Senior Gameplay Software Engineer

3 Weeks ago • All levels
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About the job

SummaryBy Outscal

Senior Gameplay Software Engineer for open-world multiplayer sandbox, experience in Unreal Engine 5, UGC platforms, and multiplayer networking.

Who are we?

Hypersonic Labs is building HELIX, the ultimate open-world multiplayer sandbox. We are a remote-first, international team and have raised $11M from top gaming VCs.

About the role

As a Senior Gameplay Software Engineer, you will take the lead in developing core gameplay systems while supporting our UGC platform. You’ll work closely with Lua scripters to provide a seamless experience for creators, ensuring they have the tools needed to build complex, engaging multiplayer games. Your focus will also include ensuring the platform is scalable, optimized for cross-platform play, and ready for deployment on consoles.

What You Will Be Doing

  • Lead the development of core gameplay systems, including character movement, physics, AI, and player interaction mechanics.
  • Collaborate with Lua scripters to integrate and enhance UGC gameplay mechanics, ensuring creators can easily build and modify game systems.
  • Optimize multiplayer systems for performance, scalability, and real-time synchronization across large player bases.
  • Support UGC development by creating modular gameplay systems that are easily accessible and customizable through Lua scripting.
  • Build modular, reusable code to empower creators and improve the scalability of the platform.
  • Ensure cross-platform compatibility, including preparation for deployment on current-generation consoles (PlayStation 5, Xbox Series X|S).
  • Work with the UI/UX team to provide intuitive interfaces for game creators to build and interact with UGC content.
  • Debug and optimize gameplay code to tackle performance bottlenecks and improve overall multiplayer experiences.
  • Stay current with the latest Unreal Engine 5 advancements, integrating new technologies to enhance UGC creation tools.

What We Will Need From You

  • Experience in game development, focusing on gameplay and multiplayer systems.
  • Expertise in Unreal Engine (preferably Unreal Engine 5), including proficiency in Blueprints and C++.
  • Experience with UGC platforms and the development of systems that support player-created content, especially with Lua scripting.
  • Strong understanding of multiplayer networking and synchronization, including client/server architecture.
  • Experience working with AI systems, physics, and player interaction mechanics, such as inventories or in-game economies.
  • Ability to write clean, modular, and maintainable code with an emphasis on performance and scalability.
  • Familiarity with console development and optimizing performance for current-generation gaming consoles.

Nice to have

  • Experience working with user-generated content (UGC) platforms or creator driven tools.
  • Expertise in performance optimization for large, open-world multiplayer environments.
  • Familiarity with role-playing mechanics, progression systems, or in-game economies.
  • Passion for gaming and a drive to create powerful tools that empower a global community of creator.

About The Company

Hypersonic Labs aims to create the world's most immersive and expansive network of virtual worlds. We are backed by PLAY Ventures, Third Kind, GSR, Alex Chung (Founder of GIPHY) and others.  


Hypersonic is working on HELIX, the ultimate open world sandbox. Build and play immersive massive worlds with incredible UE5-powered graphics and 1000+ players. From FPS games to RP servers to MMORPGs and social hubs, anything is possible in HELIX.

Worldwide (Remote)

Worldwide (Remote)

Worldwide (Remote)

United Kingdom (Remote)

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