Senior Network Gameplay Engineer (Unreal Engine 5 / Sports) Job at Refactor Games, Santa Monica, CA

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  • Refactor Games
  • Santa Monica, CA

Job Description

Refactor Games is a AAA sports video game studio . We are developing the next generation of professional football (soccer) video games using Unreal Engine 5 . We’re building a highly responsive, low-latency multiplayer soccer experience in Unreal Engine 5.

We need a Senior Network Gameplay Engineer who understands how to make gameplay features feel instantaneous and synchronized across machines—especially during high-precision moments like Free Kicks, Goal Kicks, Penalties, and Set Piece Cinematics.

This role is about making sure gameplay-critical events look and feel perfect online. You’ll be responsible for replication and state synchronization of physical events, user-driven interactions, animation triggers, and cinematic sequences.

You'll Work On:

  • Frame-accurate replication of Free Kick, Goal Kick, and Penalty Kick logic
  • Networked synchronization of player input, ball movement, trajectory interfaces, and power meters
  • State machines for transitions (e.g. from gameplay to set-piece to cinematic and back)
  • Character physics replication: tackles, collisions, ragdolls, limb IK, and fall reactions
  • Online consistency for user interaction systems (aiming, reticles, bars, slow-mo, etc.)
  • Real-time event handling across game states: fouls, goals, replays, substitutions
  • Cinematic sync systems: camera triggers, start/stop points, reaction cutaways
  • Reconciliation systems for desync correction in tight latency windows

Requirements:

  • 5+ years experience building multiplayer or networked gameplay features
  • Expert knowledge of Unreal Engine 5's replication model (Actors, RPCs, Net Serialization)
  • Experience with client-side prediction, rollback, and latency compensation systems
  • Solid C++ skills with experience debugging complex network sync bugs
  • Strong understanding of physics replication, animation state sync, and UI replication
  • Ability to build deterministic systems with consistent outcomes across clients

Bonus Points:

  • Built online systems for sports, fighting, or precision multiplayer games
  • Deep knowledge of soccer gameplay flow and how online timing affects realism
  • Experience working closely with gameplay, UI/UX, and cinematics teams to sync events

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