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Technical Designer

ImprobableUnited KingdomOnsite

Jitter, an indie dev studio is redefining how streamers and their audiences interact by turning live streams into interactive game experiences. Check out some of the latest
examples!We’re building a platform where Twitch viewers don’t just watch—they play a meaningful role in shaping the action. From chaotic, chat-controlled gameplay to streamer-driven challenges, Jitter enhances engagement, drives virality, and creates new revenue opportunities for creators.Imagine streamers seamlessly hosting interactive worlds, viewers collaborating or competing in real-time, and audiences influencing gameplay like never before.We want you to help us build the future of live, interactive gaming!

Your Opportunity:


As one of our Technical Designers, you’ll be the key architect of gameplay systems, interactive mechanics, and user-driven features within Unreal Engine. Working closely with engineers and designers, you’ll develop tools and mechanics that power streamer-audience interactions, dynamic in-game events, and social gameplay elements.
You will:

  • Design and implement core gameplay systems, ensuring they are fun, scalable, and support Jitter’s unique audience-driven experience.
  • Develop in-game mechanics that integrate with our Twitch Extension/Integrations, enabling seamless interaction between streamers and viewers.
  • Create, refine, and optimize game logic in Unreal Engine (Blueprints & scripting), focusing on interactive elements, in-game economy, and social play.
  • Prototype new ideas that push the boundaries of audience participation, iterating rapidly based on playtesting and feedback.
  • Ensure smooth integration of gameplay features with Unreal Engine multiplayer systems and real-time game events.
  • Collaborate with engineers to develop tools and workflows that allow for fast iteration and scalability.
  • Balance and tune interactive mechanics to ensure engaging experiences across different playstyles and audience sizes.

Why You're Made for This:


  • Unreal Engine Expertise: Strong proficiency in Blueprints, scripting, and game system design.
  • Multiplayer Experience: You have experience building systems for multiplayer games, ensuring smooth and engaging player interactions.
  • Twitch & Interactive Gaming Mindset: Understanding of real-time audience participation, streamer engagement, and interactive experiences.
  • Systems & Gameplay Design: Experience designing and implementing gameplay loops, progression systems, and social mechanics.
  • UI/UX & UMG Proficiency: Comfortable working in Unreal Motion Graphics (UMG) with a strong understanding of UI/UX design principles to create intuitive and immersive interfaces.
  • Problem-Solving Mentality: Ability to prototype, troubleshoot, and optimize interactive features in a fast-moving environment.
  • Adaptability & Collaboration: Comfortable working in a small team, wearing multiple hats, and collaborating across disciplines.
  • Growth Mindset: You value mentorship, team development, and fostering an inclusive, creative environment.

Bonus Points:


  • Knowledge of Twitch integrations, live audience mechanics, or user-generated content tools.
  • Background in game economy design, virtual goods, or player-driven progression systems.

While we think the above experience could be important, we’re keen to hear from people that believe they have valuable experience to bring to the role. If you identify with the team and mission, but not all of our requirements, then please still apply.

Life at Improbable

Improbable is dedicated to building powerful technology designed to help solve previously impossible problems and enable the creation of new realities. In gaming and entertainment, Improbable unlocks truly next-generation gameplay through virtual worlds of unprecedented scale, persistence and richness. In other industries, we hope to help answer critical questions through simulations that could lead to a better functioning world. Our platform, SpatialOS, lets developers transcend the limits of regular computation, allowing swarms of servers running in the cloud to cooperate in order to simulate worlds far larger and more complex than any single server could. We are a British technology company proudly building a diverse workforce, driven by a shared desire to improve and achieve extraordinary things. We're crafting technology for the future and fostering a problem-solving culture that embraces innovation through iteration and experimentation.
Thrive Here & What We Value1. Flexibility and autonomy2. Emphasis on diversity, inclusion, and belonging3. Healthy culture4. No discrimination based on protected status5. Contribution from a diverse range of individuals6. Collaborative teamwork7. Proactivity and open communication8. Quick delivery over perfection
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