Client Platform Engineer - Web/Mobile

Level is looking for a Senior Client Platform Engineer to own how Level's Godot-based educational games ship and run on one or more target platforms. Students play on whatever device is in front of them, from a school-issued Chromebook to a family iPad to a browser tab, and you will make sure each of those experiences feels native and performs well. You'll bring deep, hands-on knowledge of the CPU, GPU, and platform-specific requirements of landing a product on your specialty platform, and you'll mentor the engineers around you as you build it. What You Will Do: • Platform Ownership: Own delivery of Level's games on your specialty platform(s) end to end, including build, packaging, signing, store or distribution requirements, release, and live updates • Platform Abstraction Layer: Design and maintain the shared layer that isolates game code from platform differences in windowing, input, file system access, and device services, so feature teams never write platform-specific code • Lifecycle Management: Handle suspend and resume, backgrounding, orientation and window changes, permissions, interruptions, and memory pressure so student progress is never lost • Performance Layer: Build device capability detection, automatic quality settings, scalability tiers, and graceful fallbacks so games run well on low-end school hardware as well as flagship devices • Profile and Optimize: Use platform-native profiling tools to find CPU, GPU, memory, load-time, and battery bottlenecks, and work with graphics and gameplay engineers to fix them • Native Integration: Write and maintain native plugins and bindings, such as GDExtension, JNI, Swift or Objective-C, and JavaScript interop, that connect Godot to platform services • Platform CI and Device Coverage: Automate builds, packaging, and device testing for your platform, and maintain a representative device matrix so regressions are caught before students see them • Technical Ownership: Influence technical decisions, flag platform risk early, and document platform constraints so gameplay, graphics, and product teams can plan with confidence • Mentorship: Actively mentor mid-level and associate engineers on platform fundamentals and good engineering practice Where You Might Land: We are hiring across several platform specializations. Apply to this role and we will route you to the track that fits your strengths. You need real depth in at least one: • iOS: Apple platform depth, including Metal and Apple GPU architecture, CPU, thermal, and memory behavior across iPhone and iPad generations, App Store requirements, and the iOS app lifecycle • Android / Chromebook: Android and ChromeOS depth, including Vulkan and OpenGL ES across fragmented GPU vendors, device-tier variability, Play Store and Chromebook deployment, and the Android activity lifecycle • Web: Browser delivery depth, including WebGL and WebGPU, WebAssembly, download size and load time, browser and device compatibility, audio and input quirks, and sandbox constraints • Desktop (Windows, macOS, Linux): Desktop depth, including windowing and input, installers and packaging, code signing and notarization, and GPU driver variability across hardware • Performance: Cross-platform performance engineering, including capability detection, automatic settings, scalability tiers, and fallback strategies across Level's full range of target devices • Generalist: Working experience across several of the above, able to move between platforms as priorities shift and to build the shared abstraction layer that ties them together Qualifications Need to Have: • 5+ years of professional software engineering experience, including shipped production software on at least one of iOS, Android or ChromeOS, Web, Windows, macOS, or Linux • Deep, demonstrated expertise in the CPU, GPU, memory, and thermal characteristics of your specialty platform and how they shape real-time application performance • Strong C++ or C# skills, plus fluency in the native languages of your specialty, such as Swift or Objective-C, Kotlin or Java, JavaScript or TypeScript, or Rust • Hands-on ownership of platform build, packaging, signing, and release, including store submission or distribution, for a shipped product • Experience with the application lifecycle and system services of your platform, including windowing, input, file system access, permissions, and interruptions • Proficiency with platform profiling and debugging tools, such as Xcode Instruments, Android Studio Profiler, Perfetto, browser DevTools, PIX, or RenderDoc • Familiarity with game engine or real-time application architecture, ideally Godot or a comparable engine • Track record of mentoring mid-level engineers and influencing technical decisions on your team • Clear written and verbal communication, with the ability to explain platform constraints to non-specialists Nice to Have: • Experience with Godot, including custom builds, export templates, or GDExtension • Experience building platform abstraction layers or cross-platform runtime frameworks • Experience with device capability detection, automatic quality settings, or dynamic scalability systems • Experience targeting low-end or school-issued hardware, including Chromebooks • Experience with CI/CD for multi-platform builds and automated device testing • Shipped titles or apps on one or more app stores or web platforms • Interest in educational technology and in building products that students and teachers use every day