Remote Backend Developer Jobs in Irvine, CA (NOW HIRING)

Location: Remote, Eligible US Locations

About the role and about You:

Zwift is looking for a Senior Software Development Engineer to join our Zwift Companion team. In this role, you will work on Zwift's mobile app, Zwift Companion (ZC), delivering high-quality features and ensuring a seamless user experience. You will collaborate with cross-functional teams to build and enhance and maintain our apps on iOS and Android. Additionally, you will contribute to defining and executing the technical strategy to achieve our team objectives - make it easy for Zwifters to plan and start their experiences in Zwift.

We place a high value on flexibility, transparency, and fun while supporting our team to do their best work.

What you'll do: 

• Work on software features and tools that will improve Zwift Companion. You'll be expected to build out a deep understanding of the software and influence your teammates and occasionally other teams and functions.
• Drive technical solutions for software features of moderate-to-high complexity, making logical design trade-offs at the application level. For example:
•  Lead complex feature integrations. Manage end-to-end feature delivery, including alignment with external stakeholders
• Resolve challenging technical problems that require working across team boundaries
• Work on existing native mobile codebases (iOS, Android, and Kotlin Multiplatform), with a primary focus on the iOS app built in Swift and Objective-C.
• Build polished, performant user interfaces using SwiftUI and UIKit, and integrate with platform frameworks and APIs across the Apple ecosystem.
• Proactively advise your team and manager on technical approaches, helping to establish best practices and improve team capabilities.
• Continually drive software engineering best practices within the team. You'll embrace experimentation and iteration and mentor others along the same lines.
• Where possible, you'll evaluate systemic root causes with the help of other senior and staff engineers, looking to solve problems with a 3-6+ month forward vision.
• Contribute to technical strategy development, occasionally influencing cross-team technical direction.

What we're looking for: 

• 7+ years of relevant engineering experience.
• Demonstrated experience designing and developing mobile applications.
• Proficiency in native iOS development with Swift and Objective-C.
• Strong experience building UI with SwiftUI and/or UIKit.
• Solid understanding of iOS app architecture, concurrency (async/await, GCD), memory management, and the app lifecycle.
• Experience with the Apple toolchain and ecosystem: Xcode, Swift Package Manager, and App Store distribution.
• Experience with structured, methodical problem solving and debugging.
• Track record of participating in constructive dialogue with an engineering team.
• Experience applying expertise to solve problems and being able to learn quickly when in a new situation.

Bonus points: 

• Proficiency in Kotlin Multiplatform and Compose Multiplatform, and experience contributing to a shared Native + KMP solution.
• Experience with backend services development, including Kafka (or other event streaming tooling), event-driven architecture (EDA), and SQL databases.
• Understanding of Kubernetes and infrastructure as code.
• Experienced working with distributed teams.
• Interest in building solutions that support our engaged Zwift Community of cyclists, runners, and fitness enthusiasts.
• Knowledge of gRPC and Protobuf.

If Zwift determines in any stage of our interviews that any AI tools are being used without disclosure or citation, your candidacy will be disqualified.

For All US Based Full-Time Positions:

The base salary for this position ranges between $128,000.00- 204,000.00. The base salary will be based on a number of factors including the role offered, the individual's job-related knowledge, skills, qualifications, and geographic location. In addition to base salary, Zwift is proud to offer a comprehensive and competitive benefits package for all eligible employees which also includes performance bonuses, equity, and a full range of medical, financial, and other perks and benefits.