Backend Engineer (Multiplayer FPS)

Location: Hybrid role requiring 1–3 days in the office, based in Montreal, Quebec, Canada

Company

hirify.global is developing a next-generation competitive multiplayer FPS designed for PC players and esports competition.

What you will do

• Design distributed, stateful game services that manage real-time game state across thousands of concurrent users and matches.
• Build high-performance ELO matchmaking supporting more than 50,000 concurrent players with wait times under five seconds.
• Architect transactional inventory and virtual-economy systems handling items with real monetary value.
• Implement authoritative server validation and integrate anti-cheat systems such as BattlEye and EAC.
• Create LiveOps and hot-patching infrastructure for uninterrupted updates during peak hours.
• Develop and operate services using Kubernetes, AWS GameLift or Agones, Redis, PostgreSQL, WebSockets, gRPC, and UDP.

Requirements

• 5+ years of experience shipping multiplayer game backends, rather than web applications adapted for games.
• Production experience handling more than 50,000 concurrent users.
• Experience with PlayFab, Pragma, AccelByte, or equivalent backend systems built from scratch.
• Deep knowledge of Kubernetes at scale, AWS game services, and NodeJS performance optimization.
• Understanding of tick rates, client prediction, lag compensation, and state synchronization.
• Released multiplayer titles that can be referenced on Steam, Epic, or consoles, with concrete scaling, latency, uptime, and incident-resolution examples.

Nice to have

• Direct experience with Unreal Engine 5 replication.
• Experience with competitive ranking systems such as ELO or TrueSkill.
• Background in anti-cheat or game security.

Culture & Benefits

• Hybrid work arrangement with 1–3 office days per week in Montreal.
• Opportunity to build backend systems for a competitive FPS targeting esports-level performance.
• Work on real-time infrastructure handling thousands of simultaneous battles and more than one million events per minute.