Senior Software Engineer, Game Systems

Summary

Join Zwift as a Senior Software Engineer, Game Systems and contribute to a smooth and stable game experience across multiple platforms. You will design and implement game features in C++, collaborate with cross-functional teams, optimize game performance, and build development tools. This role requires strong C++ skills, 5+ years of relevant experience, and a Bachelor's degree in a related field. You will focus on writing high-quality, testable code and ensuring compatibility across various platforms. The ideal candidate is passionate about solving complex technical challenges and working on a product used by millions. Zwift offers a competitive salary and benefits package.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or similar discipline
• 5+ years of relevant engineering experience
• Strong expertise in C++ development, including experience with native libraries and performance optimization
• Familiarity with multi-threading, memory management, and software design patterns
• Proven experience delivering production-quality features with appropriate levels of testing and instrumentation
• Familiar with Git and version control workflows
• Experience with Continuous Integration / Continuous Deployment (CI/CD) and automated testing frameworks
• Strong problem-solving skills and able to work and collaborate effectively in remote, distributed teams

Responsibilities

• Design and implement game features and systems in C++ for all Zwift platforms (iOS, Windows, Android, Mac, Apple TV), ensuring optimal performance and maintainability
• Collaborate with cross-functional teams, including game engineers, backend engineers, product managers, and UX designers to design, plan, test, and deliver high-quality features
• Optimize game performance through profiling, instrumentation, and improvements in CPU utilization, memory usage, and startup times
• Build tools and frameworks to improve development workflows and empower other engineers
• Debug and resolve complex issues across a diverse set of devices and platforms, improving reliability and stability
• Contribute to code reviews, design discussions, and team planning processes
• Ensure code quality through automated testing (e.g., unit testing, integration testing, and similar)
• Advocate for and implement engineering best practices like automated testing, CI/CD pipelines, and code modularity

Preferred Qualifications

• Experience with game engines (Unity, Unreal, or custom-built) and their integration with native platforms
• Familiarity with real-time networking and multiplayer game systems
• Experience in experimentation and feature flag systems (e.g. Optimizely, Firebase, or similar)
• Experience with Java and modern Android development practices
• Solid understanding of Android app architecture, the JNI, and native-to-Java bridging
• Interest in building solutions that support our engaged Zwift Community of cyclists, runners, and fitness enthusiasts

Benefits

• Performance bonuses
• Equity
• A full range of medical, financial, and other perks and benefits