About the Role

We are looking for an experienced Senior Flutter Mobile Engineer to maintain and enhance our existing suite of mobile applications and to build high-quality cross-platform solutions for iOS and Android. This role requires strong engineering fundamentals, hands-on experience shipping production apps, and the ability to collaborate closely with product, design, and backend teams.

In addition to strong Flutter expertise, this role involves working closely with product and analytics teams to experiment, iterate, and improve user-facing features using data-driven approaches, including A/B testing and controlled rollouts.

Responsibilities

• Maintain, enhance, and scale our existing suite of mobile applications

• Design and develop cross-platform iOS and Android apps using Flutter

• Collaborate with cross-functional teams (Product, Design, Backend, QA) to translate business requirements into scalable, maintainable, and testable code

• Uphold high standards for code quality, architecture, and long-term maintainability

• Contribute to technical discussions, code reviews, and engineering best practices

• Implement and support experimentation frameworks, including feature flags, phased rollouts, and A/B testing

• Monitor production metrics, user behavior, and experiment results to inform product decisions

Requirements (Must-Have)

• 5+ years of professional experience developing mobile applications using Flutter and Dart

• Proven experience shipping and maintaining at least one production app on the Apple App Store or Google Play Store

• Strong understanding of native mobile development, including Swift and/or Kotlin

• Experience designing and running A/B tests or feature experiments in production, including:

  • Defining hypotheses

  • Implementing variants

  • Analyzing results using product or analytics metrics

• Ability to clearly communicate complex technical concepts in English

• Proven track record of delivering high-quality, scalable code in production environments

• Experience working in Agile / iterative development environments

• Bachelor’s degree in Computer Science, Engineering, or a related technical field

Preferred Experience (Nice-to-Have)

• Hands-on experience with Flutter, iOS, and Android development

• Working knowledge of Dart, Swift, and Kotlin

• Experience using experimentation or rollout tools such as:

  • Feature flags

  • Firebase Remote Config

  • Analytics or experimentation platforms

• Familiarity with mobile performance monitoring, crash reporting, and analytics tools

• Experience collaborating closely with product managers and designers on experiment-driven development

What Success Looks Like

• You ship features that are measurable, testable, and continuously improved

• You can clearly explain why a solution was chosen, not just how it was built

• You balance speed with maintainability and long-term scalability

• You use data and experimentation to inform product decisions, not guesswork