Multiplayer Systems Engineer (Unreal Engine)

TL;DR

Multiplayer Systems Engineer (Unreal Engine/C#): Building online systems that enable multiplayer games, including matchmaking, session flows, and player data with an accent on client-server communication and dedicated server logic. Focus on implementing high-performance backend services and integrating them into Unreal Engine to ensure a reliable online player experience.

Location: Hybrid in Loveland, Colorado (preferred 4 days/week onsite). Applicants must be legally authorized to work in the United States; no visa sponsorship is provided.

Salary: $125,000 – $155,000 Annually

Company

Studio Sirens, a development team under Snail Games focused on prototyping innovative gameplay systems and crafting bold new IP.

What you will do

• Implement multiplayer features and client-server logic using C++ and Blueprints in Unreal Engine.
• Develop backend services in C# to support matchmaking, sessions, authentication, and player data.
• Build REST endpoints and manage NoSQL databases like MongoDB or Redis for efficient data handling.
• Design and implement logic for dynamic dedicated server instancing, including session allocation and region selection.
• Debug and profile complex performance issues across the full multiplayer path between client, server, and backend.
• Collaborate with design, engineering, and QA to maintain smooth online feature integration.

Requirements

• Bachelor’s degree in Computer Science or a related field.
• 4+ years of experience building multiplayer games or connected online systems.
• Strong proficiency in C++, C#, and Unreal Engine 4 or 5.
• Deep understanding of multiplayer networking fundamentals, replication, and latency mitigation.
• Experience integrating backend services with game clients and dedicated servers.
• Must be legally authorized to work in the USA (no visa sponsorship available).

Nice to have

• Experience shipping games built with Unreal Engine or working on games-as-a-service.
• Experience managing dynamically spawned Unreal Engine dedicated server instances.
• Knowledge of cloud-hosted game server fleets, matchmaking algorithms, or load testing.
• Familiarity with authentication systems and telemetry.

Culture & Benefits

• Strong focus on work-life balance.
• Comprehensive medical, dental, and vision insurance, including Life/LTD.
• 401k plan with company match.
• Paid company holidays, vacation, and separate sick leave.