Senior Unity Game Developer

Story craft is an AI-powered, mobile-first social sandbox where players don't just play stories—they build them. Think Minecraft meets The Sims meets Wattpad
: a new genre of creative, social storytelling where AI helps players bring their imagination to life.

Backed by top-tier investors who have invested in Open AI, Unity, Supercell and others, we're building a platform that reimagines storytelling as play—combining intuitive creation tools, emotionally expressive characters, and collaborative world-building.

We're hiring a Senior Unity Game Developer who excels at the intersection of client engineering and cloud-driven, multiplayer systems
. You'll design and build features for the Unity front end that power Story craft's mobile experience, and stretch into our Go backend (following existing patterns) to own features end-to-end. From buttery-smooth rendering to cloud-native streamed gameplay, you'll ensure players feel the magic—instantly and reliably.

This is a senior individual contributor engineering role
. You'll lead through hands-on coding, collaborating closely with another senior Unity developer, backend, product, and design teams to deliver performant, testable, and maintainable features. The ideal candidate thinks like a full-stack engineer, loves high-quality codebases, and understands the nuances of a networked multiplayer game on mobile.

• Prototype and ship new gameplay features that showcase Story craft's AI-powered creation tools and social systems
• Evolve Story craft's Unity client
  : design and implement new features, test and optimize performance, and integrate with mobile platforms (iOS & Android)
• Integrate features with our websocket-based multiplayer layer
  , ensuring low-latency and state synchronization with the Go backend
• Collaborate with our backend engineer to design API contracts and occasionally contribute your own Go code using our existing frameworks and patterns
• Optimize rendering, memory, and bandwidth for cloud-streamed play and AI-driven features
• Write testable, modular C# code and introduce/maintain automated tests (unit, integration, play-mode) in Unity
• Mentor peers through thoughtful code reviews and technical guidance; champion engineering best practices
• Monitor live metrics, debug production issues, and deliver rapid fixes without sacrificing code quality
• 5+ years professional experience developing games in Unity/C#, including at least one shipped mobile or cross-platform live service game
• AI-fluent or AI-literate: Excited to share how AI tools can accelerate your development workflows and learn to integrate gameplay with AI technology
• Strong understanding of networked gameplay architectures (authoritative server, client prediction, reconciliation, websockets or similar)
• Experience collaborating with backend teams and contributing full-stack
  . You can read and write basic server-side code using existing frameworks and patterns
• Strong grasp of software architecture
  , design patterns
  , and automated testing strategies in Unity
• Proven track record optimizing performance, memory, and build size for mobile devices and/or streamed game clients
• Familiarity with CI/CD pipelines, and modern Dev Ops practices
• Startup-ready: autonomous, adaptable, bias to action, and energized by rapid iteration
• Based in Canada and/or ET timezone
• Demonstrated expertise in AI-assisted programming workflows
• Prior startup experience or shipping a complete game on your own
• Prior experience integrating ECS-style
  , data-oriented architectures in Unity
• Experience with integrating LLMs or Diffusion models in production and/or assessing AI performance through evals
• Experience with the Go programming language
• Passion for sandbox, creative, or social storytelling games—and a personal creative practice

This isn't just a job—it's a rare opportunity to co-create a new category of game at the intersection of storytelling, AI, and player expression. We're a lean, high-trust team building fast, learning constantly, and thinking long-term. That means:

• You'll be at the vanguard of AI. Story craft embraces modern AI technology as a core part of it's game features, development…