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Backend Engineer | Multiplayer FPS ~ Ingénieur backend | FPS multijoueur

Job in Québec City, Québec, Province de Québec, Canada
Listing for: Ironbelly Studios
Full Time position
Listed on 2026-09-13
Job specializations:
  • Software Development
    Backend Developer, Software Engineer, DevOps, Game & 3D/XR Development
Job Description & How to Apply Below
Location: Québec City

⚡ THE MISSION

Build the backend that powers thousands of concurrent battles in our next-generation competitive FPS. This isn't web development with game features - this is architecting the real-time infrastructure that hardcore players demand: sub-50ms response times, bulletproof persistence, and flawless matchmaking for a title that will compete with CS2 and Valorant.

🏆 WHY THIS ROLE MATTERS

You won't be building CRUD APIs. You'll work on advances and highly orchestrated backend features of our games. You will be building CRUD APIs often!

  • Ecosystem Impact:
    Your code will power a new era of virtual economies

  • Live Operations:
    Your systems will handle thousands of concurrent user actions

🔧 YOUR TECHNICAL BATTLEFIELD

Mission-Critical Systems You'll Own:

  • Stateful Game Services:
    Design distributed systems managing real-time game state across thousands of concurrent users

  • Inventory & Economy Backend: Architect transactional systems managing player inventories worth real money

  • Advance Features: Orchestrate features related to player actions

Your Arsenal:

  • Infrastructure:
    Kubernetes for scalable service architecture

  • Performance:
    Redis for caching, PostgreSQL for persistence, 100K+ ops/second

  • Protocols: WRESTful services, Typescript, Distributed systems orchestration framework (virtual actor frameworks, queuing)

  • Monitoring:
    Real-time observability handling 1M+ events/minute

REQUIRED EXPERTISE

Non-Negotiable Technical Skills:

  • 5+ years shipping multiplayer game backends (not web apps that happen to be games)

  • Proven scaling experience:
    You've handled 50K+ CCU in production

  • Battle-tested with:
    Play Fab, Pragma, Accel Byte, or built similar from scratch

  • Deep knowledge:
    Kubernetes at scale, AWS game services, NodeJS performance optimization

  • Game-specific expertise:
    Tick rates, client prediction, lag compensation, state synchronization

Evidence We Need:

  • Shipped titles you can point to on Steam/Epic/Console

  • War stories about scaling failures and how you fixed them

  • Specific metrics: CCU handled, latency achieved, uptime maintained

  • Your approach to common problems: inventory duplication, match state corruption, DDOS mitigation

🚀 BONUS MULTIPLIERS
  • Direct Unreal Engine 5 replication system experience

  • Experience with competitive game ranking systems (ELO, True Skill)

  • Background in anti-cheat or game security

🎮 THE GAME YOU'LL POWER

We're building the competitive FPS that PC players have been waiting for. Think CS:

GO's competitive integrity meets modern gameplay. Your backend will be the difference between "another shooter" and "the next decade's esport."

📍 Location

Hybrid role (1-3 days in office) based in Montreal, Quebec.

~

⚡ LA MISSION

Construisez le backend qui alimentera des milliers de batailles simultanées dans notre FPS compétitif de nouvelle génération. Il ne s'agit pas de développement web avec des fonctionnalités de jeu, mais bien de concevoir l'infrastructure en temps réel exigée par les joueurs hardcore : des temps de réponse inférieurs à 50 ms, une persistance à toute épreuve et un matchmaking sans faille pour un titre qui rivalisera avec CS2 et Valorant.

🏆

POURQUOI CE POSTE EST IMPORTANT
  • Vous ne développerez pas d'API CRUD. Vous serez responsable de l'intégrité concurrentielle de notre jeu dans son ensemble :

  • Confiance des joueurs : votre couche de persistance contient des millions d'objets virtuels

  • Équité des matchs : votre système de matchmaking détermine l'expérience de chaque joueur

  • Opérations en direct : vos systèmes gèrent 10 000 matchs simultanés sans aucun problème

🔧 VOTRE CHAMP DE BATAILLE TECHNIQUE
  • Systèmes critiques dont vous serez responsable :

  • Services de jeu avec état : concevoir des systèmes distribués gérant l'état du jeu en temps réel sur des milliers de matchs simultanés

  • Matchmaking haute performance : créer un…

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