
Remote-First Culture: Work from anywhere in Canada, USA, or South America. Optional collaboration at our Montreal hub for those who want it.
Real Benefits: Competitive salary, comprehensive health coverage (dental, vision), generous PTO
Location
This is a hybrid role based in Montreal, Quebec. We're building a centralized team in one of gaming's most vibrant cities. Local candidates or those willing to relocate will be prioritized but all are welcome!
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